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3 years ago

CS Algebra

Mathematics

1 answer:

CaHeK987 [17]3 years ago

4 0

Answer:

Hope this helps :)

Step-by-step explanation:

8(x - 2) = 2x + 8

y+9 = -2(y + 1)

value of x in 8(x - 2) = 2x + 8

x=4

substitue

y+9=−2(y+1)

value of y y+9=−2(y+1)

y= - 11/3 or 3.66...

x=4

y=4 (I rounded 3.66)

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Write an equation that is parallel to line y=x-5 through (1, -2)

Gnesinka [82]

Answer:

y = x - 3

Step-by-step explanation:

y = mx + b

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y=1*x + b

To find b, we have the point (1, -2)

-2 = 1 +b

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Mr.Richardson is a sales representative for an electronics store. Each month, he receives a salary of $1800 plus a 6% commission

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Answer:

Step-by-step explanation:

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3 years ago

The yoga instructor earns$25 per class and $10 per student that shows up. They want to earn more than $385 teaching 6 classes th

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2 years ago

Read 2 more answers

Help me solve for the right triangle

AleksAgata [21]

Answers:

B = 50

a = 10.9

c = 17.0

================================================

Explanation:

This is a right triangle, so the acute angles are complementary, meaning they add to 90

B+40 = 90

B+40-40 = 90-40

B = 50

Also, because this is a right triangle, we can use trig ratios to compute the missing sides

tan(angle) = opposite/adjacent

tan(40) = a/13

a = 13*tan(40)

a = 10.908

a = 10.9

cos(angle) = adjacent/hypotenuse

cos(40) = 13/c

c*cos(40) = 13

c = 13/cos(40)

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note: make sure your calculator is in degree mode

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3 years ago

Find the area of a triangle whose sides are 5 m, 6 m and 9m,( use root 2 =-1.41 m)

dlinn [17]

The area of the triangle is 14.1 square meters

<h3>How to determine the triangle area?</h3>

The side lengths are given as:

5m, 6m and 9m

Calculate the semi-perimeter (s) using

s = (5 + 6 + 9)/2

Evaluate

s = 10

The area is then calculated as:

$Area = \sqrt{s(s -a)(s-b)(s-c)$

This gives

$Area = \sqrt{10 * (10 -5)(10-6)(10-9)$

Evaluate the products

$Area = \sqrt{200$

Evaluate the exponent

Area = 14.1

Hence, the area of the triangle is 14.1 square meters