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2 years ago

IM DIEING PLEASE HELP ME FOR BRAINLIEST

Mathematics

1 answer:

Helga [31]2 years ago

8 0

Answer:

Step-by-step explanation:

y= 9,800 x 2 ^x = 1,254,400

Just substitute x for 7

y= 9800 x 2 ^7 = 1,254,400

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Can someone help me with the question in the image please. if correct i will mark as brainliest

matrenka [14]

Answer:

I believe it is a=64; b=2 divided by 10 (I'm sorry if it's wrong I hope you pass)

5 0

3 years ago

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Estimate.<br> 4,754 dived by 1.9 =

irinina [24]

Answer:

2502.1

Step-by-step explanation:

4754/1.9

= 2,502.1

Hence the andwer is 2502.1

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2 years ago

Anne can make 6 head bands from 3/5 meters of cloth. Which expression shows the amount of cloth needed to make 1 headband? What

Aleks04 [339]

Answer:

3/5 divided by 6 = x

x = 1/10

Step-by-step explanation:

3/5 divided by 6 = x

3/5 / 6/1

3/5 * 1/6 = 3/30 = 1/10

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3 years ago

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Another 3rd grade question:

liraira [26]

To find the perimeter you would need to add 35+35+65+65=200. If the perimeter is 200, and he circles around it 4 times, 200*4=800, which is the answer.
Answer: The total amount of yards that Chris dribbles the ball is 800 yards.

7 0

2 years ago

A company claims that less than 10% of adults own a smart watch. You want to test this claim, and you find that in a random samp

Nezavi [6.7K]

Answer:

Test statistic is 0.67

Critical value is -2.33

Step-by-step explanation:

Consider the provided information.

The formula for testing a proportion is based on the z statistic.

$z=\frac{\hat p-p_0}{\sqrt{p_0\frac{1-p_0}{n}}}$

Were $\hat p$ is sample proportion.

$p_0$ hypothesized proportion and n is the smaple space,

Random sample of 100 adults, 12% say that they own a smart watch.

A company claims that less than 10% of adults own a smart watch.

Therefore, n = 100 $\hat p$ = 0.12 , $P_0$ = 0.10

$1 - P_0 = 1 - 0.10 = 0.90$

Substitute the respective values in the above formula.

$z=\frac{0.12-0.10}{\sqrt{0.10\frac{0.90}{100}}}$

$z\approx 0.67$

Hence, test statistic = 0.67

This is the left tailed test.

Now using the table the P value is:

P(z < 0.667) = 0.7476

P-value = 0.7476

$\alpha = 0.01$

Here, P-value > α therefore, we are fail to reject the null hypothesis.

$Z_{\alpha}= Z_{0.01} = -2.33$

Hence, Critical value is -2.33

7 0

3 years ago