Ask question

Ask question

All categories

2 years ago

5

a rectangular prism is 5 inches wide and has a volume of 30 cubic inches if the width of the rectangular prism is doubled what i

s the volume of the new rectangular prism and I need work to PLEASE HELP ME

1 answer:

Nimfa-mama [501]2 years ago

8 0

Volume = W*L*H
30 = 5*L*H old one
Volume = 2*5*L*H new one
Volume new one = 2*5*L*H =2*(5*L*H)=2*30=60
Answer is C

You might be interested in

Pls help pls pls pls.In a class of 50 students, 3/5 of the students study Maths, 3/10 of the students study English and rest stu

Zina [86]

Answer:

Step-by-step explanation:

No of students study math = 3/5 of 50 = 30

No of students study English = 3/10 of 50 = 15

Total = 30 + 15 = 45

Remaining students = 5

No of students study geography = 5

Fraction of geography to whole class = 5/45 = 9

3 0

3 years ago

For her presentation on the Wonders of the World, Mary baked a square pyramid-shaped cake as pictured below. The slant height of

mihalych1998 [28]

Answer:

$V=196in^3$

Step-by-step explanation:

The volume of a pyramid is:

$V=\frac{A_{b}h}{3}$

where $A_{b}$ is the area of the base and $h$ is the height (the perpendicular measurement between base and highest point, not the slant height)

Since the base is a square, the area is given by:

$A_{b}=l^2$

where $l$ is the length of the side: $l=8in$ , thus:

$A_{b}=(8in)^2\\A_{b}=64in^2$

Now we need to find the height, for this we use the right triangle that forms with half of a square side (8in/2 = 4in), the slant height (10in), and the height.

In this right triangle, the slant height is the hypotenuse, the leg 1 is the unknown height, and leg 2 is half of the square side.

Using pythagoras:

$hypotenuse^2=leg1^2+leg2^2$

substituting our values, and indicating that leg 1 is height h:

$(10in)^2=h^2+(4in)^2$

$100in^2=h^2+16in^2$

and solving for the height:

$h^2=100in^2-16in^2\\h^2=84in^2\\h=\sqrt{84in^2}\\ h=9.165in$

and finally we calculate the volume using this height and the area of the base:

$V=\frac{A_{b}h}{3}$

$V=\frac{(64in^2)(9.165in)}{3} \\V=195.5in^3$

rounding to the nearest cubic inch: $V=196in^3$

4 0

3 years ago

Which of the following is a radical equation???

MaRussiya [10]

Maybe D ??

Step by step explanation

4 0

2 years ago

What is this symbol called plz answer urgent

Svetlanka [38]

AB is congruent to AC that is ur Answer

5 0

2 years ago

Can you please solve 1 and 2 for me please? This doesn't even feel like math, just a stupid riddle.

kherson [118]

Answer:

1. Why does the graph not start at zero?

It doesn't start at zero because all ovens start at 350°(probably less, but normally 350°) and not zero degrees.

2. What does it mean when the graph flattens out?

When the graph flattens out, it means that the temperature doesn't increase nor decrease, but instead it remains the same.

6 0

3 years ago