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3 years ago

(GIVING BRAINLIEST!!!)

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

6 0

Answer:

A) 81 minutes

Step-by-step explanation:

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5x^2 + 19x + 12=0<br> how do i figure this out

zlopas [31]

Answer:

x=−4/5 or x=−3

Step-by-step explanation:

Step 1: Factor left side of equation.

(5x+4)(x+3)=0

Step 2: Set factors equal to 0.

5x+4=0 or x+3=0

x=−4/5 or x=−3

3 0

3 years ago

8th grade - geometry

Cloud [144]

What are you trying to prove here? I know when step will be the use of the Transitive Property. If a=b, and b=c, then a=c.

8 0

3 years ago

AHHHHHHHHHH I DON'T LIKE MATH!!!!!!!!!!!!!!!!

REY [17]

Answer:

The answer is 5 1/16

Step-by-step explanation:

3/2 x 3/2 x 3/2 x 3/2

3/2 x 3/2 = 9/4

9/4 x 3/2 = 27/8

27/6 x 3/2 =81/16

Turn 81/16 into a mixed fraction and it’s 5 1/16

Therefore, the answer is 5 1/16

6 0

3 years ago

What is the average rate of change for h(t) between t=0 and t=2

nordsb [41]

Part a: Option D 18 feet per second

Part b: increasing

Solution:

Height $h(t)=-16 t^{2}+50 t+3$

Part a: To find the average rate of change for h(t) between t = 0 and t = 2.

Substitute t = 0 in h(t).

$h(0)=-16 (0)^{2}+50 (0)+3$

h(0) = 3

Substitute t = 2 in h(t).

$h(2)=-16 (2)^{2}+50 (2)+3$

h(2) = 39

Average rate of change formula:

$$=\frac{h(b)-h(a)}{b-a}$

Here, a = 0 and b = 2.

$$=\frac{h(2)-h(0)}{2-0}$

$$=\frac{39-3}{2}$

$$=\frac{36}{2}$

= 18

Average rate of change = 18 feet per second

Option D is the correct answer.

Part b:

This means height of the ball is increasing for 0 < x < 2.

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3 years ago

-5/4x+2/5=-13/30. What is the solution to ths equation

uysha [10]

2/3 is the answer to this problem.

8 0

3 years ago