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3 years ago

4( x + 5) + 4x + 8 which of the following is equivalent to the expression above.

Mathematics

1 answer:

Serjik [45]3 years ago

6 0

Answer:option A is the correct answer

Step-by-step explanation:

The given expression is

4( x + 5) + 4x + 8

To simplify the given expression, the first step is to open the parenthesis by multiplying each term in the parenthesis by the term outside of the parenthesis. It becomes

4x + 20 + 4x + 8

Next step is to add like terms. We would do this by adding each term containing x together and also add the constants together. It becomes

4x + 4x = 20 + 8

8x+ 28

Since 4 is a common factor of both terms, we would factorize 4 out. It becomes

4(2x + 7)

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Which ordered pair is a solution of the equation? y-3=5(x-2) A.) (2,3) B.) (3,2) C.) Both D.) Neither

White raven [17]

Answer:

A is the only solution.

Step-by-step explanation:

A simple way to solve it is to plug in the x and y values

For A, we plug in 2 for x and 3 for y

3-3=5(2-2)

0=5(0)

0=0

Ordered pair A is a solution

For B, plug in 3 for x and 2 for y

2-3=5(3-2)

-1=5(1)

-1 does not equal 5

Therefore only A is a solution

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2 years ago

F(x)=3 over x+2-x-3 squared what is f(7)

dimaraw [331]

<u>Answer:</u>

$f(7)=\frac{-5}{3}$ or $f(7)=-1.67$

<u>Step-by-step explanation:</u>

We are given the following function of x and we are to find the value of $f ( 7 )$ :

$f ( x ) = \frac { 3 } { x + 2 } - \sqrt { x - 3 }$

Substituting the given value (7) in the above function to get:

$f(x)=\frac{3}{x+2}-\sqrt{x-3}$

$f ( 7 )= \ frac{3}{7+2}-\sqrt{7-3}$

$f(7) = \frac { 3 } { 9 } - \sqrt { 4 }$

$f(7)=\frac{1}{3}-2$

$f(7)=\frac{1}{3}-\frac{6}{3}$

$f(7)=\frac{-5}{3}$ or $f(7)=-1.67$

7 0

3 years ago

A recipe that serves two people calls for 1/2 cup of flour. How much flour will the cook need to serve eight people? A.1 1/2 cup

Marat540 [252]

Answer:

B.2 cups

Step-by-step explanation:

Because 1/2+1/2+1/2+1/2=2 cups

5 0

3 years ago

Read 2 more answers

What is the value of k?

Romashka-Z-Leto [24]

Answer:

k = 10

Step-by-step explanation:

The triangles angels added up must equal 180 degrees, and the top angle is 65 degrees by the 180 degree rule.

So 10k + 15 must equal the remaining 115

subtract 15 from each side and you get 10k = 100

divide each each by 10 and you get the answer of k = 10

3 0

2 years ago