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3 years ago

Please help asap!!! Will give brainlist :)

Mathematics

1 answer:

Scilla [17]3 years ago

3 0

Answer:

744 cubic inches

Step-by-step explanation:

Volume of Styrofoam= volume of big box -volume of glass box

=(10*10*15)-(9*7*12)

=1500-756

=744 cubic inches

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What is the volume of a cylinder of radius 4cm and length of 8cm. famula π=3.14

jarptica [38.1K]

Answer:

401.92 cm^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h where r is the radius and h is the height

V = (3.14) (4)^2 *8

V= 401.92

7 0

3 years ago

Vernice did not want to tell her age, so when she was asked, her mother answered for her. Her mother said, “I am double her age

Kisachek [45]

Answer:

Step-by-step explanation:

Let Vernice age be x

Her mother's age be 2x+10

10=1\2(2x+10) = 10×2=2x+10

20=2x+10

20-10=2x

10=2x

x=5

4 0

2 years ago

Solve x^2-y^2+x+1+2yx+y=0

Harlamova29_29 [7]

Combine like terms and use inverse operations

4 0

2 years ago

Simplify -4(-9p + -3) +2(-2p + 6)

zalisa [80]

Answer:32p+24

Step-by-step explanation:

-4(-9p + -3) +2(-2p + 6)

36p+12-4p+12

32p+24

Hope it helped you

4 0

2 years ago

Anna wants to buy a car in two years and wants to have $10,000 for the purchase. How much will Anna need to deposit today in an

Brut [27]

Answer:

Anna will need to deposit $\$9,050.25$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=2\ years\\A=\$10,000\\ r=0.05\\n=12$

substitute in the formula above and solve for P

$10,000=P(1+\frac{0.05}{12})^{12*2}$

$10,000=P(1.0042)^{24}$

$P=10,000/(1.0042)^{24}$

$P=\$9,050.25$

8 0

2 years ago