3 years ago

Answer the question MATH

Mathematics

1 answer:

stiv31 [10]3 years ago

6 0

Answer:

C, 108

Step-by-step explanation:

rectangles

8x3 = 24

8x4 = 32

8x5 = 40

triangles

3x4 = 12

you dont really have to divide by 2 since theres two triangles

24+32+40+12 = 108

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Find the equation in standard form of the line passing through the points 3,-4 and 5,1

aliina [53]

Answer:

5x - 2y - 23 = 0

Step-by-step explanation:

Line is passing through the points $(3,\:-4)= (x_1, \:y_1) \: \&\: (5,\: 1)= (x_2,\:y_2)$

Equation of line in two point form is given as:

$\frac{y -y_1 }{y_1 -y_2 } = \frac{x -x_1 }{x_1 -x_2 } \\ \\ \therefore \: \frac{y -( - 4) }{ - 4 -1} = \frac{x -3 }{3 -5 } \\ \\ \therefore \:\frac{y + 4 }{ - 5} = \frac{x -3 }{ - 2 } \\ \\ \therefore \: \frac{y + 4 }{ 5} = \frac{x -3 }{ 2 } \\ \\ \therefore \: 2(y + 4) = 5(x - 3) \\ \therefore \: 2y + 8 = 5x - 15 \\ \therefore \: 5x - 15 - 2y - 8 = 0 \\ \red{ \boxed{ \bold{\therefore \: 5x - 2y - 23 = 0}}} \\ is \: the \: required \: equation \: of \: line \: in \: \\ standard \: form.$

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2 years ago

This year the winner of New York Marathon ran the 8 kilometer event in 24 hours. What is the runner’s unit rate?

ValentinkaMS [17]

3 because 24 divide by 8 is 3

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2 years ago

Evaluate the expression. (26÷13)⋅(−7)+14−4

Bas_tet [7]

Follow pemdas. Evaluate operations in parentheses first.
2*(-7)+14-4

Then multiply
-14+14-4

Then add and subtract from left to right
-14+14=0
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Final answer: -4

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