eighth grade Algebra one

Answer:

-103

Step-by-step explanation:

Exponentiation: 2 ^ 2 = 4

Add: the result of step No. 3 + 7 = -4 + 7 = 3

Exponentiation: 5 ^ 3 = 125

Subtract: the result of step No. 5 - 2 = 125 - 2 = 123

Exponentiation: 3 ^ 2 = 9

Subtract: the result of step No. 6 - the result of step No. 7 = 123 - 9 = 114

Subtract: the result of step No. 8 - 8 = 114 - 8 = 106

Subtract: the result of step No. 4 - the result of step No. 9 = 3 - 106 = -103

Answer:

Step-by-step explanation:

To solve this equations, we must use the order of operations, or PEMDAS, Parenthesis, exponents, multiplication, division, addition, and subtraction.

The value of the first side is 30, the value of the second side is -106

We add and subtract and our answer will be -76

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[tex]\\ \rm\bull\rightarrowtail x^2-3x+27=6x+7[/tex]

[tex]\\ \rm\bull\rightarrowtail x^2-3x-6x+27-7=0[/tex]

[tex]\\ \rm\bull\rightarrowtail x^2-9x+20=0[/tex]

[tex]\\ \rm\bull\rightarrowtail x^2-5x-4x+20=0[/tex]

[tex]\\ \rm\bull\rightarrowtail x(x-5)-4(x-5)=0[/tex]

[tex]\\ \rm\bull\rightarrowtail (x-4)(x-5)=0[/tex]

[tex]\\ \rm\bull\rightarrowtail x=4,5[/tex]

»x² - 3x + 27 = 6x + 7

»x² - 3x + 27 - 6x - 7 = 0

»x² - 9x + 20 = 0

»(x - 4)(x - 5) = 0

»(x - 4) = 0 V (x - 5) = 0

»x - 4 = 0

»x = 0 + 4

»x = 4

»x - 5 = 0

»x = 0 + 5

»x = 5

Answer:

All you have to do is add 4 to the equation

This gives you g(x)=4x^2+9 which is your answer

Step-by-step explanation:

Answer:

In explanation

Step-by-step explanation:

If Mr.brown worked 20 hours and his wife wold of worked 15 hours they would both earn 120$.

Another one is if Mr.brown works 40 hours and his wife works 30 hours they each could make 240$

Hope this helps have a great day:)

Answer:

Step-by-step explanation: Browne works 4 hours and gets 24$. Wife works 3 hours and gets 24$. That's the least amount of hours for them to earn the same pay. Some other ways: Browne - 8 h and 48$, Wife - 6 h and 48$. Their hours just should be 4:3

Answer:

f(x) = x⁴ - 13x³ + 39x² + 13x - 40

Step-by-step explanation:

If the zeroes are 8, 5, 1 and -1, then x = 8, x = 5, x = 1, x = -1

⇒ x - 8 = 0

⇒ x - 5 = 0

⇒ x - 1 = 0

⇒ x + 1 = 0

⇒ f(x) = (x - 8)(x - 5)(x - 1)(x + 1)

⇒ f(x) = x⁴ - 13x³ + 39x² + 13x - 40

Answer:

b, c and d are all correct

Step-by-step explanation:

if you substitute, numbers for x, it simply has to be greater than 15

Answer:

Step-by-step explanation:

CE × ED = AE × EB

17 CE = 14 × 18

CE = [tex]\frac{252}{17}[/tex] ≈ 14.8

Answer:

The expression simplifies into 33-20x

Step-by-step explanation:

1. 9[-4(5x-6)] *Multiply the parentheses by -4

2. 9+24-20x *Combine like-terms

3. 33-20x

Answer:

48 seashells

Step-by-step explanation:

you subtract 74-26 to get 48. to check your answer you do 74-48 to get 26.

Answer:

48 seashells were given to mary

Step-by-step explanation:

Mike has 74 seashells, and he gave some to mary.

__ + 26 = 74

The amount of seashells given to mary is that empty spot

So, let's subtract 74 by 26 and get 48 seashells given to mary

We can double check this answer by adding 48 and 26 to get 74, the original amount of seashells that mike had.

Answer:

a. Total field goal points scored in the first two quarters, in simplest linear expression form is: 3x - 4.

b. The total points scored in the game, in simplest linear expression form is: 6x - 1.

a. The goal points scored in the first two quarters are expressed in linear forms as: 2x - 6 and x + 2.

The total field goal points in the first two quarters = 2x - 6 + x + 2

Add like terms

3x - 4

b. The total points scored in the game = 2x - 6 + x + 2 + 2x + x - 6 + 9

Add like terms and simplify the expression

2x - 6 + x + 2 + 2x + x - 6 + 9

6x - 1

Step-by-step explanation:

Answer:

[tex]\left \{ {{x=0} \atop {y=2}} \right.[/tex]

Step-by-step explanation: [tex]\left \{ {{4x-y=-2} \atop {2x+y=2}} \right.[/tex]

Add the two equations

[tex]4x-y+(2x+y)=-2+2[/tex]

Remove parentheses

[tex]4x-y+2x+y=-2+2[/tex]

Cancel one variable

[tex]4x+2x=-2+2[/tex]

Apply the Inverse Property of Addition

[tex]4x+2x=0[/tex]

Combine like terms

[tex]6x=0[/tex]

Divide both sides by the equation by the coefficient of variable

[tex]x=0[/tex]

Substitute into one of the equations

[tex]2\times0+y=2[/tex]

Apply Zero Property of Multiplication

[tex]y=2[/tex]

The solution of the system is

[tex]\left \{ {{x=0} \atop {y=2}} \right.[/tex]

I hope this helps you

:)

The mean number of cloudy days that can be found in Pittsburgh during the month of June is 7 days.

Since about 56% of the days in a year are cloudy, the number of cloudy days will be:

= 56% × 365

= 204 days

Therefore, the mean number of cloudy days during the month of June will be:

= 204/30

= 6.8 = 7 days

The mean number of cloudy days during the month of June will be 7 days.

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The radius of the circle of the provided equation, after comparing it with the standard equation of the circle, is 2.

The equation of the circle is the equation which is used to represent the circle in the algebraic equation form with the value of center point in the coordinate plane and measure of radius.

The standard form of the equation of the circle can be given as,

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Here (h,k) is the center of the circle and (r) is the radius of the circle.

The given equation of the circle is,

[tex]x^2+ y^2 +8x-6y +21=0[/tex]

Add number 16 and 9 both sides of the equation to complete the square.

[tex]x^2+ y^2 +8x-6y +21+16+9=16+9\\x^2+8x+16+ y^2 -6y +9=16+9-21\\(x+4)^2+(y-3)^2=4\\(x+4)^2+(y-3)^2=2^2[/tex]

Compare it with the standard equation of the circle, we get,

[tex]h=-4\\k=3\\r=2[/tex]

Hence, the radius of the circle of the provided equation, after comparing it with the standard equation of the circle, is 2.

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The value of the account in 2019 is $1398.

The formula that can be used to determine the growth rate is:

g = (FV / PV)^1/n - 1

Where:

(1060 / 750)^1/5 - 1 = 7.164%

The formula for calculating future value:

FV = P (1 + r)^n

$750 x ( 1.07164)^9 = 1398

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Answer: before I answer this do you need it in cubic feet or inches?

Step-by-step explanation:

Answer:

1,415.09 ft3

Step-by-step explanation:

First you would start off by finding the area of the circle. 13 squared is 169. Then you would multiply it by 3.14. You now have 530.66. Then you multiply it by 8 giving you 4,245.28. Then multiply that number by 1/3 which gives you 1,415.09 ft3.

Hope this helps!

Answer: 6

Step-by-step explanation:

A'B' = AB, and B'C' = BC. So A = (1/2)(3)(4)=6.

Answer:

2 vertically and -11 horizontally

Explanation:

the graph shifts 2 vertically and -11 horizontally

note: vertically is up ↑ and bottom ↓ , horizontal is right → and left ←

2 vertical and -11 horizontal.

Take one point of 1 (I chose the bottom left corner) and move up (vertical) two times, and left eleven times (horizontal).

The equation would be (x-11, y+2)

Answer:

B

Step-by-step explanation:

angle 1=180°-128°=52°

angle2=128°-68°=60° or angle2=180°-68°-angle1=60°

Answer:

144620453 cubic yards

Step-by-step explanation:

the side lengths of the cube are 524.9

the equation for the volume of a cube is the side length to the third power

so V=s^3

then plug in the number

V=524.9^3 plug into a calculator to get 144620453.2 then round to the nearest cubic yard so the answer is 144620453 cubic yards

Hope this helps! :)

How to verify equivalent fractions? If two fractions are equivalent, then the product of one's numerator and the other's denominator is equal to the product of one's denominator and the other numerator. 1 x 12 = 3 x 4. So, 1/3 and 4/12 are equivalent fractions.

Answer:

C  

Step-by-step explanation:

the third one .. or whichever looks like this -x 1 2 3 4 5

y 5 25 125 625 3125

Table C represents a linear function. Therefore, the correct option is option C among all the given options.

A straight line just on coordinate plane is represented by a linear function. As an illustration, the equation y = 3x – 2 depicts a linear function because it is a straight line in the coordinate plane. This function can be expressed as f(x) = 3x - 2 since y can indeed be replaced with f(x).

We will discover what a linear function is in this article, along with information on its graph, domain, or range. Also, we will learn how to recognize a linear function as well as calculate its inverse. A $50 one-time cost plus $7 per T-shirt are what a t-shirt firm charges to put logos on T-shirts. Table C represents a linear function.

Therefore, the correct option is option C among all the given options.

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Answer:

i got it right⬇️

Jennifer's January finance charge will be $0.6717 more if it is calculated using the previous balance method.

Previous balance method: Interest charges are based on the amount owed at the beginning of the previous month's billing cycle.

Adjusted balance method: Based on finance charges on the amount(s) owed at the end of the current billing cycle after credits and payments have been posted.

The total amount on which interest will be applied using the previous balance method = 807.94+41.81+75+18.65 = $943.4

So, interest levied on this= 943.4*10.22*(30/360)*(1/100)= $8.0346

Now, the total amount on which interest will be applied using the adjusted balance method = 807.94+41.81+75+18.65-53.88-25 = $864.52

So, interest levied on this = 864.52*10.22*(30/360)*(1/100)= $7.3628

Difference between charges by previous balance method and adjusted balance method = 8.0346-7.3628 = $0.6717

Therefore, Jennifer's January finance charge will be $0.6717 more if it is calculated using the previous balance method.

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Answer:92,817,765

Step-by-step explanation:Arrange the numbers one on top of the other and line up the place values in columns. The number with the most digits is usually placed on top as the multiplicand.

Starting with the ones digit of the bottom number, the multiplier, multiply it by the last digit in the top number

Write the answer below the equals line

If that answer is greater than nine, write the ones place as the answer and carry the tens digit

Proceed right to left. Multiply the ones digit of the bottom number to the next digit to the left in the top number. If you carried a digit, add it to the result and write the answer below the equals line. If you need to carry again, do so.

When you've multiplied the ones digit by every digit in the top number, move to the tens digit in the bottom number.

Multiply as above, but this time write your answers in a new row, shifted one digit place to the left.

When you finish multiplying, draw another answer line below your last row of answer numbers.

Use long addition to add your number columns from right to left, carrying as you normally do for long addition.

Long Multiplication with Decimals

Long multiplication with decimals using the standard algorithm has a few simple additional rules to follow.

Count the total number of decimal places contained in both the multiplicand and the multiplier.

Ignore the decimals and right align the numbers one on top of the other as if they were integers

Multiply the numbers using long multiplication.

Insert a decimal point in the product so it has the same number of decimal places equal to the total from step 1.

Answer:

Step-by-step explanation:

Line up the numbers:

[tex]\begin{matrix}\:\:&6&7&2&9\\ \times \:&\:\:&\:\:&8&3\end{matrix}[/tex]

-------------------------------
[tex]\frac{\begin{matrix}\:\:&\:\:&\:\:&2&\:\:\\ \:\:&6&7&2&\textbf{9}\\ \times \:&\:\:&\:\:&8&\textbf{3}\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\:\:&7\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&\:\:&\:\:&\textbf{2}&\:\:\\ \:\:&6&7&\textbf{2}&9\\ \times \:&\:\:&\:\:&8&\textbf{3}\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&8&7\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&2&\:\:&2&\:\:\\ \:\:&6&\textbf{7}&2&9\\ \times \:&\:\:&\:\:&8&\textbf{3}\end{matrix}}{\begin{matrix}\:\:&\:\:&1&8&7\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&2&\textbf{2}&\:\:&2&\:\:\\ \:\:&\:\:&\textbf{6}&7&2&9\\ \times \:&\:\:&\:\:&\:\:&8&\textbf{3}\end{matrix}}{\begin{matrix}\:\:&\:\:&0&1&8&7\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&\:\:&\:\:&\:\:&7&\:\:\\ \:\:&\:\:&6&7&2&\textbf{9}\\ \:\:&\times \:&\:\:&\:\:&\textbf{8}&3\end{matrix}}{\begin{matrix}\:\:&2&0&1&8&7\\ \:\:&\:\:&\:\:&\:\:&2&\:\:\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&\:\:&\:\:&2&\textbf{7}&\:\:\\ \:\:&\:\:&6&7&\textbf{2}&9\\ \:\:&\times \:&\:\:&\:\:&\textbf{8}&3\end{matrix}}{\begin{matrix}\:\:&2&0&1&8&7\\ \:\:&\:\:&\:\:&3&2&\:\:\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&\:\:&5&\textbf{2}&7&\:\:\\ \:\:&\:\:&6&\textbf{7}&2&9\\ \:\:&\times \:&\:\:&\:\:&\textbf{8}&3\end{matrix}}{\begin{matrix}\:\:&2&0&1&8&7\\ \:\:&\:\:&8&3&2&\:\:\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&5&\textbf{5}&2&7&\:\:\\ \:\:&\:\:&\textbf{6}&7&2&9\\ \times \:&\:\:&\:\:&\:\:&\textbf{8}&3\end{matrix}}{\begin{matrix}\:\:&2&0&1&8&7\\ \:\:&3&8&3&2&\:\:\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&5&5&2&7&\:\:\\ \:\:&\:\:&6&7&2&9\\ \times \:&\:\:&\:\:&\:\:&8&3\end{matrix}}{\begin{matrix}\:\:&2&0&1&8&7\\ 5&3&8&3&2&\:\:\end{matrix}}[/tex]

[tex]\frac{\begin{matrix}\:\:&\:\:&6&7&2&9\\ \:\:&\times \:&\:\:&\:\:&8&3\end{matrix}}{\begin{matrix}0&2&0&1&8&7\\ 5&3&8&3&2&0\end{matrix}}[/tex]

[tex]=558507[/tex]

Add Decimal Back:

[tex]=55.8507[/tex]

Answer:

it would be a 9 piece shape so to make it 2/9 just shade 2

Step-by-step explanation:

Answer:

C. √150 and √160

Step-by-step explanation:

12 squared is 144 and 13 squared is 169, so the numbers under the radicals must be between these numbers. The question must mean that the range is exclusive so only C can be correct.

Answer: 262.50  is 8.75% of 3000

Step-by-step explanation:

Solution for 262.50 is what percent of 3000:

262.50:3000*100 =

(262.50*100):3000 =

26250:3000 = 8.75

Now we have: 262.50 is what percent of 3000 = 8.75

Question: 262.50 is what percent of 3000?

Percentage solution with steps:

Step 1: We make the assumption that 3000 is 100% since it is our output value.

Step 2: We next represent the value we seek with  x


Step 3: From step 1, it follows that 100% = 3000.


Step 4: In the same vein, x% = 262.50 .

Step 5: This gives us a pair of simple equations:

100% = 3000(1).

x% = 262.50(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

100%/x% = 262.50%/3000

x = 8.75% Therefore, 262.50  is 8.75% of 3000

Mark Me Brainliest <3 Best Of Luck.

Based on the information given Terri's Run Rate is $96,000.

Using this formula

Run rate=Revenue for the Period × Number of months in a year

Where:

Revenue for the Period =$8,000

Number of months in a year=12 months

Let plug in the formula

Run rate=$8,000×12 months

Run rate=$96,000

Inconclusion Terri's Run Rate is $96,000.

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Answer:

$96,000

Step-by-step explanation:

took the test

Answer:

46,44

Step-by-step explanation:

divide, then round up and down

Answer:

see explanation

Step-by-step explanation:

since X is the midpoint of PQ , then

PX = QX ( substitute values )

4x + 15 = 7x + 6 ( subtract 4x from both sides )

15 = 3x + 6 ( subtract 6 from both sides )

9 = 3x ( divide both sides by 3 )

3 = x

Then

PX = 4x + 15 = 4(3) + 15 = 12 + 15 = 27

XQ = 7x + 6 = 7(3) + 6 = 21 + 6 = 27

PQ = PX + XQ = 27 + 27 = 54

Answer:

PX = 4x + 15 = 4(3) + 15 = 12 + 15 = 27

XQ = 7x + 6 = 7(3) + 6 = 21 + 6 = 27

PQ = PX + XQ = 27 + 27 = 54

Step-by-step explanation:

Since X is the midpoint of PQ , then

PX = QX ( substitute values )

4x + 15 = 7x + 6 ( subtract 4x from both sides )

15 = 3x + 6 ( subtract 6 from both sides )

9 = 3x ( divide both sides by 3 )

3 = x

Then

PX = 4x + 15 = 4(3) + 15 = 12 + 15 = 27

XQ = 7x + 6 = 7(3) + 6 = 21 + 6 = 27

PQ = PX + XQ = 27 + 27 = 54

Hence, the correct answers are: PX = 4x + 15 = 4(3) + 15 = 12 + 15 = 27

XQ = 7x + 6 = 7(3) + 6 = 21 + 6 = 27 PQ = PX + XQ = 27 + 27 = 54