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velikii [3]
3 years ago
7

F(x) = 2x^2 Find f(-6)

Mathematics
1 answer:
katrin2010 [14]3 years ago
7 0

Answer:

f(-6) = 72

Step-by-step explanation:

Input -6 for x :

2(-6)²

Complete with P.E.M.D.A.S :

2(36)

then :

72

so therefore :

f(-6) = 72

or

f of x equals 72

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HELP!!! The probability that a male’s foot is between 10 and 12.5 inches is__ <br> p(10
ryzh [129]

Answer:

I suggest you use Socratic, it solves questions like this.

Step-by-step explanation:

4 0
3 years ago
If line segment AB is a diameter and is at right angles to line segment CD, what is the ratio of CD to DE?
DedPeter [7]
The answer to this is 2.

There are a number of proofs to this. Here, we use Euclidean geometry with trigonometry. If we let the center of the circle to be O.
Then, we have the following equations for the angles
CEO = OED = 90

Since, CO = OD because they're radii of the circle, then
ΔCOD is an isosceles triangle and
OCE = ODE

CE + DE = CD
dividing the whole equation by DE
CE/DE + 1 = CD/DE

Using trigonometric functions:
CE = OC cos OCE and
DE = OD cos ODE

Substituting.
OC cos OCE / OD cos ODE + 1 = CD/DE

Since, OCE = ODE,
cos OCE = cos ODE

The equation would be reduced to:
1 + 1 = CD/DE
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4 0
4 years ago
**Anyone who answers randomly for points is getting reported..**
Semenov [28]

Answer:20x+50= 5x+70


Step-by-step explanation:


x = number of cavities

use the subtraction property of equality and solve for x 

20x+50 = 5x+70

-5x -50    -5x - 50


15x = 20


Then you divide 20 by 15

15x = 20

-----   -----

15      15


x= 4/3



5 0
4 years ago
How many times must Henry fill a 350 mL cup to an empty 10.5 L sink that is filled with water?
Akimi4 [234]
10.5 L = 10500 mL
# times = 10500/350 = 30 times
5 0
3 years ago
Read 2 more answers
The mother's age is 8 times her son's age. After 6 years, the age of the mother will be 9/2 times her son's age. The present age
Sonja [21]

Answer:

s=6 years

m=48 years

Step-by-step explanation:

Let

Mother's age=m

Son's age=s

m=8*s

m=8s (1)

m+6=9/2(s+6)

m+6=9/2s+27 (2)

Substitute (1) into (2)

m+6=9/2(s)+27

8s+6=9/2s+27

8s+6-9/2s-27=0

8s-9/2s-21=0

(16-9/2)s-21=0

7/2s=21

s=21÷7/2

=21×2/7

=42/7

s=6

Present age of the son=6

m=8s

=8(6)

m=48

Present age of the mother=48

5 0
3 years ago
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