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3 years ago

(-4,2) (2-3) midpoint

Mathematics

1 answer:

Sedbober [7]3 years ago

3 0

Answer:

(-1, -1/2)

Step-by-step explanation:

use the midpoint formula(x1+x2/2, y1+y2/2)

-4+2/2, 2+-3/2

-4+2=-2/2=-1

2+-3=-1/2

(-1, -1/2)

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Solve the equation. -4 (y - 2) = 12 y = ?

inna [77]

First you distribute what’s outside the parentheses (the -4)

-4•4= -4y
-4•-2= 8

New equation: -4y+8=12

Now you solve like a normal equation
12-8 is 4

New equation: -4y=4

Now divide

Answer:-1

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2 years ago

The bowl has a diameter of 10 inches. What is its radius?

Licemer1 [7]

5 because u divide it

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2 years ago

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Tyra buys 14 gallons of gas for $35. How could she figure out how much 1 gallon of gas cost

defon

Answer:

The cost of 1 gallon is $2.5

Step-by-step explanation:

Given

Cost of 14 gallons = $35

Required

Determine the cost of 1 gallon

From the given parameters, we have:

$14\ gallons = \$35$

Divide both sides by 14

$\frac{14\ gallons}{14} = \frac{\$35}{14}$

$1\ gallon = \frac{\$35}{14}$

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The cost of 1 gallon is $2.5

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3 years ago

Law of cosines.Anyone good in Trigonometry?

marin [14]

Answer:

$c=11.8\ units$

Step-by-step explanation:

we know that

The formula of law of cosines is equal to

$c^2=a^2+b^2-2(a)(b)cos(C)$

where

a, b and c are sides. C is the angle opposite side c

In this problem we have

$a=3\ units\\b=10\ units$

$C=120^o$

substitute the given values

$c^2=3^2+10^2-2(3)(10)cos(120^o)$

$c^2=109-(60)cos(120^o)$

$c^2=109-(60)(-0.5))$

$c^2=109+30$

$c^2=139$

$c=11.8\ units$

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2 years ago

HURRY PLEASE I DONT WANT TO FAIL

qwelly [4]

Answer: 62

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2 years ago

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