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3 years ago

Can you please help?

Mathematics

1 answer:

Ivanshal [37]3 years ago

8 0

The answer is 1km every 4 minutes

Why? Because it took them 20 minutes to run a 5 km race and so I made a fraction. 5km/20mins and then I simplified to 1km/4mins. 1km every 4 mins.

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Divide. use either way to record the partial quotients .492÷3=

snow_lady [41]

0.492(divided by)3=0.164

3 0

3 years ago

Which point lies on the graph of x = -3<br> a. (3,2)<br> b. (3,2)<br> c. (-3,-2)<br> d. (-2,-3)

defon

Answer:

Step-by-step explanation:

using (x,y)

c has x as -3

6 0

3 years ago

Read 2 more answers

In explaining why their country is an attractive place to invest, the Minister of Commerce from Turgistan has argued that the po

boyakko [2]

Answer:

This data does not support the Minister of Commerce or Amnesty

International

Another issue that is important when evaluating this data is the judicial system of the Turgistan

Step-by-step explanation:

From the question we are told that

The sample size is n = 500

The number of political prisoners is k = 90

The level of significance is $\alpha = 0.05$

The null hypothesis is $H_o : p = \frac{1}{3} = 0.33$

The alternative hypothesis is $H_a : p \ne 0.33$

Generally the sample proportion is mathematically represented as

$\^ p = \frac{k}{n}$

=> $\^ p = \frac{90}{500}$

=> $\^ p = 0.18$

Generally the test statistics is mathematically represented as

$z = \frac{\^ p - p}{\sqrt{\frac{p (1- p)}{n} } }$

=> $z = \frac{0.18 - 0.40}{\sqrt{\frac{0.33 (1- 0.33)}{500} } }$

=> $z = -7.1429$

Generally the p-value is mathematically represented as

$p-value = 2 * P( Z > -7.1429)$

From the normally distribution table

The probability of $P( Z > -7.1429) = 0$

=> $p-value = 2 * 0$

=> $p-value = 0$

From the value obtained we see that the $p-value < \alpha$ hence the decision rule is

Reject the null hypothesis

The conclusion is

There is no sufficient evidence to conclude that this data does support the Minister of Commerce or Amnesty International

6 0

3 years ago

A manufacturer of shipping boxes has a box shaped like a cube. The side length is (5a + 4b). What is the volume of the box in t

SVETLANKA909090 [29]

Answer:

125a^3 + 300a^2b + 240ab^2 + 64b^3

Step-by-step explanation:

The volume of a cube is the cube of the side length.

V = s^3

Here, the side length of the cube is 5a + 4b, so we cube 5a + 4b.

V = (5a + 4b)^3

V = (5a + 4b)(5a + 4b)(5a + 4b)

V = (25a^2 + 20ab + 20ab + 16b^2)(5a + 4b)

V = (25a^2 + 40ab + 16b^2)(5a + 4b)

V = 125a^3 + 100a^2b + 200a^2b + 160ab^2 + 80ab^2 + 64b^3

V = 125a^3 + 300a^2b + 240ab^2 + 64b^3

8 0

2 years ago

Jackson attacked the bank of the United States because

Ostrovityanka [42]

Answer:

President Andrew Jackson attacked the Bank of the United States because It was an organization of the Easterners.

Step-by-step explanation:

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2 years ago