Mathematics Middle School

Place brackets in the statements to make them true:

7-2² +3=28

2+2+2² =36

Answers

Answer 1
(7-2)^2+3=28

Check:
5^2+3
28
True

(2+2+2)^2=36

Check:
6^2
36
True

Related Questions

a garden hose faucet is able to fill a gallon container in 20 seconds. A homeowner accidentally left his hose on for a full day. How many gallons per day can a hose be release?

Answers

The hose can release 72 gallons of water in 24 hours

Answer:

The answer is 4320 gallons.

Step-by-step explanation:

A garden hose faucet is able to fill a gallon container in 20 seconds.

A homeowner accidentally left his hose on for a full day.

In 24 hours, there are = 86400 seconds

The number of gallons per day can a hose be release = [tex]\frac{86400}{20}=4320[/tex] gallons

Hence, the answer is 4320 gallons.

Classify each pair of numbered angles.

Drag and drop the descriptions into the boxes to correctly classify each pair of numbered angles. Each description may be used more than once.

Adjacent

Linear Pair

Vertical

None

Answers

Adjacent angles are angles with a common side and vertex, linear pairs are adjacent angles that are supplementary, and vertical angles are angles made by the same two lines but on opposite sides.

For the first one, 5 and 6 clearly do not share a side but they are made up by the same 2 lines and are opposite of each other, making them vertical.

For the next one, since the angles only share 1 line (and not a side) they can't be any of the above. 

The paired numbered angles can be classified as follows:

<5 and <6 are vertical angles

<1 and <2 are none (not vertical, not adjacent, not a linear pair)

Recall the following:

Adjacent angles share a corner and a common side, but do not overlap.Linear pairs are two angles that are adjacent to each other along a straight line.Vertical angles share a common vertex but are not adjacent to each other.

Therefore, from the above stated facts, we can conclude that:

<5 and <6 are vertical angles

<1 and <2 are none (not vertical, not adjacent, not a linear pair)

Learn more here:

https://brainly.com/question/7870852

the function s(v)=3√v describes the side length, in units, of a cube with a volume of V cubic units. jason wants to build a cube with a minimum of 64 cubic centimeters

what is a reasonable range for s, the side length, in centimeters, of Jason's cube?

a. s > 0
b. s >_4
c. s >_ 8
d. s>_ 16

Answers

s(v)=∛v
if v = 64 then
s(v) ∛64 = 4

answer
b. s >= 4

Answer:

Step-by-step explanation:

alright lets get started.

The side of cube is given by the function

[tex]s(v)=\sqrt[3]{v}[/tex]

If, Jason wants to build a cube with the minimum volume 64 cubic centimeters.

Plugging the value of volume in above function

[tex]s=\sqrt[3]{64}[/tex]

Taking the cubic root of 64

[tex]s=4[/tex]      :    

So, side s should be atleast or more than 4 to have the volume as 64,

[tex]s\geq4[/tex]   :   answer    option b

Hope it will help. :)

Yolanda is buying supplies for school.She buys n packages of pencils at 1.40 per package and m pads of paper at 1.20 each.what does each term in the expression 1.4n+1.2m represent? What does the entire expression represent

Answers

1.4n + 1.2m

1.4n.....the n represents the number of packs of pencils bought.....and each pack of pencils cost 1.4 (which is the same as 1.40)

1.2m...the m represents the number of pads of paper bought...and each pad of paper cost 1.2 (which is the same as 1.20)

the entire expression represents the total cost spent on buying n packs of pencils and m pads of paper

pi over 7 = a over 4. a=?

Answers

I hope this helps you.

The equivalent value of the expression π / 7 = a/4 is a = ( 4π/7 )

Given data:

To find the value of a when given π/7 = a/4, cross-multiplication is done and a is solved as:

When two fractions are equal, to eliminate the denominators, the cross multiplication is executed and the unknown variable is solved.

Cross-multiplying the equation:

π * 4 = 7 * a

Simplifying the equation:

4π = 7a

To solve for a, divide both sides of the equation by 7:

a = (4π) / 7

Hence, the solution of a = ( 4π/7 )

To learn more about fractions click :

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A researcher wished to gauge public opinion on gun-control. He randomly selected 1000 people from registered voters and asked them the following question: “ Do you believe that gun control laws which restrict the ability of Americans to protect their families should be eliminated?” Identify the abuse of statistics and identify ways the researchers methods could be improved.

Answers

The question is clearly one sided - the researcher clearly states that it prevents the ability for families to protect themselves, but doesn't state any negatives to guns in the question.

Answer:

Its a Loaded Question

Step-by-step explanation:

They need to re-word the question. For example, Do you believe gun control laws should eliminated?

the average adult horse needs 2/5 bale of hay each day to me dietary recommends. Oh horse farm has 44 bales of hay. How many horses can be found in one day with 44 bales of hay?

Answers

110 horses can be found in one day with 44 bales of hay.  If each horse needs 2/5 bales of hay each day, just convert 2/5 into a decimal (0.4) and divide 44 by 0.4 to get 110.  (That's a lot of horses!)

write an expression of the product of 6 and Q

Answers

6q= (7q+2q)\3 x 2
6q= 9q\3 x 2
6q= 3q x 2
6q=6q

Triangle JKL is isosceles. The measure of angle J is 72° and the measure of angle K is 36°. Which statement describes angle L?

Answers

This can have two scenarios: Angle J is the vertex and angle K is one of the base angles, or angle K is the vertex and angle J is one of the base angles. We can check this easily by seeing if they add up to 180.

Checking if the base angle is 72, we see that it fits, because 36+2(72)=180. Thus, the two base angles are angles J and L. Angle L is 72°.

Hope this helped!

Answer:

b.) Angle L is a base angle and measures 72°.

Step-by-step explanation:

Does anyone get this question plz anybthat does help me idk what to do thank you

Answers

3x+8+4x+10=8x
7x+18=8x
18=x

Plug the value of x in
BC= 8(18)
BC= 144

Final answer: 144

Determine the slope between the points (-3, 0) and (0, 5)

Answers

The slope is approximately 1.7x+5

write each as a numerical expression. subtract the product of 5 and 8 from 50

Answers

50 - (5 x 8)

50 - (40) = 10

hope this helps

Find the​ mean, variance, and standard deviation of the binomial distribution with the given values of n and p.
n=129
p=0.79
The​ mean is ______
. ​(Round to the nearest tenth as​ needed.)
The​ variance,
σ^2 is ______
​(Round to the nearest tenth as​ needed.)
The standard​ deviation, ______

Answers

The Binomial distribution has specific formulas for mean, variance, and standard deviation:

mean=n*p
variance=n*p*(1-p)
std. deviation=sqrt(variance)

Please help: Which conversion factors are used to multiply to 12 m/s to get kilometers per minute? Select each correct answer. 60 s/1 min 1min/60 s 1 km/1000 m 1000/m1 km

Answers

Answer: option A and C (km/1000m and 60second/ 1 minute )
In this question, we have two unit that needed to be converted, meter/second into kilometer/minute. 
First, we need to convert meter into the kilometer. One kilometer is equal to 1000 meter. To change meter into the kilometer, the unit used for multiplication should be km/1000m which is option C.
Then we need to convert second into the minute. One minute is equal to 60 seconds. To change "/second" into "/minute" the multiplication unit should be 60second/ 1 minute which was option A

Took the test and it's correct: km/1000m and 60second/ 1 minute

There are 4680 gym members in total. 3 8 are aged 25 - 59 years, 2 5 are over 60 years and the remainder are under 25 years. How many members are under 25 years?

Answers

4680-38-25=4617members
4680-(38+25)=4620 Add up those above 25 years and subtract the sum from total number of gym members

Combine 4c - c in like terms

Answers

If no mod deletes this, you get 3c

The mass of Earth is approximately 5.9 x 1024 kg and the mass of Venus is approximately 4.9 x 1025 kg. What is their total combined mass expressed in scientific notation? Show your work. DID I GET THE ANSWER RIGHT? IF NOT EXPLAIN HOW TO FIND THE ANSWER!! AND THE WORK!!

WORK:
5.9 x 4.9 = 28.91

25-24= 1

ANSWER:
28.91 x 10^1

Answers

I'm not sure if that's the correct method of finding that (it could be, I was just never shown that kind of method). What I did was multiply everything out, that way you have two numbers vs two equations. Then add those two numbers and turn that into scientific notation.

In the United States 13 out of every 20 cans are recycled what percent of cans are recycled show work

Answers

The first  step is to divide 13 by 20. You will come out to 0.65. It will be 65%.


what is the radius for 439.6 circumference

Answers

Well, the formula to find the radius with the circumference would be: [tex] \frac{C}{2 \pi } [/tex]
So just insert 439.6 as C (the Circumference) and you'd get your answer...

What's the answer to this question ? I've been really confused for the past 20 minutes

Answers

sqrt(570025)= 755 feet

 one side is 755 feet


 the hint told you how to solve it

What is the value of the expression All of 3.6 multiplied by 10 to the power 8 over all of 1.2 multiplied by 10 to the power 3?
a 2.4 × 10^5
b 3.0 × 10^11
c 3.0 × 10^5
d 2.4 × 10^11

Answers

you divide 3.6 by 1.2 as you normally would and then subtract the exponents to get c. 3.0 x 10^5

Answer:

Your answer would be 3.0 X 10^5

Step-by-step explanation:

3.6 X 10^8 over 1.2 X 10^3 would give you 300000 which we put in scientific notation which we move the decimal 5 places to the left. Then we get 3.0 X 10^5

Hope this helps! :-)

Melissa bought 42 pine seedlings and 30 juniper seedlings

Answers

it could be 42÷30=1.4 and 42×30=1,260 and 42-30=12 and 42+30=72

A 5- digit number has digits 0,5,7,9, and 0. To the nearest thousand, it rounds to 80,00 What is the number?

Answers

The answer to that question is 79,500.

48 inches long and 24 inches wide. What is the area of the poster in square feet?

Answers

Hi there! We just need to use some simple multiplication for this equation. I'll walk you through it.

Remember that 1 foot is 12 inches. This'll come in handy later.

48 * 24 = 1152

Now, divide this by 12.

1152/12 = 96

There you go! The area of the poster is 96 square feet.

:)

the area of the poster in square feet is,  8 feet²

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

Length of poster = 48 inch

Width of poster = 24 inch

Since, We know that;

1 feet = 1 / 12 inch

Hence, Length of poster = 48 / 12

                                      = 4 feet

And, Width = 24 / 12

                 = 2 feet

Thus, Area of poster = Length x Width

                                = 4 x 2

                                = 8 feet²

Learn more about the multiplication visit:

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How can you round 25.691 to the nearest place

Answers

What place does this number need to be rounded to?

What is $117 in a ratio of 1:8

Answers

if 117 is the one:

117: 936

if 117 is the eight:

1: 14.625


hope this helps

Which of the following numbers is irrational?


-7/4, 2/3, square root of 3, square root of 4

Answers

Irrational means that it cannot be expressed as a whole number, fraction, or decimal.

-7/4 is a fraction
2/3 is a fraction
square root of 4 is plus or minus 2, whole numbers

But, square root of three can't possibly be expressed as a solid number.

Hope this helps!

Answer:

The square root of 3

Step-by-step explanation:

An irrational number can not be written as a ratio.

And because the square root of 3 is the only answer that can not be written as a ratio, it is irrational.

Therefore, The square root of 3 is Irrational.

PLEASE HELP FAST!!!!!!!!!!!!!!!!!


Tomas asked 15 students whether summer break should be longer. He used his calculator ti divide the number of students who said yes by the total number if students. His calculator showed the result as 0.9333......

a. Write this number as a fraction.


b.How many students said that summer break should be longer


Answers

a would be what makes sense

The number as a fraction will be 14 / 15. Then the number of students who said that summer break should be longer will be 14 out of 15.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Tomas asked 15 students whether summer break should be longer. He used his calculator to divide the number of students who said yes by the total number of students. His calculator showed the result as 0.9333......

Then the result can be written in the form of fractions that will be

0.9333...... = 14 / 15

Then the number of students who said that summer break should be longer will be 14 out of 15.

More about the Algebra link is given below.

https://brainly.com/question/953809

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what is 8 divided by 6/7

Answers

9 1/3
Hope this helps! =D
Your answer would be 28/7 
hope this helps !

evaluate this exponential expression 7*(6+2)^2-3^2

Answers

Yay. I get to answer a question that is actually fun. 

[tex]7(6 + 2) ^2 - 3^2 7(8) ^2 - 3^2 7(64) - 9 448 - 9 439[/tex]

Thus, your answer is: [tex]439[/tex]
Following the Order of Operation, the first step would be to solve what is in parenthesis so:
7*(8)^2-3^2
Now, exponents:
7*64-9
Now multiply what you can:
448-9
and finally, subtract for your answer:
439


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