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katovenus [111]
3 years ago
13

F(x)=2x^2-5x G(x)=3x^3 Find f(2) A.-2 B.-18 C.24 D.6

Mathematics
2 answers:
Sati [7]3 years ago
5 0
A -2 I really don’t know so can you help me
jeyben [28]3 years ago
4 0

Answer:

A

Step-by-step explanation:

To evaluate f(2), substitute x = 2 into f(x), that is

f(2) = 2(2)² - 5(2) = 2(4) - 10 = 8 - 10 = - 2 → A

You might be interested in
The Benjamin Franklin Parkway in Philadelphia, PA, runs diagonally from City Hall to the Philadelphia Museum of Art. In the scal
Ghella [55]

Answer:

6895ft

Step-by-step explanation:

Given data

The coordinates

City Hall is located at (11.4, 1.2)       x1,y1= 11.4, 1.2

Museum of Art is located at (1.5, 10.8)  x2,y2= 1.5, 10.8

Required:

the distance between the two points

Applying the Pythagorean theorem as

d= \sqrt((x_2-x_1)^2+(y_2-y_1)^2)   we can find the distance by substituting the given point coordinates

d= \sqrt((1.5-11.4)^2+(10.8-1.2)^2)\\\\d= \sqrt((-9.9)^2+(9.6)^2)\\\\d= \sqrt(98.01+92.16)\\\\d= \sqrt190.17\\\\d=13.79

in feet, we are told that a unit is 500 ft

then 13.79 will be 500*13.79

=6895.107ft

=6895ft

3 0
3 years ago
Smita is twice as old as Vinita. The sum of their ages is 24. How old is Vinita?
Levart [38]

Answer:

Vinita is 12 years old

Step-by-step explanation:

24 / 2 = 12

12 + 12 = 24

6 0
2 years ago
Read 2 more answers
Please help thank you.
Cloud [144]
Question 1:
All sides of an equilateral triangle are equal.
7x - 5 = 3x + 15
Add both sides by 5 and subtract both sides by 3x
4x = 20
x = 5
(Whoa! Watch out for the first choice! We're looking for the length of a side, not the value of x)
Plug x = 5 into 3x + 15.
You get 30. All the sides have a length of 30 in.
The last choice is your answer.

Question 2:
Draw it (or just look at the image).
I'm a terrible artist.
Angle CAB = Angle ACB
Angle CAB + Angle ACB + Angle ABC = 180
2 * Angle CAB + Angle ABC = 180
2x - 6 + 4x - 3 = 180
6x = 189
x = 31.5
(Again! Watch out! We're not looking for the value of x!)
Angle CAB = Angle ACB = x -3 = 31.5 - 3 = 28.5
The first choice is your answer.

Question 3:
The second choice is your answer.
There's not much explanation... That's what it's called.

Have an awesome day! :)

4 0
2 years ago
What is the result of converting 2.3miles into yards
seraphim [82]

Answer:

4048 yards

Step-by-step explanation:

1 mile = 1760 yards

( Multiply by 2.3 )

2.3 miles = 4048 yards

5 0
3 years ago
Read 2 more answers
Solve N=2rt^2-7rx for x​
galben [10]

Answer:

          N - 2 r t²

x =  -   ------------

                7x

Step-by-step explanation:

N = 2 r t² - 7 r x

solve for x

N = 2 r t² - 7 r x

N + (-2 r t²) = (2 r t²  - 7 r x) + (-2 r t²)

N - 2 r t² = 2 r t² - 7 r x - 2 r t²

N - 2 r t²  - 2 r t² +  2 r t² = - 7 r x

N - 2 r t² = 7 r x

therefore,

          N - 2 r t²

x =  -   ------------

                7x

3 0
2 years ago
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