Mathematics High School

f(x) = x+2
g(x) = 3x

workout the value of gf(5)

Answers

Answer 1

Answer:

g(5) = 15 and f(5) = 7

Step-by-step explanation:

f(5) = x + 2

f(5) = 5 + 2

f(5) = 7

g(5) = 3x

g(5) = 3(5)

g(5) = 15

plz mark as brainliest if correct!!!

Answer 2

Answer:

21

Step-by-step explanation:

because firstly u substitute 5 into x in the f equation

so it will be f(x)=5+2=7

the substitute 7 into the g equation

so g(x)= 3 x 7= 21

Related Questions

On a map, 3 inches represents 50 miles. Which proportion can be used to find the actual distance represented by 5 inches on the map?
StartFraction 3 over 50 EndFraction = StartFraction x over 5 EndFraction
StartFraction 3 over 50 EndFraction = StartFraction 5 over x EndFraction
StartFraction 3 over x EndFraction = StartFraction 50 over 5 EndFraction
StartFraction x over 3 EndFraction = StartFraction 50 over 5 EndFraction

its b btw

Answers

Answer:

3/50

Step-by-step explanation:

Answer:

104

Step-by-step explanation:

i took the assignment<3

Do the graphs of y=2^x and y=10^x intersect? How many times? Explain. A. Yes; the graphs intersect once at (0, 1). B. Yes; the graphs intersect twice at (0, 1) and (1, 10). C. Yes; the graphs intersect three times at (0, 1), (1, 2), and (1, 10). D. No; the graphs do not intersect.​

Answers

A: yes the graphs intersect once

HELP A BROTHER OUT PLEASE Which is equivalent to 8s+20t by the distributive property?

Answers

Answer:

4(2s +5)

Step-by-step explanation:

.............

13) Are these comparisons TRUE or FALSE? 1/4< 3/4 7/3 > 5/3 2/3 > 2/8​

Answers

Answer:

They are all correct

Step-by-step explanation:

Answer:

Umm...

Step-by-step explanation:

1/4<3/4                              True

7/3>5/3                                           True

2/3>2/8                                    True

If you had 11 pieces of licorice to share equally among 5 people, how much licorice would each person get?

Answers

Answer:

everyone would get 2 and there would be 1 leftover

Step-by-step explanation:

2 for each and 1 left over

pls help with this problem

Answers

Answer:

d

Step-by-step explanation:

Answer:

hi its D

Step-by-step explanation:

you are seeing two similar things and each of them are showing 3 parts of 8 parts of the shape so

[tex]2 \times \frac{3}{8} [/tex]

h(x) = x^2 + 2 - x
g(x) = 4x + 5
find (h - g) (x/3)

Answers

Answer:

 x^2 - 15x - 27

----------------------  (Answer C)

             9

Step-by-step explanation:

(h - g)(x) is the difference between funcions h and g.  Subtract g(x) from h(x) as follows:

 x^2 + 2 - x

-(4x + 5)

-------------------

x^2 - 5x - 3  =  (h - g)(x)

To find (h - g)(x/3), substitute x/3 for x in x^2 - 5x - 3  =  (h - g)(x), obtaining:

(x/3)^2 - 5(x/3) - 3

We must expand this and then combine like terms:

x^2/9 - (5/3)x - 3

The LCD of these three terms is 9.  The first term stays as is.  The second term becomes (15/9)x.  The third term becomes 27/9.

Combining these three terms, all with denominator 9, we get:

 x^2 - 15x - 27

----------------------

             9

This matches Answer C.


someone please help me

Answers

Answer:

AC should be 42

Step-by-step explanation:

35 divided by 7 is 5 same goes with 56 divided by 8 so 6x7 is 42

the Scale factor should be 7:1

Answer:

Line AC's length is 42

Step-by-step explanation:

35 divided by 5 is 7

56 divided by 8 is 7

42 divided by 6 is 7

Which rational exponent represents a square root?
А. 1/3
B. 1/2
C. 3/2
D. 1/4

Answers

The exponent 1/2 represents a square root. The number on top of the fraction is the and the denominator represents the index of the radical.

Find the m\angle EFGm∠EFG.

Answers

EFGm is 41 degrees
Explaination: hope it’s correct because I found good sources for the answer :DD

What is the area of the triangle below (in square units)?
1 yd
1 yd

Answers

Step-by-step explanation:

The area of a triangle is calculated by multiplying height to the base and that divided by two

1 × 1 ÷ 2 = 1/2 yd^2 or 0.5 y^2

Students were asked how many hours they read in a week. Is this a good example of a statistical question? Why or why not?
Yes, this is a good statistical question because a variety of answers are given.
Yes, this is a good statistical question because there are not a variety of answers that could be given.
No, this is not a good statistical question because there are not a variety of answers that could be given.
No, this is not a good statistical question because there are a variety of answers that could be given.

Answers

Answer:

a. Yes, this is a good statistical question because a variety of answers are given.

Pls mark as brainliest!

Answer:

Step-by-step explanation:

Yes, this is a good statistical question because there are not a variety of answers that could be given.

Pls help me with this question

Answers

Answer:

242

Step-by-step explanation:

3*4/2*2 + 5*8*3 = 242

plz answer asap and i would be very grateful

Answers

the answer is C.

hope this helps

Pls help math trig I missed one day

Answers

21.....................

Can someone please check my answer??!!

Answers

The answer would be the last one “The graph shifts 7 units to the left and 8 units up”

Kay's Dessert Shop bakes cookies. The ratio of chocolate chip to sugar cookies baked is always 5 to 2. If she bakes 210 cookies in one day, how many were sugar cookies? 50 points

Answers

Answer: 60

Step-by-step explanation:

Given

The ratio of chocolate chip to sugar cookies is 5:2

If she bakes 210 cookies in one day

Suppose she baked x amount of chocolate chips on that day

So, we can write

[tex]\Rightarrow x=\dfrac{2}{5+2}\times 210\\\\\Rightarrow x=\dfrac{2}{7}\times 210=60[/tex]

There were 60 sugar cookies on that day

Write the equation of the line that passes through the points (4,7) and (8,6). Put
your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.

Answers

y=-1/4x+8

First find the slope

Slope= y-y1/x-x1

So (6-7)/(8-4) = -1/4

Now take that slope and use one of the points and plug them into the point slope formula to solve for your y intercept.

Point slope formula: y=mx+b

So 7=-1/4(4)+b OR 6=-1/4(8)+b

Either way you’ll get b=8!

Put em together and you get: y=-1/4x+8

Ps you can double check your answer by plugging in one or both of the points into your equation to see if it works :)



Answer:

y - 7 =  [tex]-\frac{1}{4}[/tex] (x - 4)

Step-by-step explanation:

Find Slope: m = [tex]\frac{y_{2-}y_{1} }{x_{2-}x_{1} }[/tex]

m = [tex]\frac{6-(7)}{8-(4)}[/tex]

m = [tex]\frac{-1}{4}[/tex]

Point Slope Form: y - [tex]y_{1}[/tex] = m ( x - [tex]x_{1}[/tex] )

y - 7 = [tex]-\frac{1}{4}[/tex] (x - 4)

Which kind of triangle exists if the side measures are 3, 9, and 10?


i thought the answer was acute but my teacher marked it wrong and told me the correct answer was obtuse could someone explain why it would be obtuse?

Answers

Step-by-step explanation:

    There is a rule that if c^2 > a^2 + b^2, then it is an obtuse triangle.

    *c is the longest side

     I attached more information on it below.

Isaiah is going to invest $94,000 and leave it in an account for 16 years. Assuming the interest is compounded daily, what interest rate, to the nearest tenth of a percent, would be required in order for Isaiah to end up with $273,000?

Answers

Answer:

Step-by-step explanation:

r=6.7


is 10 times as much as 6.

Answers

Answer:

60

Step-by-step explanation:

10*6= 60 if thats what you wanted lol

What is the acceleration of a plane that increases its speed from 800 kilometers per hour to 860 kilometers per hour in 5 seconds?

Answers

I came up with 43,200 km/h^2

Help me please !!!!!!!!!

Answers

Last one

Hope this helps.

Brainliest please

Solve for 4(3x - y) -2(4y - 5x) =

Answers

Answer:22x-12y

Step-by-step explanation:

Which statement about these triangles is true?

(Image)


A. The dilation is an enlargement

B. The dilation is a reduction

C. It is not a dilation

D. There is not enough information

Answers

the answer is D.

there is not enough information

Answer:

d

Step-by-step explanation:

I HAVE 5 MINUTES LEFT HELPPPP PLEASE IM BEGGING!!!!

Which representation shows y as a function of x???

Answers

Answer:

It is B and D

Step-by-step explanation:

They are both x and y functions

Use the coordinates of the labeled point to find the point-slope equation of
the line

Answers

Answer:

C.

Step-by-step explanation:

The y-intercept is (0,4) and the slope is -3

So check letter C   4 + 5 = -3(0-3) = 9, it is a true statement

Solve this inequality for x: - 3(x + 3) > 30

Answers

Answer:

x<-13

Step-by-step explanation:

−3(x+3)>30

Divide both sides by −3. Since −3 is negative, the inequality direction has changed.

x+3<30/-3

Divide 30 by −3 to get −10.

x+3<−10

Subtract 3 from both sides.

x<−10−3

Subtract 3 from −10 to get −13.

x<−13

Graph for inequality:

What point would be the reflection across the x-axis for the point, (7,2)?

Answers

Answer:-7,2

Step-by-step explanation: It will be because only the X side changes

Answer:

(7,-2)

Step-by-step explanation:

TRANSFORM THE GIVEN QUADRATIC FUNCTION INTO THE FORM y=a(x-h)²+k
1. y=x²+4x+5 ​

Answers

Answer:

(x²-2)+1

Step-by-step explanation:

(x²-2)-2²+5

(x²-2)+1

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