3 years ago

Lets simplify

Mathematics

1 answer:

Artist 52 [7]3 years ago

3 0

Answer:

wait for another one

I am doing.

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Plz help fast!!!!!!

Leokris [45]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18 \pi18π18, pi

Whitepunk [10]

Answer:

$A=81\pi $ m^2$

Step-by-step explanation:

Circumference of the column $=18\pi $ meters$

Circumference of a circle $=2\pi r$

Therefore:

$2\pi r =18\pi $ meters\\2r=18\\r=18 \div 2\\$Radius, r=9 meters$

Area of a Circle $=\pi r^2$

Since radius of the cross section of the column =9 meters

Area of the cross section of the column

$=\pi *9^2\\=81\pi $ m^2$

5 0

3 years ago

The tape diagram below represents 100\%100%100, percent.

elena-s [515]

Answer:

75 %

Step-by-step explanation:

100/4=25

25x3=75

6 0

2 years ago

Helppp meeee please

IrinaK [193]

Answer:

True.

Step-by-step explanation:

It would be better if it was clearer, but I stand by my answer. "True".

6 0

2 years ago

The life expectancy of a circulating coin is 30 years. The life expectancy of a circulating dollar bill is only

Afina-wow [57]

Life expectancy of dollar bill = d
life expectancy of coin = c

d = 1/20 c

substitute value in for c (30)

d = 1/20 * 30
d = 30/20
d = 1.5

life expectancy of a dollar bill = 1.5 years

3 0

2 years ago