Mathematics Middle School

please help fast lol, ty will mark brainliest


Which of the following equations is equivalent to = 3( − 2) + 7?


= 3 + 1

= 3 + 5

= 3 − 13

= 3 − 1

Answers

Answer 1
None of them are equivalent because
= 3(-2)+7
= -6 +7
= 1
Answer 2
None of them are equivalent since 3 times -2 is -6 + 7 equals 1

Related Questions

someone please helppp

Answers

Answer:

Step-by-step explanation:

More information?

Chloe wants to earn money at home to buy something at the store the easiest way possible. She could feed the dog for 30 dollars a week or she could ask her grandma for 48$ and walk the dog for 22 dollars a week. She wants to know out of curiosity how many weeks would it take to earn the same amount of money for both tasks?

Answers

it takes 8 weeks to earn the same amount

ASAP pls helps what is 1/2 x 1/4

Answers

Answer:

1/8

Step-by-step explanation:

1/2 × 1/4 = 1 × 1/2 × 4 = 1/8

Hi!
Its 1/8
Hope this helps!!

i need help on this question

Answers

Answer:

uhh

Step-by-step explanation:

Yuhhhhhhhhhhhhhhhhhhhhhh

PLZZZ help with this its pretty simple!

Answers

Step-by-step explanation:

the parenthesis are there just to confuse you. Since there are no negatives or numbers outside of the parenthesis, you do not need them.

2x^3-5+x^3+3

add like terms

3x^3-2

Hope that help :)

3x^3 -2 the sign ^ that means the number three go above

Help me with these 2D stuff please, it should be simple and NO LINKS
Is a quadrilateral with 2 pairs of parallel sides a rhombus? Why or why not?

Answers

No because a rectangle also has 2 pairs of parallel sides.

A community swimming pool has a deep end and a shallow end. The volume of water in the deep end can be represented by (2x2+12x+10) ft3 and the volume of the water in the shallow end can be represented by (4x2−100)ft3.

Write two different equivalent expressions ("simplified" and "simplified") that represents the total volume of the water in the pool in ft3.

Answers

Answer:

(2x2+12x+10) = (4x+12x+10) = (16x+10) ft³

(4x2−100) = (8x-100) ft³

(8x-100 + 16x+10 + x) > (24x-90)(8x-100 + 16x+10 - x) < (24x-90)

please help i’ve been struggling with this for awhile.
please be serious or i will remove your points and comment. giving brainlest if explained thank you.

Answers

Answer:

320 CM^3

Step-by-step explanation:

6 x 8 x 5 =240

.

prism volume = 4 x 4 x 5 = 80

.

240 + 80 = 320 cm^3

Toni’s school day is 8 hours. She has 8 classes that
are 3/4 hour long. How many hours is Toni not in
class while she is at school?

A. 1 1/2
B. 2
C. 3/4
D. 9

Answers

The answer is B. 3/4 of an hour is 45 minutes, and 1 hour is 60 minutes, so we take the remaining 15 minutes, multiply it by 8 and that gives us 120. We know 60 times 2 is 120, so that gives us 2 hours.
The answer is B. 2 hours

Please helppp, Net Force

Answers

Answer:

The girls team

Step-by-step explanation:

38 +15+40=93

35+20+5=60

93n is larger than 60n

Answer:

the left side is 93 and on the right is 60 so the left wins

Step-by-step explanation:

it takes 48 minutes for 10 people to paint 8 walls.how many minutes does it take 6 people to paint 9 walls?

Answers

I think the answer is 28.8 minutes

First person to answer with an explanation get Brianliest

Answers

Hope this helps if so please brainliest :)

and also sorry for the wait

Step-by-step explanation:

I believe B

Because on the x axis it reaches 600 on eight and the last number that was recorded was 450 so 600-450=150

Answer:

In the first 6 years, there would be an increase in 75 people. For years 7 and 8, it would be doubled to 150 members per year (B)

Step-by-step explanation:

Hope this helps!

can you please help me??​

Answers

Answer:

1. A triangular prism

2. A rectangular triangle

Step-by-step explanation:

I agree about what the 1st guy said

PLZZZ help with this its pretty simple!

Answers

Answer:

the answer is B

Step-by-step explanation:

2y^2 × 8y =16y^3

2y^2×+6=+12y

therefore B is the correct answer

Pls help me on this i keep getting it wrong

Answers

Answer:

Step-by-step explanation:

1) W = 26 T + 400

2) 26 x 16 + 400 = 816

The guy above my is right he gets the Brainly

PLEASE HELP ME PLEASE PLEASE PLEASE!!! IMA FAIL THIS TEST HELP

At a pizza restaurant they sell their pizza for $10 each, plus $2 per topping. Write a function rule (equation) that describes the totals cost, y, of the pizza for x number of toppings. Hint #1: Make sure to create a function table-this will be needed for Part B. Hint #2: the answer you need to type in for Part A is A FUNCTION RULE that represents this problem.

Answers

The equation is y=2x+10
Y=2x+10 just did that question on a test like 5 minutes ago

PlZ answe this I BEG YOU!!

Answers

We have, 60% × x = 54

or,  

60

100

× x = 54

Multiplying both sides by 100 and dividing both sides by 60,

we have x = 54 ×  

100

60

x = 90

If you are using a calculator, simply enter 54×100÷60, which will give you the answer.

54 divided by 100 Is 0.54 and 0.54 x 60 is 32.40 so it would be 32.4

Can somone help me pls ill mark brainliest if correct

Answers

Answer:

12.5 units²

Step-by-step explanation:

7.5 + 2.5= 10

10 ÷ 2 = 5

5 x 2.5 = 12.5

12.5 units squared
Your welcome

please help, if you need more info let me know

Answers

Answer:

I nee more info

Step-by-step explanation:

the answer is 46 square feet! i hope that helped.

what is the lateral surface area of a rectangular prism in square inches.

Answers

Answer:

When a prism has its bases facing up and down, the lateral area is the area of the vertical faces.

(For a rectangular prism, any pair of opposite faces can be bases.)

The lateral area of a right prism can be calculated by multiplying the perimeter of the base by the height of the prism.

Halind bought a hot dog for $4. He also bought a some
bottles of water for $2 each. Halind did not spend more
than $15 on the hot dog and waters. Which inequality can
be used to find w, the number of waters that Halind
bought?

A. 2W - 4 = 15
B. 2w + 4 > 15
C. 2W - 4 > 15
D. 2w + 4 < 15

Answers

Answer:

b

Step-by-step explanation:

your adding 2 and 4 together and the question also states that they didn't spend more than $15 so...

2w + 4 is less than $15

how many square feet of outdoor carpet will we need for this hole?
11ft
6ft
2ft
3ft
7ft

Answers

the perimeter is 29! hope this helps
Area of a rectangle plus area of the 2 triangles.
Area of rectangle = lw = 3x11 = 33
Area of triangle1 = 1/2bh = 1/2 x 2 x 3 = 3
Area of triangle2= 1/2bh = 1/2 x 3 x 4 = 6

Total area = 33 + 3 + 6 = 42ft

HELP ASAP!!! What is the difference between a prism and a pyramid? How does finding their surface area differ?​

Answers

Answer:

The sides are triangles. The total number of faces of a pyramid is one more than the number of edges of the base polygon. A prism has two bases and rectangular sides.To find the surface area of a pyramid, find the area of the base and the areas of all the triangular sides and add them together.

Step-by-step explanation:

sorry if im wrong

what is the correct scientific notation ?

Answers

3) 7.67 x 10 ^-2
4) 3.3 x 10 ^3
Number one is b

And number two is c

PLZZZ help with this its pretty simple!

Answers

Answer:

According to me it should be, -2x² + 12x - 7

Step-by-step explanation:

you gotta multiply "-" between two equations by the second equation which simplifies to (x² + 5x - 6) + (-3x² + 7x - 1). Now if the two equations are simplified together:

⇒ x²- 3x² = -2x²

⇒ 5x + 7x = 12x

⇒ (-6) + (-1) = -7

Putting it all in one equation will result in: -2x² + 12x - 7

Hope this helps, good luck!

I agree with the other person the answer is -2x^2+12x-7

if a die cast rally car drove 75 centimeters per second, how long would it take to go 100cm?

Answers

The exact answer is 1 1/3 seconds but if you’re rounding the answer is two seconds

Find the missing side. Round to the nearest tenth when necessary.

Answers

Answer:

15.6

Step-by-step explanation:

Because it is a right triangle, you can use the Pythagorean Theorem. The theorem is c^2 = a^2 + b^2, with c being the hypotenuse, and a and b being the legs. So plug in the values and you will get 18^2=9^2 + b^2. Solve for b and you will get 15.6.

Answer:

x=15.59

Step-by-step explanation:

using the pythagorean theorem we know a²+b²=c²

also that c²-a²=b². in this case we're using the second one. c² is 18², and a² is 9². 18²-9² is 243. we then find the square root of that number to get x (b²). x=15.59 rounded to the nearest hundreth.

someone help me please

Answers

Answer:

Line c is the line that passes through the most points, so I think it's c.

Hope this helps :)

Definitely has to be line c!

HELP HELP HELPPPPPPP!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B

Step-by-step explanation:

The center is the number in the middle of them all (4) and the range/center represents the difference of the smallest and largest number (5).

yea what they said ig

7th grade math, find the answer and show all step to how you found the answer!!!!!!!

Answers

Answer:

8x-10=110

then 8x=110+10

then 8x=120

then x=120/8

then x=15

ANSWER IS 15

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