Please help me answerrr

Answer:

4200 m²

Step-by-step explanation:

The drawing below (not to scale) shows a running track. The ends are semicircles. The distance between the two inner parallel straight lines is 60 meters, and they are each 100 meters long. The track is 10 meters wide. Find the area of the track. Shaded part

Solution:

The big semicircle has a diameter = 60 m + 10 m + 10 m = 80 m

The radius of the big semicircle = 80 m / 2 = 40 m

The area of the two big semicircles at both end of the big track = 2 * (1/2 πr²) = πr² = π(40)² = 5027 m²

The big track has semicircles at both ends and a rectangle. The length of the rectangle = 100 m, the width of the rectangle = diameter of big semicircle = 80 m

Area of big rectangle = length * width = 100 m * 80 m = 8000 m²

Area of big track = 8000 m² + 5027 m² = 13027 m²

The small semicircle has a diameter = 60 m

The radius of the small semicircle = 60 m / 2 = 30 m

The area of the two small semicircles at both end of the small track = 2 * (1/2 πr²) = πr² = π(30)² = 2827 m²

The small track has semicircles at both ends and a rectangle. The length of the rectangle = 100 m, the width of the rectangle = diameter of small semicircle = 60 m

Area of small rectangle = length * width = 100 m * 60 m = 6000 m²

Area of small track = 6000 m² + 2827 m² = 8827 m²

The area of track (shaded part) = Area of big track - Area of small track = 13027 m² - 8827 m² = 4200 m²

Answer:

2 and 1/2 = 2.5

2.5 divided by 3 = 0.83

0.83 x 2 = 1.66 or 1 and 2/3 gallons of paint left

Step-by-step explanation:

Hope this helps! Have a nice day!

Answer:

$430.40

Step-by-step explanation:

7.6% of 400 = 0.076 × 400 = 30.4

Answer:

Multiply the radius by 2

Step-by-step explanation:

The diameter of a circle is 2times the radius of the circle. Do you know the radius? If so multiply that number by 2 and get the answer

Answer:

i think b

Step-by-step explanation:

Answer:

The total amount Christian spent to win a prize is $25 ⇒ A

Step-by-step explanation:

Let us solve the question

∵ The rule is On = Q1 + (n - 1)d

∵ A basketball game awards a prize if Christian can shoot a basket

∵ The charge is $5.00 for the first shot

→ That means the first amount is 5

∴ Q1 = 5

∵ Then $2.00 for each additional shot

→ That means the common difference is 2

∴ d = 2

∵ Christian needed 11 shots to win a prize

→ That means the number of shots is 11

∴ n = 11

→ Substitute the values of Q1, d, n in the rule above

∵ On = 5 + (11 - 1)(2)

∴ On = 5 + (10)(2)

∴ On = 5 + 20

∴ On = 25

∴ The total amount Christian spent to win a prize is $25

Answer:

The angle is 90*

Step-by-step explanation:

Since B to D is 45*, we can double that angle to equal 90* because it shares line BD to ABC

Answer:$25 bucks and 60 cents

Step-by-step explanation:

Answer:

x=45

Step-by-step explanation:

180-90= 90

90/2=45

omg am sooo sorry  this is all i could do.

52= y + 42       90+ X + Y = 180

i rlly dont know am sorry

Answer:

4

Step-by-step explanation:

[tex] \sqrt[4]{256} [/tex]

[tex] \sqrt[4]{4 \times 4 \times 4 \times 4} [/tex]

[tex] \sqrt[4]{ {4}^{4} } [/tex]

4

hope it's helpful ❤❤❤

THANK YOU

Answer:

3y+5

Step-by-step explanation:

You will have to distribute the negative to (y-2).

4y+3-y+2

3y+5

Answer:

(4y + 3) - (y -2)

(4y + 3) - y + 2

3y + 3 + 2

3y + 5

Answer:

ok so jacob threw 1/5 of x

Step-by-step explanation:

if you say julien threw x and jacob threw 1/5 of that than jacob threw 1/5 of x

Step-by-step explanation:

from the picture we got angle HFG is 45 degree.

let x is the length of HF

we got sin45=sqrt(8)/x

1/sqrt(2)=sqrt8/x

x=sqrt16

x=4

note that x is the length of HF

let y is the length of HE

use pythagorean theory

3^2+4^2=y^2

9+16=y^2

25=y^2

5=y

so tanE is x/y

tanE=4/5

Answer:uhhhhhhhhhh

Where dem beats been doe i den had to start spitting bars not work on the beats cuz I didn’t have you man bro

Step-by-step explanation:

Answer:

-8g

Step-by-step explanation:

If it is in that order:

You can either do

1g(same a just g)-9g

or

-9g+1g and you get -8g for each

Answer:

y = 5x - 22

Step-by-step explanation:

In this question, we have to find the equation of the line.

We know that the slope is 5 and passes through (5, 3) on the graph.

We know that our equation must be in slope-intercept form: y = mx + b

To find our y-intercept, or "b", we would plug in our given information and solve for b.

Solve for b:

3 = 5(5) + b

3 = 25 + b

Subtract 25 from both sides.

-22 = b

This means that our y-intercept is -22. We can now make our equation with our new information:

y = 5x - 22

The equation of the line is y = 5x - 22

Answer:

the answer is b

Step-by-step explanation:

I took the test on EDG 2021

Answer:

45 cm²

Step-by-step explanation:

The area of the shaded region is calculated as

area of outer triangle - area of inner triangle

area of outer = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height ) , then

A = [tex]\frac{1}{2}[/tex] × 15 × 10 = 75 cm²

area of inner = [tex]\frac{1}{2}[/tex] × 12 × 5 = 30 cm²

Thus

area of shaded region = 75 - 30 = 45 cm²

Step-by-step explanation:

2x⁴ = 9x²

2x⁴ - 9x² = 0

x²(2x² - 9) = 0

Either x² = 0 or 2x² - 9 = 0.

When x² = 0, x = 0.

When 2x² - 9 = 0, x² = 9/2, x = ± 3/√2.

Hence the solutions are

x = 0, x = 3/√2 and x = -3/√2.

Answer:

8x^23 i think

Answer:

Perpendicular

Step-by-step explanation:

Answer:

x=1, y=7

Step-by-step explanation:

y = -3x + 10 - first equation

y=-3x + 4 - second equation

rearrange the expression to

-3x-y= -10

3x-y= -4

pick an equation and simplify; lets pick the second equation

3x-y= -4

[tex]\frac{3x}{3} = \frac{-4+y}{3}[/tex]  

divide 3 by both sides

x= [tex]\frac{-4+y}{3}[/tex] - third equation

substitute the value of x into an equation; lets pick the first equation

-3x-y= -10

-3[tex](\frac{-4+y}{3})[/tex]- y = -10

simplify. -3 cancels 3 so we are left with

-1(-4+y)-y = -10

simplify

4-y-y= -10

4-2y= -10

subtract 4 from both sides

-2y= -10-4

-2y= -14

divide -2 by both sides

y=7

substitute the value of y, (y=7) in an equation, we are using the second equation

3x-y= -4

3x-7= -4

3x = -4+7

3x= 3

divide 3 by both sides

x=1

so the answer is x=1, y=7

Answer:

360

Step-by-step explanation:

I just done the quiz and got it right :) Choice C! Have a great day! Sub to my YT Channel plz

The permutation of 6 things taken 4 at a time is 360 So, option C is correct.

The different arrangements which can be made out of a given number of objects by taking out some or all at a time are called permutations.

The permutation of 6 things taken 4 at a time.

It is calculated as follows;

[tex]^6P_ 4[/tex] = 6!/(6-4)! =6!/2!

[tex]^6P_ 4[/tex] = (6×5×4×3×2×1) ÷ (2×1)

[tex]^6P_ 4[/tex] = 720/2  = 360

So, option C is correct.

Learn more about permutation ;

https://brainly.com/question/10148445

#SPJ2

Answer:

[tex] \sqrt[3]{125} = \sqrt[3]{5 \times 5 \times 5} = 5[/tex]

Answer:

m = 1/4  (the slope is 1/4)

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

Explanation:

(0,1)

(4,2)

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

0 +4 = 4   <-- x value

1 +1 = 2   <-- y value

As we know, [tex]m=\frac{y}{x}[/tex] , so it's going be [tex]\frac{1}{4}[/tex]

Answer:

I

Step-by-step explanation:

Don´t know

Answer:

12% decrease

Step-by-step explanation:

[(new value - old value) / old value] x 100

(22 - 25) / 25 = -3/25 = -0.12

-0.12 x 100 = -12%

when you have a negative it indicates a decrease rather than an increase

Answer:

the answer would be 1700 but ima not sure! hope this helps

Step-by-step explanation:

Answer:

i wanna say -80?

Step-by-step explanation: so when you go from -8 to -11 its counts by 3 -11 to -14 its 3 so count up to get our answer.   i just seen how many was in each 5 set which was 12 so i did -20 -12 so then i just added up and got -80