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
dem82 [27]
2 years ago
13

Need help for this equation

Mathematics
2 answers:
Afina-wow [57]2 years ago
8 0

Answer:

if you solve the equation it is 8 but the equation is 5-(-3) or 5+3 because two negatives equal a plus

VikaD [51]2 years ago
7 0

Answer:

8

Step-by-step explanation:

The -3 is just substituting for the x. So if x=-3 you plug in -3 for x in the formula.

So when you plug it in you will have 5- -3. The two negative signs will make a positive. So you will have 5+3 and 5+3=8.

So f(-3)=8

You might be interested in
What is the equation of a line that contains the points (2,-2) and (0, -2)? y = 0
kvasek [131]
Y=-2 should be the answer
8 0
4 years ago
Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
julsineya [31]

Answer:

see below

Step-by-step explanation:

Dosage= 500 mg

Frequency= twice a day (every 12 hours)

Duration= 10 days

Number of dosage= 10*2= 20

residual drug amount after each dosage= 4.5%

We can build an equation to calculate residual drug amount:

d= 500*(4.5/100)*t= 22.5t, where d- is residual drug, t is number of dosage

After first dose residual drug amount is:

  • d= 500*0.045= 22.5 mg

After second dose:

  • d= 22.5*2= 45 mg

As per the equation, the higher the t, the greater the residual drug amount in the body.

Maximum residual drug will be in the body:

  • d= 20*22.5= 450 mg at the end of 10 days

Maximum drug will be in the body right after the last dose, when the amount will be:

  • 500+19*22.5= 927.5 mg
5 0
3 years ago
PLEASE HELP!! Write the equation of the graph.
Jet001 [13]
When you first look at thius graph, you should notice two things immedietly.

1. This graph will have a positive slope, because the line is going up.

2. the y-intercept is -2 because that's where it is on the y-axis.

Now, you have been given two points, (2, 1) and (0, -2). You can put these two points into the slope formula, which is: m = \frac{y2 - y1}{x2 - x1} \frac{(-2) - 1}{0 - 2} = \frac{3}{2} = 3/2.

So, now you have your slope and your y-intercept. Now, just put them into    y = mx + b form!

y = 3/2x - 2 (it is ubtracting two instead of adding two because it is a negative two.)

Hope this helps!!
~Kiwi
8 0
3 years ago
Which Expression Is Equivalent to 486-9+6+3^3•2
ValentinkaMS [17]
486 - 9 + 6 + 3³ · 2 = 477 + 6 + 27 · 2 = 483 + 54 = 537
8 0
3 years ago
Read 2 more answers
A paintball court charges an initial entrance fee plus a fixed price per ball. The variable ppp models the total price (in dolla
DaniilM [7]

Answer:

$5.50

Step-by-step explanation:

The function we are given is

p = 0.80n + 5.50,

where n is the number of balls.

Multiplying this variable by 0.80 means $0.80 will be the cost per ball.  The additional amount added to the variable in the function, 5.50, will be the entrance fee.

7 0
3 years ago
Read 3 more answers
Other questions:
  • What is the value of x
    9·2 answers
  • X y
    8·1 answer
  • 34,515 is divisible by<br> a. 3<br> b. 9<br> c. 5<br> Explain your reasoning for your choice(s).
    9·1 answer
  • What is 5% of 210?<br> X 210
    12·1 answer
  • If you have 3 friends that wants to make slime. Do you think that you should do slime without them. Explain
    15·2 answers
  • Which of the binomial below is a factor of this expression
    10·1 answer
  • A granite block in the shape of a right rectangular
    7·2 answers
  • What is the value of b in the equation below? 9^-8 x 9^-2 = a^b
    8·1 answer
  • 3. Which equation represents the horizontal line that passes through the point (2, 3)?
    5·2 answers
  • Can someone explain slope intercept form as simple as possible? Formula: y=mx+b
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!