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
DaniilM [7]
3 years ago
9

F(x)=3x²+4x-1evaluate f(-2)​

Mathematics
1 answer:
gtnhenbr [62]3 years ago
6 0

Answer:

3.

Step-by-step explanation:

f(-2) = 3(-2)^2 + 4(-2) - 1

= 12 - 8 - 1

= 3.

You might be interested in
In a cave, a stalactite gets 44 millimeters longer each year. this year it is 72 centimeters long. how many years until it is 1
iragen [17]

Answer:

6.36 years (the .36 repeats), so rounded is 6.4.

Step-by-step explanation:

First, I'm going to convert all measurements to meters.

Since 1000 mm = 1 m, divide 44 by 1000.

44/1000 = 0.044 m

Since 100 cm = 1 m, divide 72 by 100.

72/100 = 0.72 m

Next, I'm going to setup an equation using y = mx + b.

b is the beginning amount which is 0.72.

m in the equation represents the rate which is 0.044.

y represents the total which is 1.

Plugin the numbers and solve for x.

1 = 0.044x + 0.72

1 - 0.72 = 0.044x + 0.72 - 0.72

0.28 = 0.044x

0.28/0.044 = 0.044x/0.044

6.36 = x

7 0
1 year ago
PLEASE HELP ME I NEED THIS ANSWER FOR ALGEBRA!
Marizza181 [45]

Answer:

radius  = 6.2

Step-by-step explanation:

so you already have the formula, which is

\sqrt[3]{ \frac{3v}{4\pi} }

the v represents Volume.

and 3v would be 3×volume.

\sqrt[3]{ \frac{3 \times 1000}{4 \times \pi} }

\sqrt[3]{ \frac{3000}{12.56637061} }

\sqrt[3]{238.7324147 }

= 6.20350491

to the nearest tenth place.

= 6.2

4 0
2 years ago
The front row in a movie theater has 23 seats. If you were asked to sit in the seat that occupied the median position, in which
Scorpion4ik [409]

Answer:

You would have to sit in the 12th seat. (12)

Step-by-step explanation:

The median is the middle number in a sorted, ascending or descending, list of numbers.

3 0
2 years ago
What is the answer!!!!!!
weqwewe [10]

Answer:

The answer is c: the lendth of the photo frame is between 11 and 12 inches.

I hope this helps you!

8 0
3 years ago
Here is a list of numbers: 3.9 , 7 , 3.3 , 1 , 1.4 , 1.7 , 2.1 , 3.3 , 5.2 State the median. Give your answer as a decimal.
Ber [7]
<h3>A median.</h3>

The "middle" of a sorted list of numbers. To find the Median, place the numbers in value order and find the middle number.

When there are two middle numbers we average them.

We have:

3.9, 7, 3.3, 1, 1.4, 1.7, 2.1, 3.3, 5.2

Let's sort the numbers from the smallest to the largest

1, 1.4, 1.7, 2.1, <u>3.3</u>, 3.3, 3.9, 5.2, 7

<h2>The median is 3.3</h2>
8 0
1 year ago
Read 2 more answers
Other questions:
  • The SAT scores have an average of 1200 with a standard deviation of 60. A sample of 36 scores is selected. a) What is the probab
    6·1 answer
  • Jane, Jasmine, and Jocelyn have record collections. Jane has 3 times as many records as Jocelyn has. Jasmine has 2 more than twi
    5·1 answer
  • What’s the reciprocal of -8
    15·1 answer
  • Lynda cuts a piece of wood for a project. The first cut is shown and can be represented by the equation y=1/4x-5.The secend cut
    8·2 answers
  • Which sequence of transformations would maintain congruent ?
    10·1 answer
  • Please help me thanks please
    11·1 answer
  • What is the Circumference of this circle
    6·1 answer
  • Write the log equation as an exponential equation. You do not need to solve for x.
    14·1 answer
  • Find the value of 4th terms by using 3n-2​
    7·2 answers
  • Roberta makes $9 an hour plus a 12.5% commission selling jewelry. How much does she
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!