Mathematics College

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Answer 1

Answer:

Step-by-step explanation:

Statement Solution

1. AB = CB Definition of isosceles triangle

2: AD = DC BD is the median to base AC

3. BD = BD Reflexive property

4. ΔADB ≅ ΔADC Side Side Side Congruent

Related Questions

Find the cos of angle T....

Answers

Answer:

C = 24/25

Step-by-step explanation:

Recall, CAH.

Thus:

Cos T = adjacent/hypotenuse

Reference angle = T

Adjacent = 24

Hypotenuse = 25

Therefore,

Cos T = 24/25

PLEASE HELP!!!

10 in.
A semicircular
window has a
radius of 10 in.
What is the area of
the window?

Answers

Answer:

area of window=1/2(πr²)=πr²/2=10²/2 π=50πinch²=50×3.14=157inch²

Find the x and y - intercepts for the following equation. Then use the intercepts to graph the equation. y= -1/3x -2

Answers

Answer:

y intercept is -2

x intercept is -6

Step-by-step explanation:

Please answer quickly 14 points for it :)

Answers

Answer:

0.65, 2.05, 2.56, 5.06, 5.62

Answer: 0.65, 2.05, 2.56, 5.06, 5.62.

X+y=15-2x+5y=-2 solve your systems of solutions and record your answer as an ordered pair

Answers

Answer:

x = 11 and y = 4

Step-by-step explanation:

Given equations are :

x+y=15 ...(1)

-2x+5y=-2 ...(2)

We need to solve the systems of equations.

Multiply equation (1) by 2.

2x+2y=30 ...(3)

Adding equation (2) and (3).

-2x+5y+2x+2y = -2+30

7y = 28

y = 4

Put the value of y in equation (1).

x+4=15

x = 11

So, the solution of the given equations are x = 11 and y = 4.

Help!! I’ll give u Brainly ASAP!

Answers

Answer:

-2, 4

Step-by-step explanation:

basically just move the dot the same distance on the other side

A parabola intersects the x-axis at x=−4 and x=8.

What is the equation for the axis of symmetry?
A. x = - 4 B. x = 0 C. x = 2 D. x = 6

Answers

Answer:

C. x=2

Step-by-step explanation:

The axis of symmetry divides the parabola into two equal parts. FRom point x=-4 to x=8, the difference is 12 units and the centre is6 units on each side. Using a number line, the axis of symmetry is at point x=2

Answer:

C. x=2

Step-by-step explanation:

(x+4)(x-8) = x²-4x-32 = (x-2)² - 36

vertex: (2,-36)

axis of symmetry: x = 2

Evaluate the expression: 3a2 + 2b2 when a = -3 and b = 6

Answers

Change the variables to numbers: 3(-6)2+2(6)2
Multiply 3 and -6=-18*2= -36
Multiply 2 and 6=12*2=24

-36+24= -12

(-2)⋅(-4.5)=?
What is "?"

Answers

Answer:

(-2).(-4.5) = 40

Step-by-step explanation:

(-2).(-4.5)

= -2. (-20)

= 40

The value of (-2) x (-4.5) using integer is 9.

What are Integers?

Integers come in three types:

Zero (0)Positive Integers (Natural numbers)Negative Integers (Additive inverse of Natural Numbers)

Given:

We have multiply (-2) x (-4.5)

As, we know from integers

(-) x (-) = (+)

So, the value after multiplication is positive.

Thus, (-2) x (-4.5)

= 2 x 4.5

= 9

Learn more about integers here:

https://brainly.com/question/15276410

#SPJ5

Which of the following is the solution to the equation − 3 = 11? Group of answer choices
8
13
14
33

Answers

Answer:

Step-by-step explanation:

-3 = 11

= 11 + 3 = 14

14 is the correct answer

Bethany is working her way through school. She works two part-time jobs for a total of 30 hours a week. Job A pays $5.90 per hour, and Job B pays $7.20 per hour. How many hours did she work at each job the week that she made $193.90.

Answers

Answer:

13 hours at Job B, and 17 hours at Job A.

Step-by-step explanation:

13×7.20= 93.60

17×5.90=100.30

100.30+93.60= 193.90

What is the range of the following set of data?
4, 8, 3, 5,5,7,6,4

Answers

Step-by-step explanation:

4 + 8 + 3 + 5 + 5 + 7 + 6 + 4 divided 8

42 divided 8

5,25

cmiiw!

To find range subtract the smallest # by the largest number. So 8 - 3 = 5
5 is the range for this set.

Supriya is writing a recursive function for the arithmetic sequence:

-11, -6, -1, 4,

She comes up with:

t(0)=-11

t(n)=t(n-1)+5

What domain should Supriya use for t so it generates the sequence?

A n≥0, is greater than or equal to, 0 where n is an integer

B n≥0, is greater than or equal to, 0 where n is any number

C n≥1, is greater than or equal to, 1 where n is an integer

D n≥1, is greater than or equal to, 1 where n is any number

PLZ i need this urgently

Answers

Answer:

A. n ≥ 0, is greater than or equal to, 0 where n is an integer

Step-by-step explanation:

Given AP with the sequence:

-11, -6, -1, 4, ...

and the recursive formula:

t(0)= -11 t(n) = t(n - 1) + 5

Supriya used n = 0 as the start point, the following points are 1, 2, 3, ... and so on

Correct answer choice is A

Answer:

A) n > 0 where n is an integer

Step-by-step explanation:

The ratio of tin to copper in an alloy is 6:9. How many kg of copper are there if the alloy has 32 kg of tin? Make a ratio table to solve.

Answers

Step-by-step explanation:

the three rows above you may draw as the ratio table

Please help me?! I don’t have a lot of time? Please I will give brainiest for the correct answer !

Answers

Answer:

It should be -3

Hope it helped i tried to help you ASAP

Step-by-step explanation:

A blogger had 400 subscribers to her blog in January. The number of subscribers has grown by a factor of 1.5 every month since then. Write a sequence to represent the number of subscribers in the 3 months that followed.

Answers

Answer:

[tex]600, 900, 1350[/tex]

Step-by-step explanation:

Given

[tex]a = 400[/tex] -- initial subscribers

[tex]b = 1.5[/tex] -- growth factor

Required

Determine the number of subscribers in the next three months

To do this, we make use of:

[tex]y = ab^x[/tex]

In this case:

x is the number of months

y is the number of subscribers

So:

when x = 1;

[tex]y = ab^x[/tex]

[tex]y = 400 * 1.5^1[/tex]

[tex]y = 400 * 1.5[/tex]

[tex]y = 600[/tex]

when x = 2

[tex]y = 400 * 1.5^2[/tex]

[tex]y = 400 * 2.25[/tex]

[tex]y = 900[/tex]

when x= 3

[tex]y = 400 * 1.5^3[/tex]

[tex]y = 400 * 3.375[/tex]

[tex]y = 1350[/tex]

So, the next three number of subscribers is:

[tex]600, 900, 1350[/tex]

WILL GIVE BRAINLIEST

Answers

Answer:

Step-by-step explanation:

Sonya makes a pattern of values for x and a pattern of values for y. Which
ordered pair continues the patterns and has an x-value of 6?

Answers

Answer: (6, 9)

Step-by-step explanation:

We have the pairs:

x y

0 0

2 3

4 6

These can be written as points (0, 0), (2, 3) and (4, 6)

This seems to be a linear relationship:

A linear relationship can be written as:

y = a*x + b

where a is the slope and b is the y-axis intercept.

For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:

a = (y2 - y1)/(x2 - x1).

In the cases where the point (0, 0) belongs to the graph, we have a proportional relationship, which is written as:

y = k*x

In this case we have that point, then this is a proportional relationship.

Now we could just replace the values of one of the points (not the (0,0) point) in the equation in order to find the value of x.

If we use the point (2, 3) we get:

y = 3

x = 2

then:

3 = k*2

3/2 = k

Then the relationship is:

y = (3/2)*x

Now we want to know the ordered pair such that x = 6, then we just eed to replace x by 6 in the above equation:

y = (3/2)*6 = 9

Then we have x = 6 and y = 9

The correct option is (6, 9)

There is an urn containing 10 marbles numbered 1 to 10. We sample 4 marbles without replacement. What is the probability that our sample contains the marbles labeled 1 and 2

Answers

Answer:

Step-by-step explanation:

The easiest way to do this is to assume you don't get a 1 or 2. You make your first draw from 8.

8 * 7 * 6 * 5 = 1680

The total number of ways of drawing 4 marbles is

10*9 * 8 * 7 = 5040

P(`(1 or 2) ) = 1680 / 5040 = 0.33333

The probability of getting a 1 or 2 in 4 throws = 1 - 0.3333 = 0.66667

Carly wants to fly to Canada, rent a car, and drive 568 miles to visit her sister in a truck that gets 21 miles per gallon. If gas costs $1.02 per liter, how much will the road trip cost her? There are 3.79 liters in 1 gallon. Round your answer to the nearest cent.

Answers

Answer:

$104.56

Step-by-step explanation:

The computation of the cost of the road trip as follows:

The total number of gallons required is

= 568 ÷ 21 miles

= 27.05 gallons.

Now

the cost of one gallon is

= 3.79 × 1.02

= $3.8658

So, the cost of the road trip is

= 27.05 × 3.8658

= $104.56

The table below shows the amount of money earned by two different workers over 5 consecutive days. Which equation best represents Fallon's earnings in terms of Donald's earnings? (How do you go from x to y?)

A. x = 7y
B. x = y + 7
C. y = x + 7
D. y = 7x

Answers

Answer:

Answer:C. y = x + 7

Step-by-step explanation:

everything on the left is 7 less then on the right

Two more than 11 times a number is equal to 24. What is the number.

Answers

Answer:

Step-by-step explanation:

Jordan ran around a circular track with a diameter of 70 m. How far did Jordan run?

Answers

uhhh pretty far lol

Answer:

Try your best! You can do it! I know you can! :) But sorry I can't help.

Step-by-step explanation:

Tail winds push the plane along much faster.
A plane traveling at the rate of 300 miles per
hour and having a tail wind of 40 miles per
hour actually makes a speed of 340 miles per
hour.
Ilow far is it from Newfoundland to Iceland,
if the trip was made in 4 hours and the plane
had an average speed of 500 miles per hour
with a tail wind of 30 miles per hour?

Answers

Answer:

2120 miles

Step-by-step explanation:

500 + 30 = 530 (Total miles per hour)

530 x 4 = 2120 (Average speed for 4 hours)

PLEASE HELP EASY GEOMETRY

Answers

9514 1404 393

Answer:

x = 4

Step-by-step explanation:

ΔAPQ ~ ΔACB with scale factor 1/2. That means ...

PQ = 1/2CB

x = 1/2(8)

x = 4

What is the diameter of a circle if its circumference is 12 feet?

Answers

Answer:

3.82165605096 Ft.

Explanation:

Circumference ÷ π = Diameter

12 ÷ 3.14 = Diameter

12 ÷ 3.14 = 3.82165605096

3.82165605096 Ft. Is The Diameter

Please help on this question!

Answers

Answer:

Step-by-step explanation:

what is the result of subtracting the secound equation from the first -4x-2y=-2 x-2y=9

Answers

Answer:

When we subtract the second equation x-2y=9 from the first equation 4x-2y=-2, we get the value of x = 11/5.

Therefore, the required result is:

x = 11/5

Step-by-step explanation:

Given

The first equation

[tex]-4x-2y=-2[/tex]

The second equation

[tex]x-2y=9[/tex]

Let us subtract the second equation from the first equation

[tex]-4x-2y=-2[/tex]

[tex]-[/tex]

[tex]\:\underline{x-2y=9}[/tex]

[tex]-4x - 2y - (x - 2y) = -2 - 9[/tex]

[tex]-4x -2y -x + 2y = -2-9[/tex]

[tex]-5x = -11[/tex]

divide both sides by -5

[tex]\frac{-5x}{-5}=\frac{-11}{-5}[/tex]

Simplify

[tex]x=\frac{11}{5}[/tex]

Thus, when we subtract the second equation x-2y=9 from the first equation 4x-2y=-2, we get the value of x = 11/5.

Therefore, the required result is:

x = 11/5

Please help in confused

Answers

Answer:

the first answer is correct and brainliest plsss (^_^)

Step-by-step explanation:

Answer: (-2,-1)

Explanation: When looking at graphs you need to look at the horizontal line / the one thats flat, most graphs are -10 to 10, the point in the middle is 0 if you go right you're going negative, left is positive, so C is 2 times left from the middle point so the first number is (-2,?); now the vertical line is kind of the same, but now going down will be a negative and going up will be a positive, C is going down one. So for C the coordinates are (-2,-1)

BRAINLIEST FOR WHOEVER GETS IT RIGHT

Answers

Answer:

13<y+x<32

Step-by-step explanation:

It depends.

If x and y are Whole Numbers, it would be 14<y+x<31.

If x and y are Real Numbers, including decimals and fractions, it would be 13<y+x<32

Since it doesn’t specify, it’s probably the latter.

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PLZ HELP!! NEED QUICKLY!!
Fill In The Blanks!!