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3 years ago

Help plz .................

Mathematics

2 answers:

Dima020 [189]3 years ago

8 0

Answer:

umm it's hardd kk it but I'll help

nexus9112 [7]3 years ago

5 0

Answer:

it's the 3rd one help ur self

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A 1. Choose the sign that correctly compares these fractions: 1/10 8/100.

Ghella [55]

Answer:

1/10 > 8/100

Step-by-step explanation:

because we have 0.1 against 0.08 therefore 1/10 is greater and the sign is >

4 0

3 years ago

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

Ksivusya [100]

the area A of the cross section of the column is $(81\pi )m^2$ .

Step-by-step explanation:

Here we have , building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18π, pi meters. We need to find What is the area A of the cross section of the column .Let's find out:

We know that , Circumference of circle = $2\pi r$

⇒ $Circumference = 2\pi r$

⇒ $18\pi= 2\pi r$

⇒ $\frac{18\pi}{2\pi }= \frac{2\pi r}{2\pi }$

⇒ $\frac{18\pi}{2\pi }=r$

⇒ $r=9$

We know that area of circle = $\pi r^2$

⇒ $Area= \pi r^2$

⇒ $Area= \pi 9^2$

⇒ $Area= 81\pi$

Therefore , the area A of the cross section of the column is $(81\pi )m^2$ .

3 0

3 years ago

The radius of a circle is 18 in. Find its circumference in terms of \piπ.

Ghella [55]

Hi!

circumference of a circle = $2\pi r$ .

$2\pi 18$

$36\pi$ $inches$

(if you use 3.14 as pi, then it would be 113.04 inches)

For more information, see:

brainly.com/question/15747260 (extremely good answer!)

brainly.com/question/12259848

3 0

2 years ago

How do I convert these improper fractions to mixed numbers: 29/4, 13/6, 73/9, 65/8, 17/2, 5/2, 25/4, 43/7, 29/4, 73/9, 19/3, 43/

slava [35]

Divide the numerator by the denominator
use the answer as the whole number
use the remainder as the numerator
keep the deniminator

the answers:
7 1/4
2 1/6
8 1/8
8 1/2
2 1/2
6 1/4
6 1/7
7 1/4 (same question)
8 1/8 (same question)
6 1/3
2 1/5
9 1/10
6 1/6

5 0

4 years ago

Read 2 more answers

Y-2=-3(x+4)2 in standard form

Pavlova-9 [17]

Answer:

The standard for would be y = -3x^2 - 24x - 46

Step-by-step explanation:

To get this to standard form, start by squaring the parenthesis.

y - 2 = -3(x + 4)^2

y - 2 = -3(x^2 + 8x + 16)

Now distribute the -3

y - 2 = -3x^2 - 24x - 48

Now add the 2 to both sides

y = -3x^2 - 24x - 46

4 0

3 years ago