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3 years ago

Enter the slope of the line through the points (5, 2) and (-3, -7). *

Mathematics

1 answer:

hichkok12 [17]3 years ago

5 0

Answer:

m= 9/8

Step-by-step explanation:

(5, 2) and (-3, -7)

Slope:

m=(y2-y1)/(x2-x1)

m=(-7-2)/(-3-5)

m=(-9)/(-8)

m=9/8

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A train travels 63 kilometers in 2 hours, and then 87 kilometers in 2 hours. What is its average speed?

Lesechka [4]

87 - 63 = 14
14/2 = 7
7kmph

6 0

2 years ago

Read 2 more answers

Make a the subject of: v = u + at

zmey [24]

Answer:

$a = \frac{v - u}{t} \:$

Step-by-step explanation:

$v = u + at$

$at = v - u$

$a = \frac{v - u}{t}$

8 0

3 years ago

What is the length of b

oksian1 [2.3K]

Answer:

b = 24

Step-by-step explanation:

Concepts

The Pythagorean Theorem states that the sum of the squares of the two other sides on a right triangle is equal to hypotenuse (longest side) squared. It can be represented by the equation $a^2+b^2=c^2$ . We can also use this formula to solve for the other two legs in the right triangle.

Application

In this case, we're asked to find the length of b in the right triangle, given c as 26 and a as 10. Now, we just apply the formula and solve for b.

Solution

Step 1: Set up equation and simplify.

$10^2+b^2=26^2$
$100+b^2=676$

Step 2: Subtract 100 from both sides.

$100+b^2-100=676-100$
$b^2=576$

Step 3: Take square root of both sides.

$\sqrt{b^2} =\sqrt{576}$
$b=24$

Therefore, b = 24.

4 0

1 year ago

Read 2 more answers

(5 + 42) ÷ 3 ● 6 I need the answer and Steps Plz

Alex

47/3 x6
Reduce
47x2
=
94

7 1

3 years ago

Please help thank you.

alina1380 [7]

Hello!

To solve this we use the equation sin60 = (s/2) / (d/2)

s is a side of the triangle
d is the diameter

sin60 = s/d

$\sqrt{3/4} =s/d$

$d=s/ \sqrt{3/4}$

$d = s \sqrt{4/3}$

$d = 2s/ \sqrt{3}$

put 6 in for s

$d=12/ \sqrt{3}$

$d = \sqrt{48}$

d = 6.9

The answer is C) 6.9

Hope this helps!

5 0

3 years ago