can you help me with these questions​

Can You Help Me With These Questions

Answers

Answer 1

Answer:

Girls: 50

Boys: 36

A) 60°

Step-by-step explanation:

86-14=72

72÷2=36

Girls=36+14=50

Boys=36

115+115+70=300

360-300=60°

Answer 2

Answer:

36 boys and 50 girls

the remaining angle measures 60°

Step-by-step explanation:

x = boy count

x + 14 = girl

x + x + 14 = 86

2x + 14 = 86

2x = 72

x = 36

x + 14 = 50

36 boys and 50 girls

the 4 angles of a quadrilateral = 360°

115° + 115° + 70° + x = 360°

300 + x = 360°

x = 360 - 300

x = 60°

The remaining angle measures 60°


Related Questions

BASE
-10
109
Which expression is equivalent to X X
-(
WN
?
No
O
WIN

Answers

Answer:

[tex]\displaystyle x^{\frac{2}{3}}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Exponential Rule [Multiplying]:                                                                        [tex]\displaystyle b^m \cdot b^n = b^{m + n}[/tex]Exponential Rule [Powering]:                                                                           [tex]\displaystyle (b^m)^n = b^{m \cdot n}[/tex]

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle (x^{\frac{4}{3}}x^{\frac{2}{3}})^{\frac{1}{3}}[/tex]

Step 2: Simplify

Exponential Rule [Multiplying]:                                                                        [tex]\displaystyle (x^{\frac{4}{3} + \frac{2}{3}})^{\frac{1}{3}}[/tex][Exponents] Add:                                                                                              [tex]\displaystyle (x^{2})^{\frac{1}{3}}[/tex]Exponential Rule [Powering]:                                                                           [tex]\displaystyle x^{2 \cdot \frac{1}{3}}[/tex][Exponents] Multiply:                                                                                         [tex]\displaystyle x^{\frac{2}{3}}[/tex]

Find x- and y-intercepts. Write ordered pairs representing the points where the line crosses the axes. 2x+3y=6

Answers

Answer:

x-intercept: (3, 0)

y-intercept: (0, 2)

Step-by-step explanation:

For a function like:

y = f(x)

The x-intercept is the value of x when y = 0

the y-intercept is the value of y when x = 0

Also remember that an ordered pair is written as (x, y).

In this case we have the equation:

2*x + 3*y = 6

For the x-intercept, we just replace y by zero in the equation, then we get:

2*x + 3*0 = 6

Solving this for x, we get:

2*x = 6

x = 6/2 = 3

Then in this case, the ordered pair for the x-intercept is (3, 0)

For the y-intercept, we just need to replace x by zero in the equation:

2*0 + 3*y = 6

Solving this for y, we get:

3*y = 6

y = 6/3 = 2

Then the ordered pair for the y-intercept is (0, 2)

Change the negative exponent to a positive exponent

Answers

Answer:

[tex] \frac{1}{ {6}^{8} } [/tex]

Step-by-step explanation:

when the is a base raised to a negative power.....put it under 1 and the negative power now becomes a positive power

Example: 5^-2 = 1/5^2

how tall is three feet

Answers

Answer: if you mean Inches, its 25.

Answer:

36 inches or 1 yard

Step-by-step explanation:

Geometry math Jim please help and show work thanks

Answers

Yes they are similar because all corresponding sides share the scale factor of 1.2. I hope this makes sense like it does in my head :)

D 51° F E 17 m Find the length DE. O 10.7 m O 13.2 m O 13.8 m 0 21.0 m O 21.9 m 0 27.0 m​

Answers

D 51 is correct that is the correct anwser

A line goes through the point (6,-2) and has a slope of -3. What is the value of a if the point (a,7) lies on the line? a= ?​

Answers

m=y2-y1/x2-x1

7-(-2)/a-6=-3

9/a-6=-3

9=3a-18

3a=162

a=54

Find the measure of a single exterior angle of the regular polygon shown below. If necessary, round to the nearest tenth.

Answers

Answer:

32.7 degrees

Step-by-step explanation:

This polygon has 11 sides.

The measure of all exterior angles adds up to 360.

Find the measure of a single exterior angle by dividing 360 by the number of sides.

360/11 ≈ 32.7

The measure of a single exterior angle of the given regular polygon is 32.5 degrees

We have given that the diagram of regular polygon shown below

and, we have to find the measure of a single exterior angle.

Therefore we have the given polygon has 11 sides.

What is the meaning of exterior angle?

The angle between a side of a rectilinear diagram and adjacent side extended outward.

The measure of all exterior angles adds up to 360.

We have to find the measure of a single exterior angle by dividing 360 by the number of sides

So we get,[tex]360/11 = 32.7[/tex]

Therefore, the measure of a single exterior angle of the given regular polygon is 32.5 degrees.

To learn more about the exterior angle visit:

https://brainly.com/question/17972372

Set up a proportion and use it to solve for x

Answers

Answer:

x = 25

Step-by-step explanation:

hyp/short leg

Compare large triangle to small triangle

x/15 = 15/9

multiply both sides by 15

x = 15/9 * 15

x = 25

plz help i beg PLZZZZZZ NO SKIPPP

Answers

Answer:

C

8×3=24

so the answer is c

Correct answer to your question is 3 bc 8x3=24

Need it fastttttt plssss I will give brainly ​

Answers

Answer:

385

Step-by-step explanation:

(3/5 x 10/8) - (7/9 x 3/8) + (4/5 x 7/2)

=3/4-7/24+14/5

=90/120 - 35/120 + 840/120

=46200/120

=385

Hope this helps!

Place the indicated product in the proper location on the grid.
(x + 2y)2

Answers

Answer:

32

Step-by-step explanation:

d6 plus four nine its wrong "+_)

Find the distance between two points (0, 3) and (-1,3).

Answers

Answer:

5

Step-by-step explanation: i used a calculator and it said 5.099 but just round it up to 5

Answer:

1

Step-by-step explanation:

even if it is going back-wards, it is still one, think of it as absolute value

also again, if brainly tries to delete this answer, this community really is going down the dump

The diagram shows a right angled triangle.
Find the size of angle x
Give your answer correct to 1 decimal place

Answers

Ans:40.8°

Step-by-step explanation:

sin(x)=17/26

x<π/2

x=0.7126... or 2.4289...

But x=2.4289...>π/2

So only 0.7126... meets

(0.7126.../π)*180°≈40.8°

so the answer is 40.8°

Find the surface area of each cube
26. A cube with each side length of 5.6 inches

Answers

26.) 188.16 square inches
Explanation:
Formula for surface area of cube:
6a^2
Where a represents the side length

Use the formula with the given dimension:
6 • 5.6^2 = 188.16

FINAL ANSWER: 188.16 square inches

27.) 384 square meters
Use the formula for surface area of cube:
6a^2
Where a represents the side length

Use the formula with the given dimension:
6 • 8^2 = 384

FINAL ANSWER: 384 square meters

Pls com.ment if my answers are right!
If they were, brainliest please!
Have a nice day ;) -SpaceMarsh :Dd



answer please!! It's due tomorrow ​

Answers

Answer:

15) The length of the line segment DE is 14.908.

16) The measure of the angle W is approximately 31.792°.

17) The length of the ladder is approximately 23.182 feet.

Step-by-step explanation:

15) We present the procedure to determine the length of segment DE:

(i) Determine the length of the line segment DF by trigonometric relations:

[tex]\tan C = \frac{DF}{CF}[/tex] (1)

([tex]C = 61^{\circ}[/tex], [tex]CF = 24[/tex])

[tex]DF = CF\cdot \tan C[/tex]

[tex]DF = 24\cdot \tan 61^{\circ}[/tex]

[tex]DF \approx 43.297[/tex]

(ii) Determine the length of the line segment DE by trigonometric relations:

[tex]\tan F = \frac{DE}{DF}[/tex] (2)

([tex]DF \approx 43.297[/tex], [tex]F = 19^{\circ}[/tex])

[tex]DE = DF\cdot \tan F[/tex]

[tex]DE = 43.297\cdot \tan 19^{\circ}[/tex]

[tex]DE \approx 14.908[/tex]

The length of the line segment DE is 14.908.

16) We present the procedure to determine the measure of the angle W:

(i) Determine the length of the line segment XZ by trigonometric relations:

[tex]\sin Z = \frac{XY}{XZ}[/tex] (3)

([tex]XY = 15[/tex], [tex]Z = 25^{\circ}[/tex])

[tex]XZ = \frac{XY}{\sin Z}[/tex]

[tex]XZ = \frac{15}{\sin 25^{\circ}}[/tex]

[tex]XZ \approx 35.493[/tex]

(ii) Calculate the measure of the angle W by trigonometric relations:

[tex]\tan W = \frac{XZ}{WZ}[/tex] (4)

([tex]XZ \approx 35.493[/tex], [tex]WZ = 22[/tex])

[tex]W \approx \tan^{-1} \left(\frac{22}{35.493}\right)[/tex]

[tex]W \approx 31.792^{\circ}[/tex]

The measure of the angle W is approximately 31.792°.

17) The system form by the ladder, the ground and the wall represents a right triangle, whose hypotenuse is the ladder, which is now found by the following trigonometric relation:

[tex]\cos \theta = \frac{x}{l}[/tex] (5)

Where:

[tex]\theta[/tex] - Angle of the ladder above ground, in sexagesimal degrees.

[tex]x[/tex] - Distance between the foot of the ladder and the base of the wall, in feet.

[tex]l[/tex] - Length of the ladder, in feet.

If we know that [tex]x = 6\,ft[/tex] and [tex]\theta = 75^{\circ}[/tex], then the length of the ladder is:

[tex]l = \frac{x}{\cos \theta}[/tex]

[tex]l = \frac{6\,ft}{\cos 75^{\circ}}[/tex]

[tex]l \approx 23.182\,ft[/tex]

The length of the ladder is approximately 23.182 feet.

Which of the following is an equation of the line that passes through the point (1, 1) and has a slope of 2?

Answers

Answer:

You didn't provide " the following" from which to choose.

Here are two solutions

y = 2x - 1

y - 1 = 2(x - 1)

Find the lateral area of this square based pyramid. 10in 5 in [ ? ]in?​

Answers

Answer:

Step-by-step explanation:

Lateral area, Al = a√(a² + 4h²)

Where,

a = base edge = 5 in

h = height = 10 in

Lateral area, Al = a√(a² + 4h²)

= 5√(5² + 4*10²)

= 5√(25 + 4*100)

= 5√(25 + 400)

= 5√425

= 5 * 20.615528128088

= 103.07764064044

Approximately,

Lateral area = 103.08 in²

Answer: 100

Step-by-step explanation: each side has an area of 10*5/2, or 25, and there are 4 lateral sides, so times 4, it's 100

A chemistry examination has 2 sections.
Section A has 80 marks.
Section B has 60 marks.
Alex scores 55% in Section A.
What is the greatest percentage Alex can now get in the whole examination?
Give your answer to 3 significant figures.​

Answers

Answer:

65%in a whole examination

Which of the following is a foci of x^2/16-y^2/4=1

Answers

Answer:

x(8;2)

Step-by-step explanation:

i think that  

Kip has a collection of 68 marbles. Each glass marble has a mass of 18.5 grams. Each steel marble has a mass of 66 grams. What is the total mass of 48 glass marbles and 20 steel marbles in kilograms? PLS HELP!

Answers

Answer:

2.208 kg

Step-by-step explanation:

Total mass of glass marble

= 18.5×48

= 888 g

Total mass of steel marble

= 66×20

= 1320 g

Total mass of 68 marble including steel 20 and glass 48

= 888 + 1320

= 2208 g

In kilograms 2208

= 2.208 kg

Please mark as brainliest answer

Fiona and Pip win some money and share it in the ratio 3:1. Fiona gets £30. How much did they win in total?

Answers

Answer:

40

Step-by-step explanation:

30÷3=10

30+10=40

Hope this helps! :)

URGENT!!
Choose the steepest line.
y = -2x + 10
y = 5x - 20
y = 10x + 1
y = -12x - 3

Answers

Answer:

y=-12x-x

Step-by-step explanation:

y=mx + b

m=slope

m = -12

slope = rise / run -12/1

The focus is the point inside a _____________ that helps determine the shape of the curve.
1.vertix
2.parabola
3.directrix
4.quadratic

Answers

4 quabratic

I answered it recently

The focus is the point inside a parabola that helps determine the shape of the curve.

What is a parabola?

A parabola is an equation of a curve, such that any point on the curve is equidistant from a fixed point called the focus and a fixed line called the directrix of the parabola.

The equation of a parabola:

y = a(x - h)² + k

We have,

A parabola is a type of curve that is formed when a plane intersects a cone at an angle that is parallel to one of the cone's sides.

One of the key defining features of a parabola is that all points on the curve are equidistant from a fixed point, known as the focus, and a fixed line, known as the directrix.

The focus is located inside the parabola, and its distance from the directrix is equal to the distance from any point on the parabola to the directrix.

This property allows us to use the focus and directrix to determine the shape and location of the parabola.

Thus,

The focus is the point inside a parabola that helps determine the shape of the curve.

Learn more about parabola here:

https://brainly.com/question/21685473

#SPJ2

Question 2 - Cost of a Paver
The pavers cost $8 per square metre ($8/m?). There are 4 pavers in a
square metre.
Calculate how much one paver costs. Show your working
2$ each

Answers

Answer:

8$ divided by 4.which is equal to 2

The sum of squares of two
numbers is 80 and the square of
difference between the two numbers
is 36. Find the product of two
numbers .

Answers

Answer:

the product of the 2 numbers is 22

Step-by-step explanation:

x² + y² = 80

(x - y)² = 36

=>

x - y = 6

or y - x = 6

let's start with the first one x-y=6

x = 6 + y

=>

(6+y)² + y² = 80

y² + 6y +6y + 36 + y² = 80

2y² + 12y + 36 = 80

2y² + 12y - 44 = 0

y² + 6y - 22 = 0

the solution of a quadratic equation

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case here we have an squadron in y.

a=1

b=6

c=-22

(-6 ± sqrt(36 + 4×22))/2 = (-6 ± sqrt(36+88))/2 =

= (-6 ± sqrt(124))/2 = (-6 ± sqrt(4×31))/2 =

= (-6 ± 2×sqrt(31))/2 = -3 ± sqrt(31)

y1 = -3 + sqrt(31)

y2 = -3 - sqrt(31)

=>

x1 = 6 + -3 + sqrt(31) = 3 + sqrt(31)

x2 = 3 - sqrt(31)

control :

(-3 + sqrt(31))² + (3 + sqrt(31))² = 80

9 - 3 sqrt(31) - 3 sqrt(31) + 31 + 9 +3 sqrt(31) + 3 sqrt(31) + 31 = 80

9 + 31 + 9 +31 = 80

18 + 62 = 80

80 = 80 correct

solving now for y-x=6

delivers exactly the same calculations, just with x and y trading places.

so, the resulting 2 number pairs are the same.

the product of the 2 numbers :

(3 + sqrt(31))(-3 + sqrt(31)) = -9 - 3 sqrt(31) + 3 sqrt(31) + 31 =

= -9 + 31 = 22

(3 - sqrt(31))(-3 - sqrt(31)) = -9 + 3 sqrt(31) - 3 sqrt(31) + 31 =

= 22

so, the product is the same in both cases.

Which value of a would make the following expression completely factored?

x²-a

A.12
B.36
C.49
D.81

Answers

Answer:

The answer is 12.               

12 is not a perfect square like the others.      

For the polynomial below, -2 is a zero.
f(x) = x² + 8x + 18x + 12
Express f(x) as a product of linear factors.
need answer asap!

Answers

Step-by-step explanation:

=(-2)2+8(-2)+18(-2)+12

=4-16-36+12

=4+52+12

=56+12

=68

OR

=4-16-36+12

= -12-24

= -36

Need help on this question asap please

Answers

Answer:

[tex]\dfrac{1}{6.25} = \dfrac{t}{25}[/tex]

Step-by-step explanation:

A proportion is setting two ratios to be equal to each other.

You are given the price of 1 ticket, so you can set up a ratio of price to ticket.

$6.25 to 1 ticket, or [tex] \dfrac{6.25}{1} [/tex]

The other ratio involves the $25 and the unknown number of tickets, t, $25 can buy.

$25 to t tickets, or [tex] \dfrac{25}{t} [/tex]

To write a proportion, set the two ratios equal.

[tex] \dfrac{6.25}{1} = \dfrac{25}{t} [/tex]

This proportion does not appear in the choices.

Take the reciprocal of both sides.

[tex]\dfrac{1}{6.25} = \dfrac{t}{25}[/tex]

You are on a ship at sea. You see a lighthouse in the distance. You know the lighthouse is 145 feet tall. You measure the angle of elevation to the top of the lighthouse at 5 degrees. How far are you from the bottom of the lighthouse? *

Answers

Answer:

1657.14 ft

Step-by-step explanation:

Tan = opposite / adjacent

tan 5 = 145 / adjacent

0.0875 =  145 / adjacent

adjacent = 145 / 0.0875

= 1657.14 ft

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Some hep with this question pls rewrite each of these statements using mathematical symbols question) therefore the number X equals the square root of 72 Demand is forecast for the next five months as 200, 300, 500, 300, 200. If the production planner decides to adopt a level strategy over the next five months, what quantities of products should be produced? Identify an activity that enhances flexibility and explain how it can be beneficial. Crystal Corporation makes $3,100 payments every month for leasing office equipment. Crystal recorded a lease payment as follows: Lease payable 1,860 Interest expense 1,240 Cash 3,100 Amortization expense 1,860 Right-of-use asset 1,860 Crystal must have a(n): WILL MARK BRAINLIEST TO THE FIRST PERSON OR WHO IS RIGHT!!!!The work of a student to solve a set of equations is shown:Equation 1: m = 8 + 2nEquation 2: 6m = 4 + 4nStep 1: 6(m) = 6(8 + 2n) [Equation 1 is multiplied by 6.]6m = 4 + 4n [Equation 2]Step 2: 6m = 48 12n [Equation 1 in Step 1 is simplified.]6m = 4 + 4n [Equation 2]Step 3: 6m + 6m = 48 12n + 4n [Equations in Step 2 are added.]Step 4: 0 = 48 8n Step 5: n = 6 In which step did the student first make an error? Step 3 Step 5 Step 4 Step 2 The Rockwell hardness of a metal is determined by impressing a hardened point into the surface of the metal and then measuring the depth of penetration of the point. Suppose the Rockwell hardness of a particular alloy is normally distributed with mean 70 and standard deviation 3. (Rockwell hardness is measured on a continuous scale.)a. If a specimen is acceptable only if its hardness is between 67 and 75, what is the probability that a randomly chosen specimen has an acceptable hardness?b. If the acceptable range of hardness is (70-c, 70+c) , for what value of c would 95% of all specimens have acceptable hardness?c. If the acceptable range is as in part (a) and the hardness of each of ten randomly selected specimens is independently determined, what is the expected number of acceptable specimens among the ten?d. What is the probability that at most eight of ten independently selected specimens have a hardness of less than73.84? [Hint: Y = the number among the ten specimens with hardness less than 73.84 is a binomial variable; what is p?] Cmo era visto el Faran por sus sbditos y que funciones realizaba? Sam needs to find the circumference of a circle with a diameter of 24 inches. He uses a calculator to find the circumference. Which answer is reasonable?72.013678 in75.398223 in85.335372 in80.332161 in Select the correct answer.On the curve y= x^2+ 1 point Q has the coordinates (1.3.2.69). Estimate the slope of the curve at point Q by taking values very close to the x-coordinate of Q.OA 2.5OB. 2.6OC. 3.3OD 5.2 Mrs. Glass, a new teacher, notices the literature that the English language learners are required to read has many difficult words. She discusses the situation with her mentor teacher, who has been teaching English language learners for many years and is experienced with the laws and requirements for English language learner education. Of the following, what is the most appropriate response by the mentor teacher?A The teacher should work with the students to help explain the meaning of the words so the students are exposed to a wide vocabulary.B The teacher should provide supplemental literature that contains words familiar to the students.C The students should highlight the words they do not know and look them up in a dictionary.D The teacher should rewrite the text to shorten the difficult words to make the literature more understandable for the students. TRUE FALSE?When we divide fractions we change the division sign to a multiplication sign and flip, or take the reciprocal, of the second fraction. Find the value of the angle rounded to 1 DP.The diagram is not drawn accurately A student uses the ratio of 4 oranges to 6 fluid ounces tofind the number of oranges needed to make 24 fluidounces of juice. The student writes this proportion:4 24616Explain the error in the student's work. PLSSSS HELP fast pls !! 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