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ELEN [110]
3 years ago
5

Homework 9.4 Equations and Word Problems

Mathematics
1 answer:
lubasha [3.4K]3 years ago
4 0

Answer:

idc

Step-by-step explanation:

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Which expression can be used to find the surface area of the following triangular prism? *picture of a triangular prism* Choose
KIM [24]

Answer:

A. 24+24+120+160+200

Step-by-step explanation:

Surface area of the triangular prism= addition of the area of each shape that forms the prism

There are two triangles

Area of a triangle=1/2*base*height

=1/2*8*6

=1/2*48

=24

Area of two triangles=24+24

There are 3 rectangles with different dimensions

Back rectangle=length×width

=20×6

=120

Bottom rectangle=length ×width

=20x8

=160

Top rectangle=length × width

=20×10

=200

Surface area =Area of two triangles + Back rectangle + Bottom rectangle + Top rectangle

=24+24+120+160+200

5 0
3 years ago
Read 2 more answers
A box has a volume of 546cm3 and a surface area of 422cm2. What are the Length, Width and Height?
Klio2033 [76]
We know that the formula for the volume of a box is:

V =lwh

Where:
l = length
w = width
h = height

The formula of the surface area of a box is:
SA=2(lw+lh+wh)

Based on the given we know the following:
546cm^{3} =lwh

and

422cm^{2}=2(lw+lh+wh)

If we factor out the given volume, you can come up with 3 numbers that will satisfy the surface area formula:

546=6*7*13

Let:
l = 6cm
w = 7cm
h = 13cm
     
Now let's try this on the surface area formula:
422cm^{2}=2(lw+lh+wh)
422cm^{2}=2((6cm*7cm)+(6cm*13cm)+(7cm*13cm))
422cm^{2}=2(42cm^{2}+79cm^{2}+91cm^{2})
422cm^{2}=2(211cm^{2})
422cm^{2}=422cm^{2}

The answer is then:
l = 6cm
w = 7cm
h = 13cm

Any order would be fine.
4 0
3 years ago
What is the answer to this
blagie [28]
The answer would be -7 n= -7 because a negative times a negative equals a postive
5 0
3 years ago
Read 2 more answers
SURFACE AREA HELP ASAP!!
Norma-Jean [14]

Answer:

Step-by-step explanation:

can you get a bigger picture pls

6 0
3 years ago
Read 2 more answers
Find the product of smallest natural number and the smallest whole number​
lapo4ka [179]
The smallest natural number is 1 and the smallest whole number is 0 so
1x0=0
i hope that’s right
7 0
1 year ago
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