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2 years ago

Which model represents the factors of 4x2 – 9?

Mathematics

2 answers:

klasskru [66]2 years ago

6 0

Answer:

-1

Step-by-step explanation:

BODMAS

4x2=8

8-9=(impossible)

9-8= -1

NB:8 was smaller to 9 so we switched but the answer becomes nehative

kakasveta [241]2 years ago

3 0

The model represents the factor -1

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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

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Anvisha [2.4K]

Answer:

Step-by-step explanation:

what number is 28% of 25

Is means equals and of means multiply

N = 28% of 25

Change to decimal form

N = .28* 25

N =7

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3 years ago

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Step-by-step explanation:

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Masja [62]

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