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kifflom [539]
3 years ago
14

If the slope of a line is 2 and it's y-intercept is 5, what is the equation of the line? A.x=2y+5 B. Y=5x+2 C. Y=2x+5 D. X=5y+2

Mathematics
1 answer:
frez [133]3 years ago
4 0
The answer is y=2x+5
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What is the base of a triangle with a height of 14 cm and an area of 42 square cm?
sasho [114]

Answer:

6cm

Step-by-step explanation:

area =  \frac{1}{2} \times  base \times  height \\ 42 =  \frac{1}{2}  \times b \times 14 \\ 42 =  \frac{14b}{2}  \\ 42 = 7b \\  \frac{42}{7}  =  \frac{7b}{7}  \\ base = 6cm

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em>

5 0
3 years ago
Read 2 more answers
Use the box method to distribute and simplify (3x – 1)(-5x + 1)
Softa [21]

Answer:

-15x^2 +8x -1

Step-by-step explanation:

(3x – 1)(-5x + 1)=

3x(-5x) + 3x(1) - 1(-5x) -1 =

-15x^2 +3x +5x -1 =

-15x^2 +8x -1

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4 0
3 years ago
Simplify 2/5 (40x – 75)
astraxan [27]

Answer:

16x-30

Step-by-step explanation:

distribute 2/5 by 40x and then 75

2/5(40x) - 2/5(75)

16x - 30

3 0
3 years ago
If 12 workers can dig a tunnel in 100 days, how long will it take 20 workers to dig the tunnel
Paraphin [41]

Answer:

60 days.

Step-by-step explanation:

This is  a proportion question. You compare two ratios. Unfortunately it is an inverse ratio.

12 = k/100                   Multiply both sides by 100

1200 = k

20 = k/x                       Multiply both sides by x

20x = k

20x = 1200                 Divide by 20

20x/20 = 1200/20

x = 60 days.  

An inverse proportion works by making a constant k. The  constant k makes the days shorter when the number of people increases. You should expect that. More people , less time.

3 0
2 years ago
No idea how to do this need help.
Arlecino [84]

Answer:

Hope that helps

Step-by-step explanation:

Brainliest would be much appreciated

3 0
2 years ago
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