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
Phoenix [80]
2 years ago
5

F(x) = 3x^2+1 1. f(-2) =

Mathematics
1 answer:
Rainbow [258]2 years ago
3 0

Answer:

14

Step-by-step explanation:

f(-2) = 3(-2)² + 1 = 3(4) + 1 = 12 + 1 = 13

You might be interested in
Multiplying positive and negative fractions 2/5 times 2/3
Svet_ta [14]

Answer:

\frac{4}{15}

Step-by-step explanation:

I used an online Fraction calculator to check my answer and I got 4/15 both times so you can trust this answer my friend.

Hope this helped you out.

5 0
2 years ago
What is the slope of the line that passes through the points (2, 3) and (8, 6)
nadezda [96]

Answer:

The slope of the line that passes through the points (2, 3) and (8, 6) is \frac{1}{2}.

Step-by-step explanation:

To find the slope of two points, divide the difference between the y values by the difference between x values, you can remember this by the mnenomic "rise over run". In this case, the difference between y and x values would be 6 - 3 = 3 and 8 - 2 = 6 respectively. This means the slope between the two points (2, 3) and (8, 6) is \frac{3}{6} or \frac{1}{2}.

3 0
2 years ago
An entertainment firm offers several DJ choices and light shows that range in price based on the rental time period. The DJ's co
alexdok [17]
219+159≤x≤369+309
The answer can then be simplified to 
378≤x≤678
8 0
2 years ago
What is the length of EF in the triangle? Show your work. HELP!
Zinaida [17]

The length of EF in the given triangle is 8.80 m.

Step-by-step explanation:

Step 1:

In the given triangle, the opposite side's length is 16.2 m, the adjacent side's length is x m while the triangle's hypotenuse measures 16.2 m units.

The angle given is 90°, this makes the triangle a right-angled triangle.

So first we calculate the angle of E and use that to find x.

Step 2:

As we have the values of the length of the opposite side and the hypotenuse, we can calculate the sine of the angle to determine the value of the angle of E.

sinE = \frac{oppositeside}{hypotenuse}  =\frac{13.6}{16.2} = 0.8395.

E = sin^{-1} (0.8395), E = 57.087.

So the angle E of the triangle DEF is 57.087°.

Step 3:

As we have the values of the angle and the hypotenuse, we can calculate the cos of the angle to determine x.

cos E = \frac{adjacentside}{hypotenuse} = \frac{x}{16.2} .

cos(57.087) = 0.5433, x = 16.2 (0.5433) = 8.8014.

Rounding this off to the nearest hundredth, we get x = 8.80 m.

8 0
3 years ago
Hi Mariceo, when you submit this form, the owner will be able to see your name and email address.
Andreyy89
So you can see my email address? Haha sure...
6 0
3 years ago
Other questions:
  • PLEASE HELP! Urgent!!!
    15·1 answer
  • Write the point-slope form of the equation of the line with a slope of - 2 and an x-intercept of - 1. Include your work in your
    9·2 answers
  • Can you help me Solve this and show the stepd
    6·1 answer
  • Matt can buy an 8-ounce jar of salsa for 2.79 or a 15 ounce jar of salsa for 5.54. which jar has the best unit rate
    12·1 answer
  • Know the question plz help me
    14·1 answer
  • What is the answer? Plz help
    14·1 answer
  • X(x^2-6x+5)=12(x-5)<br> Please! Step by step.
    13·1 answer
  • 2x2.5x2/3 —-PLEASE HELP MEEEEEEE
    13·1 answer
  • Write an equivalent expression for 6(3g + 2) - 2g. Simplify the expression.
    15·1 answer
  • 2.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!