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3 years ago

Can someone tell me the exact answer to this question pls and thank you I will give brainliest

Mathematics

1 answer:

lutik1710 [3]3 years ago

7 0

(- 1, 2 ) and ( -1, 0) have the same x-value

for the graph to represent a function there must be only one y- value for each x- coordinate. Here there are 2 so this is not a function

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NEED HELP

Sladkaya [172]

Answer:

2.60

Step-by-step explanation:

z-score is the difference between the score and mean, divided by the standard deviation.

$z = \frac{x - \mu}{\sigma}$

$z = \frac{91-77.5}{5.2} = \frac{13.5}{5.2} \approx 2.596$

So 2.6 is an answer close enough.

5 0

3 years ago

Could someone help me with this?

hodyreva [135]

Step-by-step explanation:

Identity the variable:

Initial Velocity is 35.

Initial Height is 204

Final Height is 0.

What looking for the time.

So we have

$0 = - 16 {t}^{2} + (35)t + 204$

Use Quadratic Formula,

$- b± \frac{ \sqrt{b {}^{2} - 4ac} }{2a}$

A is -16, B is 35 , C is 204.

So we have

$- 35± \frac{ \sqrt{ {35}^{2} - 4( - 16)(204) } }{ - 32}$

$- 35± \frac{ \sqrt{1225 + 2240} }{ - 32}$

$- 35± \frac{ \sqrt{3465} }{ - 32}$

${35} ± \frac{ \sqrt{3465} }{ - 32}$

The positve solution is

$4.83$

So the answer is 4.83 seconds

5 0

2 years ago

Can I plz get help I don’t understand

Rzqust [24]

One clock of any type costs $3.20. a clocks cost 3.2a. w clocks cost 3.2w.

Add 3.2a to 3.2w to find the total cost.

T = 3.2a + 3.2w

T = 3.2(a + w)

Both expressions above are correct answers.

6 0

4 years ago

A cube has a surface area of 9,600 square meters. Find the volume of the cube.

valina [46]

The answer is 64,000. Hope this helped!

7 0

4 years ago

Read 2 more answers

Advanced Mathematical Decision Making......

zhuklara [117]

Answer:

MB = 239627

MA = 239327

I don’t know the answer to the radius question but I know it’s not 247936 miles or 3963 miles. Pls let me know if you figure it out ! :) - gigi

Step-by-step explanation: we have the same practice worksheet & amdm class.

3 0

3 years ago