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777dan777 [17]
3 years ago
9

Kay was walking along the bridge above the river. She accidentally lost her grip on her camera when she was trying to get it out

to photograph massive birds nest in the trees.The height of the camera above the water can be modeled by the equation y=-16t^2+400, where t represents the seconds after the camera is dropped. How long will it take before Kay sees the splash from the camera hitting the water.
Mathematics
2 answers:
nikklg [1K]3 years ago
8 0

Answer:

5 seconds it will hit the water.

Step-by-step explanation:

y=-16t²+400

add -16t² to both sides

-16t²=-400

divide both sides by 16

t²=-25

t=√25

t=5

devlian [24]3 years ago
3 0

Answer:

t=5

Step-by-step explanation:

t=√25=t=5

<h2>  ■   ■</h2><h2>I_____I</h2>
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What is the slope of this equation = -0.3x + 3.7.​
meriva

Answer:

- 0.3

Step-by-step explanation:

Slope Intercept Form:

y = mx + b

Slope:

m = slope

Equation:

- 0.3x + 3.7

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Hope This Helps :)

5 0
3 years ago
A consumer advocacy group wants to determine whether there is a difference between the proportions of the two leading automobile
podryga [215]

Answer:

The answer is "0.3206".

Step-by-step explanation:

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Testing statistic:

z = \frac{(\hat{p_1}- \hat{p_2})}{\sqrt{(\hat{p} \times (1-\hat{p}) \times (\frac{1}{N_1} + \frac{1}{N_2}))}}

=\frac{(0.1325-0.156)}{\sqrt{(0.1456\times (1-0.1456)\times (\frac{1}{400} + \frac{1}{500}))}}\\\\ = -0.99

Calculating the P-value Approach

\text{P-value}= 0.3206

7 0
2 years ago
Use the picture for the question and the answer choices:)
soldi70 [24.7K]

Answer:

the answer is A. 3 and 8

Step-by-step explanation:

if you search up the definition of coefficient this is what you get:

co·ef·fi·cient

/ˌkōəˈfiSHənt/Submit

noun

plural noun: coefficients

1.

MATHEMATICS

a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g., 4 in 4x y).

so the answer would be the 3 and the 8

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3 years ago
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Answer:

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cost

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8. The measures of two angles in an isosceles triangle are shown in the diagram.
mote1985 [20]

Answer:

A

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