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3 years ago

Please Help Me With This One, Is This A Function?

Mathematics

1 answer:

natali 33 [55]3 years ago

6 0

Answer:

Step-by-step explanation:

It is a function because each Input value maps to one output value.

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Find the measure of angle B.

nataly862011 [7]

It could be 180 but then idk if it needs a picture because I don’t see it

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3 years ago

5. Write an expression to represent "Six more than the difference of a number and three."

ki77a [65]

N-3+6
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7 0

3 years ago

Find derivatives f(x)=x+1/x²+1

andrew-mc [135]

Answer:

-2/x^3+1 or negative two divided by x cubed plus one

3 0

3 years ago

"a u.S. 1-cent coin (a penny) has a diameter of 19 mm and a thickness of 1.5 mm". Assume the coin is made of pure copper, whose

choli [55]

the question is Calculate the value of the copper in the coin

Step 1

Find the volume of the coin

we know that

the volume of a cylinder is equal to

$V=\pi r^{2}h$

where

r is the radius of the coin

h is the thickness of the coin

in this problem we have

Diameter=19 mm=1.9 cm

r=D/2------> r=1.9/2=0.95 cm

h=1.5 mm=0.15 cm

substitute the values in the formula

$V=\pi*0.95^{2}*0.15=0.425\ cm^{3}$

Step 2

Find the mass of copper in the coin

we know that

the density is equal to

$Density=mass/volume$

Solve for the mass

$mass=Density*volume$

we have

$Density=8.9\ gr/cm^{3}\\Volume=0.425\ cm^{3}$

substitute in the formula

$mass=8.9*0.425=3.785\ gr$

Step 3

Find the cost

we know that

the market price of the copper is $2.15 per pound

1 pound=453.592 grams

convert gram to pounds

3.785 gr=3.785/453.592=0.0083 pounds

0.0083*$2.15=$0.018=$0.02

therefore

the answer is

$0.02

3 0

4 years ago

Help fill red and grey mark brainly

OverLord2011 [107]

Answer:

Step-by-step explanation:

#6. correct

#7. 3 3/4 - 1 7/8 = 1 7/8

#8. correct

#9. 3 3/8 + 3 3/4 = 7 1/8

#10. 19 - 16 7/8 = 2 1/8

All results in pounds.

8 0

3 years ago