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ICE Princess25 [194]
3 years ago
12

The product (x + 3y)(3x – y) =

Mathematics
1 answer:
Digiron [165]3 years ago
4 0

Answer: 3x²-3y²+8xy

Step-by-step explanation:

When you multiply two factors, you want to use the FOIL method.

First

Outer

Inner

Last

(x+3y)(3x-y)                  [distribute by FOIL]

3x²-xy+9xy-3y²            [combine like terms]

3x²+8xy-3y²                 [rewrite]

3x²-3y²+8xy

Now, we know the product is 3x²-3y²+8xy.

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Which of the following is true? A) −16=−16 B) −29>24 C) −47<−43 D) −70<−77
vfiekz [6]

Answer:

A and C are true.

Step-by-step explanation:

-16 = -16 that's just a given, they are the same number. And -47 is less than -43, since -43 would be a higher number considering it's in the negatives.

6 0
3 years ago
(b) What is 0.36 (six repeating) expressed as a fraction in simplest form?
zubka84 [21]
 0.3666.....

If a number is repeating singly, just know it has to do with dividing by 9.

Let the number be x = 0.36....  (i)

Multiply both sides by 10.

10x = 3.66...         (ii)

Equation (ii) - (i)

10x - x = 3.66 - 0.36

9x = 3.3

x = 3.3/9

x = (33/10)*(1/9)

x = 33/90

x = 11/30

The simplest fraction is 11/30

3 0
4 years ago
Cody lives 1 mile from spring lake park After he walks 5/8 miles towards spring lake park, he stops to talk with his friend alle
Nookie1986 [14]
I cant make a timeline but the correct answer is 3/8 of a mile
6 0
3 years ago
What is 2/3 divided by 1/2 ?<br><br> A. 3/4<br><br> B. 4/3<br><br> C. 1/3<br><br> D. 1/4
lesya692 [45]

Answer:

B. 4/3 is your answer dear.

Step-by-step explanation:

Solve

2/3 * 2/1

coz it is reciprocal .

you'll get 4/3

Hope you got it.

4 0
3 years ago
Can anyone help me solve this problem?
lesantik [10]
The answer is 8.9 units
4^2+8^2=x^2
80=x^2
8.9≈x
8 0
2 years ago
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