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3 years ago

10

Consider this equation: {x-9 - 2x+2 = 1 Which is an equivalent equation after combining like terms? 8 X-11=1 3 -= -4 X-71 3 8 -7

31 3 W Y-11=1 3

1 answer:

grandymaker [24]3 years ago

8 0

Answer:

B. -4/3x - 7 = 1

Step-by-step explanation:

2/3x - 9 - 2x + 2 = 1
2/3x - 2x - 7 = 1
2/3x - 6/3x - 7 = 1
-4/3x - 7 = 1

Correct option is B

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5. Review: Determine if the data set is a function and explain why or why not: {(-5,6).(-6, 2).(-2,6). (-1,8). (4,6)

Roman55 [17]

Answer:

It is a function

Step-by-step explanation:

Domain: (-5, -6, -2, -1, 4)

Range: (2, 6, 8)

each element of the domain maps to one element of the range, so it is a function.

7 0

3 years ago

At a sale this week, a suit is being sold for $296.40. This is a 62% discount from the original price. What was the original pri

Soloha48 [4]

Suppose the original price to be x.
62%x=296.4
Divide both sides by 62% to get x=478, which is the original price.

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3 years ago

Read 2 more answers

How do I find the y intercept in a fraction

Furkat [3]

ANSWER:

Both functions have the same slope

The linear equation does not have a y-intercept

The table and the grahp express an equivalent function

STEP-BY-STEP EXPLANATION:

In order to compare, we must calculate the slope of the table, knowing that the equation in its slope and intercept form is the following:

$\begin{gathered} y=mx+b \\ \text{where m is the slope and b is y-intercept} \end{gathered}$

The formula to calculate the slope is the following:

$m=\frac{y_2-y_1}{x_2-x_1}$

The points are (-6, -9/2) and (4,3), replacing:

$m=\frac{3-(-\frac{9}{2})}{4-(-6)}=\frac{3+\frac{9}{2}}{4+6}=\frac{\frac{15}{2}}{10}=\frac{15}{20}=\frac{3}{4}$

The slope is 3/4

Now, for b

x = 4

y = 3

m = 3/4

replacing:

$\begin{gathered} 3=\frac{3}{4}\cdot4+b \\ b=3-3 \\ b=0 \end{gathered}$

The equation is:

$y=\frac{3}{4}x$

Therefore, the true statements are:

• Both functions have the same slope

,

• The linear equation does not have a y-intercept

,

• The table and the grahp express an equivalent function

8 0

1 year ago

Solve for x.<br><br> x=<br><br> Look at image

postnew [5]

Answer:

$x = 14$

Step-by-step explanation:

To find x, the following equation is generated given the available information:

$\frac{(x + 7) + x)}{x + 7} = \frac{12 + 8}{12}$

$\frac{2x + 7}{x + 7} = \frac{20}{12}$

$\frac{2x + 7}{x + 7} = \frac{5}{3}$

Cross multiply

$3(2x + 7) = 5(x + 7)$

$6x + 21 = 5x + 35$

Collect like terms

$6x - 5x = - 21 + 35$

$x = - 21 + 35$

$x = 14$

8 0

3 years ago

Which of these is equivalent to 1 over x to the power of 5 ? 1 fifth x negative x to the power of 5 x to the power of 5 x to the

Kisachek [45]

Answer:

x^-5 = x to the power of negative 5

Step-by-step explanation:

Which of these is equivalent to 1 over x to the power of 5 ?

Mathematically this is expressed as

(1/x)⁵

We have a rule when it comes to expressing power

(1/a)^b = a^-b

Hence, applying this rule to our question

(1/x)⁵ = (1/x)^5

= x^-5

This is written in words as:

x to the power of negative 5

5 0

3 years ago