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
bagirrra123 [75]
3 years ago
15

Please help!

Mathematics
1 answer:
katovenus [111]3 years ago
6 0

Answer: f(3.5) = 58.20

Step-by-step explanation:

Wow...what degree of exponent are we to assume?

I'll go with 2 as we are only given two exemplars.

f(x) = x² + Ax + B

f(- 2.5) = 9 = (-2.5)² + (-2.5)A + B

f(2.5) = 45 = (2.5)² + (2.5)A + B

we can subtract the first equation from the second

45 - 9 = 2.5² - (-2.5)² + 2.5A - (-2.5A) + B - B

36 = 5A

A = 7.2

45 = (2.5)² + (2.5)7.2 + B

B = 20.75

F(3.5) = 3.5² + 7.2(3.5) + 20.75 = 58.2

You might be interested in
Here are the monthly charges for Jo's mobile phone
yaroslaw [1]

Answer:

The correct answer is - 625.36.

Step-by-step explanation:

Given:

Fixed mothly plan - 616

free minutes - 150

Used minutes - 170

Free text - 150

Used text - 182

Charging amount over free limit - 18p

Solution:

Number of minutes over the limit -  170 - 150 = 20

Number of text over the limit - 182 - 150 = 32

So the extra amount that will be add to the monthly charge would be -

(20*0.18) +(32*0.18)

and the total charge of the month would be -

= 616+(20*0.18) +(32*0.18)

= 616+3.60+5.76

= 625.36

Thus, the correct answer would be - 625.36

5 0
3 years ago
PLZ HELP...Enter in standard form the equation of the line passing through the given point and having the given slope.
Alenkinab [10]

Standard form for the equation of the line is

$y=-\frac{2}{3} x-\frac{25}{3}

Solution:

Given point is (2, –5).

slope of the line m = -\frac{2}{3}

Here, x_1=2, y_1=-5

Equation of a line passing through the point:

y-y_1=m(x-x_1)

$y-(-5)=-\frac{2}{3} (x-(-5))

$y+5=-\frac{2}{3} (x+5)

$y+5=-\frac{2}{3} x-\frac{10}{3}

Subtract 15 from both sides of the equation.

$y+5-5=-\frac{2}{3} x-\frac{10}{3}-5

$y=-\frac{2}{3} x-\frac{25}{3}

Standard form for the equation of the line is

$y=-\frac{2}{3} x-\frac{25}{3}

7 0
3 years ago
ANSWER PLEASE ILL MARK BRAINLIEST
kicyunya [14]

Answer:

The answer is D 1, your welcome

5 0
3 years ago
Read 2 more answers
4 A numerical expression is shown below. Evaluate the expression.​<br><br>help please explain too
Andrews [41]

Answer:

H

Step-by-step explanation:

8 0
3 years ago
What is the answer for 7-2(8/2)+9
photoshop1234 [79]
7-2( \frac{8}{2} )+9 =

Remove parentheses:

7-2* \frac{8}{2} +9 =

7 - 2 * 4 + 9 =

7 - 8 + 9 =

= -1 + 9

= 8

hope this helps!



6 0
3 years ago
Other questions:
  • What’s the domain of the graph?
    10·2 answers
  • If the area of a circle is 58 square feet, find the circumference
    8·2 answers
  • 1. what is the period of the sinusoidal function?<br> Enter your answer in the box.
    15·1 answer
  • Luca is planning to pay the restaurant bill for his coworkers. The bill was $193.75. A 4% tax was then added by the waiter. If L
    5·2 answers
  • A(n) _____ in the money supply will cause interest rates to decrease, which, in turn, causes spending to _____. A. increase; dec
    11·1 answer
  • Which students write the correct express
    7·1 answer
  • Boris rented a truck for one day. There was a base fee of $16.99, and there was an additional charge of 88 cents for each mile d
    14·1 answer
  • Sue has 20 biscuits in a tin.
    5·1 answer
  • What is the equation of the line that has a slope of 13 and goes through the point (6,−2)?
    15·1 answer
  • A Ben &amp; Jerry's Ice Cream factory makes 170 quarts of ice cream in 10 hours. How many quarts will the factory make in 36 hou
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!