4 years ago

Please help me I really need help and its do tomorrow

Mathematics

1 answer:

LUCKY_DIMON [66]4 years ago

7 0

Yhu can make a triangle out of all of them

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What is the exact area of a circle whose radius is 9 yd? Enter your answer in the box. Express your answer in terms of

atroni [7]

Answer:

$81\pi$

Step-by-step explanation:

Area = pi*r^2

Area = pi*9^2

Area = $81\pi$

6 0

3 years ago

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X + 8y = 18 and — 5x + 3y = -4

atroni [7]

X+8y=18
-5x+3y=-4

Multiply the first equation by 5
Add the two equations together

5x+40y=90
-5x+3y=-4
43y=86
Y=2

Plug y into one equation to find x
X+16=18
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3 years ago

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If ab= 1 , bc = -9, c =-b and c < -a, what is the value a + b ?

MaRussiya [10]

1/3+3

Ab=1
-b^²=-9
B=3
A=1/3
a+b=1/3+3

Mark brainliest please

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3 years ago

Which of the k values are solutions to the following equation?<br> k2 = 0.49

madam [21]

C and D bc +-0.7 is the answer
but because there no answer which contains both i think u should mark E

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3 years ago

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Scarlett is playing a video game. She spends 900 minerals to create 18 workers. Each worker costs the same number of minerals.

Crazy boy [7]

It's directly proportional, so
m=kw

Find the value of k
900=k(18)
k= 50

Answer: m=50w

6 0

4 years ago

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