Need help 10 points

Need Help 10 Points

Answers

Answer 1

Answer:

50.24

Step-by-step explanation:

8 is the radius of the circle, so using A=πr^2, the equation would be A=(3.14*8^2)/4

(Dividing by 4 because we are solving for 1/4 of a circle, and substituting pi for 3.14)

(3.14*8^2)=200.96

200.96/4=50.24


Related Questions

Pls helppp!


9 years ago, when Miko celebrated her birthday with her family, the ratio of the age of Miko to Miko's sister was 5 : 7. This year, the ratio of the age of Miko to Miko's sister is 4 : 5. How old is Miko now?

Answers

Answer: 24

Solution:
Step one: we need to solve this system:
{4x-9=5y
{5x-9=7y

{x=(5y+9)/4
{5•(5y+9)/4-9=7y

Step two: solve the second equation for y:
y=3

Step three: If y=3, and x=(5y+9)/4
X=6

Step four: considering Miko is now 4•x years old, answer will be 4•6=24

what is the initial value of the linear relationship of -2, 3

Answers

Answer: Based on the graph, what is the initial value of the linear relationship?
A coordinate plane is shown. A line passes through the x axis at negative 3 and the y axis at 5.
−4
−3
five over three
5

8 3/4 - 5 2/3 what is the answer

Answers

Answer:

3 1/12

Step-by-step explanation:

Damian created a table to record how many flavors of Candy Whizz candies he has in his jar.
Flavor of Candy Frequency
Chocolate
51
Fudge
40
Orange
14
Vanilla
20
Damian randomly pulls a piece of candy from the jar and then puts it back in the jar. If he does this 50 times, how many times is a vanilla-flavored candy expected to be pulled
from the jar?
Options:
04
16
20
08

Answers

The number of times Damian would pick a vanilla-flavored candy from the jar is 8 times.

How many times would Damian pick a  vanilla-flavored candy?

Probability determines the odds that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

The number of times Damian would pick a vanilla-flavored candy = number of vanilla flavored candy / total number of candies

20 / 125 = 0.16  

0.16 x 50 = 8 times

To learn more about probability, please check: https://brainly.com/question/13234031

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• A bag contains 5 orange, 3 yellow, and 5 black marbles. What are the odds of picking an orange marble?​

Answers

Answer:

The odds will be 5/13.

Step-by-step explanation:

There are 13 marbles total in this situation. 5 orange, 3 yellow and 5 black (5+3+5) will give us 13 as our overall total. Now, because we have 5 orange marbles available, we'll write this as a 5/13 odds/ chance of picking an orange marbles because it is how many orange marbles are present over how many marbles there are total.

Also! You can't simplify this any further, thus you'd have 5/13 odds.

3Your new mobile phone costs £360.
The probability you leave it on the bus is 0.1.
The probability someone will hand it in to lost property and you will recover it
is 0.4.
The cost of insurance to cover the loss of the phone is £30.
Should you pay for this control measure?
List any assumptions that you make

Answers

Assuming you have to pay 30 pounds for somebody handing it in to lost property, you'll have a 0.5 probability that you'll have to pay the 30 pounds if you lose the phone.
Also assuming there are no other ways to lose your phone, you have a 0.5 probability (50% chance?) to lose your phone.
Also assuming the "control measure" is the insurance and you won't have to pay a larger amount, you'll probably be better off paying the 30 pounds instead of the larger amount because you have such a high chance of losing your phone.
I apologize if I misunderstood the question.

What’s the circumference?

Answers

Answer:

C=2πr=2·π·4≈25.13274

Step-by-step explanation:

Answer:

The formula to get the circumference of a circle is [tex]C=2*\pi * r[/tex].  We can then input the value and we get that [tex]C=2*\pi*4[/tex] and as we solve it more the final answer that we get is [tex]C=25.133[/tex].

Hope this helps!  Let me know if you have any questions

In a right-angled triangle, the sum of the squares of the three sides is 72. What is the length of the hypotenuse?

Answers

Answer:

The hypotenuse has a length of 6

Step-by-step explanation:

Remark

The first step is to create the 2 equations needed to solve this problem.

Then substitute one into the other.

Equations

c^2 + a^2 + b^2 = 72  

c^2 = a^2 + b^2

Solution

c^2 + a^2 + b^2 = 72             The sum of the sides each squared of a right triangle = 72

c^2 = a^2 + b^2                      The pythagorean theorem says the hypotenuse of the right triangle = the sum of the squares of two smaller sides. You can substitute the hypotenuse squared into the top equation for a^2 + b^2

c^2 + c^2 = 72

2c^2 = 72

c^2 = 36

c = 6.                      minus 6 is meaningless

10% of the 200 athletes at a lacrosse tournament have yellow jerseys. How many athletes have yellow jerseys?

Answers

Answer:

20 athletes

Step-by-step explanation:

200 x 10% = 20
Or 200 x .10 = 20
Hint: When you read “10% OF 200” the OF
means multiply

math help questions

Answers

After 1 year, the initial investment increases by 7%, i.e. multiplied by 1.07. So after 1 year the investment has a value of $800 × 1.07 = $856.

After another year, that amount increases again by 7% to $856 × 1.07 = $915.92.

And so on. After t years, the investment would have a value of [tex]\$800 \times 1.07^t[/tex].

We want the find the number of years n such that

[tex]\$856 \times 1.07^n = \$1400[/tex]

Solve for n :

[tex]856 \times 1.07 ^n = 1400[/tex]

[tex]1.07^n = \dfrac74[/tex]

[tex]\log_{1.07}\left(1.07^n\right) = \log_{1.07}\left(\dfrac74\right)[/tex]

[tex]n \log_{1.07}(1.07) = \log_{1.07} \left(\dfrac74\right)[/tex]

[tex]n = \log_{1.07} \left(\dfrac74\right) = \dfrac{\ln\left(\frac74\right)}{\ln(1.04)} \approx \boxed{8.3}[/tex]

Answer:

25 years

Step-by-step explanation:

total = before × percent ( in decimal ) × time

1400 = 800 × 0.07 × t

1400 = 56 × t

1400 ÷ 56 = 25

t = 25

Hope this was helpful!

help will give brainliest

Answers

Answer:

0.7°

Step-by-step explanation:

From the figure:

CF = 4000.2 miles, CE = 4000.01 miles

so FT = √CF² - CT², TE = √CE² - CT²

so FT = 40 miles, TE = 8.94 miles

so ½ × 4000.2 × 4000.01

xsin angle FCE = ½ × 4000 × 140 + 8.94

so sin angle FCE = 0.0122

so angle FCE = 0.7°

so m SB = 0.7°

HOPE THIS HELPS AND HAVE A NICE DAY <3

Two boats leave the same marina. One heads north, and the other heads east. After some time, the northbound boat has traveled 16 miles. If the two boats are 20 miles apart, how far has the eastbound boat traveled?

Answers

Answer:

4 Miles

Step-by-step explanation:

Simple, if the boat heading North has traveled 16 miles then the boat heading East has only traveled 4 miles.

How do I get the answer

Answers

One side of triangle is given equilateral triangle which means all the angles of the triangle is 60°

so we have angles of bigger triangle:-

60° 60+35= 95° x( to find )

Use angle sum property

( sum of all interior angles is 180°)

[tex]x + 60 + 95 = 180 \\ x = 180 - 60 - 95 \\ x = 120 - 95 \\ x = 25 \degree[/tex]

Evaluate for f(-2)
f(x) = 3/2x - 4

Answers

Answer:

f(-2) = -7

General Formulas and Concepts:
Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Algebra I

Functions

Function Notation

Step-by-step explanation:

Step 1: Define

Identify given function.

[tex]\displaystyle f(x) = \frac{3}{2}x - 4[/tex]

Step 2: Find f(-2)

[Function] Substitute in x:
[tex]\displaystyle f(-2) = \frac{3}{2}(-2) - 4[/tex]Multiply:
[tex]\displaystyle f(-2) = -3 - 4[/tex]Subtract:
[tex]\displaystyle f(-2) = \boxed{ -7 }[/tex]

∴ the function when x = -2 is equal to -7.

---

Learn more about functions: https://brainly.com/question/27698504

Learn more about Algebra I: https://brainly.com/question/15995023

---

Topic: Algebra I

If 10^2y = 25, then 10^-y equals:
(a) -1/5
(b) 1/625
(c) 1/50
(d) 1/25
(e) 1/5​

Answers

given:

[tex]10 ^{2y} = 25[/tex]

to find:

[tex] {10}^{y} = .......[/tex]

solution:

[tex]10 ^{2y} = 25[/tex]

[tex] (10y {)}^{2} = {5}^{2} [/tex]

[tex]10y = 5[/tex]

[tex] \frac{1}{ {10}^{y} } = \frac{1}{5} [/tex]

[tex] {10}^{ - y} = \frac{1}{5} [/tex]

therefore, the correct answer is option E.

the correct option is option e.

hope this helps you

have a great day

please give me brainliest.

The product of two consecutive integers is 72. the equation x(x 1) = 72 represents the situation, where x represents the smaller integer. which equation can be factored and solved for the smaller integer? x2 x – 72 = 0 x2 x 72 = 0 x2 2x – 72 = 0 x2 2x 72 = 0

Answers

The equation that can be factored and solved for the samller integer is x² + x - 72 = 0

How to form an equation?

The product of two consecutive integers is 72. The equation that represents the situation is as follows:

x(x + 1) = 72

where

x = smaller number

Therefore,

x(x + 1) = 72

x² + x = 72

x² + x - 72 = 0

Therefore, the equation that can be factored and solved for the samller integer is x² + x - 72 = 0

learn more on equation here: https://brainly.com/question/10440486

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Billy has 10 bouncy balls. His brother has 30 bouncy balls. He washed 10 of his and 10 of his brother. How many bouncy balls do they have left?

Answers

Answer:

20

Step-by-step explanation:

10 + 30 = 40

40 - 10 = 30

30 - 10 = 20

answer is 20

Answer:

20 bouncy Balls!

Step-by-step explanation:

10+30 - 20 = 20

The image is the question

Answers

Answer:

6h^2 - 19h + 15

Find two numbers that their sum is -19 and their product is 90.

Hence, the numbers will be -9 and -10

6h^2 - 9h - 10h + 15

3h(2h - 3) -5(2h - 3)

(2h - 3)(3h - 5)

What is the value of x innthe equation 1.5(x+4)-3=4.5(x-2)

Answers

[tex]~~~~~~1.5(x+4)-3 = 4.5(x-2)\\\\\implies 15(x+4) -30 =45(x-2)~~~~~~~~;[\text{Multiply both sides by 10]}\\\\\implies 3(x+4)-6=9(x-2)~~~~~~~~~~;[\text{Divide both sides by 5]}\\\\\implies 3x+12-6=9x-18\\\\\implies 3x+6=9x-18\\\\\implies 9x-3x = 18+6\\\\\implies 6x = 24\\\\\implies x = \dfrac{24}6\\\\\implies x =4[/tex]

PLEASE HELP ME I NEED ANSWERS

Answers

70 is the area of the polygon

An 8th Grader is paid for the chores they do around the house. (Although they shouldn't be paid... They don't pay rent and eat for free. That is payment enough!)


The table shows the frequency and cumulative frequency of their undeserved income. Fill in the missing blanks.


Months Income Cumulative

1 to 3 $100 .............$-----

4 to 6 $------ ------$300

7 to 9 $ ------------ $400

10 to 12 $300 ............$-----

Answers

Answer

100 to 300

200 to 300

320 to 400

250 to 300

I hope this helps

Gerda discovers that the lifetime of light bulbs is normally distributed with mean 1000 hours and standard deviation 100 hours. if gerda buys 50 bulbs, how many of them are expected to last less than 800 hours? give your answer correct to the nearest integer.

Answers

At least 50 of them are bound to last that much and she is on the right track and keep going you should get it soon

Maria and Bridgette both belong to the same public pool and attend swim classes with a coach. Maria pays $105 for her season pass and 6 swim classes. Bridgette pays $135 for her season pass and 9 swim classes. What is an equation for the cost of a season pass and swim classes as a function of the number of swim classes attended? Explain what each variable represents and identify the initial value and the rate of change. Show your work.​

Answers

Answer:

T = 10s + 45

Step-by-step explanation:

Since both Maria and Bridgette belong to the same public pool they pay same rate for season pass and each class.

Let the season pass be y and swim class cost be x.

Then according to given we have the following equations

y + 6x = 105y + 9x = 135

Solve the system by elimination, subtract the equations

y + 9x - y - 6x = 135 - 1053x = 30x = 10

Find y

y + 6*10 = 105y = 105 - 60y = 45

The initial value is 45 and rate of change is 10.

The equation for the total cost would be

T = 10s + 45, where T - total cost, s - number of swim classes  

Write the product using exponents.

Answers

Answer:

3^4

Step-by-step explanation:

because I took the test

If point a is at (-1,2) and point b is at (11,-7), what is length of line ab?

Answers

Answer:

15

Step-by-step explanation:

Distance formula: [tex]d=\sqrt{(x2-x1)^{2}+(y2-y1)^{2} }[/tex]

Plug in (-1,2) and (11, -7):

[tex]d=\sqrt{(11-(-1)^{2}+(-7-2)^{2} } = d=\sqrt{(12)^{2}+(-9)^{2} }=\sqrt{144+81} = \sqrt{225} = 15[/tex]

Carl makes $10.25 per hour, h, plus a daily bonus of $25. Which equation represents his total earnings, t, each day?​

Answers

Answer:

10.25 × h + 25= t

Step-by-step explanation:

he gets 10.25 for every hour, so you do 10.25 × h, than for his extra bonus of 25 dollars a day, you add 25. than t shows the final earnings

Of the last 15 people at a carnival booth, 6 won a prize. what is the experimental probability that the next person at the booth will win a prize?

Answers

Answer:

40% or 2/5

Step-by-step explanation:

won = 6

total no. of people = 15

probability of winning = 6/15 = 2/5

2/5*100

=40%

what’s the area and the perimeter and of the triangle?

Answers

Answer:

Area = 3.3998

Perimeter = 2.9

Step-by-step explanation:

A method for calculating the area of a triangle when you know the lengths of all three sides.

Let a,b,c be the lengths of the sides of a triangle. The area is given by:

Area =  √  p  ( p − a )  ( p − b )  ( p − c )    

where p is half the perimeter, or  

a + b + c / 2

 p = 1.7 + 1.7 + 2.4 / 2 = 5.8 /  2 = 2.9

a = Area = 3.3998

Heron was one of the great mathematicians of antiquity and came up with this formula sometime in the first century BC, although it may have been known earlier. He also extended it to the area of quadrilaterals and higher-order polygons.

The spinner is divided into 8 equal-sized sections. enter the probability of the arrow landing on a section labeled 4 on the first spin

Answers

Answer: 1/8

Step-by-step explanation:

What’s the area formula, of 48m

Answers

Answer:

The area formula of a circle is [tex]A=\pi* r^2[/tex] where r is the radius and in this case our r is 48 m.  So we would just plug in 48 m into r which would get squared and then multiplied by pi to give us [tex]7,238.23\ m[/tex].

Hope this helps!  Let me know if you have any questions

Answer:

[tex]\pi[/tex]r²

Step-by-step explanation: Youre welcome :)

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