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3 years ago

Solve y = mx + b for x

Mathematics

1 answer:

eimsori [14]3 years ago

8 0

Y=mx+b
-b -b
--------------
-by= mx
-------------
m m

-by
------
m

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A plane flew 193 km in 12 minutes. At a constant speed what was the speed of the air plane at km per hour?

Mrac [35]

Answer:

965 km per hour

Step-by-step explanation:

The total distance flown was 193km which was flown at constant speed and took 12 minutes. Dividing 193 by 12 gives us the km per minute

193/12 = 16.0833333

but this isn't the correct answer, this is in km per minute, and the question asked for km per hour. Since there are 60 minutes in an hour, multiply the answer by 60 to calculate how far the plane flew per hour.

16.083333333(60) = 965

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3 years ago

Nancy bought 360 tropical fish for a museum display. She bought 8 times as many gold fish as angel fish. How many of each type o

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I think the answer is C.

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3 years ago

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Help please help me with this.

boyakko [2]

$\pi r^2h$

$\pi \times 7^2 \times 7$

$\pi \times 7^3$

$\displaystyle 343\pi$

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3 years ago

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How do I find the measure of the interior angle?

nataly862011 [7]

Answer:

see the explanation

Step-by-step explanation:

we know that

The sum of the interior angles in any polygon is given by the formula

$S=(n-2)180^o$

where

n is the number of sides of the polygon

step 1

Find the sum of the interior angles in the given polygon

we have

$n=5\ sides$

substitute

$S=(5-2)180^o=540^o$

step 2

Find the value of x

we know that

$-3x+125+(45-x)+(-x+90)+80=540$

solve for x

$-5x+340=540$

$-5x=200\\x=-40$

step 3

Find the measure of each interior angle

substitute the value of x

Angle A

$-3(-40)=120^o$

Angle B

$80^o$

Angle C

$-(-40)+90=130^o$

Angle D

$45-(-40)=85^o$

Angle E

$125^o$

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3 years ago

Find f(5) for f (x)=1/4 (2)^x

Ber [7]

F(5) = 1/4(2)^5
f(5) = 1/4 (32)
f(5) = 8

answer
A. 8

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3 years ago

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