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NemiM [27]
3 years ago
10

Multiply the following -7x(11x +12)

Mathematics
2 answers:
Elena L [17]3 years ago
8 0

Answer: -77x^2 - 84x

Step-by-step explanation:

-7x ( 11x +12)

-77x^2 - 84x

Andrei [34K]3 years ago
6 0

Key to this problem! Distribution!

-7x(11x+12)

Imagine -7x going to both 11x and 12. Meaning it would multiply with both those numbers. If helpful, write arrows that it goes to both numbers inside the parenthesis to help you out.

-7x(11x)+12(-7x)

-7 x 11 is -77, and x times x is x^2, so the first part would equal to -77x^2

12 x -7 is -84, and add a x to get -84x.

The final answer is -77x^2-84x

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Charmaine, Hans and Tom have a total of $84 in their wallets. Tom has 3 times what Charmaine has. Hans has $9 more than Charmain
Svet_ta [14]

Tom has $252, Hans has $93 and Charmaine still has $84.

8 0
3 years ago
Joey is very hungry. He says he wants to eat a 100- square- inch area of pizza. Which size(s) of pizza should he order? Why?
Rufina [12.5K]

Answer:

diabetes

Step-by-step explanation:

he should order diabetes

7 0
3 years ago
This morning, the temperature rose 2 degrees in 2/3 of an hour at what rate did the temperature rise per hour
insens350 [35]

Answer:

3 degrees per hour

Step-by-step explanation:

2 degrees in 2/3 of an hour

2/2 = 1

1 degree in 1/3 of an hour

1*3 = 3

3 degrees in 1 hour

5 0
3 years ago
Mason currently pas $420 per month in rent. the contract on his apartment sates that his rent will increase by 6% next year.
Sergeeva-Olga [200]

Answer:

a. Mason's rent will increase by $302.40 next year.

b. Mason's new rent per month next year will be $445.20.

Step-by-step explanation:

The first question is asking us how much Mason's rent will increase next year.

If the contract on Mason's apartment states that his rent will increase by 6% next year, and he is currently paying $420 per month, to calculate the increase of the rent next year, we will first have to multiply $420 by 12 months to calculate how much Mason is paying in rent a year:

420* 12=

5040

Therefore, Mason is currently paying $5040 a year.

With this information, we will now need to calculate 6% of $5040. To calculate 6% of $5040, convert 6% to decimal form, and multiply it by $5040.

<em>6% means 6 per cent/hundred, so it can be represented as:</em>

\frac{6}{100}

<em>The fraction </em>\frac{6}{100}<em> can be represented as (we're two places behind the decimal, in the hundredths place)</em>:

0.06

Now, multiply the decimal form of 6% by $5040:

0.06*5040=

302.40

Therefore, Mason's rent will increase by $302.40 next year.

-

To calculate Mason's new rent per month next year, we can divide $302.40 into 12 months to see the rent increase per month, and then add that quotient to Mason's current rent per month, $420:

302.40 ÷ 12=

25.20

Now, that we know the rent per month will increase by $25.20 next year, we can add $25.20 to Mason's current rent per month:

420+25.20=

445.20

Therefore, Mason's new rent per month next year will be $445.20.

7 0
3 years ago
What is the area of rhombus ABCD ?
zimovet [89]
The area is 36 units squared.

You have three ways you can solve this question.

Method 1:

Split the rhombus into two equal triangles.
You will get triangle ACD and triangle ACB.

Count the base length and height length of each triangle using the diagram.
You will get base = 6 units and height = 6 units. Plug this into the area of a triangle and then multiply it by 2.

A = bh/2 * 2
A = 6(6) / 2 * 2
A = 36 / 2 * 2
A = 18 * 2
A = 36

Method 2:

Calculate the length of DP.
The length of line segment DP is √28.8

Calculate the length of DC.
The length of line segment DC is 3√5

Put into equation A = bh.

A = bh
A = 3√5(√28.8)
A = 36

Method 3:

Calculate the length of each diagonal and put into formula A = 1/2(d1 * d2)

Diagonal DB = 12 units
Diagonal AC = 6 units

A = 1/2(d1 * d2)
A = 1/2(12 * 6)
A = 1/2(72)
A = 36

I love procrastinating my history essay for this :D
6 0
3 years ago
Read 2 more answers
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