What is the volume of this composite solid?
A)588in3

B)784in3

C)915in3

D)980in3

Question

What is the volume of this composite solid? 
A)588in3

B)784in3

C)915in3

D)980in3

anonymous · Answer

Plz help I need to finish my homework

littlebird · Answer

You need to give more information about the solid.

anonymous · Answer

ok hold on.

anonymous · Answer

attachment

anonymous · Answer

here you go Littlebird

anonymous · Answer

are you  still workin it out.Im not trying to rush u or anything just asking

littlebird · Answer

The shape is made of three different 3D shapes. The cubes would use the formula Volume= basexwidthxheight. For the triangle you would find the surface area of one of its triangular sides and multiply that by its height.

mathstudent55 · Answer

This is easier than you think.
There are two prisms that are 8 in. x 7 in.  x 7 in.
And one piece that is half of a prism 8 in. x 7 in. x 7 in.

anonymous · Answer

ok thx. can you walk me through it

anonymous · Answer

ohh never mind thank you littlebird and mathstudent55:)

littlebird · Answer

Ok :)

anonymous · Answer

Can you guys help me with another one plz. here it is:

Which of the formulas below would be used to calculate the volume of the composite figure below? 

A.V =1/2BH t h +/wh
B. V =/wh +s3
C. V= pier 2h +1/2bh t h
D. V = 1/3/wh + /wh

mathstudent55 · Answer

V = LWH

V =  8 in. * 7 in. * 7 in. + 8 in. * 7 in. * 7 in. +  (8 in. * 7 in. * 7 in.)/2
V = 980 in^3

anonymous · Answer

thx can you guys help me with the other question tht I posted plz

mathstudent55 · Answer

The upper part is the area of a triangle times a height.
The lower part is a length times a width times a height.

littlebird · Answer

Whichever answer has both the formula for a rectangular prism and a triangle shape is the one.

anonymous · Answer

ok thank yoy so much for helping :) Have a nice afternoon

mathstudent55 · Answer

You're welcome.
Thanks, you too.

anonymous · Answer

which letter is it

anonymous · Answer

mathstudent55 which letter is it

mathstudent55 · Answer

I don't understand your choices.
What does pier mean?
What is /wh?

anonymous · Answer

pier means  the pie sign and r means radius of circle.
lwh / length of prism,width of prism and hieght of prism

mathstudent55 · Answer

Ok. Got it.
There is no circle here, so the answer has no pi in it.
Also there is a triangle here, so the answer must have (1/2)bh.

anonymous · Answer

ok thx.

mathstudent55 · Answer

wlcm