help me someone i need help

Help Me Someone I Need Help

Answers

Answer 1

Answer:

xy and bc is parallel

70 degrees

Step-by-step explanation:

a) it's a rule

b) since angle xbc is 55 degrees, angle xcb must also be 55 degrees as it's a isoceles triangle. then you would take 180 degrees to subtract the sum of angle xcb and xbc which would give you 70 degrees


Related Questions

Find the meeting point of these two rights: y = 5x - 6 and y = -4x + 3

Answers

The meeting point is (1, - 1).

Look at the attachment to see.

Happy to help!

Small scooters cost £80 and large scooters cost £130. A school buys few scooters for the playground for £1000. How many of the smaller and larger scooter did they buy?

Answers

Answer:

Small scooters = 6

Large scooters = 4

Step-by-step explanation:

Let S represents small scooter and L represents large scooter

The cost of a small scooter is £80

Mathematically,  the cost of S number of small scooters is

80S

The cost of a large scooter is £130

Mathematically,  the cost of L number of large scooters is

130L

The total amount spent on both scooters is £1000

Mathematically,

80S + 130L = 1000

So we have 2 unknowns and only 1 equation. Therefore, we have use trial and error method .

Trial and Error Method:

80S + 130L = 1000

80S = 1000 - 130L

S = (1000 - 130L)/80

Let’s suppose they bought 1 large scooter

S = (1000 - 130(1))/80

S = 10.875

Number of scooters cannot be in fraction so 1 doesn’t work

Let’s suppose they bought 2 large scooter s

S = (1000 - 130(2))/80

S = 9.25

Number of scooters cannot be in fraction so 2 doesn’t work

Let’s suppose they bought 3 large scooter s

S = (1000 - 130(3))/80

S = 7.625

Number of scooters cannot be in fraction so 3 doesn’t work

Let’s suppose they bought 4 large scooters

S = (1000 - 130(4))/80

S = 6

So that means they bought 6 small scooters and 4 large scooters.

Similarly, other combinations for scooters don’t work since they yield either fractional value or negative value which cannot be correct.

Therefore, the only possible combination of small and large scooters is

6 Small scooters

4 Large scooters

Verification:

80S + 130L = 1000

80(6) + 130(4) = 1000

480 + 520 = 1000

1000 = 1000 (satisfied)

Can someone help me on this please

Answers

i’m sorry idk. i just need to answer questions, i hope you understand!

Of 25 test scores, 8 are less than or equal to 75. What is the percentile rank of a test score of 75?
a. 8
b. 17
c. 32
d. 68

Answers

The answer is c.32



8/25 scored 75 or less



8/25=0.32





0.32 = 32%




32% scored 75 or less






If you got a 75, you rank higher than 32% of students, or in the 32nd percentile


NEED HELP ASAP!!!!!
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Answers

Answer:

20,000 is the length of the book with 20,000 pages.

65 m
16 m
b
What is the length of the missing leg?

Answers

Answer:3,969[tex]^{2}[/tex](squared) or 63

Step-by-step explanation:

First you must plug the answers into the equation A[tex]^{2}[/tex] + B[tex]^{2}[/tex]=C[tex]^{2}[/tex]

Then you square the numbers. example: 2[tex]^{2}[/tex]=2 x 2=4

After that you subtract from both sides of the equation to get the variable by itself.     Example:   4+b[tex]^{2}[/tex]=10    

                              -4       -4

                                 b[tex]^{2}[/tex]=10

After that you square both sides or you could say answer[tex]^{2}[/tex]

Solve the following: a) 3x2+ 4 9.5 b) 7+2x 5

Answers

Answer:

a= 55.5

b= 45

hope it is helpful for u

Please help!!! Idk how to do this.

Answers

Answer:

Hello! I think x= 1.6 or 1.3 in this situation

Step-by-step explanation:

The fact that the number 7 on the left quadrilateral is 6.3, and the 4's are 3.6, I have come to the conclusion that x equals either 1.6 or 1.3.

In an experiment, the probability that event A occurs is 5/8 , the probability that event B occurs is 2/9 , and the probability that events A and B both occur is 1/5 . What is the probability that A occurs given that B occurs?

Answers

Step-by-step explanation:

p(A|B) = p(A and B) / p(B) =(1/5) / (2/9) = 0.9

The probability that event A occurs is 5/8 , the probability that event B occurs is 2/9 , and the probability that events A and B both occur is 1/5 . The probability that A occurs given that B occurs is 0.9.

What is the probability?

Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.

P(E) = Number of favorable outcomes / total number of outcomes

The probability that event A occurs is 5/8

The probability that event B occurs is 2/9

The probability that events A and B both occur is 1/5.

So, The probability that A occurs given that B occurs

P(A|B) = P(A and B) / P(B)

          = (1/5) / (2/9)

          = 0.9

Learn more about probability here;

https://brainly.com/question/11234923

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Please help solve ASAP! In the diagram below, what is the approximate length of the minor arc AB?

Answers

Answer:

42

Step-by-step explanation:

Answer: It would be 42 Centimeters! :D

An animal shelter houses dogs, cats, and rabbits. There are 126 animals at the shelter. Of the animals, 13 are cats. Three fourths of the remaining animals are dogs. How many of the animals are rabbits? Show your work.

Answers

Answer:

28 rabbits

Step-by-step explanation:

From the statement, you can write the following:

d+c+r= 126

d=dogs

c= cats

r= rabits

Then, you have that there are 13 cats and that three fourths of the remaining animals are dogs:

c=13

d=(126-13)*(3/4)= 113*(3/4)= 85

Now, you can isolate r, to find the number of rabbits:

r=126-d-c

r= 126-85-13

r= 28

According to this, the are 28 rabbits.

Answer:

pppoooooiiinnttssss

Step-by-step explanation:

This year (10 years after you first took out the loan), you check your loan balance. Only part of your payments have been going to pay down the loan; the rest has been going towards interest. You see that you still have $112,681 left to pay on your loan. Your house is now valued at $190,000. Your current situation How much of the original loan have you paid off? (i.E, how much have you reduced the loan balance by? Keep in mind that interest is charged each month - it's not part of the loan balance.)

Answers

Answer:

The below is the first of paragraph in the question which is missing:

Suppose that 10 years ago you bought a home for $150,000, paying 10% as a down payment, and financing the rest at 8% interest for 30 years.

$22,319.00

Step-by-step explanation:

In order to determine the portion of the original loan that has been paid off,we need to ascertain the original loan amount as below:

loan amount=purchase price of the home-down payment

purchase price  is $150,000

down-payment =10%*$150,000=$15,000

loan amount=$150,000-$15,000=$135,000

If the loan amount has reduced to $112,681,hence the loan amount paid off is the difference between the original loan amount and the balance now:

original loan paid off=$135,000-$112,681=$22,319.00  

What is the decimal multiplier to increase by 4.1%?

Answers

Answer:

 1.041.

Step-by-step explanation:

4.1 % = 4.1 / 100 = 0.041 as a decimal fraction.

So ehen we increase a quantity by 4.1% we multiply by  1.041.

Saturn is 8.867 × 108 miles away from the Sun. Uranus is 1.787 × 109 miles away from the Sun. Approximately how many times farther is Uranus from the Sun than Saturn is?
A. 0.2 times
B. 2 times
C. 20 times
D. 200 times

Answers

Answer:

Uranus is approximately 5 times farther from the sun than Saturn. The smallest zero is x = -10 as its the left-most value on a number line.

Step-by-step explanation:

Saturn:8.867 x 108 = 957. 636

Uranus: 1.787 x 109 = 194.783

b. 2 times

Answer:

a =  0.2 times

A rhombus has side lengths of 25. What could be the lengths of the diagonals? *

Answers

Answer:

0 < x < 50

Step-by-step explanation:

We start out with a square (which IS a rhombus for all sides are equal in

length. That's when the diagonals are equal in length, which, by the

Pythagorean theorem equal to

5*√2

C^2=a^2+b^2

=25^2+25^2

Factorise

c^2=25^2 × 2

c=square root of 25^2 × 2

That is

c=√25^2 × 2

=5×√2

As we decrease the angle on the bottom left and increase the angle on

the bottom right, the green diagonal increases to 25+25 or 50, but never gets to 50. The red diagonal shrinks to 0 but never gets to 0.

the lengths of a diagonal can only be in the open interval from 0 to 50. In interval notation that is (0,50) or 0 < x < 50.

Answer:

Minimum value: 0, Maximum value: 50

Step-by-step explanation:

A rhombus is a quadrilateral with side of same length but different angle pairs. Let consider the following rhombus (See attachment). It is known that sum of all angles in quadrilateral is equal to 360°. The length of each diagonal is, respectively:

[tex]d_{1} = 2\cdot l\cdot \sin 0.5\alpha[/tex]

[tex]d_{2} = 2\cdot l \cdot \sin (90-0.5\alpha)[/tex]

[tex]d_{2} = 2\cdot l \cdot (\sin 90^{\circ}\cdot \cos 0.5\alpha - \cos 90 \cdot \sin 0.5\alpha)[/tex]

[tex]d_{2} = 2\cdot l \cdot \cos 0.5\alpha[/tex]

Each expression shows that value of a diagonal changes at the expense of the other one inasmuch angle changes. The minimum and maximum values of any of the diagonal occur when trigonometric functions are equal to 0 and 1, respectively.

Minimum value: [tex]d_{min} = 0[/tex], Maximum value: [tex]d_{max} = 2\cdot l = 2 \cdot (25) = 50[/tex]

Which data collections are considered a census? Select all that apply.
a. Ally wants to find out the favorite food of students in her math class, so she surveys the first
ten students who walk into class.
b. Isaac wants to find out the least favorite school subject of the students in his science class, so
he surveys all the students in science class.
c. Malik wants to find out how much time seventh graders in his school spend doing homework
each night, so he surveys the 13-year-old boys in the seventh grade.
d. Emily wants to find out how much time soccer players on her team spend practicing on their
own each week, so she surveys each girl on the team.
e. Lucas wants to find out the favorite song of the singers in his school chorus, so he surveys his
close friends in the chorus.

Answers

Answer: Choice B.

Step-by-step explanation:

Censuses are complete data collections of every member of a population.

For example, the U.S. Census occurs every 10 years and documents every member of the American population.

Choice A only surveys the first ten students; this is not a complete census.

Choice B surveys all the students in the targeted data group. This is a census.

Choice C only surveys the male students, even though there are female students in his data group. This is not a census.

Choice D only surveys the girls on the soccer team, even though there may be boys on the team as well. This is not a census.

Choice E only surveys his friends in the chorus, even though there may have been people that were not his close friends. This is not a census.

Only choice B is a complete census.

Answer:

choice B

Step-by-step explanation:

because choice b is the only complete census  

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Answers

Answer:

|-3| - |6| = 9

| 6 - -3| = | 6+3| = 9

Step-by-step explanation:

The distance between points is given by

d = sqrt( (x2 -x1) ^2 + (y2-y1) ^2 )

   

Since the y coordinates are the same

d = sqrt( (x2 -x1) ^2  )

d = sqrt( x2-x1)^2)

Or the distance between the two points

The distance between them is 9 units

|-3| - |6| = 9

| 6 - -3| = | 6+3| = 9

find the values of t6 and d for the arithmetic sequence with t6= 4 and t10= -4

Answers

Answer:

t1 = 14  d= -2

Step-by-step explanation:

tn = t1 + d ( n-1)

t6 = t1 + d(6-1)

4 = t1+ 5d

t10 = t1 +d (10-1)

-4 = t1 +d9

Take the two equations and subtract to eliminate a1

4 = t1+ 5d

- (-4 = t1 +d9)

-------------------------

4 = t1+ 5d

+4 =- t1 -d9

-------------------------

8  =   -4d

Divide each side by -4

8/-4 = -4d/-4

-2 =d

Now we can find t1

4 = t1+ 5d

4 = t1 + 5(-2)

4 = t1 -10

Add 10 to each side

4+10 = t1

14 = t1

Answer:

A

Step-by-step explanation:

t1 = a

tn = a + (n-1)d

t6 = a + 5d = 4

a = 4 - 5d

t10 = a + 9d = -4

4 - 5d + 9d = -4

-8 = 4d

d = -2

a = 4 - 5(-2)

= 4 + 10

= 14

"Heavy Water" is a name given to a compound used in some nuclear reactors. Heavy water costs about $1,500 per gallon. If a nuclear plant spent $10,500 on heavy water, how many gallons of water were bought?

Answers

Answer:

7 gallons of water were bought

Step-by-step explanation:

This question can be solved using a rule of three.

One gallon costs $1,500. How many gallons cost $10,500?

1 gallon - $1,500

x gallons - $10,500

[tex]1500x = 10500[/tex]

[tex]x = \frac{10500}{1500}[/tex]

[tex]x = 7[/tex]

7 gallons of water were bought

What is the length of the missing side? Hint: use the Pythagorean Theorem.

Answers

Answer: To find the missing length= WX= √9^2+12^2

WX= 15

Step-by-step explanation:

which two triangles are congruent

Answers

Answer:

A & C

Step-by-step explanation:

When two triangles are congruent they will have exactly the same three sides and exactly the same three angles

Answer:

Triangles A and C are congruent.

Step-by-step explanation:

Congruent triangles are when two triangles are congruent they will have exactly the same three sides and exactly the same three angles. The total of the angles of all triangles is 180, so then add all the angles then subtract that number from 180.

A: 110+30=140 (180-140=40)

B: 30+45=75 (180-75=105)

C: 110+40=150 (180-150-30)

Since Triangles A and C have the same angles, then they are congruent!!!

Bryan's hockey team is purchasing jerseys. The company charges $ 250 for a onetime set-up fee and $ 23 for each printed jersey. Expression represents the total cost of x number of jerseys for the team?

Answers

Answer:

$250 + $23x

Step-by-step explanation:

One time set-up fee for jerseys = $250

cost of one jersey = $23

therefore, cost x jersey = cost of one jersey*x = 23x

Total cost for this deal will be sum of  One time set-up fee for jerseys and cost x jersey

Total cost = One time set-up fee for jerseys + cost x jersey

Total cost =  $250 + $23x

Expression represents the total cost of x number of jerseys for the team is  $250 + $23x.

Solve the triangle m<N= 118°, m<P= 33° and m=15. Round to the nearest tenth. Please show work.​

Answers

Answer:

M = 29

27.31838095 = n

16.8511209 = p

Step-by-step explanation:

M = 180 -33-118 = 29

We can use the rule of sines

sin A          sin B           sin C

------------ = ---------- = ------------

a                  b               c

sin 118          sin 29        

------------ = ----------

n                  15              

Using cross products

15 sin 118 = n sin 29

Divide by sin 29

15 sin 118 / sin 29 = n

27.31838095 = n

sin 33          sin 29        

------------ = ----------

p                  15              

Using cross products

15 sin 33 = p sin 29

Divide by sin 29

15 sin 33 / sin 29 = p

16.8511209 = p

If the height of a parallelogram is 4 times more than it’s base, and the area is 221 sq in, what is the base and height?

Answers

Answer:

Base = 13in

Height = 17in

Step-by-step explanation:

Step-by-step explanation:

height of a parallelogram = 4 times more than it’s base

Let height = H

Base = B

H = 4 + B

area of the parallelogram = 221 in²

area of the parallelogram = base × height

221 = B × H = B × (4+B)

221 = 4B + B²

B² + 4B - 221 = 0

Using almighty formula to find B

See attachment for explanation

From the calculation:

Since the dimension of the parallelogram can't be negative, B = 13in

Height = B + 4 = 13+4

Height = 17in

Answer:

Base = 13 inches

Height = 17 inches

Step-by-step explanation:

The formula to find the area of a parallelogram = Base × Height

Let's represent Base = B

Height = H

From the question, the height is 4 times more than the Base

Height(H) = B + 4

Area = 221 square inches

Therefore, area of a parallelogram = Base × Height

221 sq in = B ×( B+4)

221 sq in = B² + 4B

B² + 4B - 221 = 0

We would solve the quadratic equation using factorisation method. Hence,

B² + 17B - 13B - 221 = 0

(B²+ 17B) - (13B - 221) = 0

B(B + 17) - 13(B + 17) = 0

(B + 17) (B - 13) = 0

B + 17 = 0

B = - 17

Or

B - 13 = 0

B = 13.

From the above calculation, since B = Base

B = -17 inches Or 13 inches

The base of a parallelogram cannot be negative, hence , The Base of the Parallelogram = 13 inches.

We are told that the height of the Parallelogram is 4 times more than the Base. This was represented but the equation

B + 4 = H

Since B = 13 :

13 + 4 = H

Height(H) = 17 inches.

Therefore, The base of the Parallelogram is 13 inches while the height of the Parallelogram is 17 inches.

Solve for x in the equation 2 x squared + 3 x minus 7 = x squared + 5 x + 39.

Answers

X1 = -4.72842, X2 = 9.72842

Answer:

its D

Step-by-step explanation:

on edge

(sin5-sin15+sin25-sin35)/(cos5-cos15-cos25+cos35) =cot10​

Answers

Answer:

Step-by-step explanation:

(sin5-sin15+sin25-sin 35)/(cos 5-cos 15+cos 25 +cos 35)[tex]=\frac{-(sin 35-sin 5)+(sin 25-sin 15)}{(cos 35+cos 5)-(cos 25+cos 15)} \\[/tex]

[tex]=\frac{-2 cos \frac{35+5}{2}sin \frac{35-5}{2}+2 cos \frac{25+15}{2} sin \frac{25-15}{2} }{2cos \frac{35+5}{2}cos \frac{35-5}{2}-2cos \frac{25+15}{2} cos \frac{25-15}{2} }[/tex]

[tex]=\frac{-cos 20 sin 15+cos 20 sin 5}{cos 20 cos 15-cos 20 cos 5} \\[/tex]

[tex]=\frac{- cos 20(sin 15-sin 5)}{cos 20(cos 15-cos 5)}[/tex]

[tex]=\frac{-(sin 15-sin 5)}{cos 15-cos 5)} \\=\frac{-2cos \frac{15+5}{2}sin \frac{15-5}{2} }{-2 sin \frac{15+5}{2}sin \frac{15-5}{2} } } }[/tex]

[tex]=\frac{cos 10 sin 5}{sin 10 sin 5}[/tex]

[tex]=\frac{cos 10}{sin 10}[/tex]

=cot 10

Please can someone help! I will mark you branliest!

Answers

27.47 should be the correct answer!

A skydiver descends at 20 1 3 kilometers per hour after deploying their parachute. Which of the following expressions represents the change in the skydiver's altitude if they descend for 4 7 of an hour?

Answers

1250mph you'd tear through the crust of the earth and create a supervolcano to end all of us.

Step-by-step explanation:

Never fall that fast when parachuting, only you can prevent supervolcanoes.

In the figure, find m∠ABD if m∠ABC = 85° and m∠DBC = 61°.
Question 3 options:

A)

24°

B)



C)

146°

D)

29°

Answers

Answer:

A. 24°

Step-by-step explanation:

ABC is 85° which is the whole angle. DBC is a part of ABC and is 61°. If we do 85-61=24. The answer would be 24°.

PLZ MARK BRAINLIEST!!!

If m ∠ABC=85° and m ∠DBC=61° then m  angle ABD=24°. Hence the option A is correct.

What is an angle?

An angle is the figure formed by two sides of a figure ,  sharing a common endpoint, called the vertex of the angle.

How to determine angle between lines?

From the given figure we can conclude that ∠ABD=∠ABC-∠DBC.

We have been given that m ∠ABC=85° and m ∠DBC=61°

∠ABC=85/m and ∠DBC=61/m

Put in the above equation

∠ABD=∠ABC-∠DBC

∠ABD=85/m-61/m

=24/m

we have been find m ∠ABD so we have to multiply 24/m by m is 24°.

Hence the value of m angle ABD=24 degrees.

Learn more about angles at https://brainly.com/question/25716982

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Evaluate cosθ when sinθ = -7/8 and θ is in Quadrant IV.

Answers

Answer:

cosθ= [tex] \frac{ \sqrt{15} }{8} [/tex]

Step-by-step explanation:

Please see attached picture for full solution.

In the 4th quadrant, the cosine of an angle is positive.

The opposite side takes the negative sign in -⅞ since it is below the x-axis. Likewise, we reject [tex]x = - \sqrt{15} [/tex] since x lies on the right side of the y axis.

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Assume that Sunday is represented as day 0, Monday is represented by day 1, and so on. If today is Monday (day 1), determine the day of the week it will be at the end of 155 days. Assume no leap years. The New York Transportation Department issued a report indicating that over the past year, on average, 234 accidents occurred at the intersection of Broad Street and Pine Street. The transportation department has indicated tahta traffic light will be installed if there is at least an 80% probability of more than two accidents at this intersection in any given week. What is the probability a light wil be installed? A. 11.3% B. 94.1% C. 17.4% D. 88.9% E. None of the above Based on the description of the scenario, which of the variables is the dependent variable? what is 5x+2y=9y=7x Environmental recovery company RexChem Partners plans to finance a site reclamation project that will require a 4-year cleanup period. If the company borrows $4.1 million now, how much will the company have to get at the end of each quarter in order to earn 15% per year, compounded weekly on its investment? A mathematics teacher wanted to see the correlation between test scores andhomework. The homework grade (x) and test grade (y) are given in the accompanyingtable. Write the linear regression equation that represents this set of data, roundingall coefficients to the nearest hundredth. Using this equation, estimate the homeworkgrade, to the nearest integer, for a student with a test grade of 68.Homework Grade (x) Test Grade (y)X | Y88 | 9055 | 5589 | 9185 | 8861 | 5276 | 7676 | 8161 | 59 how is an oilgarchy different from a monarchy? A) Historically, oligarchies tended to replace monarchies as a common form of government B) Oilgarchies are only a theory, while monarchies have been around for thousands of years C) oligarchies are rule but the few people or a small group, while monarchies are usually ruled by one person. D) historically, oligarchies were mostly found in asian areas while monarchies were the only form of european government How did Venice differ from most European cities in theMiddle Ages?AIt was on the eastern end of the Silk RoadBIt had a large population of Chinese immigrantsIt was a center of international commerceDit used paper money to buy and sell goods What is 60% of 150? Please answer. Please help me in this small question. Please help 50point reward!! show evidence 1g: Is it over or under car payment1h: How much is his car payment spending over or under the Guidelines? -------------------------------------------------------------------------------------------------------1i: car insurance Is it over or under?1j: How much is his car insurance spending over or under the Guidelines? *-------------------------------------------------------------------------------------------------------Guidelines Transportation is 11% which = $671 If you like, make a big hit and add some beads to the bottom of the bracelet for some added sparkle.What does make a big hit mean in the sentence?A.strike something hardB. surprise someoneC. do something specialD. make someone happy What is the area and perimeter of the length is 1.5 m and a width being 0.25 m? Thank you if ur a helper! Select the correct answer.Select the verb form that correctly completes this sentence.Nosotros estamos ____con el profesor.A.hablamosB.hablemosOC.hablandoD.hablas it is important to increase the area under irrigation ? why ? Mary receives a $10,000 inheritance on her 21st birthday. She pays $500.00 a month for rent; owes$9,000.00 on her car loan with an interest rate of 5%; and owes $50,000 in student loan debt with a fixedinterest rate of 3%. She has a Visa Card with a balance of $600 at 16% interest.Which is the wisest choice for Mary?AUse it all to pay down the student loan debBPut it all in a savings account that has an interest rate of 2%.CUse most of it to pay off the $600 credit card andaDUse it all to pay rent in advance. does the rule indicate what form to use in the caption shown above? What are the three common types of lung cancer Lincoln's approach to the South after the Civil War was: A Balanced incorrect answer B Timid incorrect answer C Vindictive incorrect answer D Hands-off incorrect answer who fought in the Persian Wars?