work out the area of this semi circle

Answers

Answer 1

Answer:

39.27

Step-by-step explanation:

The area of a semi-circle is pi times the radius squared divided by 2. So basically standard area of a circle formula (pi times the radius squared) but then you add in the extra step of dividing it by 2.

The formula looks like this:

π × r² ÷ 2

The radius is half the diameter of the circle. So basically think of it as a line to the middle of the circle. Our diameter is 10, (the diameter is the entire length of the circle. It gives us this already. If you need diameter and only have the radius add the radius together twice or multiply it by 2 to get the diameter. Fun fact..?)

and it tells us to substitute pi for 3.142.

So, plugging our numbers in we get:

3.142 x 5^2 ÷ 2 = 39.275.

Cut out the 3rd decimal place (5) as it tells us to only include the first 2 decimal places, and we finally end up with 39.27.

Hope this helps and have a nice day!

Related Questions

.prove that cos (90-A).sinA + sin(90 - A).cosA = 1

Answers

Answer:

See Explanation

Step-by-step explanation:

[tex]cos (90-A).sinA + sin(90 - A).cosA = 1 \\ \\ LHS = cos (90-A).sinA + sin(90 - A).cosA \\ \\ = sinA.sinA + cosA.cosA\\ \\ = sin ^{2} A + cos^{2} A \\ \\ = 1 \\ \\=RHS\\\\ reason \\ cos (90- \theta) = sin \theta \\ sin (90- \theta) = cos \theta \\ sin ^{2} \theta + cos^{2} \theta = 1 \\ \\ thus \: proved \\ [/tex]

PLEASEEEE HELP ME WHAT IS THE SLOPE OF THE LINE AN Y INTERCEPT PLS HELP ME

Answers

D................................l

Is anybody on here good at Advanced Computer Science?

Answers

Answer:

Step-by-step explanation:

Answer:

Ya what's up??

Step-by-step explanation:

pls help and thx
WILL GIVE BRAINLIEST

Answers

Answer:

-20

-7

Step-by-step explanation:

0 x any number = 0

4(-5) = -20

126/(-18) = -7

Answer:

1. 0

2. -20

3. -7

Step-by-step explanation:

1. 0 times anything is equal to nothing times something.

So, the first one is 0.

2. For 4 x -5, you can just do 4 x 5 x -1, which equals 20 x -1, whixh equals -20.

3. Remember, a negative times a negative = a positive. So, the number must be negative. Just do 126 / 18 x -1, which equals -7.

Hope this helps!!

State the relationship between the graphs of f(x) and g(x).
f (x) = StartFraction 1 Over x EndFraction, g (x) = StartFraction 1 Over x cubed EndFraction
a.
g is closer to the x-axis, and f is closer to the y-axis.
b.
g is symmetric about the y-axis, and f is symmetric about the x-axis.
c.
g is closer to the y-axis, and f is closer to the x-axis.
d.
g is symmetric about the y-axis, and f is symmetric about the origin.

Answers

Answer:

D is a Answer

Step-by-step explanation:

Answer:

its d, trust me

Step-by-step explanation:

Jing just got a new job. She started at a pay rate of $12.50 per hour and will get a $0.50 raise each year. Max started a job where is salary is found by the equation y=x+10, where x is the number of years. What is the initial value for Jing?

Answers

Answer:

initial value for Jing is $12.50.

Step-by-step explanation:

It is given that Jing started at a pay rate of $12.50 per hour and will get $0.50 per year. So, 0.50 is slope and y intercept is 12.50 for this equation.

The y intercept represents the initial value for the Jing.

Help! i don't understand :/

Answers

Answer:

Option C

Step-by-step explanation:

Given inequality is,

-3(2x - 4) ≤ 7(3 - x)

Solve the given inequality further,

-6x + 12 ≤ 21 - 7x

(-6x + 12) + 7x ≤ (21 - 7x) + 7x

x + 12 ≤ 21

(x + 12) - 12 ≤ 21 - 12

x ≤ 9 Or {x real | x ≤ 9}

Therefore, Option C will be the correct option.

Answer:

this is your answer look it once

2/3 divided by 1/4
as a fraction! HURRY!!!

Answers

Answer:

2 2/3

Step-by-step explanation:

The quotient of two fractions is [tex]2\frac{2}{3}[/tex].

What is the division?

The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.

Given that, 2/3 divided by 1/4

To divide fractions, keep first fraction as it is change division sign to multiplication and inverse the second fraction.

Here, 2/3 ÷1/4

= 2/3 ×4/1

= 8/3

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

Therefore, the quotient of two fractions is [tex]2\frac{2}{3}[/tex].

To learn more about the division visit:

brainly.com/question/1575906.

#SPJ2

What is the midpoint, M, of line segment HG with
endpoints H(-10,2) and G(4,-4).

Answers

M(-3,-1) since you add the x’s and divide by two before doing the same with the y’s.

If 3 sodas cost $6. What is the cost cans of corn cost $16. What is the cost per can? per soda? If 8 tacos cost $12. What is the cost for 12 tacos? Priya can bike 300 meters in 20 seconds. How many meters can she bike in 10 seconds? A recipe calls for 0.8 oz of cheese. If ! make 35 batches of this recipe, how many ounces of cheese do I need? If one item cost $0.75 and I paid $2.25 at the register, how many items did I buy? If one item cost $0.79 and I paid $3.16 at the register, how many items did I buy? A puppy weighs 3 lbs at 10% of its adult weight. How many lbs will the puppy be when it is 60% of its weight? If I can read 54 pgs in 3 days, how many can I read in 1 day? 7 notebooks cost $21. How much for 5 notebooks? 1/5 of 45 is what number? Twelve waters cost $9. How many can you buy with $3? 9 is what percent of 90? 2 tickets cost $14. How many tickets can you buy with $63? If 40% is $2.00, how much is 100%? Lin paid $94 for 6 meals. How much would 9 meals cost? A cake calls for 25 cups of sugar. If1 use 225 cups of sugar, how many batches did I make? 9 is 75% of what number?

Answers

Answer:

dont mind me just tryna figure this out ignore till i figure it

Step-by-step explanation:

I'm not smart can someone please help me...?

Omar drove 420 miles using 18 gallons of gas. At this rate, how many gallons of gas would he need to drive 375 miles?

Answers

Answer:

420/18= 23.3 miles per gallon rounded

375/23= 16.3(rounded) if you want an exact number

17 gallons of gas

Step-by-step explanation:

Please very urgent please give me a correct answer!

Answers

Answer:

20%, 40%, 60%, 80%

Step-by-step explanation:

The correct order should be:
0 to 1/10 to 2/10 to 3/10 to 4/10 to 5/10 to 6/10 to 7/10 to 8/10 to 9/10 then to 1.

Plsss Someone help!!!!

Answers

Answer:

Its D

Step-by-step explanation:

Answer:

Step-by-step explanation:

yes

Slope : 4.
Point : (-10, 30)

Really need help on this please

Answers

You need to find b by substituting x and y.
y=Mx+b
30=4(-10)+b
b=-10

Answer is the last one.

The circumference A of a circle varies directly with its radius. A circle with a radius of 4 has a circumference of about 25.1 in.2. What would be the circumference of a circle with a radius of 9 in.?

Answers

The circumference is 56.54 to find the circumference do 2 times pi times radius

write an equation for each line in slope intercept form

Answers

Answer:

(3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly kcharacterization forethoughtfulness (3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness

Step-by-step explanation:(3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness (3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness (3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness

There are three brothers in the Howard family, Daryl, Malik, and Terrance, whose ages add up to 38 years. Daryl is 3 times as old as Malik, and Terrance is 4 years younger than Daryl. How old is Malik?

Answers

Answer:

Malik years is 37......

The difference of a number and 8 is 46 less the number. Find the number

Answers

Answer:

unsolvable

Step-by-step explanation:

n-8=46-n

n=(46-n)+8

n=54-n

Answer:

Step-by-step explanation:

you add 8+46 and you can check with 54-46=8

Which two triangles are congruent? Complete the congruence statement.

Answers

Answer:

∆VXW and ∆BDC are congruent

Step-by-step explanation:

to proof:∆VXW and∆BDC are congruent

proof:

statements reasons

1.in ∆VXW and ∆BDC, 1.

i.VW=BD(S) i.given

ii.VX=CD(S) ii.given

iii.XW=BC(S) iii.given

2.∆VXW and∆BDC 2.using S.S.S axiom

are congruent

hence proved.

What is the slope of the line?

Answers

Answer:

The slope is : -2/2

Step-by-step explanation:

To find the slope, start on the y-axis. -2 passes through the line on the y-axis so start there. Go up 2 unites, which will bring you to the origin. Now you need to reach -2 on the x-axis. Go left two units, which gives you 2/2. It's rise over run. It's -2 because you went left two units not right. When you go left, or down it'll be negative.

2 = rise

-2 = run

(x₁,y₁) = (-2,0)

(x₂,y₂) = (0,-2)

m = (y₂ - y₁)/(x₂ - x₁)

m = (-2 - 0)/(0 - (-2))

m = -2/2

m = -1

Solve the system of equations by substitution. y = 2x y = x +1

Answers

Step-by-step explanation:

y = 2x

y = x + 1

y-1 = x

y = 2x

y = 2 (y - 1)

y = 2y - 1

y = -1

The sum of two numbers is 10. The larger number is 4 times the smaller number. What are the two numbers? Let x = the smaller number. Lety = the larger number. Which two equations represent the system for this word problem? Equation 1: Equation 2:

Answers

4(2)+2=10

X=2

Y=8

X+y=10

Y=4x

He ratio of number of cookies to cost of cookies is 15:915:915, colon, 9. Let's find an equivalent ratio that shows the cost for 111 cookie. Hint #22 / 4 A ratio where one of the terms is 111 is called a unit rate. We can divide the number of cookies by 151515 to get to 111 cookie. Hint #33 / 4 \$\blueD9\div15=\$0.60$9÷15=$0.60dollar sign, start color #11accd, 9, end color #11accd, divided by, 15, equals, dollar sign, 0, point, 60 Hint #44 / 4 The cost of 111 cookie is \$0.60$0.60dollar sign, 0, point, 60.

Answers

Answer:

$0.60

Step-by-step explanation:

Given that:

The ratio of number of cookies to the cost of cookies as:

Number of cookies : Cost of cookies = 15 : 9

It means, we get 15[tex]x[/tex] number of cookies when we pay $9[tex]x[/tex].

To find:

An equivalent ratio to represent the cost of 1 cookie.

Solution:

Here, we have to find nothing but the unit price or the price of 1 cookie.

This can simply be done by dividing the total cost of cookies with the total number of cookies.

Total cost of 15[tex]x[/tex] cookies is given as $9[tex]x[/tex]

Using unitary method:

Let us divide both the sides with 15[tex]x[/tex], we get:

Total cost of [tex]\frac{15x}{15x}[/tex] cookies is given as [tex]\frac{\$9x}{15x}[/tex]

Total cost of 1 cookie is given as $0.60

enkeli has a bottle that holds 2.4 liters of juice. he divides it evenly into 6 cups. how many milliliters of juice does each of the glasses hold?

Answers

Answer:

0.4 millileters

Step-by-step explanation:

Other Questions

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