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3 years ago

10

Emily is entering a bicycle race for charity. Her mother pledges $0.70 for every 0.75 mile she bikes. If Emily bikes 21 miles, h

ow much will her mother donate?

1 answer:

lara [203]3 years ago

6 0

The answer might be 19.60

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If a line segment contains one endpoint at (2,3) and has a midpoint of (-2,6) what is the second endpoint of the line segment

olchik [2.2K]

Answer:

Step-by-step explanation:

The coordinates of the midpoint M are the average of the coordinates of the two endpoints:

$M_x = \dfrac{2+x}{2},\quad M_y = \dfrac{3+y}{2}$

Plug the known coordinates of the midpoint:

$-2 = \dfrac{2+x}{2},\quad 6 = \dfrac{3+y}{2}$

Solve for x and y:

$-4 = 2+x,\quad 12 = 3+y$

$x=-6,\quad y = 9$

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3 years ago

Choose the correct simplification of (2x3 + x2 − 4x) − (9x3 − 3x2).

Mrrafil [7]

You start off by multiplying the second bracket by -1 to get rid of the bracket.
So,
(2x3 + x2 - 4x) - 9x3 + 3x2 =
2x3 +x2 - 4x - 9x3 + 3x2 =
(2x3 - 9x3) + (x2 + 3x2) - 4x =
-7x3 + 4x2 - 4x

7 0

3 years ago

Read 2 more answers

A soccer team eats lunch at a restaurant on the way to the tournament the total cost of the food was $85.25 before 6% tax and 18

mash [69]

6/100× $85.25

x=$511.50 divided by 100

x=$5.1150 Or $5.12

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3 years ago

Solve problems <br>5 1/2×3 1/3

makvit [3.9K]

5 1/2 X 3 1/3=18 1/3

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3 years ago

Find the product.<br><br> (8 − 3i)(5 − 2i)

Delicious77 [7]

Answer:

34 - 31i

Step-by-step explanation:

first, distribute to get 40 - 16i - 15i + 6i^2. i^2 = -1 so 6(-1) is -6. simplify to get 34 -31i

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3 years ago