Can someone help me with this please?

Answer:

A

Step-by-step explanation: Took a quiz  

Answer:

7/10= 0.7 = 0.70 = 70%

Step-by-step explanation:

If you multiply them together you get 70, this only works if it is /10.

Answer:

x=31, x=31, x=21.

Step-by-step explanation:

So for number 33, we see that 2x+28=90 degrees so you just simplify the equation to 2x=62, x=31.

For number 34, we see that 4x+56=180 (flat line), so we simplify the equation again and get 4x=124, x=31 degrees.

For number 35, according to the vertical angle theorem, 43=2x+1, so we simplify that too and we get 42=2x, 21=x, x=21.

Answer:

5 yes

7 yes

9 no

Step-by-step explanation:

(4*7)^x is 28 which is greater than 0 and not equal to one.

Same with 7

9 has a negitive 5 being multiplied to 9 which leads it to being -45^x which is less than zero

Answer:

i need some points sorry not sorry

Answer:

The radius increase when the volleyball is fully inflated is 0.5

Step-by-step explanation:

Volume of Partially inflated volleyball = 180 in³

Volume of Full inflated volleyball = 294 in³

We need to find how much does the radius increase when the volleyball is fully inflated?

First we will find the radius of both Partially inflated and Full inflated volleyball. Then we will find increase in radius.

The formula for Volume of sphere is: [tex]Volume=\frac{4}{3}\pi r^3[/tex]

Finding Radius of Partially inflated volleyball

Volume = 180

Putting values and finding radius of Partially inflated volleyball

[tex]Volume=\frac{4}{3}\pi r^3\\180=\frac{4}{3}*3.14*r^3\\4.186r^3=180\\r^3=\frac{180}{4.186}\\r^3=43.0\\Taking\:cube\:root\:on\:both\:sides\\\sqrt[3]{r^3}=\sqrt[3]{47}\\r= 3.6[/tex]

So, radius of Partially inflated volleyball is r = 3.6

Finding Radius of Fully inflated volleyball

Volume = 294

Putting values and finding radius of Fully inflated volleyball

[tex]Volume=\frac{4}{3}\pi r^3\\294=\frac{4}{3}*3.14*r^3\\4.186\:r^3=294\\r^3=\frac{294}{4.186}\\r^3=70.23\\Taking\:cube\:root\:on\:both\:sides\\\sqrt[3]{r^3}=\sqrt[3]{70.23}\\r= 4.1[/tex]

So, radius of Partially inflated volleyball is r = 4.1

Now, finding increase in radius by subtracting radius of fully inflated volleyball with partially inflated volleyball

Increase in radius of Fully inflated volleyball = 4.1 - 3.6

Increase in radius of Fully inflated volleyball = 0.5

So, the radius increase when the volleyball is fully inflated is 0.5

Answer:

Exponential growth

4%

12

Step-by-step explanation:

Given the function :

​f(n) = 12(1.04)^n​

Part A: Is this a growth or decay exponential function?

The equation above is usually generally represented as :

F(n) = A(1 ± r)^n

Where F(n) = final amount after n years ; r = rate ; n = number of years

The function Given above is thus :

F(n) = 12(1 +0.04)^n

This is an exponential growth function because of the negative rate (+ 0.04)

Part B: What is the growth or decay percentage for this function

From the equation :

F(n) = A(1 + r)^n ; r = rate

Comparing F(n) = 12(1 +0.04)^n ; r = 0.04 = 0.04*100% = 4%

Part C: What does the y-intercept of the graph of the function f(n) represent?

The y intercept :

Value of F(n) when n = 0

F(n) = 12(1 +0.04)^n

F(n) = 12(1 +0.04)^0

Fn = 12(1)

Hence, intercept = 12

40%

We get: 40% of 30 is 12.

Is this true?

Yes! 40% of 30 = (0.4)(30) = 12

Answer:

slope (m)= 2/7

X1= 1

y1= 2

formula from equation of the line:

1. Y2 - Y1/ X2 - X1 ( if you know 2 point )

2. y - y1 = m × ( x - x1 ) (if you know the slope and 1 point )

3. mx + c = y ( if you know the slope and the y-axis )

because the known gradient and 1 point, then use the formula number 2.

let's get into the formula:

y - y1= m × (x -x1)

y - 2 = 2/7 × ( x - 1 )

y - 2 = 2/7x - 2/7

y= 2/7x - 2/7 + 2

y = 2/7x + 12/7

Answer:

<3 = 50

Step-by-step explanation:

The sum of the angles of a triangle is 180

<1 + 40 + 90 = 180

<1 + 130 = 180

<1 = 50

<1 and <3 are vertical angles and vertical angles are equal

Answer:

the last one

Step-by-step explanation:

Parallel lines never intersect.

hope this helps

Answer:

plot the points

(-4, 2.5) (-3, 3) (-2, 1.5) (-1, 2) (0, 1)

(1, 2) (2, 3.5) (3, 0.5) (4, 2.5)

Step-by-step explanation:

does that help any???

48=y+5y

pretend that there is a 1 in front for the y

48=1y+5y

add the like terms first

1y+5y=6y

48=6y

divide both sides by 6 to get y by itself

48/6=6y/6

8=y

answer:

y=8

Answer:

y = 8

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define equation

48 = y + 5y

Step 2: Solve for y

Step 3: Check

Plug in y into the original equation to verify it is a solution.

Here we see that 48 does indeed equal 48.

∴ y = 8 is a solution of the equation.

Answer:

-15?

Step-by-step explanation:

It's hard to tell where the point is exactly

Answer:

The 45th term is equal to -209.

Step-by-step explanation:

I got stuck on this question for six attempts. Therefore I started trying other methods. I started with a10=1 and then subtracted 6 to get a11=-5. I continued this process until I reached a45=-209

An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference. The 45th term for the arithmetic sequence is -209.

An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference.

The explicit formula for any arithmetic series is given by the formula,

aₙ = a₁ + (n-1)d

where d is the difference and a₁ is the first term of the sequence.

Given that the 10th term of the arithmetic series is 1, while the common difference of the arithmetic series is -6. Therefore, 10th term of the series can also be written as,

aₙ = a₁+(n-1)d

1 = a₁+(10-1)(-6)

1 = a₁ + (9)(-6)

1 = a₁ - 54

a₁ = 55

Now, the 45th term for the arithmetic sequence is,

aₙ = a₁ + (n-1)d

a₄₅ = 55 + (45-1)(-6)

a₄₅ = 55 - 264

a₄₅ = -209

Hence, the 45th term for the arithmetic sequence is -209.

Learn more about Arithmetic Sequence here:

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Answer:

5 cows, 21 chicken

Step-by-step explanation:

5 cows; 20legs

21chickens; 42legs

26heads; 62legs

Answer:

from his friend’s house is faster, taking 22.5 minutes

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

i just got  it right :)

Answer:

B (I think)

Step-by-step explanation:

$2.88 divided by 12 is 0.24

Answer: your answer is 3

Step-by-step explanation: if you multiply 3 and 8 you get 24 divide that by 8.

The number of pizzas each kid will receive if there were 12 children was 2 slices each

The number of pizzas each kid will receive if there were 8 children was 3 slices each

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

The total number of pizzas at the party = 3 pizzas

The total number of slices in 1 pizza = 8 slices

So , the number of slices in 3 pizzas = 3 x 8 slices

The number of slices in 3 pizzas = 24 slices

Now , the equation will be

The number of children attended the party be = A

The value of A = 12 children

So , the number of pizza slices each child gets = number of slices in 3 pizzas / number of children attended the party

Substituting the values in the equation , we get

Number of pizza slices each child gets = 24 / 12

Number of pizza slices each child gets = 2 slices each

Therefore , if there are 12 children , the number of slices of pizzas each child receives is 2 slices

Now , if the number of children is B = 8

Number of pizza slices each child gets = 24 / 8

Number of pizza slices each child gets = 3 slices each

Therefore , if there are 8 children , the number of slices of pizzas each child receives is 3 slices

Hence , The number of pizzas each kid will receive if there were 12 children was 2 slices each

The number of pizzas each kid will receive if there were 8 children was 3 slices each

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Answer:

The answer Is C

Answer:

11 dimes and 4 nickles

Step-by-step explanation:

Answer:

11 dimes equals 1.10 and 4 nickels equals 20 cents

Step-by-step explanation:

Answer:

1/2 = 2/4 = 4/8

Step-by-step explanation:

his error was probably that he only change the denominator since there all even

Answer:

I believe D I’m not sure though

Step-by-step explanation:

Answer:

The better deal is 8 for $7.50

4 of pack one=$25

2 of pack two=$15

Spent altogether= $40

Answer:

Which is the better deal? Pack of 8 is a better deal.

Buy 4 of Pack One: $24.40

Buy 2 of Pack Two: $11.90

How much did you spend altogether? $36.30

Step-by-step explanation:

Let's start with the Swag Bags. To figure out if something is a good price, divide the items inside of it by the price so you can get the $ per item and compare.

[tex]\frac{6.25}{6}[/tex] = $1.04 per item for Pack of 6

[tex]\frac{7.50}{8}[/tex] = $.94 per item for Pack of 8

Generally, saying "which item is the better deal" refers to which price per item is cheaper. In this case, Pack of 8 is a better deal.

Now, goodie bags.

Pack one costs $6.10 while Pack two costs $5.95.

"Buy 4 of Pack One: $" is asking for the price of 4 Pack Ones. To do this, you simply multiply the pack one price by 4, since you are buying 4 of them.

4 * 6.10 = $24.40

Same idea for Pack Two, just different price and different amount.

2 * 5.95 = $11.90

How much did you spend altogether? Add the total values for both goodie bag packs.

$24.40 + $11.90 = $36.30

Answer:

x>-5

Step-by-step explanation:

First, we need to isolate the variable. To start doing this we can add five to both sides. We now have -3x<15. We then have to divde by -3. When working with inequalites you flip the inequality sign when dividing by a negative number. That then leaves us without answer, x>-5.

Answer:

12 days

Step-by-step explanation:

4x3=12

Answer:

a c and d

Step-by-step explanation:

lmk if you need work

and remember that when it is negative, the value that is closer to 0 is greater

Answer:

y=1/2x-4

Step-by-step explanation:

Answer:

y=3x-6

Step-by-step explanation:

y=mx+B

y replaces the b

the slope replaces the m