what is the sum of 5x2+3x-7 and 12x + 12

Answers

Answer 1

Answer: 5x^2 +15x + 5

Step-by-step explanation:

(5x^2 + 3x - 7) + (12x + 12)

=> 5x^2 +15x + 5


Related Questions

Determine the slope and the y-intercept of the line represented by the equation y=-7/9x +3 ​

Answers

Answer:

Slope: -7/9

Y-intercept: 3

Step-by-step explanation:

y = -7/9x + 3

how many solution/s does ×+7=×+11​

Answers

No solutions. Seven doesn’t equal eleven so no matter what you put into the variable it will always be different. (If you don’t get it try putting in the numbers 1,2, or 3 for x and you’ll see why it can never be the same)

The cylinder shown here has a height of 7 cm and a radius of 4 cm

How many cubic centimeters of fluid can fill this cylinder?

Answers

Answer: 175.9 (1decimil place)

Step-by-step explanation: Volume of cylinder= πr2h

V= π(4)x2x7= 175.9291886 (175.9 1dp) cm cubed.

1/5 fraction as demicals​

Answers

Answer:

the answer of this question will be 0.2

Answer:

0.2

Step-by-step explanation:

5/5= 1

1/5 =1÷5

     =0.2

Megan has $10,000 to invest for 5 years and she found an
interest rate of 5%. Which equation will show the amount
she's saved at the end of 5 years if the interest rate
compounds monthly?
a. y = 10000(1 +.512)(5)(5)
b. y = 10000(1 +.05
+,053) (12)(5)
C. y = 10000(1 + 05.12) (1245),

Answers

It is y- that means a

help quickly please!! in the cafeteria, tables are arranged in groups of 4, with each table seating 6 students how many students can sit at 8 groups of tables? write the rule you used to find the number of students.

Answers

Answer:

The answer is 320.

the rule i used was y=32x and x represents the # of groups of tables.

Write 1 and 3/100 as a decimal?

Answers

Answer:

1.03?

Step-by-step explanation:

3/7−1/12 is it greater than 1/2

Answers

Answer:

3/7 - 1/12 is equal to 29/84, which is less than 1/2, so no, it is not greater than 1/2.

Let me know if this helps!

no it is less than 1/2

please help!! I need step by step explaining too so I can understand thank you ​

Answers

Answer:

Area of a circle=πr*r

cause the side of the square= Diameter of the circle,

so r=16/2=8

so the area=π8*8=64π

My little brother needs help what option is it

Answers

The correct one would be option 1

Please help.
Is Algebra.

Answers

Answer:

2

Step-by-step explanation:

[tex]( {4y}^{?} )^{3} = 64 {y}^{6} \\ \\ ( {4y}^{?} )^{3} = ( {4y}^{2} )^{3} \\ \\ {4y}^{?} ={4y}^{2} \\ \\ {y}^{?} ={y}^{2} \\ \\ ? = 2[/tex]

The answer to this is 2.

The two triangles are similar.

What is the value of x?

Answers

Answer:

x = 10

Step-by-step explanation:

set up a proportion based on corresponding sides:

4x+ 2/3x = 28/20

cross-multiply:

28/20 can be simplified to be 7/5

5(4x + 2) = 7(3x)

20x + 10 = 21x

10 = x

X=10 that’s it the answer

FREE BRAINLIEST! if you can answer this correctly ill give you brainliest and answer some of the questions you have posted :) thank you very much!!! (22pts)

Answers

Answer:

36 percent

Step-by-step explanation:

hi again

Answer:

36 percent

Step-by-step explanation:

There are a total of 25 muffins.

9 out of 25 muffins that were sold were carrots.

Divide 25/9 and you get 0.36

Multiply that by 100 and you get 36.

So %36 were carrot

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Help me with this, Its in the doc below

Answers

Answer:

https://faq.brainly.com/hc/en-us/articles/360014661139.

Step-by-step explanation:

Anyone know this?? Question: find the area of the shape. Don’t forget your units and use 3.14 if you need to use pi.

Answers

Quick answer :

Area of this shape = 614²

Answer with steps :

Length of side of the first square = 10

It's area :

[tex] =\tt side \times side[/tex]

[tex] = \tt10 \times 10[/tex]

[tex] = \tt {100}^{2} [/tex]

Thus, the area of the first square = 100²

Length of the side of the second square = 10

It's area :

[tex] = \tt \: side\times side[/tex]

[tex] =\tt 10 \times 10[/tex]

[tex] = \tt{100}^{2} [/tex]

Thus, the area of the second square = 100²

Length of the side of the third square = 10

It's area :

[tex] =\tt side \times side[/tex]

[tex] = \tt 10 \times 10[/tex]

[tex] = \tt {100}^{2} [/tex]

Thus, the area of the third square = 100²

(pi value = 3.14)

Radius of the first semicircle = 10 cm

It's area :

[tex] = \tt \: \frac{\pi {r}^{2} }{2} [/tex]

[tex] = \tt \frac{3.14 \times 10 \times 10}{2} [/tex]

[tex] = \tt\frac{3.14 \times 100}{2} [/tex]

[tex] =\tt \frac{314}{2} [/tex]

[tex] =\tt {157}^{2} [/tex]

Thus, the area of the first semicircle = 157²

Area of the second semi circle :

= area of the first semicircle

= 157²

Thus, the area of the second semicircle = 157²

Total area of the figure :

= Area of the 3 squares + Area of the two semi circles

[tex] =\tt 100 + 100 + 100 + 157 + 157[/tex]

[tex] = \tt300 + 314[/tex]

[tex] = \tt {614}^{2} [/tex]

Therefore, the total area of the figure = 614²

Terri borrows $3500 at an interest rate of 3% and plans on paying her loan over 4 years. Using the interest formula, what is the total amount Terri will have to repay on both the loan and the interest?

Answers

3920

Step-by-step explanation:

3500×.03=?×4. 3500÷?=?

One employee of a computer store is paid a base salary of MK21,500 a month plus an 8% commission on all sales over MK70,000 during the month. How much must the employee sell in 1 month to earn a total of MK31,700 for the month?

Answers

Answer:

I think the total sales must equal $32000

Step-by-step explanation:

Given,

Base Salery = $2000

Commission = 8% in sales above 7000

To find out how much sales should be made so that the total earnings are $4000. Let the sales be x. Then the required linear equation is

2000 + 0.08 ( x - 7000) = 4000

2000 + 0.08x - 560 = 4000            (Using distributive property)

1440 + 0.08x = 4000                       (Simplifying)

0.08x = 2560                                  (Subtacting 1440 from both sides)

x = 2560/0.08                              (Dividing both sides by 0.08)

x = 32000

Thus, total sales must equal $32000

I hope this help you!

Knowing that 36 x 42 = 1,512

What is the product of 3.6 x 4.2

Answers

The product of 3.6 x 4.2 is 15.12

Answer:

15.12

Step-by-step explanation:

15.12

Number of Amusement Park Visits
The dot plot shows the number of times students in Mr.
Martin's sixth-grade class went to the amusement park
this summer
How many students visited the amusement park 4
times?
O 1 student
O 2 students
O 3 students
O 4 students
N+
1
3
4

Answers

2 students is the equal identification the number of the students and milo

On a coordinate grid, point R is at (−6, 2) and point S is at (8, 2). The distance (in units) between points R and S is ______. (Input only whole numbers, such as 2.)

Answers

Answer:

Step-by-step explanation:

Difference of x-coordinates = -6-8 = -14

Difference of y-coordinates = 2-2 = 0

Distance = √((-14)^2+0^2) = 14

Help me with a question

Answers

Answer: yea

Step-by-step explanation:

10x + by = 28
10x + 5y = 30​

Answers

Answer:

I think its 30

Step-by-step explanation:

Every year Ethan earns 38,428. Each year he spends 21,728 on expenses. How much money should he have left over?

Answers

Answer:

16,700

Step-by-step explanation:

Given that,

Earning of Ethan = 38,428

Ethan spends 21,728 on expenses.

We need to find the amount of money he has left over. It can be calculated as follows :

Left money = Earning - Spent

= 38,428 - 21,728

= 16,700

So, he has left over 16,700.

Solve for x, round to the nearest hundredths place.

Answers

Answer:

2.33333

Step-by-step explanation:

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NEED HELP ASAP

Tickets to a family concert cost $10 for adults and $3 for children. The concert
organizers collected a total of $900 from ticket sales.
Given the function 10A + 3C = 900:
A) Write an equation to represent C as a function of A. (In essence, solve the equation
for C).
B) Write an equation to represent A as a function of C. (In essence, solve the equation
for A)
**Use math type to type your answer**

Answers

Answer:

3C=900-10A

Step-by-step explanation:

The given equation can be written to represent C as a function of A and A as a function of C as  C = 300 - 10/3A and  A = 90 - 3/10C respectively.

What is a function?

A function y = f(x) is a one to one relationship between two sets X and Y where the set X is called the domain and Y the range of function f(x) ans x ∈ X and y ∈ Y.

(a) The function for the cost of tickets is given as 10A + 3C = 900.

It can be written to represent C in terms of A as,

10A + 3C = 900

⇒ 3C = 900 - 10A

⇒ C = 300 - 10/3A

(b) It can be written to represent A in terms of C as,

10A + 3C = 900

⇒ 10A = 900 - 3C

⇒ A = 90 - 3/10C

Hence, the given equation can be rewritten as C = 300 - 10/3A and  A = 90 - 3/10C respectively.

To know more about function click on,

https://brainly.com/question/21145944

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Sales tax on an item is a percent *

Answers

Answer:

Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: item or service cost x sales tax ( decimal form) = total sales tax. Then add the total of the sales tax to the item or service cost to get your total cost

can someone help me with this problem im stuck..

Answers

9514 1404 393

Answer:

  100% is an integer multiple of 10%

Step-by-step explanation:

100% is not an integer multiple of 30%, so it is difficult to use 30% directly to determine the value of 100%. Dividing 30% by 3 to get 10% then gives you a value that can be multiplied by 10 to find 100%.

Li put $75 into his savings account. The money was 1/3 of his paycheck Which equation could be used to find the amount of money, p, in dollars, on his paycheck?

Answers

Answer:

The amount of money in his paycheck was $ 225.

Step-by-step explanation:

Given that Li put $ 75 into his savings account, and said money was 1/3 of his paycheck, to determine which equation could be used to find the amount of money, p, in dollars, on his paycheck, the following reasoning must be performed mathematical:

75 / (1/3) = P

75 / 0.333 = P

225 = P

Thus, the amount of money in his paycheck was $ 225.

A number is equal to 3 times a smaller number. Also, the sum of the smaller number and 4 is the larger number. The
situation is graphed on the coordinate plane below, where x represents the smaller number and y represents the
larger number


Answers

Answer:

The answer is that in my case y (the smaller number) is 2 and x (the bigger number) is 6

Step-by-step explanation:

The equations are x=3*y and y+4=x. This makes y=2 and x=6.

how to write this in slope intercept form​

Answers

Answer: y = 10x + b

Explanation: slope intercept form is (y = mx + b) since you have to plug-in the 10/hour, the equation would need to be $10 depending on how much hours. But, we don’t know how much hours so that would be so we put that as x (10x). Then , just plug-in the rest of the variables and that would bring you with y = 10x + b. Hope this is right :)

(Hope this helps!)
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