All categories

3 years ago

PLS HELP ASAP ILL GIVE BRAINLIEST NO BOT LINK PLS

Mathematics

2 answers:

gogolik [260]3 years ago

8 0

The square of the number twenty taken

Olegator [25]3 years ago

6 0

the square of a number taken from twenty

You might be interested in

A cube has an edge length of 6 cm. It is to be enlarged by a scale factor of 4. What is the surface area ratio of the enlarged c

Andru [333]

The surface area ratio of the enlarged cube to the original cube is 16:1, or as a fraction, 16/1.

If the scale factor is 4, the edge length of the enlarged cube is 24 cm.
(6 × 4 = 24)

To find the surface area of a cube, you can use the formula $SA=6a^2$ , where a is equal to the edge length of the cube.

First, I will solve for the surface area of the original cube.

SA = 6 × 6²
SA = 6 × 36
SA = 216

Next, I will solve for the surface area of the enlarged cube.

SA = 6 × 24²
SA = 6 × 576
SA = 3456

To find the ratio, we divide the original cube's surface area from the enlarged cube's surface area.

3456 ÷ 216 = 16

The surface area ratio of the enlarged cube to the original cube is 16:1, or as a fraction, 16/1.

8 0

4 years ago

An appliance manufacturer claims to have developed a compact microwave oven that consumes a mean of no more than 250 W. From pre

melamori03 [73]

Answer:

We conclude that a compact microwave oven consumes a mean of more than 250 W.

Step-by-step explanation:

We are given that an appliance manufacturer claims to have developed a compact microwave oven that consumes a mean of no more than 250 W with a population standard deviation of 15 W.

They take a sample of 20 microwave ovens and find that they consume a mean of 257.3 W.

Let $\mu$ = mean power consumption for microwave ovens.

So, Null Hypothesis, $H_0$ : $\mu$ $\leq$ 250 W {means that a compact microwave oven consumes a mean of no more than 250 W}

Alternate Hypothesis, $H_A$ : $\mu$ > 250 W {means that a compact microwave oven consumes a mean of more than 250 W}

The test statistics that would be used here One-sample z test statistics as we know about the population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\bar X$ = sample mean power consumption for ovens = 257.3 W

σ = population standard deviation = 15 W

n = sample of microwave ovens = 20

So, the test statistics = $\frac{257.3-250}{\frac{15}{\sqrt{20} } }$

= 2.176

The value of z test statistics is 2.176.

Now, at 0.05 significance level the z table gives critical value of 1.645 for right-tailed test.

Since our test statistic is more than the critical value of t as 2.176 > 1.645, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that a compact microwave oven consumes a mean of more than 250 W.

7 0

3 years ago

. Write the original equation, n = 0.1515... underneath your equation from question 3. Then subtract the equations. Show your wo

solong [7]

Answer:

The metal in ya lungs

Step-by-step explanation:

Do not smoke/vape it is bad for your lungs

5 0

2 years ago

What numbers are a distance of 1/2 unit from 3/5 on a number line? Select the locations on the number line to plot the points.

Allushta [10]

The numbers that are a distance of 1/2 unit from 3/5 on a number line are the numbers that are 1/2 units to the right and to the left of 3/5 on the number line.

The numbers are given by 3/5 - 1/2 and 3/5 + 1/2.

The numbers are 1/10 and 1 1/10

3 0

3 years ago

Read 2 more answers

Find the inverse function of h(x) = -2/3 x + 6.

Tatiana [17]

Hello,
H^(-1)(x)=-3/2 x+9
Answer A
Indeed:

y=-2/3x+6-->x=-2/3 y +6 ==>3x=-2y+18==>2y=-3x+18==>y=-3/2 x +9

7 0

4 years ago