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2 years ago

10

A body of mass 80kg was lifted vertically through a distance of 5.0 metres. Calculate the work done on the body. ( Acceleration

due to gravity g=10ms²)

2 answers:

tamaranim1 [39]2 years ago

4 0

Answer:

80×5×10=4000J

so therefore, the work done on the body was 4000J

Murljashka [212]2 years ago

3 0

Answer:

4000N

Step-by-step explanation:

Check the attachment

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The Graduate Management Admission Test (GMAT) is taken by individuals interested in pursuing graduate management education. GMAT

Anna71 [15]

Answer:

$H_{0}: \mu = 500\text{ GMAT score}\\H_A: \mu < 500\text{ GMAT score}$

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 550

Sample size, n = 250

Alpha, α = 0.05

Population standard deviation, σ = 120

The mean GMAT score for all test takers is 550.

The researcher believes that the mean scores in the Philippines who are interested in pursuing graduate management education will be less than 550.

We design the null and the alternate hypothesis

in the following manner:

$H_{0}: \mu = 500\text{ GMAT score}\\H_A: \mu < 500\text{ GMAT score}$

The null hypothesis states that the sample is taken from the population and have a mean score of 550, while the alternate hypothesis states the researcher's claim that the sample of Philippines does not belong to the population and have mean score less than 550.

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2 years ago

$16.46 is what percent of $634.40?

tia_tia [17]

Answer:

104.42224

Step-by-step explanation:

16.46% of 634.40 = 0.1646 × 634.40 = 104.42224

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1 year ago

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Consider the diagram and the paragraph proof below. Given: Right △ABC as shown where CD is an altitude of the triangle Prove: a2

gladu [14]

The answer is B.

This is because since f + e = c,
then a² + b² = c(f + e)
a² + b² = c(c)
a² + b² = c²

This is the correct answer

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2 years ago

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Dwayne buys ingredients to make a cake. He buys 112 pounds of flour, 12 ounces of coconut, and 114 pounds of sugar. What is the

Anastaziya [24]

Answer:

The only correct options are A, B and E.

Step-by-step explanation:

He buys $1\frac{1}{2}$ pounds of flour, 12 ounces of coconut, and $1\frac{1}{4}$ pounds of sugar.

We will add these together, but before that, we convert the 12 ounces to pounds, so that all the units are the same:

1 ounce = 0.0625 pounds

12 ounces = 12 * 0.0625 = $\frac{3}{4}$ pounds

He buys $\frac{3}{4}$ pounds of coconut.

Adding all of them together yields:

$1\frac{1}{2}$ + $\frac{3}{4}$ + $1\frac{1}{4}$ = $3\frac{1}{2}$ pounds

Let us also convert to ounces:

$3\frac{1}{2}$ / 0.0625 = 56 ounces

Let us also convert 1/2 pound to ounces:

1/2 / 0.0625 = 8 ounces

Hence, the total weight of ingredients that Dwayne bought is $3\frac{1}{2}$ pounds or 56 ounces or 3 pounds 8 ounces

Hence, options A, B and E are correct.

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2 years ago

The cost of 9 scarves is $65.25. What is the unit price?<br><br> The unit price is $____ per scarf.

Strike441 [17]

Answer:

7.25 each or 7.00 if rounded

Step-by-step explanation:

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