If f(x)=3x^2 and g(x)=4x+2 what is the value of (f+g)(-1)

Answers

Answer 1

Answer:

1

Step-by-step explanation:

first, you have to combine the two equations.

f(x)+ g(x)

3x^2 +4x+2= (that haha)

now substitute -1 for x

3(-1)^2 +4(-1)+2

(3×1) +(-4)+2

3-4+2

=1

HOPE IT HELPS YOU :)


Related Questions

I’ll give as many points as possible please help

xy^2 (x^2y^3+5xy-4)

Answers

Answer:

x^3y^5 + 5x^2y^3 - 4xy^2

Step-by-step explanation:

xy^2 (x^2y^3+5xy-4)

xy^2x^2y^3 + xy^2 x 5xy - 4xy^2

xy^2x^2y^3 = yx^2y^5

xy^2 x 5xy = 5x^2y^3

x^3y^5 + 5x^2y^3 - 4xy^2

Is that what you want? Let me know.

If an item is marked 15% off to a sale price of $12.75 ,What is the price of the item before the discount

Answers

Answer:

$85

Step-by-step explanation:

Divide 15% by $12.75

Change 15% into a decimal by multiplying it by 100

$12.75/0.15= $85

The side lengths of four triangles are listed below. Determine whether each triangle is a right triangle Choose Yes or No for each set of side lengths.
a. 4,5,6 Yes No
b. 5, 12, 13 Yes No
C. 8, 15, 17 Yes No
d. 10, 15, 20 Yes No​

Answers

Answer:

yes, yes, no, no

Step-by-step explanation:

In order to determine if it’s a right triangle, use the following formula:

c2= a2 + b2

A. 16 + 25 = 36 NO.
B. 25 + 144 = 169 YES.
C. 64 + 225 = 289 YES.
D. 100 + 225 = 400 NO.

You basically multiply each number by itself and then;
Add a2 + b2.
If the sum matches c2,
Then it is a right triangle!

Find the length of the third side. If necessary, round to the nearest tenth?

Answers

Answer:

3

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Please help! Due very soon! help ASAP!!!

Answers

B and C are correct.

Answer:

B and C

Step-by-step explanation:

A, when x = 0, y = 5

B, when x = 4, y = 3

C, when x = 12, y = -1

D, when x = 1, y = 9/2

3.14 x 6.25 step by step

Answers

Answer:

Step-by-step explanation:

3.14x6.25

19.625

Answer:

19.625

Step-by-step explanation:

can somebody help me?

Answers

The it the it the it the it the it the it shushsuddbrhtbrvvtbdhxhruh ÷ bfhdhedhxucududueueu the it the cauldron makes it able to brong water in the netherbsbsjjdhdxuhahabsb

In ABCD, the measure of D=90°, CD = 5.4 feet, and DB = 2.2 feet. Find the measure
of C to the nearest degree.

Answers

Answer:

the answer is 22

gggggggggggggggfffffgg

The expression 7+3x+4 represents the perimeter of the triangle. Simplify the expression.



7+3x+4 =

Answers

Answer:

-3.6

Step-by-step explanation:

Simplifying

7 + 3x + 4 = 0

Reorder the terms:

7 + 4 + 3x = 0

Combine like terms: 7 + 4 = 11

11 + 3x = 0

Solving

11 + 3x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-11' to each side of the equation.

11 + -11 + 3x = 0 + -11

Combine like terms: 11 + -11 = 0

0 + 3x = 0 + -11

3x = 0 + -11

Combine like terms: 0 + -11 = -11

3x = -11

Divide each side by '3'.

x = -3.666666667

Simplifying

x = -3.666666667

The mean of five numbers is 4.
The five numbers are 1, 3,5,2 and x.
Find x.

Answers

Answer:

9

Step-by-step explanation:

In Order to gain the mean you would follow the formula:

Total Sum of all Numbers added together / Amount of integers.

In this case, you have 5 numbers 1, 3 , 5 , 2 , x .

I know that the overall sum of all your integers added together must equal 20, as 20 / 5 = 4.

1 + 3 + 5 + 2 = 11.

Therefore x must be 9.

1 + 3 + 5 + 2 + 9 = 20

20 / 5 = 4.

Hope this helps and mark as brainilest if found useful.

It’s 9 I hope this helps u

what's is the slope of the line? please answer​

Answers

Answer:

The answer to your question is: -2/3

at a clothing store, levi's jeans are on sale for 40% off. sales tax is 7%. which expression will calculate the total cost of levi jeans with an original price of x?​

Answers

Given:

Discount = 40%

Sales tax = 7%

To find:

The total cost of levi jeans with an original price of x.

Solution:

Let x be the original price of the jeans. Then the price after 40% discount is

[tex]Price=x-40\%\text{ of }x[/tex]

[tex]Price=x-\dfrac{40}{100}x[/tex]

[tex]Price=x-0.4x[/tex]

[tex]Price=0.6x[/tex]

The price after 7% of sales tax.

[tex]Price=0.6x+7\%\text{ of }0.6x[/tex]

[tex]Price=0.6x+\dfrac{7}{100}\times 0.6x[/tex]

[tex]Price=0.6x+0.042x[/tex]

[tex]Price=0.642x[/tex]

Therefore, the total cost  of the levi jeans with an original price of x is represented by the expression 0.642x.

What is the perimeter of the figure shown above?
a. 17 cm
C. 15 cm
b. 21 cm
d. 19 cm

Answers

Answer:

21cm

Step-by-step explanation:

Add everything together,

The top one is 5cm because of the bottom measurement is the same length

12 to the 3rd power divided by 12 to the 7th power ​

Answers

Answer:

0.000048..............

Answer:

0.00004822

Step-by-step explanation:

12^7= 35,831,808

12^3= 1728

help me with this plssss I dont understand ​

Answers

Answer:

y = 18

a = -2

Step-by-step explanation:

Hello There!

For the first one we need to create an equation to solve for y

23+7=y+12

30=y+12

isolate the variable using inverse operations

subtract 12 from each side

30-12=18

we're left with y = 18

for the second one we need to create an equation to solve for a

3+15+a=8+8+8

3+15=18

8+8+8=16

16=18+a

step 1 subtract each side by 18

16-18=-2

we're left with a = -2

i agree with the person above it seems very accurate

John bought 18 pizzas. Mitchel bought 12 pizzas. What percent of the total number of pizzas Mitchel buy?

Answers

Answer: 40%

Step-by-step explanation: The total number of pizzas is 12 + 18 = 30. Mitchel bought 12 of those 30 pizzas. To find the percentage you do the portion/total. Thus 12/30 = 0.4, as a proportion. To turn a proportion into a percentage simply multiply by 100. 0.4 * 100 = 40%

PLEASE HELP
what is the slope of the line?​

Answers

Answer I think = 4/5x + 1.5
Slope is 4 over 5

The store ordered small posters and large posters to promote their opening. 12 times as many small posters were ordered as large posters. If there were 48 large posters, how many more small posters were ordered than large posters.

\

Answers

Answer:

I think it is 576 small posters.

Step-by-step explanation:

48×12= 576

What are 2 things you notice about the non-linear equation?

Answers

Answer:

An equation in which the maximum degree of a term is 2 or more than two is called nonlinear equations. For example 3x2 + 2x + 1 = 0, 3x + 4y = 5, this are the example of nonlinear equations, because equation 1 have highest degree of 2 and second equation have variable x and y.

Which is the volume of the solid?

Answers

Answer: the answer is A

Step-by-step explanation:

Need help ASAP please!

Answers

Answer:

5

Step-by-step explanation:

See the attached image.

ill mark brainlistnplss help

Answers

Chlorophyll absorbs the colors red and blue the most.

Hope this helps.

In ΔLMN, l = 810 cm, m = 620 cm and ∠N=166°. Find the length of n, to the nearest centimeter.

Answers

Answer:

1420

Step-by-step explanation:

delta math

The required length of n is 1419.5 cm which is determined by the Law of Cosines.

What is a Triangle?

Triangle is defined as a basic polygonal shape of a triangle that has three sides and three interior angles.

In triangle ΔLMN,

l = 810 cm, m = 620 cm and ∠N=166°.

We have to determine the length of n

The Law of Cosines as it relates all three sides of a triangle with an angle of a triangle.

n² = l² + m² − 2lm cos(N)

Substitute the values in the above formula and solve for n

n² = 810² + 620² − 2 × 810 × 620 × cos(166°)

n² = 810² + 620² − 104400 × cos(166°)

n = ±1419.5

n = 1419.5, and n = - 1419.5

Neglected the value of n = - 1419.5 because length should not be negative.

n = 1419.5 cm

Learn more about the triangles here:

https://brainly.com/question/17997149

#SPJ2

Write each of the following percents in words. a. 5% b. 34% c. 143% d. 500%

Answers

Answer:

5%=Five percent

34%=Thirty four percent

143%=One hundred forty three percent

500%=Five hundred percent

Hope it helps

Have a great day : )

Mark me brainiest if it had helped you

please help meeeeeeee​

Answers

X is equal to 4 and Y is 2

(20 Points)
In circle P, M^ ADB is 25°.
What is the m^ APB ?
☁︎
A:65
☁︎
B:40
☁︎
C:25
☁︎
D:50

Answers

Given:

In circle P, m∠ADB is 25°.

To find:

The m∠APB.

Solution:

Central angle theorem: According to this theorem, the central angle of an arc is twice of inscribed angle of the same arc.

From the given figure it is clear that the ∠APB is the central angle and ∠ADB is the inscribed angle on the arc AB.

By using the central angle theorem, we get

[tex]m\angle APB=2\times m\angle ADB[/tex]

[tex]m\angle APB=2\times (25^\circ)[/tex]

[tex]m\angle APB=50^\circ[/tex]

Therefore, the correct option is D.

what is 3(x-4)=12x extra letters because it says I need 25 or more

Answers

Answer:

-12=9x

Step-by-step explanation:

PLEASE HELP THIS ASSIGNMENT IS VERY CONFUSING

Answers

Answer:

the value of x is 10

Answer:

10

Step-by-step explanation:

Since this is a 90 degree angle (indicated by the red box), we can put the two values added equal to 90

70+2x=90

Solve for x

2x=20

x=10

whoever gets this correct gets brainliest

Answers

Answer:

More. Older

Likey

To vote

Less likely. younger

to

vote

Please help!!! Find the side length of a

Answers

Answer:

B

Step-by-step explanation:

√c^2-b^2

√15^2-9^2

√225-81

√144

= 12

B

It’s B -15 because if you do a^2 + b^2= c^2 you’ll get the answer
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