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4 years ago

I need some help on this question

1 answer:

3 0

All you'd have to do is multiply 20 cm2 by 5 cm because volume is cm3, so if the base is already giving you cm2, you'll need the last measure which is height.

The answer would be 100 cm3

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Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 3.2 × 105

Oliga [24]

The hours it would take to type 3.2 x 10^5 words is 1.33 x 10^2 hours.

<h3>How many hours would it take to type 3.2 x 10^5 words?</h3>

Standard form is used in expressing large numbers in smaller numbers. It is used to transform large numbers into smaller number.

In order to write a number in standard form, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10.

For example: 1 x 10² is equivalent to 100

The first step is to determine how many words he can type in 1 hour : 40 x 60 = 2400 words = 2.4 x 10³

The second step is to divide 3.2 x 10^5 words by 2.4 x 10³

3.2 x 10^5 ÷ 2.4 x 10³ = 1.33 x 10^(5 - 3)

1.33 x 10^2 hours

To learn more about standard form, please check: brainly.com/question/25334755

#SPJ1

3 0

2 years ago

For each of the following scenarios state whether H0 should be rejected or not. State any assumptions that you make beyond the i

scoundrel [369]

Answer:

a) $H_0 :\mu = 4\\ H_1 : \mu \neq 4$ , n = 15 , X=3.4 , S=1.5 , α = .05

Formula : $t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{3.4-4}{\frac{1.5}{\sqrt{15}}}$

$t =-1.549$

p- value = 0.607(using calculator)

α = .05

p- value > α

So, we failed to reject null hypothesis

b) $H_0 :\mu = 21\\ H_1 : \mu < 21$ , n =75 , X=20.12 , S=2.1 , α = .10

Formula : $t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{20.12-21}{\frac{2.1}{\sqrt{75}}}$

$t =-3.6290$

p- value = 0.000412(using calculator)

α = .1

p- value< α

So, we reject null hypothesis

Assume α = .05

p-value = 0.061.

p- value > α

So, we failed to reject null hypothesis

7 0

3 years ago

The table shows the ratio of cups of white flower to cups in millie’s pancake recipe

mezya [45]

Answer:

The selected graph is correct

Step-by-step explanation:

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3 years ago

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A football is punted and follows a path from the line of scrimmage similar to the quadratic equation: y= -¹⁄₂₀ (x-25)² + 30 wher

cluponka [151]

Do it on a Calculator just type it in

8 0

3 years ago

What is happening to this graph when the x values are between -1 and 1

Amiraneli [1.4K]

It is decreasing, since the y-value is going down.

3 0

3 years ago

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