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
irga5000 [103]
3 years ago
12

Given two complementary angles, 3x and (x - 2). Find the value of x.

Mathematics
1 answer:
ohaa [14]3 years ago
6 0

Answer:

x = 23°

Step-by-step explanation:

Note: Complementary angles measure 90°

3x + (x - 2)° = 90°

=> 3x + x - 2° = 90°

=> 4x - 2° = 90°

Add the additive inverse of -2 to both sides of the equation

i.e 4x - 2° + 2° = 90° + 2°

=> 4x = 92°

Divide both sides of the equation by the coefficient of x which is 4

=> 4x/4 = 92°/4

x = 23°

You might be interested in
A line passes through (2, –1) and (8, 4). a. Write an equation for the line in point-slope form. b. Rewrite the equation in stan
pentagon [3]
The point-slope form of a line is:

y-y1=m(x-x1),  where m=slope and (x1,y1) is any point on the line

First we need to find the slope, which is (y2-y1)/(x2-x1)

m=(4--1)/(8-2)

m=5/6 and we can use either point, I'll use (8,4)

y-4=(5/6)(x-8)

That is your equation in point-slope form.

Now the standard equation of a line is ax+by=c

y-4=(5/6)(x-8)  we can perform the indicated multiplication on the right side

y-4=(5x-40)/6  multiply both sides by 6

6y-24=5x-40  add 24 to both sides

6y=5x-16  subtract 5x from both sides

-5x+6y=-16  and by convention, the standard equation of a line should be expressed with a positive coefficient for x, so multiply both sides by -1

5x-6y=16
8 0
3 years ago
This one is number 6
iren2701 [21]
I’m not entirely sure, but i do think it could be B.
5 0
2 years ago
Read 2 more answers
If f(x)=4x-6 and g(x) =2x find f(x) •g(x)
slavikrds [6]
This is same as (4x-6)(2x), so you can distribute 2x into 4x-6 and you would get
(2x)4x - (2x)6 = 8x² - 12x

Final answer: 8x² - 12x

Hope this helps.
5 0
3 years ago
Read 2 more answers
Evaluate the indefinite integral. (Use C for the constant of integration.) <br> ex 5 ex dx.
melisa1 [442]

Answer:

  5 e^{x} +C

where C is constant of integration

Step-by-step explanation:

<u><em>Explanation:-</em></u>

<em>Given f(x) = 5 eˣ</em>

Now integrating with respective to 'x' , we get

                                                      I =  \int\limits {5 e^{x} } \, d x

<em> By using integration formula</em>

                                       \int\limits { e^{x} } \, d x = e^{x} +C

                                     I =  \int\limits {5 e^{x} } \, d x  = 5 e^{x} +C

<em>where C is constant of integration</em>

8 0
3 years ago
Last year, Austin opened an investment account with $6800. At the end of the year, the amount in the account had increased by 6.
erica [24]

6800*0.065=442

6800+442=7242

5 0
3 years ago
Other questions:
  • What graph could represent the function f(x)= 1/x -1 ?
    14·1 answer
  • Draw a model write an equation and solve
    11·1 answer
  • Is 0.48 greater than 11/25
    6·1 answer
  • Vijay has a collection of 50 number cubes that are each 1 cubic inch. He finds a box that is 4 inches high.He fits 12 cubes into
    7·1 answer
  • Angeles weather is making her a sandwich to take to school for lunch she is a loud to have two things on her sandwich and she ca
    12·2 answers
  • What are the disadvantages of driverless cars? Check all that apply.​
    15·1 answer
  • Lee ran a mile in 7 1/3 minutes. His friend Sam ran the same mile in 8 5/9 minutes. How many minutes faster did Lee run? (First
    9·1 answer
  • Find the volume of this sphere.<br> Use 3 for T.<br> d=6in<br> V ~ [?]in3<br> V = Tr3
    14·1 answer
  • Can u plzz help meeee
    8·2 answers
  • A. C=22d<br> B. C= d + 22d<br> C. C= d + 22<br> D. D = 22c
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!