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alexgriva [62]
2 years ago
6

This is khan academy and i need it fast thx

Mathematics
1 answer:
11111nata11111 [884]2 years ago
4 0

Answer:

C

Step-by-step explanation:

The angles are supplementary because all the angles add up to 180 and they form a straight line together.

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How many tiles would be used to make figure five
gizmo_the_mogwai [7]
Attach a pic please
that would help



4 0
2 years ago
What is the y cordinate of the solution<br>solve 8 and 9<br>​
Flauer [41]

Answer:

8) The y coordinate of the solution: 4

9) Average of change from x = 2 to x = 4: 11

Step-by-step explanation:

8)

y = 2x + 2

y = x^2 + 3

So

x^2 + 3 = 2x + 2

x^2 - 2x + 3 - 2 = 0

x^2 - 2x + 1 = 0

(x - 1)^2 = 0

x - 1 = 0

x = 1

Plug in x = 1 into either those 2 equations to find y

y = 2(1) + 2 = 4

or

y = (1)^2 +  3 = 1 + 3 = 4

Answer:

The y coordinate of the solution is 4

9)

p(x) = x^2 + 5x - 2

p(2) = 2^2 + 5(2) - 2 = 4 + 10 - 2 = 12

p(4) = 4^2 + 5(4) - 2 = 16 + 20 - 2 = 34

Average of change from x = 2 to x = 4:

[p(4) - p(2)]/[(x(4) - x(2)] = (34 - 12)/(4-2) = 22 /2 = 11

Answer:

Average of change from x = 2 to x = 4 :11

4 0
3 years ago
Find the value of c that completes the square
Kitty [74]

Answer:

c = 64

Step-by-step explanation:

Given

x² - 16x + c

To complete the square

add ( half the coefficient of the x- term )² to x² - 16x

x² + 2(- 8)x + 64

= (x - 8)²

Thus

x² - 16x + 64 = (x - 8)² ← a perfect square

with c = 64

8 0
2 years ago
When pay rate is $14/hr and an employee has a 15 minutes added to an hour, how much?
hram777 [196]

Answer:

$3.50

Step-by-step explanation:

15 min is 1/4 hr.

Working an add'l 1/4 hr brings the employee additional pay:

($14/hr)(1/4  hr)  = $7/2, or $3.50

6 0
3 years ago
Solve y⁄5 + 8 = 13 for y. A. 16 B. 25 C. 105 D. 1
creativ13 [48]

Answer:

B

Step-by-step explanation:

given

\frac{y}{5} + 8 = 13

Isolate \frac{y}{5} by subtracting 8 from both sides

\frac{y}{5} = 5 ( multiply both sides by 5 )

y = 25 → B

3 0
3 years ago
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