could somebody help me this ixl math is driving me crazy smh

Answer:

The circumference of a circle is equal to π , which is a number ≈3.14 , multiplied by the diameter of the circle. Therefore ... We also know that the diameter has twice the length of the radius. In equation form: 2r=d. 2r=16. r=8. Note that since 2r=d , the equation C=2πr holds and can be used in place of C=πd .

Step-by-step explanation:  The circumference of a circle is equal to π , which is a number ≈3.14 , multiplied by the diameter of the circle. Therefore ... We also know that the diameter has twice the length of the radius. In equation form: 2r=d. 2r=16. r=8. Note that since 2r=d , the equation C=2πr holds and can be used in place of C=πd .

Answer:

Combine like terms

Step-by-step explanation:

+ 8x

+4y

+4

8x + 4y + 4

Answer:

B

Step-by-step explanation:

2x+6x=8x

7y-3y=4y

Add the new terms into the equation and you get 8x+4y+4

Answer:

∠RPQ = 53°

Step-by-step explanation:

∠SPR and ∠RPQ are complementary, meaning that they add up to 90°. So,

∠SPR + ∠RPQ = 90°

We know that ∠SPR = 37°, so

37° + ∠RPQ = 90°

∠RPQ = 90° - 37°

∠RPQ = 53°

Answer:

x = 27

Step-by-step explanation:

Using ratio:

[tex] \frac{10}{14} = \frac{x + 8}{2x - 5 } \\ 10(2x - 5) = 14(x + 8) \\ 20x - 50 = 14x + 112 \\ 20x - 14x = 112 + 50 \\ 6x = 162 \\ \frac{6x}{6} = \frac{162}{6} = > x = 27.[/tex]

9514 1404 393

Answer:

  37/45 ≈ 0.822

Step-by-step explanation:

The formula for an exponential relation is ...

  y = a·b^x

This question is asking for the value of b. It can be found by substituting the given values of x and y, and taking the ratio of the resulting equations.

  90 = a·b^15

  74 = a·b^16

Dividing the second equation by the first, we have ...

  74/90 = (a·b^16)/(a·b^15)

  74/90 = b

The decay factor is 74/90 = 37/45 ≈ 0.822

Answer:

37/45=0.822 this is my answer

Answer:

13.7

Step-by-step explanation:

15^2-6^2=189

The square root of 189 is 13.74 blah blah blah

Answer:

13.7

Step-by-step explanation:

a²+b²=c²

a²+6²=15²

a²+36=225

a²=189

a≈13.7

Answer:

i think 7.42 i think

Step-by-step explanation:

Answer:

dawdawdwawdawdda

Step-by-step explanation:

daqwdwadwadwawdadw

Answer:

98pie

Step-by-step explanation:

area of semicircle with radius 14units

=1/2(pie)(14)(14)

=98pie

Answer:

The expected value of the raffle will be $1000 and the money obtained from selling tickets will be(4x400=$1600).

Step-by-step explanation:

First prize: $300

Second prize: 200x2=$400

3x100=$300

300+400+300

=$1000

Plz mark as brainliest

The expected value of the raffle will be $1000 and the money obtained from selling tickets would be equal to $1600.

A linear equation is an equation that has the variable of the highest power of 1. The standard form of a linear equation is of the form Ax + B = 0.

400 raffle tickets were sold for $4 each.

The one first prize winner will receive $300, and two people will each receive a second prize of $200.

There will be three $100 winners.

First prize = $300

Second prize = 200 x 2

=$400

So, the expected gross​ winnings:

3x100=$300

300+400+300

=$1000

Learn more about linear equations;

https://brainly.com/question/27056029

Answer:

[tex](5y + 1)^{2} - (2(y - 1))^{2} [/tex]

Step-by-step explanation:

1) Rewrite it in the form a² - b², where a = 5y + 1 and b = 2(y - 1 ).

[tex](5y + 1) ^{2} - (2(y - 1)) ^{2} [/tex]

2) Use multiplication Distributive Property: (xy)^a = x^a y^a.

[tex](5y + 1)^{2} - {2}^{2} (y - 1 {)}^{2} [/tex]

3) Simplify 2² to 4.

[tex](5y + 1 {)}^{2} - 4(y - 1 {)}^{2} [/tex]

4) Rewrite it in the form a² - b², where a = 5y + 1 and b = 2(y-1).

[tex](5y + 1 {)}^{2} - (2(y - 1))^{2} [/tex]

Therefor, the answer is ( 5y + 1 )² - (2( y - 1 ))².

Answer:

The total value of the liquid in the container is about $41,866,666.67.

Step-by-step explanation:

A spherical container has a diameter of 100 centimeters.

It is filled with a liquid that costs $80 per cubic centimeter.

And we want to determine the total value of the liquid in the container.

We can start by finding the volume of the container.

Since the container has a diameter of 100 centimeters, its radius if 50 centimeters.

The volume of a sphere is given by:

[tex]\displaystyle V=\frac{4}{3}\pi r^3[/tex]

Substitute. We will also use 3.14 for π. So:

[tex]\displaystyle =\frac{4}{3}(3.14)(50)^3=523333.33...\text{ cm}^3[/tex]

(Try not to round intermediate values.)

Since each cubic centimeter costs $80, we will multiply the total volume by the cost per cubic centimeter to find the total value. Thus, the total value is:

[tex](523333.\overline{3})(80)\approx \$41, 866, 666.67[/tex]

The total value of the liquid in the container is about $41,866,666.67.

Answer: 21 units

Step-by-step explanation:

Answer:

Step-by-step explanation:

chang is 6 inches taller then nancy.

use n for nancys height.

write an expression for changs height.

Answer:

A.  The median height of the sample must be between 59 and 63 inches.

B. Another random sample of 20 students is likely to have a mean between 57 and 65 inches.

E.  Elena would be more likely to get an accurate estimate of the mean height of the population  by sampling 40 people instead of sampling 20 people.

Step-by-step explanation:

The mean absolute deviation shows the variation in a given data set. It can be determined by calculating the mean of the absolute value of the initial mean and each data set. It describes how spread out the data set are.

With respect to Elena's sampling, the mean absolute deviation is 2. This shows that there is little variation among the data set.

The estimate becomes more accurate if she increase the sample size. Thus options A, B and E are appropriate.

Answer:

m = 60/6

60 = 6 x m

Step-by-step explanation:

Answer:

The answer is 54.23489

Step-by-step explanation:

Hope this helps

Answer:

4%

Step-by-step explanation:

Answer:

`5 centemeters.

Step-by-step explanation:

Just divide the KM by 7 since 21 divided by 3 is 7. So dividing 105 by 7 gives you 15. HOPE THIS HELPS! :)

Answer:

the answer is c 3^15

Step-by-step explanation:

Answer:

3√15

Step-by-step explanation:

Edge 2021

Answer:

21:  37

They are the opposite side exterior angles

22: 40

23:  126

They are the opposite side exterior angles

24: 1

25: 12

90 - 48 = 42

42 = 3x + 6

36 = 3x

12 = x

26:   41

180 - 139 = x

41 = x

27:   140

180 - 40 = 140

28: 68

90 - 22 = 68

29: False

Complementary angles add up to 90 degrees

Hope this helps!

Answer:

D

Step-by-step explanation:

I believe it's d. it looks closest to the values provided.

Answer:

B

Step-by-step explanation:

if you multiply m by 2 you get 260we now want to subtract this from 360 to get 100 then we divide that by 2 to get angle n∠BEF= 50°.

We know angle k∠EBF= 90° so we now end up with adding angle ∠BEF with ∠EBF  to get 140 to get angle x we subtract 140 from 180 to get 40. x=40°. so B is the correct answer

Answer:

50 times

Step-by-step explanation:

You are going to flip a coin 100 times. There are 2 sides. So, what you would do is divide 100 by two because there are two sides. There is a 50% chance that the coin will land on heads, and a 50% chance it will land on tails.

Please let me know if you have any more questions. Hope this helps!

Answer:

48

Step-by-step explanation:

180-(90+42)

Answer:

3.5, 4/5 and 2.25 is greater than zero

Step-by-step explanation:

Basicly any number without a - sign is greater than zero.  Hope this helps :)

Answer:

3.5 and 2.25

Step-by-step explanation:

-2.5 is a negative so cross that out, same thing goes for -1/5. 4/5 is a fraction so its less than zero but if it was 5/5 that would equal 1 but its not

Answer:

4 in^2

Step-by-step explanation:

The rate is 1:5

Answer:

A because you can go into the numbers evenly

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

it is important to note that 40/8 = 5.

A real number is one that can be found on the number line, and 5 can be.

A rational number can be made by dividing two integers (40 by 8 in this case).

5 is a whole number since it does not have a decimal/fractional part

an integer is a whole number which is positive/negative (5 is positive in this case)

Answer:

B. negative infinity < x < positive infinity

Step-by-step explanation:

When a question asks for the domain of a function, it is asking for all possible x-values, so we can rule out choice A since there are clearly x-values greater than 1. This graph shows arrows pointing left and downward, indicating that the graph continues past what we can see. This tells us that even though the x-values look like they end at -10 and 2, they continue further, so we can also rule out option C and option D. After these eliminations, we are left with choice B, which is a way of writing "All real numbers," and is the domain for all exponential functions, including this one.

lmk if im incorrect about anything, hope this helps :)