Mathematics High School

Find f(g(3)) given:
*
f (x) = 2x2 – 1
g(x) = 3x
h(x) =
j(x) = x - 5

Answers

Answer 1

Answer:

161

Step-by-step explanation:

Given the functions

f (x) = 2x^2 – 1

g(x) = 3x

we are to find f(g(3))

First look for the composite function f(g(x))

f(g(x)) = f(3x)

f(3x)  = 2(3x)² - 1

f(3x)  = 2*9x² - 1

f(3x)  = 18x² - 1

f(g(x)) =  18x² - 1

Substitute x  = 3 into the result

f(g(3)) = 18(3)² - 1

f(g(3)) = 18*9- 1

f(g(3)) = 162-1

f(g(3)) = 161

Hence f(g(3)) is 161

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Estimate the square root of the number below to the nearest tenth

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8.4 hope that helps
It’s 777777777777777222222222.000002020202020202202020202020

YeS mOrE 9Th GrAdE mAtH (question for smart people)

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Answer:

A. 4x+13

Step-by-step explanation:

distribute the 4

(4x+20) -7

4x+13

Answer:

A

Step-by-step explanation:

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Answer:

51

Step-by-step explanation:

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Answer:

x=67

Step-by-step explanation:

subtract 90 because those are right angles from 23 and you get 67

Points A, S, and R are ___.

Answers

Answer:

B

Step-by-step explanation:

I'm pretty sure it's B, (please let me know if I'm wrong.)  

Colinear means to be on the same straight line, which they are.  

Coplanar means to be in the same plane, which they appear to be as well.

So yeah I'm pretty sure it's B.  

Work out the area of a square with base = 1cm

Answers

Answer:

the area of the square is 1cm^2

Step-by-step explanation:

The computation of the area of the square is given below:

As we know that

Area of the square = side^2

Also in the square four sides are equal

So

= 1cm^2

= 1cm^2

hence, the area of the square is 1cm^2

Elliot is riding in a 100-mile bike race to raise money for a charity. So far he has completed 7_10of the race. How far has Elliot biked?

Answers

Answer: He rode 70 miles!!!

Answer:

70 miles

Step-by-step explanation:

Mark me as brainliest

If you order 3 pizzas, you will get 30 slices of pizza. How many slices are there in one pizza?

Answers

Answer:

There are 10 slices in one pizza.

Step-by-step explanation:

30 ÷ 3 = 10

Answer:

10 slices

Step-by-step explanation:

30÷3=10 meaning every pizza will have 10 slices and 2 pizzas will have 20.

what is 3 3/5 + 6 3/10

Answers

Answer:

18/5 or 3 3/5

Step-by-step explanation:

Help please and show work

Answers

So the radius is 7 inch which is given
Use the formula for the circumference which is 2xpiXradius
2x3.1415x7=44 to nearest integer

Solve the equation for x. If necessary round to the nearest tenth.
x² = 17
X=
+

Answers

Answer:

x = 4.1 & x = −4.1

Step-by-step explanation:

[tex]x^2 = 17\\[/tex]

x  =  ±√17

x  =  √17,  −√17

x = 4.1 & x = −4.1


The diagram below models the diameter of the bicycle wheel
21.75
Which of the following is closest to the distance of the length when the bicycle wheel
makes 1 revolution?
A7 inches
B 25 inches
C34 inches
D69 inches


Can anyone help me!!

Answers

Answer: (21.75 / 2) * 2 * pi = 68.42...in, answer D.

Explanation: one revolution from a wheel will be a 360 degree rotation, meaning that if you had laid your finger on the outside of the wheel as it made its full rotation, your finger would have touched the entire circumference of the wheel. Thus, we can represent the length of 1 revolution as the circumference. Thus we take the diameter, and divide it by 2 to get the radius. Then we simply multiply by 2 * pi * r (r = radius). This is the formula for the circumference of a circle.

You are tired at the end of the term and decide to borrow $500 to go on a trip to Whatever Land. You go to the bank and borrow the money at an annual rate of 11% for 6 months. Find the interest you will pay on the loan.

Answers

Answer:

$27.5

Step-by-step explanation:

P =$500, R = 11 pcpa, T = 6 months = 1/2 years

[tex]I = \frac{PRT}{100} = \frac{500 \times 11 \times \frac{1}{2} }{100} \\ \\ = 5 \times 11 \times \frac{1}{2} \\ \\ = 55 \times \frac{1}{2} \\ \\ I= \$ 27.5[/tex]

need help please will give brainliest

Answers

Answer:

y=1/5x+7

Step-by-step explanation:

Megan is planning a surprise dinner for her best friend. She has a set budget of $260. The venue charges
a flat fee of $25 for the reservation and they are going to charge her $15 a person. How many people can
Megan invite at most?

Answers

Answer:

15 people at most

Step-by-step explanation:

25+15+15+15+15+15+15+15

+15+15+15+15+15+15+15+15=250

Which of the following is an equation with ONE solution?

A
2x = 2x + 18

B
2x - 10 = 2(x - 5)

C
5(x + 3) + x

D
2x + 5= 11 - 4x

Answers

D is the answer. I hope this helps!

53.53x 10 power of 2

Answers

The answer to your question is 5,353
it is 5353x hopefully this helped

please help with this question please and will mark you brainliest so please help​

Answers

Answer:

1 and 1/24

Step-by-step explanation:

i did the math and this is what i got

if im wrong im sorry

Will give random brainliest if 10 users comment or answer and put #brainliest

Answers

Answer:

#brainliest

Step-by-step explanation:

tghfue7hbjdj I o

Answer:

HEY

#brainliest

Step-by-step explanation:

HELP PLS

Juanita has rectangular 3 cards that are 5 inches by 9 inches. How can she arrange the​ cards, without​ overlapping, to make one larger polygon with the smallest possible​ perimeter? How will the area of the polygon compare to the combined area of the ​3 cards?

Answers

Answer:

Connect the sides of the cards that are 7 in  long.

Step-by-step explanation:

Im working on this rn XD

Have a Nice day :)

classify point C

A. centroid
B. circumcenter
C. orthocenter
D. incenter


PLS HELP PLS

Answers

I think it is a I believe but I could be wrong so correct me if I’m wrong

HELP!!!!! Algebra II Help needed
Find a formula for the nth term of the arithmetic sequence.
First Term -2
Common Difference 8

Gotten this far:
an=8n+?

Thank you!!!

Answers

Answer:

[tex]a_{n} = 8n - 10[/tex]

Step-by-step explanation:

[tex]a_{n} = a_{1} + (n - 1)d[/tex]  is the formula you want to use

[tex]a_{n} = -2 + (n - 1)8[/tex]

    = -2 + 8n - 8

   = 8n - 10

Perform the following conversion.
123 cm to m

Answers

Answer:

1.23 meters

Step-by-step explanation:

divide it by 100..

123/ 100 = 1.23 m

Answer:

1.23 m

Step-by-step explanation:

divide the length value by 100

When using substitution to solve this system of equations
6y + 2x = 3
2x + y = 8
which variable will you solve for?

Answers

Hello, find the work out in the attached image
X = 4.5
Y = -1

1 15/8+ 1 10/8=
help me

Answers

789/23/6 that is the answer trust me

Answer:

5 1/8

Step-by-step explanation:

  1 [tex]\frac{15}{8}[/tex]

+ 1 [tex]\frac{10}{8}[/tex]

  2 [tex]\frac{25}{8}[/tex] = 2 + 3 [tex]\frac{1}{8}[/tex] = 5 1/8

mrs. kelly asked her students to plot the number of books they read over summer. Using the dot plot, how many students answered the question?

Answers

Answer:

18

Step-by-step explanation:

Add all the dots. 2+1+3+2+6+3+1=18

help will make brainliest ​

Answers

Answer: The answer is B

A scuba diver dove 40 feet below the surface. He swam up 12 feet to see a unique fish. He followed the fish down 8 feet. Then he followed the fish up 27 feet. How far below the surface is the diver now?

Answers

Answer: 9 feet below the surface.

Step-by-step explanation:

The scuba diver starts 40 ft below the surface. We can represent the position of the scuba diver as:

Position = -40ft

Where the negative sign is because it is below the surface of the water, so

"He swam up 12 feet to see a unique fish."

Now we need to add 12ft

Then his new position is:

Position = -40ft + 12 ft = -28ft

"He followed the fish down 8 feet.

Now we need to subtract 8ft

His new position is:

Position = -28ft - 8 ft = -36 ft

"Then he followed the fish up 27 feet."

Now we add another 27 ft.

The final position will be:

Position = -36ft + 27ft = -9ft

Then the final position of the scuba diver is -9ft, that means that he is 9 feet below the surface.

Terry rides his bike to work. It
takes him 40 minutes to go 7
miles. What is Terry's rate per
hour?(** how many minutes in
an hour**)

Answers

Answer:

10.5 is the answer

Step-by-step explanation

[tex]\frac{40}{7}[/tex]=[tex]\frac{60}{?}[/tex]

40x1.5=60

7x1.5=10.5

Answer:

10.5

Step-by-step explanation:

A restaurant needs to build a wheelchair ramp for its customers. The angle 2 of elevation for a ramp is recommended to be 5 degrees. If the vertical distance from the sidewalk to the front door is two feet, what is the horizontal distance that the ramp will take up? Round your answers to the nearest hundredth. * O a) 22.9 ft O b) 26.4 ft O c) 22.8 ft O d) 22.2 ft​

Answers

Answer:

Step-by-step explanation:

An escalator at a shopping center is 200.75 feet long and rises at an angle of 15⁰. What is the vertical rise of the escalator? Round to hundredths place

The horizontal distance that the ramp will take up is a) 22.9 ft.

What are trigonometric ratios in terms of a right-angle triangle?

We know a right-angled triangle has three sides they are -: Hypotenuse,

Opposite and Adjacent.

We can remember SOH CAH TOA which is,

sin = opposite/hypotenuse, cos = adjecen/hypotenuse and

tan = opposite/adjacent.

Given, The vertical or opposite distance is 2 feet and it has an angle of 5°.

∴ The horizontal or adjacent distance can be obtained by tan(theta).

Assuming horizontal distance to be x feet.

∴ tan(5°) = 2/x feet.

x = 2/tan(5°).

x = 22.9 feet.

learn more about trig ratios here :

https://brainly.com/question/14977354

#SPJ2

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