1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Karolina [17]
3 years ago
5

I’m so confused on how to do this

Mathematics
1 answer:
dimaraw [331]3 years ago
3 0

Answer:

19

Step-by-step explanation:

First:  Recognize that (f o g)(x) is the "composition" of two functions, where g(x) serves as the input to f(x).  We are given f(x) = 2x+3 and g(x) = x+5.  You could find g(3) right now:  it is g(3) = 3+5 = 8.  Use this 8 as the input to f(x):  f(8) = 2(8)+3 = 19.

You might be interested in
Write an equation in point-slope form of the line that passes through (-4,1) and (4,3).
Step2247 [10]

Answer:

An equation in point-slope form of the line that passes through (-4,1) and (4,3) will be:

y-1=\frac{1}{4}\left(x+4\right)

Step-by-step explanation:

Given the points

  • (-4,1)
  • (4,3)

Finding the slope between the points (-4,1) and (4,3)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(-4,\:1\right),\:\left(x_2,\:y_2\right)=\left(4,\:3\right)

m=\frac{3-1}{4-\left(-4\right)}

Refine

m=\frac{1}{4}

Point slope form:

y-y_1=m\left(x-x_1\right)

where

  • m is the slope of the line
  • (x₁, y₁) is the point

in our case,

  • m = 1/4
  • (x₁, y₁) = (-4,1)

substituting the values m = 1/4 and the point (-4,1) in the point slope form of line equation.

y-y_1=m\left(x-x_1\right)

y-1=\frac{1}{4}\left(x-\left(-4\right)\right)

y-1=\frac{1}{4}\left(x+4\right)

Thus, an equation in point-slope form of the line that passes through (-4,1) and (4,3) will be:

y-1=\frac{1}{4}\left(x+4\right)

5 0
3 years ago
The diameter of a circle endpoints are A(-1, 5) and B(4,-3). Use the midpoint formula to find the coordinates of the center of c
mina [271]

Answer:

centre = (\frac{3}{2}, 1 )

Step-by-step explanation:

using the midpoint formula

midpoint = [\frac{1}{2}(- 1 + 4), \frac{1}{2}(5 - 3) ] = (\frac{3}{2}, 1 )


6 0
3 years ago
if the sum of a number and nine is doubled, the result is seven less than the number. find the number.
avanturin [10]
X=the number we have to find.
This expression "2(x+9)" is when the sum of a number and nine is doubled.
If the result is seven less than the number, we will have: x-7

We can suggest the following equation:
2(x+9)=(x-7)
2x+18=x-7
2x-x=-7-18
x=-25

answer: the number would be:  -25.
3 0
3 years ago
Please Evaluate 1/6 + 2/3
weeeeeb [17]

Answer:

Step-by-step explanation:

4/6

5 0
3 years ago
Read 2 more answers
Please help me with how to solve this equation by completing the square. The answer should be (2, -6)
OLga [1]

Answer:

(2, -6)

Step-by-step explanation:

5n^2+20n-60

(5n+30)(n-2)

5n + 30 = 0

5n = -30

(5n = -30)/5

n = - 6

n - 2 = 0

n = 2

answer: (2, -6)

5 0
3 years ago
Other questions:
  • Whats the Independent and Dependent variable of this equation? y = 2x + 5
    15·1 answer
  • Question 13
    12·2 answers
  • Evaluate d – 7.5 when d = –3.82.
    14·2 answers
  • One number is five times another number. Their sum is 42. What are the two numbers? Answer ASAP
    11·1 answer
  • You are given the following equation. 16x2 + 25y2 = 400 (a) Find dy / dx by implicit differentiation. dy / dx = Correct: Your an
    11·1 answer
  • Find the percent: 80% of 8
    6·2 answers
  • Find the values of a and b that make the second expression equivalent to the first expression. Assume that x > 0 and y ≥ 0.
    6·2 answers
  • Which of the binomials below is a factor of this trinomial ? 8x^2+ 2x-3
    13·1 answer
  • Which statement is true?'
    11·1 answer
  • Will the following side lengths make a triangle? 7, 5, 4
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!