All categories

4 years ago

Can someone please help me with this question?

Mathematics

1 answer:

White raven [17]4 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

You might be interested in

A city police force is made up of 24% females. If there are 72 females on the force, how many males are on the force?

erastovalidia [21]

Answer:

228 males

Step-by-step explanation:

Let x be the number of males.

This means x + 72 is the total number of people.

So $\frac{72}{x+72}$ is the fraction of females in the force.

Thus, we can form the equation:

$\frac{72}{x+72} = 0.24$

$x+72 = \frac{72}{0.24}$

$x = \frac{72}{0.24} -72$

$x = 228$

Thus, the answer is 228 males.

6 0

3 years ago

Priya, variable "p", jumped 3 inches more than Xeno, “x”, in a high jump contest. Mai, “m”, jumped three times as many inches hi

IceJOKER [234]

Answer:

Xeno jumped 1 2/3 in

Step-by-step explanation:

if Mai jumped 3 times higher than Priya dividing Mai's 14 by 3 would get Priya's height. Then by subtracting 3 from Priya's height, which is 4 2/3, you get Xeno's height which is 1 2/3 in

4 0

3 years ago

Multiply: (49)(58)

IrinaVladis [17]

(49)(58) = 2,842 49 x58 ------ 2,842

4 0

4 years ago

If f(x) = x2, which of the following describes the graph of f(x - 1)? A. The graph of f(x - 1) is a horizontal shift of f(x) = x

pantera1 [17]

Answer:

Step-by-step explanation:

To understand this, we can look at the vertical & horizontal translations of a parabola of the form $f(x)=x^2$

A vertically translated parabola has the form $f(x)=x^2+k$ , where k is the vertical shift upward when k is positive and vertical shift downward when k is negative.
A horizontally translated parabola has the form $f(x)=(x-a)^2$ , where a is the horizontal shift rightward when a is positive and horizontal shift leftward when a is negative.

When we replace x of the original function with (x-1), we have $f(x)=(x-1)^2$ . According to the rules, this means that the original function is shifted 1 unit right (horizontal shift).

Correct answer is A.

4 0

3 years ago

Read 2 more answers

Which equation represents this line in point slope form -3,4 -3,4

spin [16.1K]

Answer: <em>I think the answer is 5</em>

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers