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2 years ago

Can someone answer these two problems??

Mathematics

1 answer:

skad [1K]2 years ago

4 0

9514 1404 393

Answer:

Step-by-step explanation:

The given equation is in slope-intercept form:

y = mx + b

where the slope is m = -3 and the y-intercept is b = +2.

So, the graph will have a slope of ...

"rise"/"run" = -3 = -3/1

and will cross the y-axis at y=2.

Graphs A and B cross the y-axis in the right place, but only Graph B has a negative "rise" a x increases.

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Find the value of x that make it true

lesantik [10]

Answer:

Step-by-step explanation:

1). 10 = $\frac{1+7x}{7+x}$

10(7 + x) = 1 + 7x

70 + 10x = 7x + 1

10x - 7x = 1 - 70

3x = -69

x = -23

2). 0.2 = $\frac{6+2x}{12+x}$

0.2(12 + x) = 6 + 2x

2.4 + 0.2x = 6 + 2x

2.4 - 6 = 2x - 0.2x

1.8x = -3.6

x = -2

3). 0.8 = $\frac{x}{x+0.5}$

0.8(x + 0.5) = x

0.8x + 0.4 = x

x - 0.8x = 0.4

0.2x = 0.4

x = 2

4). 3.5 = $\frac{4+2x}{0.5-x}$

3.5(0.5 - x) = 4 + 2x

1.75 - 3.5x = 4 + 2x

-3.5x - 2x = 4 - 1.75

-5.5x = 2.25

x = - $\frac{2.25}{5.5}$

x = - $\frac{9}{22}$

6 0

2 years ago

What is the place value of 9 in 46.934?

Inga [223]

The 9 is in the Tenths place

5 0

3 years ago

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Simplify the expression. 20 • 5–2 a) 25 b) –500 c) –200 d) 4/5

SCORPION-xisa [38]

Answer: D) 4/5

Hope this helps :)

8 0

2 years ago

How many solutions does the equation have? -3f + 3f = 0

Ulleksa [173]

Answer:

infinite solutions

Step-by-step explanation:

-3f + 3f = 0

0=0

This is always true so there are infinite solutions

7 0

3 years ago

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Convert 245 yards to inches.

yawa3891 [41]

Answer:

8820

Step-by-step explanation:

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3 years ago

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