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3 years ago

Om

Mathematics

1 answer:

Yuki888 [10]3 years ago

3 0

Answer:

Radius: 8.5 inches

Area ≈ 226.98

Circumference ≈ 53.42

Step-by-step explanation:

2πr = formula for circumference of a circle

πr² = formula for area of a circle

radius of a circle = (1/2)d

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IS IT CORRECT ? I'LL MARK YOU BRAINLIST (i would appreciate it if u show with steps )

stepan [7]

Answer:

x=7

Step-by-step explanation:

3x+1=4x-6

take the x's in one side and the normal numbers on the other side.

3x-4x= -6-1

-x= -7

the substraction signs are crossed out, therefore

ans: x=7

3 0

3 years ago

Read 2 more answers

Write a number that rounds to 2.3 when rounded to the nearest hundredth and when rounded to the nearest tenth, but does not roun

tatuchka [14]

Answer:

2.3011

Step-by-step explanation:

This is because if you round this to the nearest tenth, the digit is 0 so it stays the same. When you round to the nearest hundredth, you would look at the 1 in the thousandth place and know that it is less than 5 so you would round down to 2.3. When you round to the nearest thousandth place, you would look at the very last number, which is less than 5, round down to 2.301 and realize that it is not equivalent to 2.3 :) I hope this helps

3 0

3 years ago

Read 2 more answers

Triangle A has an area equal to one-third the area of Triangle B. Triangle A has an area of 3 1/2 square meters.

attashe74 [19]

Answers:

A. B 1/3 represents the area of triangle B

B. Triangle B area = 21/2 m² or 10 1/2 m² or 10.5 m²

Step-by-step explanation:

Ok, we have two triangles measured in square meters (m²)

∆ a = 1/3 b and ∆ b = 3 1/2

Since these two areas have something in common (symbol a) we can consider they are almost the same, so we put them like this:

∆ a => 1/3 b = 3 1/2 <= ∆ b

Now that we know we can move some values. first we are gonna multiply the mixed fraction (3 1/2) to make it a regular fraction. As 3 is a whole, we can also write it on the following way:

$\frac{3}{1} +\frac{1}{2}$

We add these fractions:

$\frac{3}{1} +\frac{1}{2} = \frac{(3x2)+(1x1)}{1x2} =\frac{6+1}{2} =\frac{7}{2}$

The equation with this part solved is:

$\frac{1}{3} b=\frac{7}{2}$

Since the 1/3 is multiplying, it goes to the other side dividing the number on the right:

 $b=(\frac{7}{2} )/(\frac{1}{3} )$ 

And then, we can solve the rest by inverting the second fraction ( $\frac{1}{3}$ ) and multiplying it by the first one:

 $b=\frac{7}{2} / \frac{1}{3} \\$ 

 $b=\frac{7}{2} x \frac{3}{1} =\frac{7x3}{2x1} =\frac{21}{2}$ 

And that's it. Let me know if you have any doubts :D

5 0

3 years ago

Last year the schools newspaper so if full page ad for $16.50 each of H half page is $9.60 each day school they plan to increase

erica [24]

Question isn't well formatted, however. From what can be gathered form the question :

Options are given

Answer:

4(1.5 * 16.50) + (1.5 * 9.60)

$113.40

Step-by-step explanation:

Last year:

Cost of full page ad = $16.50

Cost of half page ad = $9.60

50% increase in ad price this year :

Price, this year :

Full page = 1.50 * 16. 50 = $24.75

Half page = 1.50 * $9.60 = $14.4

Expression :

4(1.5 * 16.50) + (1.5 * 9.60)

Cost of a 4 and 1/2 page ad :

Full page = 4 * $24.75 = $99

Half page = 1 * $14.4 = $14.40

Total cost = $(99 + 14.40) = $113.40

8 0

3 years ago

CAN ANYONE HELP ME ANSWER THIS PLEASE

Sergio039 [100]

Answer:

3/10 * 3/10 = 9/100

Step-by-step explanation:

First chance to draw pink is 3 out of 10. replace the marble then I have another 3 out of 10 chance.

4 0

3 years ago