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3 years ago

The sum of a number and 20 is no more than the sum of the square of the number and 9.

Mathematics

1 answer:

aniked [119]3 years ago

5 0

A is the correct answer.

break down the word problem.

You also have to recognize key words which figure into mathematical symbols.

ex. sum of a number and 20 is x+20

square of the number and 9 is (x+9)^2

please vote my answer brainliest! thanks.

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Please help me with all these questions . I really appreciate it but if you don't how to do it please comment don't answer the q

frozen [14]

For number 1, add the sides of the triangle. They are all given. The answer is 19.

For number 2, you use the formula for circumference, 2 times pi times radius. The answer is 43.96.

For number 3, I assume that 5 is half of one side. You would double 5 to get ten and multiply it by four, since there are four sides in a square. The answer is 40.

For number 4, you would multiply 5 times pi, but don't solve it. ( since the directions are to leave the answer in terms of pi) The answer is 5 pi.

For number 5, add all the sides together like number 1. The answer is 18.

8 0

3 years ago

Read 2 more answers

A hotel is building a large new aquarium for their lobby. They know the length from the top corner to the opposite bottom corner

nignag [31]

Answer:

3 ft, 144 ft³

Step-by-step explanation:

Find the width as below

l² + w² + h² = d², where l- length, w- width, h- height, d- the distance between top and bottom corners

Substitute the values and solve for w

4² + w² + 12² = 13²
w² + 160 = 169
w² = 9
w = 3 feet

Now find the volume

V = lwh
V = 4*3*12 = 144 ft³

6 0

2 years ago

Need help with 2,3,4

Harman [31]

Answers:

In these exercices are ilustrated the representations of the fractions

2) Firstly, we have 3 equal segments, each one representing $\frac{1}{4}$ , hence:

$\frac{3}{4}$ is 3 copies of $\frac{1}{4}$

Let's prove it, taking into account we are adding fractions with the same denominator:

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

There are 4 equal parts that make a whole

Four copies of $\frac{1}{4}$ make $\frac{4}{4}$ or 1 whole

$\frac{1}{4}+\frac{1}{4}+\frac{1}{4}+\frac{1}{4}=\frac{4}{4}=1$

3) Here we have a line divided into four segments, each one of $\frac{1}{5}$ . Hence:

This is $\frac{4}{5}$ of a line. $\frac{4}{5}$ is 4 lengths of $\frac{1}{5}$

$\frac{1}{5}+\frac{1}{5}+\frac{1}{5}+\frac{1}{5}=\frac{4}{5}$

If we draw one more $\frac{1}{5}$ we will have $\frac{5}{5}$ or 1 whole.

Then:

5 lengths of $\frac{1}{5}$ make $\frac{5}{5}$ or 1 whole.

4) In this part the answer is in the attached image. If we have two equal segments, each one of $\frac{1}{3}$ we will have as a result $\frac{2}{3}$ .

If we add another $\frac{1}{3}$ segment, we will have three segments of $\frac{1}{3}$ , having as a result $\frac{3}{3}=1$

3 0

3 years ago

The table shows the participation in a school’s debate club during the last four years.

Dominik [7]

Incomplete question, but use the following example as an illustration.

Step-by-step explanation:

Say one person had $200 in a savings account last month and now has $225. That's an increase. The problem is to find the percent of increase in money.

Read more on Brainly.com - brainly.com/question/14791979#readmore

7 0

3 years ago

Write the number that makes each number sentence true

andrey2020 [161]

Answer: ummmmmmm

Step-by-step explanation: teeeeeheeee

idk

GIBE MEH A TANKS

6 0

3 years ago

Read 2 more answers