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
Art [367]
3 years ago
7

Please answer step by step: -4=2x+16 What does x equal? x=____?

Mathematics
1 answer:
Fed [463]3 years ago
5 0

Answer:

Step-by-step explanation:

-4=2x+16

-16. -16

-20=2x

20/2=2x/2

10=x

You might be interested in
K = {(-3, -3), (-4, -4), (-5, -5), (-6, -6)} Is K a function and why? No, there is a limited number of ordered pairs in this lis
marysya [2.9K]

Answer:

Yes, no two ordered pairs in this list has the same second element.

Step-by-step explanation:

The function is a relation that associates to different elements x_1 and x_2 different elements y_1 and y_2.

Given K = {(-3, -3), (-4, -4), (-5, -5), (-6, -6)}

So,

  • x_1=-3\rightarrow y_1=-3;
  • x_2=-4\rightarrow y_2=-4;
  • x_3=-5\rightarrow y_3=-5;
  • x_4=-6\rightarrow y_4=-6.

Since different x have different image points y, this relation is the function. The correct answer is "Yes, no two ordered pairs in this list has the same second element."

5 0
3 years ago
I dont understand how to do this ​
Julli [10]

Answer:

A

Step-by-step explanation:

since it is <= we know that it is including the possibility of being equal so it is not a dotted line leaving only A and B as options. since its is <= it must be on the as the x increases the y must decrease. so the answer is A.

8 0
2 years ago
Find the values of m and b that make the following function differentiable.
KengaRu [80]

f(x)=\begin{cases}x^2&\text{for }x\le2\\mx+b&\text{for }x>2\end{cases}

In order to be differentiable everywhere, f must first be continuous everywhere, which means the limits from either side as x\to2 must be the same and equal to f(2). By definition, f(2)=2^2=4, and

\displaystyle\lim_{x\to2^-}f(x)=\lim_{x\to2}x^2=4

\displaystyle\lim_{x\to2^+}f(x)=\lim_{x\to2}(mx+b)=2m+b

so we need to have 4m+b=4.

For f to be differentiable at x=2, the derivative needs to be continuous at x=2, i.e.

\displaystyle\lim_{x\to2^-}f'(x)=\lim_{x\to2^+}f'(x)

We then need to have

\displaystyle\lim_{x\to2}2x=\lim_{x\to2}m\implies\boxed{m=4}

Then

2m+b=4\implies\boxed{b=-4}

7 0
3 years ago
Where is point b on the number line?​
Yuliya22 [10]

Answer:

i dont know but can you pick me brainiest

Step-by-step explanation:

4 0
3 years ago
Please help me! ASAP!!!!!
Greeley [361]

Answer:

x=36

Step-by-step explanation:

17+3 =20

now we have :

x+4

___         = 20

  2

20*2= 40

x+4=40

x=36

hopes this helps

4 0
2 years ago
Other questions:
  • The width, w, of a rectangular playground is x+3. The area of the playground is x^3-7x+6. What is an expression for the length o
    6·1 answer
  • If the lease factor is given 0.00045, what interest rate is that equivalent to
    7·1 answer
  • Jasmine wants to use her savings of $1128 to buy video games and music CDs. The total price of the music CDs she bought was $72.
    9·1 answer
  • If a couple were planning to have three​ children, the sample space summarizing the gender outcomes would​ be: bbb,​ bbg, bgb,​
    12·1 answer
  • Mr. Jones spends $156 to attend a college football game. Twenty percent of his cost was for a pass for parking. He spend the rem
    14·1 answer
  • Solve for x.<br> X<br> 73<br> Blank 1:
    12·1 answer
  • HELPPP :((( !!!<br><br>find the mean and median for the following.​
    15·2 answers
  • Evaluate 6+4/a+b/3 when a=4 and b=3
    7·1 answer
  • You and your 8 friends decide to draw straws for a prize. There are 8 long straws and 1 short straw. Describe how the theoretica
    14·1 answer
  • Which table represents a function? A 2-column table with 4 rows. The first column is labeled x with entries negative 3, 0, negat
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!