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Aleksandr-060686 [28]
3 years ago
10

Can someone please help me with this question?

Mathematics
1 answer:
White raven [17]3 years ago
4 0

Answer:

B. Lynden  

Step-by-step explanation:

4(2x+2) - 2(x + 2) = 10 - 3(x +2)

To use the distributive property, you multiply the terms inside the parentheses by the number outside them.

8x + 8 - 2x - 4 = 10 - 3x - 6

A is wrong. Gregory used the addition property incorrectly. He should have gotten

4(2x + 2) + (x + 2) = 10

C is wrong. Whitney used the distributive property incorrectly. She made a mistake when distributing the -2 in -2(x + 2). She should have gotten

8x + 8 - 2x - 4 = 10 - 3x - 6

D is wrong. David combined like terms incorrectly. 10 and 3x are not like terms. He should have gotten

4(2x + 2) - 2(x + 2) = 4 - 3x

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Perform the indicated operations and chose the correct answer from the listed options.
ehidna [41]

Answer:

The correct answer is option C.  3

Step-by-step explanation:

It is given an expression in variable x

(x² + 3x²)/(x + 1) ÷ (x² - 9)/(3x + 3) * (x - 3)/x

<u>To find the simplified answer</u>

x² + 3x² = x(x + 3)

x² - 9 = (x + 3)(x - 3)

The given expression can be written as,

(x² + 3x²)/(x + 1) ÷ (x² - 9)/(3x + 3) * (x - 3)/x

 = x(x + 3)/(x + 1) * 3(x + 1)/(x + 1)(x - 1) * (x -3)/x

 =[ x(x +3) * 3(x +1) *  (x -3)]/[(x + 1) * (x + 3)(x - 3) *x]

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The correct answer is option C.  3

3 0
3 years ago
Can someone help me with please??​
OverLord2011 [107]

Answer:

The angle is 35 degrees

Step-by-step explanation:

Since this is an isosceles triangle, we know that the two remaining angles must be the same. Set those angles equal to x. Now, we can solve for x by adding those two angles to the third angle and setting equal to 180.

x + x + 110 = 180

2x + 110 = 180

2x = 70

x = 35

6 0
3 years ago
D = {x:x is a factor of 12<br>​
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Answer:

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3 years ago
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What is the solution to the system of equations?
kobusy [5.1K]

Answer:

The solution I got is (4,2)

Step-by-step explanation:

When I plotted the equations on a graph, they intercepted at (4,2).

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2 years ago
EXPONENTS:<br> What is the value of 7 cubed?<br> A. 14<br> B. 21<br> C. 49<br> D. 343
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Answer:

C

Step-by-step explanation:

7*7=49

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