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2 years ago

Solve (−7) ⋅ (−4) A -28 B -11 C 28 D 11

Mathematics

2 answers:

tensa zangetsu [6.8K]2 years ago

8 0

Answer:

It would be C

Step-by-step explanation:

A negative times a negative is a positive, and 7 x 4 is 28

attashe74 [19]2 years ago

7 0

Answer: 28 positive C

Step-by-step explanation:

it C

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Use the relationship between the angles in the figure to answer the question. Which equation can be used to find the value of x?

Kaylis [27]

The sum of all the angles made by a straight line is 180°. Then the value of x is 61°.

<h3>What is an angle?</h3>

Angle is the space between the line or the surface that meets. And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.

The angles are shown on the diagram.

The angles are 52° and 67°. And let the other angle be x.

We know that the sum of all the angles made by a straight line is 180°.

Then we have

x + 52° + 67° = 180°

On simplifying, we have the value of x.

x = 61°

Thus, the value of x is 61°.

More about the angles link is given below.

brainly.com/question/15767203

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2 years ago

Can someone help simplify?: -8x^3y2(2x^4y^4)

Kisachek [45]

So the rule with multiplying exponents of the same base is to add the exponents together. Applying this rule here would look like this:

$-8x^3y^2*2x^4y^4=(-8*2)x^{3+4}y^{2+4}=-16x^7y^6$

In short, your simplified expression is going to be -16x^7y^6.

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3 years ago

Is 11/20 greater or less than 1/2

inn [45]

Greater. This is because 1/2 x 10/10 = 10/20. 11>10

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3 years ago

Read 2 more answers

A farmer wants to construct a rectangular pigpen so only 3 sides of the pen will need to be fenced. If the farmer has 400 ft of

Fofino [41]

Answer:

The answer is " $\bold{100\ ft \times 200\ ft}$ "

Step-by-step explanation:

A = area of the pigpen

x = its perpendicular length of the sides of the stone wall

Maximize function:

$\to A = x (400-2x)\\\\Where\ \ 0$

So, the size of pigpen is = 100 ft by 200 ft that is (perpendicular and parallel to wall), that's why the answer is " $\bold{100\ ft \times 200\ ft}$ "

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2 years ago

2. Consider the following dot plot and answer the following questions : A. Find the measures of central tendency Construct the B

zubka84 [21]

The measures of central tendency for this data set are as follows:

Mean = 3.55.
Median = 3.5.
Mode = 3.

<h3>How to calculate measures of central tendency?</h3>

In Mathematics, there are three (3) main measures of central tendency and these include the following:

Mean

Median

Mode

For the mean, we have:

Mathematically, the mean for this data set would be calculated by using this formula:

Mean = [F(x)]/n

For the total number of data, we have:

F(x) = 0 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 3 + 4 + 4 + 4 + 5 + 5 + 5 + 6 + 6 + 6 + 7

F(x) = 71

Substituting the parameters into the formula, we have:

Mean = [F(x)]/n

Mean = 71/20

Mean = 3.55.

For the median, we have:

First of all, we would order the data from lowest to highest and then determine the median as follows:

Data = {0, 1, 1, 1, 2, 2, 3, 3, 3,} 3, 4, {4, 4, 5, 5, 5, 6, 6, 6, 7}

Median = {3 + 4}/2

Median = 7/2

Median = 3.5.

<h3>How to calculate the mode?</h3>

A mode refers to the most frequently occurring number in a data set. Thus, the mode for this data set is equal to 3.

In conclusion, a box plot of the measures of central tendency for this data set is shown in the image attached below.

Read more on mean here: brainly.com/question/9550536

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1 year ago