I forgot how to do this-

Answer:

Answer: 8 (second choice)

Step-by-step explanation:

Area of a Circle

Given a circle of radius r, the area is calculated by the formula:

[tex]A=\pi\ r^2[/tex]

There are two circles in the diagram. The outer circle has a radius of r1=2x, thus its area is:

[tex]A_1=\pi\ (2x)^2[/tex]

The interior circle has a radius of r2=6 cm, thus its area is:

[tex]A_2=\pi\ 6^2=36\pi[/tex]

The shaded area is obtained by subtracting A1-A2:

[tex]A=\pi\ (2x)^2-36\pi[/tex]

The value of the shaded area is given as 220π cm2. Equating:

[tex]\pi\ (2x)^2-36\pi=220\pi[/tex]

Dividing by π:

[tex](2x)^2-36=220[/tex]

Adding 36:

[tex](2x)^2=220+36=256[/tex]

Taking square root:

[tex]2x=\sqrt{256}=16[/tex]

Dividing by 2:

x = 8 cm

Answer: 8 (second choice)

Answer:

x = -3/2 or x = 1

Step-by-step explanation:

Answer:

yes, they are parallel because their slopes are the same

Step-by-step explanation:

if you put each equation into slope-intercept form and compare slopes you can see whether they are parallel or not

2x + y = 14

y = -2x + 14

slope = -2

2y + 4x = 14

2y = -4x + 14

slope = -4/2, which simplifies to be -2

Answer:

His age is 11

Step-by-step explanation:

Answer: 6.25

Step-by-step explanation:

6•4•(6.25)= 150

Answer:

$264

Step-by-step explanation:

A 6% interest means that you have to pay 6% of the loan every period (which in this case is a year because it isn't stated anywhere). 6% of $2.200 is equal to $132, so for a loan of 2 years Elsa has to pay [tex]\$132 \cdot 2 = \$264[/tex], which is exactly what the question was asking for.

Answer: X=22

Step-by-step explanation:

Answer:

183.91

Step-by-step explanation:

Answer:

QR

Step-by-step explanation:

The question is just trying to see if you can read the order of the lines.

PQ is the first 2 letters of PQR so XY has to be the first 2 letters of XYZ

Answer

YZ is the second and third letters of xyz.

QR are the 2nd and 3rd letters of PQR

Answer:

The other diagonal can be anywhere so long as the slope is 5/8 and the endpoints are sqrt(89) distance apart.

I don't know the geometric theorems :( but I hope this first part is helpful

Answer:

Option 4.7% = 3,500 x 4.7% =$164.50 simple annual interest.

82.25 this is what Scott will pay in 6 months at simple interest.

Option 4.2% =3,500 x (1 +0.042/12)^6 =3,500 x 1.0035^6=$3,574.15.

3,500 =$74.15 this is what Scott will pay in 6 months at compounded interest.

The compound option is cheaper by: 74.15 =$8.10.

Answer: 4.75

Step-by-step explanation:

Step-by-step explanation:

step 1. let's call the balance A, the initial amount P, the yearly rate r, the number of compounds yearly n, and the time t.

step 2. A = P(1 + r/n)^(nt) (compounding equation)

step 3. A = 8500(1 + .0178/12)^((12)(10))

step 4. A = 8500(1.00148334)^120

step 5. A = $10,154.68.

Answer:

4x(x^4-7)

Step-by-step explanation:

Answer:

3 units  

Step-by-step explanation:

Answer:

14.163

Step-by-step explanation:

i do not now if that right but

Answer:

6[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Answer:

5/7X

Step-by-step explanation:

cancel Y and Z from both sides

get the HCF (highest common factor) between 20 and 28 which is 4

then divide both sides with 4

the final answer will be:

5/7X

Answer:

y = 4

x= 27

Step-by-step explanation:

boom roasted.

Answer:

1 and 3

Step-by-step explanation:

80 (mph) × 2 (hours) = 160 (miles)

60 (mph) × 2 (hours) = 120 (miles)

Answer:

The fraction that is halfway between 1/2 and 1 1/4 is:  5/8

Step-by-step explanation:

Given the fractions

1/2 and 1 1/4

In order to determine the fraction that is halfway between 1/2 and 1 1/4 first, we need to add the fractions and then divide the result by 2.

1)

Add the numbers

[tex]\frac{1}{2}\:+\:1\frac{1}{4}[/tex]

as  1 1/4 = 3/4, so

[tex]\frac{1}{2}\:+\:1\frac{1}{4}=\frac{1}{2}+\frac{3}{4}[/tex]  

Apply fraction rule:  [tex]\frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}[/tex]

             [tex]=\frac{2+3}{4}[/tex]

              [tex]=\frac{5}{4}[/tex]

2)

Divide by 2

[tex]\frac{5}{4}\div \:2[/tex]

Convert element to fraction:  [tex]2=\frac{2}{1}[/tex]

[tex]\frac{5}{4}\div 2=\frac{5}{4}\div \:\frac{2}{1}[/tex]

Apply fraction rule:  [tex]\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}[/tex]

         [tex]=\frac{5}{4}\times \frac{1}{2}[/tex]

Multiply fractions:  [tex]\frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}[/tex]

         [tex]=\frac{5\times \:1}{4\times \:2}[/tex]

         [tex]=\frac{5}{8}[/tex]

Conclusion:

Therefore, the fraction that is halfway between 1/2 and 1 1/4 is:  5/8

Answer:

Their beliefs over who should have succeeded the Prophet Muhammad is the key theological difference between the two. Sunnis also have a less elaborate religious hierarchy than Shiites have, and the two sects' interpretation of Islam's schools of law is different

Step-by-step explanation:

hope this helps     :)

Answer:

Shia people think that imam ali is the 1st khalifa or should be the first, because the profet Muhammed said that " I leave in you the two heavens, the Book of God, and my family" and after that the prophet rasied Imam Ali hand and said: " Whoever believe that i was the prophet should believe that Ali is the person in charge after I go meet Allah.

and so shia thinks that he is the person in charge after the prophet Muhammed.

Sunni people say that omar and abo baker are the people in charge. wich is so disrespecful to the prophet, because he said that Ali is incharge of the muslims by-step explanation:

the difference are shia believes that Imam Ali is the first khalifa and the sons of ali are the once incharge after him.

Answer:

C. 1

Step-by-step explanation:

There is no number before the [tex]x^2[/tex] term and the term is positive, so the coefficient is [tex]1[/tex] (which is the only number we can refrain from writing as a coefficient, hence the reasoning).

Answer:

Step-by-step explanation:

It's an investment that has a nominal interest rate of 2.7% compounded monthly

3. The investment has a nominal rate of 27% compounded 12 times per year

Given that,

Based on the above information, the information is as follows:

The above formula represent that the investment should have the nomibal rate of 27% that compounded 12 times per year.

Learn more: brainly.com/question/17429689

Answer:

[tex]\sqrt{3}[/tex]

Step-by-step explanation:

See attachment 1. This is the formula to use.

There are two numbers, so n=2. Plugging them into the formula, you get

[tex]\sqrt[2]{6*\frac{1}{2}} \\[/tex]

Now, putting a 2 in front just means we're finding the square root, so I'll get rid of it. Then, just do the calculation.

[tex]\sqrt{6*\frac{1}{2}}=\sqrt{\frac{6}{2}}=\sqrt{3}[/tex]

Answer:

√3

Step-by-step explanation:

To find the Geometric mean, multiply the values given, then take the square root.

x² = ab

x= √ab

It's a "central tendency" we are calculating.

This is different from the arithmetical mean which uses addition and division to find that average.

Answer:

-6

Step-by-step explanation:

3(2y+5)=-21

2y+5=-21/3

2y+5=-7

2y=-7-5

2y=-12

y=-12/2

y=-6

Answer:

I'm not sure I'm too lazy to do it lol

Step-by-step explanation:

Answer:

30 feet for each sloped beam

Step-by-step explanation: if you tak

the 8 away from the bord that is holding up the sloped beams it leaves you with 60 feet all together for both beams added up