3 years ago

BRANLIEST and point for best answer

Mathematics

1 answer:

I am Lyosha [343]3 years ago

6 0

None because it’s day light

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If you lift a 1 pound object 36 inches, how many joules of energy did you use?

Lady bird [3.3K]

the answer is 36 bc you divide the inches by the pound brainliest plzz god bless

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3 years ago

The formula for the volume of a cylinder is V=πr2h. where r is the radius of the cylinder, and h is the height of the cylinder.

Andrej [43]

6.62607004 × 10-34 m2 kg / s

3 0

3 years ago

Solve using order of operations (9 + 33 – 6 ) ÷ 6 – 32

marusya05 [52]

Answer:

-26

Step-by-step explanation:

9+33-6

calculate the sum of the positive numbers

42-6

subtract the numbers

36 divided by 6-32

6-32

-26

5 0

3 years ago

Read 2 more answers

Three boys share R2100 in ratio 3:5:7 calculate how much each boy will get

aleksandrvk [35]

The amount each boy receives from the R2100 is R420, R700 and R980 respectively

<h3>How to find ratio</h3>

Total amount = R2100

Ratio = 3 : 5 : 7

Total ratio = 3 + 5 + 7

= 15

First boy = 3/15 × 2100

= 0.2 × 2100

= R420

Second boy = 5/15 × 2100

= 0.33333333333333 × 2100

= R700

Third boy = 7/15 × 2100

= 0.46666666666666 × 2100

= R980

Learn more about ratio:

brainly.com/question/1781657

4 0

2 years ago

The paint used to make lines on roads must reflect enough light to be clearly visible at night. Let μ denote the true average re

tatuchka [14]

Answer:

We conclude that average reflectometer reading for a new type of paint is greater than 20

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 20

Sample size, n = 13

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 20\\H_A: \mu > 20$

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} } = 3.2$

Degree of freedom = n - 1 = 13 - 1 = 12

Now, we calculate the p-value with the help of standard table.

P-value = 0.004

Since, the p-value is less than the significance level, we fail to accept the null hypothesis and reject it.

Thus, there is enough evidence to support that average reflectometer reading for a new type of paint is greater than 20

5 0

3 years ago