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o-na [289]
3 years ago
12

Brainiliest if u are right 2. Solve the following equation.

Mathematics
2 answers:
Marta_Voda [28]3 years ago
7 0
A is the answer. Look at the attachment for work.

jasenka [17]3 years ago
4 0

Answer:

c

Step-by-step explanation:

7 plus 7 equals 28 and 28 minus 7 equals 21

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Use the grouping method to factor the polynomial below completely 3x^3+9x^2+5x+15​
Tomtit [17]

Answer:

(x+3)( 3x^2 +5)

Step-by-step explanation:

3x^3+9x^2+5x+15​

Split into two groups

3x^3+9x^2     +5x+15​

Factor 3x^2 out of the  first group and 5 out of the second group

3x^2 ( x+3)  + 5(x+3)

Factor out x+3

(x+3)( 3x^2 +5)

6 0
3 years ago
The house has a form of a rectangle with one side two and a half times as long as the other side. a Construct the expression for
Nookie1986 [14]

Answer: A=2.5x^{2}


Step-by-step explanation:

1. Let's write the following formula for calculate the area of a rectangle:

A=yx

Where y is the lenght (the longer side) and x is the width (the shorter side).

2. You know that the length is 2.5 times as long as the other side, which indicates a multiplication. Then:

y=2.5x

3. So, you must substitute y into the equation for calculate the area of the rectangle and then you must simplify.

4. Then, you obtain the following expression:

A=(2.5x)(x)\\A=2.5x^{2}


4 0
3 years ago
Please help me if you can. Please also write how you got the answer thank you.
adelina 88 [10]

Answer:

1) r, q, s. 2). 5

Step-by-step explanation:

1) from the given (q) is smaller than (r) and (s) is less than (q) by 2.

2) you need to make all the fractions have the same numerator so you will multiply both the firs and third fraction by 3÷3 ( which is 1 and will not affect the value but will make the numerator of the fractions equal) and the fractions between them is the second fraction and it's denominator is x and there is 5 fractions between the two numbers so there are 5 possible values of x

6 0
3 years ago
What is 35 cents times 500 ​
kvasek [131]

Answer:

17500

Step-by-step explanation:

you just multiply it by 35 if it is pennies but you have to tell me if it is dimes or whatever

7 0
3 years ago
Read 2 more answers
Please help fast....
Doss [256]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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