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
umka2103 [35]
3 years ago
11

Solve |2x+8|=30 and the math that goes along with it

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
7 0
2x + 8=30
      -8   -8
2x=22
2 divided by its self to get x by its self and you do that to the other side of the equals sign so 2 divided by 2 and 22 divided by 2
x=11
noname [10]3 years ago
3 0
I hope this helps you

You might be interested in
6th grade math help me pleaseeee
DIA [1.3K]

Answer:

T I hope this helps:D

6 0
3 years ago
It is roughly 8100 miles to fly from California to Australia. If it takes the plane 15 hours to reach its destination, how fast
Bad White [126]

Answer:

Answer is 540 mph (miles per hour)

Step-by-step explanation:

by diving 8100 by 15, you get a quotient of 540

5 0
3 years ago
Find f(-5) and f(12) for each piecewise function f(x){-4x+3 if x<3
Law Incorporation [45]
<h3>Answers:</h3>
  • f(-5) = 23
  • f(12) = 433

==================================================

Explanation:

The given piecewise function is

f(x) = \begin{cases}-4x+3 \ \text{ if } \ x < 3\\-x^3 \ \text{ if } \ 3 \le x \le 8\\3x^2+1 \ \text{ if } \ x > 8\end{cases}

At first piecewise functions may be strange confusing things, but they aren't so bad. I like to think of it like this: f(x) is a function that changes its identity based on what the input x is. We have three situations

  • f(x) = -4x+3 when x < 3
  • f(x) = -x^3 when 3 \le x \le 8
  • f(x) = 3x^2+1 when x > 8

In a sense, we have three different functions but they are combined somehow.

If x is smaller than 3, then we go for the first definition. Or if x is between 3 and 8, then we go for the second definition. Or if x is larger than 8, then we go for the third definition.

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

f(-5) means f(x) when x = -5. We see that -5 is smaller than 3, so x = -5 makes x < 3 true. We'll use the first definition

f(x) = -4x+3

f(-5) = -4(-5)+3

f(-5) = 20+3

f(-5) = 23

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

Now the input is x = 12. This is larger than 8. In other words, x = 12 makes x > 8 true. We'll use the third definition

f(x) = 3x^2+1

f(12) = 3(12)^2+1

f(12) = 3(144)+1

f(12) = 432+1

f(12) = 433

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

Side notes:

  • We won't use the second definition since we don't have any x inputs between 3 and 8
  • To say "less than or equal to" on a keyboard, you can write "<=" without quotes. For example, x \le 5 is the same as x<=5
3 0
3 years ago
Help please!!!<br> what goes in the y for the output?
Mazyrski [523]

Answer:

5, 2, 1, 2, 5

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
HELP! What is the value of X in the following parallelogram? WILL GIVE BRAINLIEST!
zavuch27 [327]

Answer:

x = 2

Step-by-step explanation:

<u>Step 1:  Set 3x - 2 equal to 5x - 6 to get x</u>

3x - 2 = 5x - 6

<u>Step 2:  Solve for x</u>

3x - 2 + 6 - 3x = 5x - 6 + 6 - 3x

4 / 2 = 2x / 2

2 = x

Answer:  x = 2

8 0
3 years ago
Read 2 more answers
Other questions:
  • Use your calculator to find sin 52º.<br> Use your calculator to find cos 47°.
    5·1 answer
  • Partial products of 328 times69
    10·2 answers
  • The​ half-life of​ carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 66​% of the​ carbon-1
    6·1 answer
  • Check my 4 math questions?
    5·2 answers
  • Why is this function nonlinear?​
    14·1 answer
  • Solve the inequality for x where x-c/d&gt;y (For d&gt;0)
    9·1 answer
  • Plssss helppppppppppppp
    9·1 answer
  • Simplify the expression ​
    11·1 answer
  • What number should be added to both sides of the equation to complete the square?
    15·1 answer
  • Which system of equations does the graph represent?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!