Mathematics College

I need step by step explanation please

I Need Step By Step Explanation Please

Answers

Answer 1
First thing to know is “(f+g)(x)” really means “f(x) + g(x)”.

In your situation,
f(x) + g(x) = (x/2 - 2) + (2x^2 + x -3)

Now, those parentheses are only there to show you where f(x) and g(x) went/came from.

But to finish simplifying that, you just need to combine like terms.

x + x/2 really means 1x + 1/2 x and that’s 3/2 x.
-2+(-3) = -5

So, you end up with 2x^2 + 3/2 x -5

Related Questions

X+1/2y=4
Solve the equation for Y

Answers

Answer:8/1

Step-by-step explanation:

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 8.000 and for x=2.000, the value of y is 4.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 4.000 - 8.000 = -4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

X+1/2y = 4
(X+1)*2y=4*2y
2xy+2y=8y
2*y=8y-2y
2xy=6y
2x=6
X=3

3+1/2y=4
4/2y
Y=16

which expression represents the cost of the mulch based on the radius of the circle

Answers

Answer:

This area is represented by the function m (x), where x is the length of the radius of the circle in feet. The homeowner estimates that he will pay $1.50 per square foot of mulch. This cost is represented by the function g (m), where m is the area requiring mulch.

Step-by-step explanation:

Solve the equation,
31-3n+11 = 8
h =

Answers

Answer:

n = 11.333

Step-by-step explanation:

I'll take it as your "h" was a typo and u want to find n

31-3n+11 = 8

- 3n = 8 - 11 -31

- 3n = - 34

n = 11.333

31-3n+ 11=8

-3n=8-11-31

-3n=-6

3n=6

n=6/3

n=2

Pls help me, I give Brainliest T-T

Answers

Answer:

1. 50

2. 41

3. 14

4. 45

5. 0

6. 20

Answer:

1. 24.4°F

2. 15.4°F

3. -12.4°F

4. 45°C

5. 0°C

6. 20°C

Step-by-step explanation:

1.

[tex]F=\frac{C*9+32}{5}\\\\F=\frac{10*9+32}{5}\\\\F=\frac{90+32}{5}\\\\F=\frac{122}{5}\\\\F=24.4[/tex]

2.

[tex]F=\frac{C*9+32}{5}\\\\F=\frac{5*9+32}{5}\\\\F=\frac{45+32}{5}\\\\F=\frac{77}{5}\\\\F=15.4[/tex]

3.

[tex]F=\frac{C*9+32}{5}\\\\F=\frac{-10*9+32}{5}\\\\F=\frac{-90+32}{5}\\\\F=\frac{-62}{5}\\\\F=-12.4[/tex]

4.

[tex]C=\frac{(F-32)*5}{9}\\\\C=\frac{(113-32)*5}{9}\\\\C=\frac{81*5}{9}\\\\C=\frac{405}{9}\\\\C=45[/tex]

5.

[tex]C=\frac{(F-32)*5}{9}\\\\C=\frac{(32-32)*5}{9}\\\\C=\frac{0*5}{9}\\\\C=\frac{0}{9}\\\\C=0[/tex]

6.

[tex]C=\frac{(F-32)*5}{9}\\\\C=\frac{(68-32)*5}{9}\\\\C=\frac{36*5}{9}\\\\C=\frac{180}{9}\\\\C=20[/tex]

Page No.3
5) Write the following statements in 'if-then' form.
a) In an isosceles triangle, the segment joining the vertex and the mid point of the base
is perpendicular to the base.​

Answers

Answer:

Step-by-step explanation:

If a triangle has two legs of equal length

Then the bisector of the angle between those legs is perpendicular to the third side.

PLS HELPPP WILL GIVE BRAINLIEST

Answers

Answer:

68

Step-by-step explanation:

all explanation you need in the page above

brainliest please

factor the trinomial or state that the trinomial is prime 3a^2 -10a-32

Answers

Answer: (a+2)(3a-16)

Explanation: In the photo. Let me know if you have any questions about what I did! :)

Evaluate 2x − 4 for x = 9.

Answers

Answer:

2x - 4 = 14

When x = 9

Step-by-step explanation:

Use PEMDAS order of operations to solve:

2(9) - 4

= 18 - 4

= 14

help me please right anwsers only pleaseeeeeeee quick

Answers

13)3302 (254

2600

________

702

702

________

× × × ×

Answer:

54

Step-by-step explanation:

compare the numbers using < > or = 74,820__ 103,115​

Answers

74,820 < 103,115

······

Answer:

<

Step-by-step explanation:

a+bx : a=15, b=−4, and x=−3

Answers

Answer:

27

Step-by-step explanation:

a+bx : a=15, b=−4, and x=−3

15+(−4)(-3)

15+12

=27

What percent of 40 is 32? Answer it correct I will give you brainlest
Answer ASAP

Answers

Answer:

125

Step-by-step explanation:

Answer:

80%

Step-by-step explanation:

40p/100=32

40p=3200

p=80

simplify by combining like terms y+9+2b+y+5b+2

Answers

Answer:

not so sure but I guess that's the answer there

Find(f−g)(x) f(x)=x2−6xandg(x)=−2x+3
A x2−4x+3
B x2+4x−3
C x2−4x−3
D x2+4x+3

Answers

Answer:

option C is the answer......

Heyyyyyy someone care to help a poor fella out por favor

Answers

the answer is y=-5+x/2

Which is a list of irrational numbers from least to greatest?
1
V2
1
va'
O V5,
V5,
O V5, 11, 12
ot; ž, v5

Answers

The answer is D, or the last one.

30. Upper Trail is 6.8 kilometers long. Lower trail is 7.25 kilometers long. How much longer is Lower Trail?​

Answers

Answer: The lower trail is 0.45km longer then the upper trail.

Step-by-step explanation: So all you need to do is find the difference between the two lengths. To do that your just going to subtract the greater length by the smaller length. So in this case:

7.25-6.8=0.45

so the lower trail is 0.45km longer then the upper trail.

Which point is on the interior of DEF? point F point H. point D point G​

Answers

F will be your interior

Answer:

Point G

Step-by-step explanation:

Interior is the inside of the geometric shape, which is Point G.

Point H is the exterior of DEF.

what is the value of the digit 4 in the number 84,230?

Answers

Answer:

4,000

Step-by-step explanation:

Answer:

4,000

Step-by-step explanation:

4 is in thousands place value; therefore, the digit 4 represents the number 4,000 in the number 84,230.

Hope this helped you out...have an amazing day! :)

Plz I need help now plz

Answers

Answer:

-147

Step-by-step explanation:

(21) • (-7)

Since it’s a positive times a negative, the answer will be negative

-147

Answer:

Hello!

What is 21 times -7?

Break it down,

[tex]21*-7 = 1*-7 + 20*-7 = -7 - 140 = -147[/tex]

The answer is -147.

No links I need the full answer to the perimeter of the trapezoid below

Answers

Answer:

26

Step-by-step explanation:

All you have to do is add up all the sides and lengths of the rectangle. 7+6+5+8=26

the answer is 26. all you do is add up all sides to get the answer

Plz help I am confused

Answers

Answer:

-32.48

Step-by-step explanation:

Multiply -2.9 by 11.2

whats the scientific notation of 24,010.​

Answers

Answer:

2.401 x 10[tex]^{4}[/tex]

Step-by-step explanation:

24,010 (twenty-four thousand ten) is an even five-digits composite number following 24009 and preceding 24011. In scientific notation, it is written as 2.401 × 104.

5) Simplify the expression (2x - 5y) + (x + y).

Answers

Answer:

3x - 4y

Step-by-step explanation:

(2x - 5y) + (x + y)

2x + -5y + x + y          <--- Let's remove the parentheses

(2x + x) + (-5y + y)    <--- Combine Like Terms

3x - 4y        <--- Final Answer :)

Answer:

(2x *x) + (-5y + y)

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

Please help

Find the equation to the line below.
w
y =
12x-[

Answers

Answer:

y = 4/5 x - 1

Step-by-step explanation:

are you kidding me?

In the diagram below, A8 is parallel to CD. What is the value of y? Help me

Answers

Answer:

C. 108

Step-by-step explanation:

The angles are known as same-side interior angles. They are supplementary angles so their sum is 180°.

[tex]y+72=180\\y+72-72=180-72\\y=108[/tex]

Jdndndnd d dndndnd d s w w wbeneneheh

Answers

Answer:

17

Step-by-step explanation:

If L and M are parallel then the angles will add up to 180 (a straight line), so:

6x+8+4x+2=180

10x+10=180

10x=170

x=17

HELp PLeASE! WITH WORK

Answers

9514 1404 393

Answer:

  d  no

Step-by-step explanation:

The equation of direct variation is a linear (1st-degree) equation. This is a quadratic (2nd-degree) equation, so is not direct variation.

13a+b=b+13a

this is for math

Answers

Answer:

I think it is 13 a to the power of 2 and b to the power of 2

What is the value of the underlined digit? 134,984.35 the underlined digit is 8

Answers

Answer:

80

Step-by-step explanation:

Other Questions
Help for brainliest plz identify the error in the following sentence:1. On the back was written grandmothers contempt for the girl which was the first child of her son. Does golden view the changes he expects as good or bad please help if u can! can anyone tell me the answer of these whole question? thank you so much! 9. 101112Yesterday, Jessica had 95 baseball cards. Today, she got d more. Using d, write an expression for the total number of baseball cards she has now. for the line described y = 3x 6 the y-intercept is _ and the slope is _ what is the rate of change of the function represented by the table? Solve S = 2nrh for h Southernmost active volcano on Earth Rewrite the paragraph above using correct punctuation and capitalization. what is the vision and mission statement of American Red Cross Association 2|3x2|=14 (solve for x) Describe is used in which sentence?A. I tried to describe from Greek to English,B. I can't begin to describe the wonderful taste of this cheesecake,C. The plant can describe for other plants. 1. Humans use natural resources forA. foodB. shelter and clothingC. entertainmentD. All of the above. HELP MEEEEE PLEASEEEEEE!!! Point b has cordinates (-2,-5) after transition 4units down a reflection across the y axis and a transition 6units up what are the cordinates of the image How does the amount of milk you drink affect the strength of your growth proper hypothesis Triangle WXY is dilated by a scale factor of 3/4 to form triangle W'X'Y'. Side Y'W' measures 34.5 What is the measure of side YW? #3 Q is the midpoint of PR, PQ = 2x, and PR = 8x - 12. Find X, PQ, and PR.(x - 12 = 2x2x = 8x 12+ 8x - 12(Number 3!!!!)