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
KengaRu [80]
3 years ago
12

Given f(x) = x ^ 2 - (3x + 8) Find f(1)

Mathematics
1 answer:
alexira [117]3 years ago
3 0

Answer:this problem requires one to plug in the value given to the equation given. to find f(-1) the x in one side of the equation is replaced by a -1 therefore the x in the other side of the equation must also be replaced by (-1) so the answer is -3(-1) -8 = f(-1) = -5. -5 is the correct answer.

You might be interested in
Find the table with unit rates greater than the unit range in the graph. Then arrange these tables in order from least to greate
Lubov Fominskaja [6]

Answer:

Except table 2, all tables have greater unit rate than the graph.

The required arrangements of tables is  

Table 2 < Table 1 < Table 3 < Table 5 < Table 4 < table 7 < Table 6

Step-by-step explanation:

Formula for unit rate :

m=\dfrac{y_2-y_1}{x_2-x_1}

From the given graph it is clear that the line passes through the points (0,0) and (11,20). So, unit rat of graph is

m=\dfrac{20-0}{11-0}=1.8181...

Similarly, we need to calculate the unit rate for each table.

m_1=\dfrac{26-13}{14-7}=\dfrac{13}{7}=1.85714

m_2=\dfrac{18-9}{10-5}=\dfrac{9}{5}=1.8

m_3=\dfrac{34-17}{18-9}=\dfrac{17}{9}=1.88..

m_4=\dfrac{42-21}{22-11}=\dfrac{21}{11}=1.9090..

m_5=\dfrac{38-19}{20-10}=\dfrac{19}{10}=1.9

m_6=\dfrac{50-25}{26-13}=\dfrac{25}{13}=1.923

m_7=\dfrac{46-23}{24-12}=\dfrac{23}{12}=1.9166..

Except table 2, all tables have greater unit rate than the graph.

The required arrangement of tables is  

Table 2 < Table 1 < Table 3 < Table 5 < Table 4 < Table 7 < Table 6

4 0
4 years ago
The area of a rectangle is 48. If the width is 8 less than its
Rufina [12.5K]

OK.... here we go....

The width is 8 less than the length, so that means: w = L - 8.

So, since the area of a rectangle is: A = L x W ...

Therefore, 48 = L(L - 8)...

48 = L^2 - 8L...

continuing from there .... you get width = 4 and length = 12

48 = 4 x 12   (and notice that the width is 8 less than the length)



7 0
4 years ago
An entrepreneur buys some microscopes. Each one cost $200 and resells online for $526. What is the mark-up percentage?
Dafna11 [192]

Answer:

326

Step-by-step explanation:

Given: Microscopes. Each one costs $200 and resells online for $526.

To find: What is the mark-up percentage?

Solution: Simply take the sales price minus the unit cost, and divide that number by the unit cost. Then, multiply by 100 to determine the markup percentage.

526 - 200 = 326

Net Profit Margin = 61.98%

Net Profit = $326.00

Profit Percentage = 163.00%

Find more here: brainly.com/question/23345732

6 0
3 years ago
Two co- interior angles are in the ratio 5:7 find the angles ​
VARVARA [1.3K]

Answer:

75°

105°

Step-by-step explanation:

Two co-interor= 180°

5+7= 12

ratio12= 180°

<em>{</em><em>f</em><em>i</em><em>n</em><em>d</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>o</em><em>t</em><em>h</em><em>e</em><em>r</em><em> </em><em>r</em><em>a</em><em>t</em><em>i</em><em>o</em><em>s</em><em>,</em><em> </em><em>5</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>7</em><em>)</em>

12=180°

5×180÷12 = 75°

To find 7, just subtract 180-75= 105°

3 0
3 years ago
A rectangle is 3m long and 2050 m wide find it perimeter​
stellarik [79]
3+3+2050+2050=4106

4106
7 0
3 years ago
Other questions:
  • What is the value of x/y when x=7/10 and y=3/8
    8·1 answer
  • Name three different ways you can represent a group of equivalent ratios
    5·2 answers
  • Solve for x 36x-6=16x+18x+2
    15·1 answer
  • the annual interest rate for jacks savings account increased from 2.8% to 4.1%. Describe the change as a relative change in term
    6·1 answer
  • What is the slope of the line with equation y=-5x
    8·1 answer
  • Evaluate the function g(t)=3/2t - 5/2 , when t=5
    8·1 answer
  • Find the length of the missing sides, round your answers to the nearest hundredth.
    11·1 answer
  • What is the opposite of 4?
    10·1 answer
  • The change in altitude of a bird after 2 __ 1 2 seconds was –41 __ 1 4 feet. What was the average change in altitude of the bird
    7·1 answer
  • A salesman recorded<br> $1200 in sales. His<br> commission is 12%. How<br> much is his commission?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!