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4 years ago

What is n - 8 = -3 because i cannot seem to figure it out

Mathematics

1 answer:

4vir4ik [10]4 years ago

5 0

Answer:n=5

Step-by-step explanation:

+8 to both sides to remove the eight -3+8=five the only things left are n and 5 so n=5

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3) What is an equation for the line that passes through the coordinates (-1.2) and (7,6) ?

OLEGan [10]

Answer:

$y=\frac{1}{2} x+\frac{5}{2}$

Step-by-step explanation:

First find the slope using the slope using the given points. Remember that the slope is the change in y over the change in x.

$\frac{6-2}{7- (-1)}=\frac{4}{8}=\frac{1}{2}$

So now we have the equation $y=\frac{1}{2} x+b$ , and we need to find out what b is. We can do this by pointing a point (either one, but I'll use -1,2) into the equation

$2=\frac{1}{2}(-1)+b$

Rearrange the equation so it equals b

$\frac{5}{2}=b$

Put it together and that's the final equation!

$y=\frac{1}{2} x+\frac{5}{2}$

7 0

3 years ago

Please help! What is the answer?

telo118 [61]

Answer: 6.4cm

Step-by-step explanation:

The area of a trapezoid is given as:

= 1/2(a + b)h

We then slot the given values into the formula. This will be:

1/2(15.8 + b) × 7.3 = 81.03.

7.3(15.8 + b)= 81.03 × 2

7.3(15.8 + b) = 162.06

115.34 + 7.3b = 162.06

7.3b = 162.06 - 115.34

7.3b = 46.72

b = 46.72/7.3

b = 6.4

Therefore, the answer is 6.4cm.

5 0

3 years ago

Please help me do this problem.

Aleksandr-060686 [28]

Sorry...

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4,10,44 and 19 :)

6 0

3 years ago

Bill paid $35.99 in tax on a laptop that cost $449.99 about what percent sales tax did bill pay

Elenna [48]

Answer:

Step-by-step explanation:

8 0

3 years ago

Find the area bounded by y=ln x, x=2, x=4 and the x-axis.

Advocard [28]

4 sq.units

area of a rectangle = length × breadth

length = 4units

breadth = 1units

A = l × b

= 4 × 1

= 4 sq.units

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8 0

4 years ago