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3 years ago

8. The ratio of the number of model

Mathematics

1 answer:

disa [49]3 years ago

7 0

Answer:

Step-by-step explanation:

36 divided by 3 times 4.

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Find the surface area of composite figure. Please help

Ivan

Answer:

The surface area of the composite figure is $410\ m^{2}$

Step-by-step explanation:

we know that

The surface area of the composite figure is equal to the surface area of the rectangular prism of the bottom plus the lateral area o the rectangular prism of the top

Step 1

Find the surface area of the rectangular prism of the bottom

The surface area is equal to

$SA=2B+Ph$

Find the area of the base B

$B=10*10=100\ m^{2}$

$P=4*10=40\ m$

$h=3\ m$

substitute

$SA=2(100)+40(3)=320\ m^{2}$

Step 2

Find the lateral area of the rectangular prism of the top

The lateral area is equal to

$LA=Ph$

$P=2*(4+5)=18\ m$

$h=5\ m$

substitute

$LA=18(5)=90\ m^{2}$

Step 3

Find the surface area of the composite figure

$320\ m^{2}+90\ m^{2}=410\ m^{2}$

8 0

2 years ago

6 bags of plaster do 33m2 how many m2 can be done with 5 bags

pav-90 [236]

<span>6 bags of plaster do 33m2
5 bags .........................?

33 * 5 / 6 = 27.5

answer: 27.5</span><span>m2</span>

8 0

3 years ago

Put these distances in order starting with the smallest.

coldgirl [10]

Answer:

139 km

159 km

193 km

823 km

832 km

495 km

4 0

2 years ago

Distinguish between rote and rational counting

sergejj [24]

Answer: There is a difference between rote counting and rational counting. Rote counting involves the memorization of numbers. Rational counting tells children "how many there are." For children to count rationally, they need to demonstrate one-to-one correspondence.

6 0

2 years ago

. Se desea construir un depósito de agua con forma cilíndrica de radio r y de altura 2r.

Alina [70]

Answer:

ummm what in english please

Step-by-step explanation:

8 0

2 years ago