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3 years ago

-5y-9 =-(-1) A.- 1/2 B. -2 1/2 C. -2 D. -2/5

Mathematics

1 answer:

lbvjy [14]3 years ago

3 0

Answer:

-5y=1+9

-5y=10

Y=-2

Your answer is C

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Complete the synthetic division problem below.

miskamm [114]

Step-by-step explanation:

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3 years ago

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Multiply. Check picture.

VashaNatasha [74]

The answer is $3x^4-13x^3-x^2-11x+6$ .

Solution:

Use algebraic identity: $a^m\times a^n=a^{m+n}$

For example: $x^2\times x=x^{2+1}=x^3$

Given expression $(x^2-5x+2)$ and $(3x^2+2x+3)$ .

To multiply these equations.

$(x^2-5x+2)\times(3x^2+2x+3)$

$=x^2(3x^2+2x+3)-5x(3x^2+2x+3)+2(3x^2+2x+3)$

$=(3x^4+2x^3+3x^2)+(-15x^3-10x^2-15x)+(6x^2+4x+6)$

$=3x^4+2x^3+3x^2-15x^3-10x^2-15x+6x^2+4x+6$

Combine like terms together.

$=3x^4+(2x^3-15x^3)+(3x^2-10x^2+6x^2)-15x+4x+6$

$=3x^4-13x^3-x^2-11x+6$

$(x^2-5x+2)\times(3x^2+2x+3)=3x^4-13x^3-x^2-11x+6$

Hence the answer is $3x^4-13x^3-x^2-11x+6$ .

3 0

3 years ago

Mr and mrs Gomez are buying carpet for their square shaped bedroom which measures 7 yd along each wall the carpet is $21 per squ

Andreas93 [3]

Answer:

Step-by-step explanation: The area of the bedroom is

A=7yd^2

The total cost is the sum of the price rates times this area.

C=A•($21+$5)/yd^2

where C is total cost.

C=7yd^2•($21+$5)/yd^2

C=$182

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3 years ago

. 7/8 = /48 A. 6 B. 1 C. 13 D. 42

hodyreva [135]

7/8=x/48

x=(7/8)48
x=(7)(48/8)
x=(7)(6)
x=42
D.42

4 0

3 years ago

the hall family garden is 3/4 of an acre. if they divide their garden into 1/8 acre sections, how many sections will they have?

Korvikt [17]

We know that
The hall family garden is ------------> 3/4 of an acre
if they divide their garden into 1/8 acre sections
so
(3/4)/(1/8)-------> (3/4)*(8)--------> 8*3/4------> 24/4-----> 6 sections

the answer is
6 sections

6 0

3 years ago