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3 years ago

14 + 4x=2-28 What would “x” equal?

Mathematics

1 answer:

cupoosta [38]3 years ago

8 0

Step-by-step explanation and the Answer:

$14+4x=2-28$

Combine Like Terms. Now the equation looks like this: $14+4x=-26$

Then Subtract $14$ from both sides. Then the equation looks like this after u subtract $14$ from both sides: $4x=-40$

Now divide $4$ from both sides. Now the equation looks like this after u Divide $4$ from both sides: $x=-10$

So therefore the answer is $x=-10$ .

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What is the area of the composite figure?

lana [24]

Hello! :)

$\large\boxed{A = 32.5cm^{2}}$

We can use the following area to solve for the area of the trapezoid pictured:

$A = \frac{1}{2}(b_{1} + b_{2})h$

Where:

h = height

b1 = bottom base

b2 = top base

Plug in the given values:

$A = \frac{1}{2}(9 + 4)(5)$

Simplify:

$A = \frac{1}{2}(65)\\\\A = 32.5 cm^{2}$

8 0

3 years ago

PLEASE HELP ME!! Kenji is traveling in Europe and renting a car. He is used to thinking of gasoline amounts in gallons, but in E

Contact [7]

Answer:

10.30721

Step-by-step explanation:

This requires conversion, this is Liters to Gallons.

1 LITER= 0.26417205

so knowing this info. we just plug in

39 L = 10.30721 gallons

Hope this helped! :)

7 0

3 years ago

Please help fasttttttt

lord [1]

Answer:

40 or 50 i cant see, is it closer in size to L or I

Step-by-step explanation:

3 0

3 years ago

g A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam. We ar

BaLLatris [955]

Answer:

The test statistic is $z = 1.25$

Step-by-step explanation:

We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%.

At the null hypothesis, we test if the proportion is 80%, that is:

$H_0: p = 0.8$

At the alternate hypothesis, we test if the proportion is more than 80%, that is:

$H_a: p > 0.8$

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

80% is tested at the null hypothesis:

This means that $\mu = 0.8, \sigma = \sqrt{0.2*0.8} = 0.4$

A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam.

This means that $n = 100, X = \frac{85}{100} = 0.85$

The test statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{0.85 - 0.8}{\frac{0.4}{\sqrt{10}}}$

$z = 1.25$

The test statistic is $z = 1.25$

4 0

3 years ago

Find x if eg is a median of triangle DEF.. 5x-17 & 3x+1

GREYUIT [131]

If eg is the median, that means
5x-17=3x+12x=18x=9

4 0

3 years ago