The diameter of a circle is 20 centimeters. What is the radius?

Answer:

Step-by-step explanation:

x + 87 + 20 = 180           {Angle sum property of triangle}

          x + 107 = 180

                 x = 180 - 107

                x = 73

1) Exterior angle of a triangle equals the sum of opposite interior angles or remote angles.

2) x = 63 + 86

  x = 149

Answer:

slope is five.........

Answer: B) The result is a prime number

==================================================

Explanation:

Replace x with 5. Then use PEMDAS to simplify.

7x+6

7*5+6

35+6

41

The expression 7x+6 is equal to 41 when x = 5.

The value 41 is prime because its factors are only 1 and 41.

Answer:

B

I know this is a year later lol

Answer:

500

Step-by-step explanation:

First of, multiply all of the number by 10 to remove the decimal place ( this will make it less confusing)

So 102.3 x 10= 1023

4.7 x 10 = 47

You will have to round each of the numbers to 1 significant figure (sf) :

1023 round to 1 sf will be 1000

47 rounded to 1 sf will be 50

Then multiply these numbers:

1000 x 50 = 50000

Finally divide by 100 to get back the decimal places

(You divide by 100 because you multiplied by 10 twice, 10 x 10= 100)

You get 500

Answer: 4(5+2) or 4(2+5)

Step-by-step explanation:

8 = 2*2*2

20 = 2*2*5

4(5+2) = 20+8

Answer:

x = 20°

y = 19°

Step-by-step explanation:

The first two angles that are in the 2nd Quadrant:

2x - 3

3x - 7

The rule states that the two angles are complimentary angles that form an angle of 90°. So,

(2x - 3) + (3x - 7) = 90

2x - 3 + 3x - 7 = 90

2x + 3x - 3 - 7 = 90

5x - 10 = 90

5x = 90 + 10

5x = 100

x = 100 ÷ 5

x = 20

Another rule applies here, vertical angles are equivalent to each other.

So,

2x - 3 = 2y - 1

2(20) - 3 = 2y - 1

40 - 3 = 2y - 1

37 = 2y - 1

37 + 1 = 2y

38 = 2y

38 ÷ 2 = y

19 = y

Answer:

First, these angles are alternate interior angles.

[tex] 10x - 5 = 9x + 1 [/tex]

[tex] x = 6 [/tex]

Step-by-step explanation:

(10x - 5)° and (9x + 1)° are alternate interior angles. Thus, they are congruent to each other.

Thus, to find x, we will set each angle equal to the other.

[tex] 10x - 5 = 9x + 1 [/tex]

Solve for x. Collect like terms

[tex] 10x - 9x = 5 + 1 [/tex]

[tex] x = 6 [/tex]

Answer:

[tex]f(x+h)=x^2+2xh+h^2+2x+2h[/tex]

Option D is correct option.

Step-by-step explanation:

We are given: [tex]f(x)=x^2+2x[/tex]

We need to find f(x+h)

For finding f(x+h) we need to replace x by x+h

[tex]f(x+h)=(x+h)^2+2(x+h)\\We \ know \ (a+b)^2=a^2+2ab+b^2\\f(x+h)=x^2+2xh+h^2+2x+2h[/tex]

Finding f(x+h) we get:

[tex]f(x+h)=x^2+2xh+h^2+2x+2h[/tex]

Option D is correct option.

Answer:

A

Step-by-step explanation:

that's the right answer

Answer:

4/7

Step-by-step explanation:

Answer: Correct Answer is X 4/21

Step-by-step explanation: I got it right

15

Step-by-step explanation:

Answer:

ksdkksanJ

Step-by-step explanation:

Answer:

5.5

Step-by-step explanation:

√30, which will round to 5.5, because √30*√30=30.

n for number

n x n = 30

n =

we have multiple options for n

exact forms:

√30

-√30

exact decimal forms:

5.47722557...

-5.47722557...

rounded to the nearest tenth:

i THINK:

5.5

-5.5

5.4

-5.4

sorry if im wrong with the rounding, hope this helps though :)

Answer:

I think that it would be d because 9 is 3/4 of 12 and 45 is 3/4 of 60

Answer:

For all the people who don't understand that other guys answer it is graph W

Step-by-step explanation:

Answer:

2.05

Step-by-step explanation:

so first you want to find 30% of 1.60, you get 0.45.

then you add 0.45 to 1.60, and get your answer at 2.05.

hope that’s helps!

Answer:

2.05

Step-by-step explanation:

Answer:

15.875 < r

Step-by-step explanation:

-9 < 8(r - 17) - 1

-9 < 8r - 137

+137    +137

------------------

128 < 8r

/8       /8

-------------

16 < r

Answer:

r>16

Step-by-step explanation:

1.)  Add 11 to both sides.

-9+1<8(r-17)−9+1<8(r−17)

2.) Simplify  -9+1−9+1  to  -8−8.

-8<8(r-17)−8<8(r−17)

3.) Divide both sides by 88.

-1<r-17−1<r−17

4.) Add 1717 to both sides.

-1+17<r−1+17<r

5.) Simplify  -1+17−1+17  to  16.

16<r16<r

6.) Switch sides.

r>16r

Answer:

6 girls were there are first

Step-by-step explanation:

use trial and error. divide 1200 by a random number like 10, and see how much they each had to pay. If we guessed 10, then each girl would hypothetically pay 120 pounds. If four girls left, then 1200/6 would be 200 pounds. there was only a 60 pound increase here, not a 400 pound one.

I checked 1200/6 which equals 200 pounds per girl. If 4 girls left, then it would be 600 pounds for the 2 remaining girls. the rent increased from 200 to 600 which is a 400 pound increase.

Answer:

The probability that X is greater than Y is 0.5754.

Step-by-step explanation:

It is provided that,

[tex]X\sim N(184.09, 39.37)\\\\Y\sim N(171.93, 50.88)[/tex]

It is also provided that X and Y are independent.

We need to compute the value of:

P (X > Y) = P (X - Y > 0)

Compute the mean and standard deviation of (X - Y) as follows:

[tex]E(X-Y)=E(X)-E(Y)=184.09-171.93=12.16\\\\SD(X-Y)=\sqrt{V(X-Y)}=\sqrt{V(X)+V(Y)}=\sqrt{39.37^{2}+50.88^{2}}=64.33[/tex]

Compute the the value of P (X > Y) as follows:

[tex]P(X>Y)=P(X-Y>0)\\\\=P(\frac{(X-Y)-E(X-Y)}{SD(X-Y)}>\frac{0-12.16}{64.33})\\\\=P(Z>-0.19)\\\\=P(Z<0.19)\\\\=0.57535\\\\\approx 0.5754[/tex]

Thus, the probability that X is greater than Y is 0.5754.

Answer:

Ur answer is 7negative6

Answer:

1

Step-by-step explanation:

13x-12=7x-6

Answer:

please mark me as brainlist

Step-by-step explanation:

-3.5,-1/4,2,1/3

Answer:

Her weekly allowance is $30

Step-by-step explanation:

Answer:

The answer is

[tex] \huge y = - 2x[/tex]

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

From the question we have

[tex]y + 4 = - 2(x - 2) \\ y + 4 = - 2x + 4 \\ y = - 2x + 4 - 4[/tex]

We have the final answer as

Hope this helps you

Answer:

2. 8n. 8n. 8n. 8n

Step-by-step explanation:

[tex]2 {(8n)}^{4} = 2. 8n. 8n. 8n. 8n[/tex]

Equivalent expressions are expressions with equal value.

The equivalent expression of [tex]\mathbf{2\cdot(8n)^4}[/tex] is [tex]\mathbf{2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex]

The expression is given as:

[tex]\mathbf{2\cdot(8n)^4}[/tex]

Apply law of indices

[tex]\mathbf{2\cdot(8n)^4 = 2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex]

The above equation means that:

[tex]\mathbf{2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex] is equivalent to [tex]\mathbf{2\cdot(8n)^4}[/tex]

Hence, the correct option is (d) [tex]\mathbf{2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex]

Read more about equivalent expressions at:

https://brainly.com/question/24242989

Answer:

1:n

12:2

12÷12:2÷12

Answer ==

1:1

6

Answer: is, 1:1/6 , a fully simplified fraction.

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

here, we have,

1:n, the form of expression.

given that,

=>12:2

=>12÷12:2÷12

=>1:1/6

Answer is, 1:1/6.

To learn more on ratio click:

brainly.com/question/13419413

#SPJ2

Answer:

Y = 3/5x + 2

Step-by-step explanation:

Answer:

[tex]y=\frac{3}{5} x+2[/tex]

Answer:

Place houses on 48 of the 100 squares to represent 48/100 or 48% houses.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Step one:

given

number of shirts= 500

cost of all the shirts= $12000

unit cost of shirt= 12000/500

                          =$24

the selling price = $30

the profit per shirt= selling price-cost price

30-24=$6

Required

% mark up

% mark up=( profit/cost price)*100

% mark up=( 6/24)*100

% mark up=0.25*100

% mark up=25%

Hence the % mark up is 25%

Answer:

Step-by-step explanation:

Amount after a month:

1. ........................

2. ........................