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
Karo-lina-s [1.5K]
3 years ago
15

If (x) = 3x^2+ 10, what is f(-7)?

Mathematics
1 answer:
inna [77]3 years ago
3 0

Answer:

157

Step-by-step explanation:

3(-7)² + 10

3(49) + 10

147+10

157

- Gage Millar, Algebra 2 Tutor

You might be interested in
Please help! The volume of an inflated spherical water balloon is 121,500 pi millimeters to the third. What is the radius of the
irga5000 [103]

Answer:

The radius of the inflated spherical balloon  is 45 millimeters.

Step-by-step explanation:

Volume of the spherical water balloon = 121,500 pi  cubic millimeters

Let the radius of the balloon = r

Now, Volume of a Sphere = \frac{4}{3} \pi r^{3}

⇒\frac{4}{3} \pi r^{3}  = 121,500 \pi

On solving for the value of r, we get:

r^{3}  = \frac{121,500\times 3}{4}   = 91125\\ \implies  r  = \sqrt[3]{91125}

or, r  = 45 millimeter

Hence, the radius of the inflated spherical balloon  is 45 millimeters.

5 0
3 years ago
A customer paid $83.97 to rent a truck for 1 day. The rental company charged $34.99 per day and $0.79 per mile driven. Which equ
Nezavi [6.7K]

\frac{83.97 - 34.99}{0.79}  = m
5 0
3 years ago
If alpha and bita are the zeroes of the polynomial f(x)=x^-5x+k such that alpha - bita =1, then find the value of k
vovangra [49]

Answer:

pp

Step-by-step explanation:

5 0
3 years ago
A goat is tethered to a stake in the ground with a 5-m rope. The goat can graze to the full length of the rope a full 360 degree
Nina [5.8K]
The length of the rope in this case becomes the radius of the circle that the goat is able to graze. The area of the circle is calculated through the equation,
                            A = πr²
Substituting,
                              A = π(5m)² = 78.54 m²
Thus, the area that the goat is able to graze is equal to 78.54 m². 
5 0
3 years ago
What is the best first step for solving the given system using substitution while avoiding fractions? =9x+4x=10 -9x+3y=3
aivan3 [116]

Answer:

  Solve for y in the second equation

Step-by-step explanation:

We assume your system is ...

  • -9x +4y = 10
  • -9x +3y = 3

Dividing <em>the </em><em>second equation</em> by 3 gives ...

  -3x +y = 1

so an expression for y without fractions can be found by <em>solving for y</em>, that is, by adding 3x:

  y = 3x +1

_____

<em>Comment on alternate solution</em>

We'd be tempted to solve the first equation for -9x and substitute for that.

  -9x = 10 -4y

  (10 -4y) +3y = 3 . . . . . substitute for -9x

  -y = -7 . . . . . . . . . . . . . simplify, subtract 10

  y = 7 . . . . . . . . . . . . . . multiply by -1

3 0
3 years ago
Read 2 more answers
Other questions:
  • Explain how you would write 7/8 as a rate per 100.
    15·2 answers
  • 14 5 18 24 15 28 34 _ what number is needed to complete the pattern
    5·1 answer
  • How do i estimate 48.03 + 7.55 by rounding to the nearest whole number?
    9·2 answers
  • In airline​ applications, failure of a component can result in catastrophe. As a​ result, many airline components utilize someth
    6·1 answer
  • Said salió a comer alitas con sus amigos. Pidieron 2 promociones de 25 alitas por $189, pero acordaron que cada uno pagaría la c
    14·1 answer
  • For a set of data, r = 0.27. Which is true about the correlation of the variables? The variables have no correlation. The variab
    8·2 answers
  • 34 ft/min = ft/h please show example I want to know how to do it
    15·2 answers
  • A flag has a total area of 42 square feet.
    9·2 answers
  • A sports tournament has d teams. Each team has 16 players . Using, write an expression for total number of players in the tourna
    12·1 answer
  • A class of 40 students visits a farm they tour the farm in group of 5 how many groups of 5 can they make?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!