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larisa86 [58]
2 years ago
10

If x - 2 = 13, and x + 65 = 80, what is x?

Mathematics
2 answers:
Ad libitum [116K]2 years ago
8 0

Answer:

15

Step-by-step explanation:

Goshia [24]2 years ago
5 0
The answer will be x=15

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The lines shown below are perpendicular. If the green line has a slope of 2/5 what is the slope of the red line
Ksenya-84 [330]
In this item, we are not given with the figure but knowing that these lines ought to be perpendicular then we will be able to derive the relationship between the slopes of the line. 

The slopes of the perpendicular line are the negative reciprocals of one another. If we represent the slopes of the lines as m₁ and m₂, the relationship can be written in the form,
           (m₁)(m₂) = -1

We are given with one of the slopes. To determine the value of the second slope then,
            m₂ = -1/m₁
            m₂ = -1/(2/5)
            m₂ = -5/2

<em>ANSWER: m₂ = -5/2</em>
6 0
3 years ago
Math ..................
Vaselesa [24]

It can work well here to simplify inside parentheses first.

\displaystyle\left(\frac{4x^{-2}y^{2}}{12x^{-4}y^{-1}}\right)^{3}=\left(\frac{4}{12}x^{(-2-(-4))}y^{(2-(-1))}\right)^{3}\\\\=\left(\frac{x^{2}y^{3}}{3}\right)^{3}=\frac{x^{(2\cdot 3)}y^{(3\cdot 3)}}{3^{3}}\\\\=\frac{x^{6}y^{9}}{27}

_____

The correct selection is not show with your problem statement.

7 0
3 years ago
Read 2 more answers
Find the new amount. explain <br><br><br>200 books; 75% decrease <br><br>160 bananas; 20% decrease
prohojiy [21]

Answer:

75% of 200 = 50; 20% of 160 = 128

Step-by-step explanation:

200 (0.75) = 150

200 - 150 = 50

160 (0.20) = 32

160 - 32 = 128

8 0
3 years ago
Jan used 35 blocks to make 5 buildings. Each building is made of an equal number of blocks. Which of the following shows how to
elena-s [515]

Answer:

7

Step-by-step explanation:

35 divided by 5 equals 7

8 0
2 years ago
If f(x) = 2x²+2 and g(x) = x² - 1 ,find (f- g)(x).
mestny [16]

Step-by-step explanation:

(F-g) (X)

= f(x) - g(x)

(2x² + 2 )-(x²-1) =

3x²+3

4 0
3 years ago
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