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Sophie [7]
3 years ago
12

Given that F(x) = 5x^2-2x+7

Mathematics
1 answer:
tia_tia [17]3 years ago
3 0
Whats the question for this question 
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Find the circumstances of the circle
Mkey [24]
The meaning of circumference is to find the distance around a circle or in other words perimeter by using the formula C=2πr or C=<span>πd.

On this case it is asked you to find the circumference of a circle with a diameter of 3 meters, so you will use the formula C=2</span><span>πr.

C=2</span><span>πr
C=2(3.14)(3)
C=18.84 meters

The circumference of the given circle is 18.84 meters.</span>
8 0
3 years ago
What are the solutions of the equation ( X -25 )^ 2 equals 36
fgiga [73]

Answer:

x = 31, x = 19

Step-by-step explanation:

(x-25)^2=36\\\sqrt{(x-25)^2}=\sqrt{36}\\x-25=6 or -6\\\\x-25=6\\x=31\\\\x-25=-6\\x=19

5 0
3 years ago
What is a negative number minus a negative number?
SVETLANKA909090 [29]

Answer:

-x-(-y) = y-x

Step-by-step explanation:

lets say you have two negative numbers, -x and -y (x and y are positive).

-x-(-y) = y-x

8 0
3 years ago
Read 2 more answers
True or False? An equiangular triangle can never be scalene. A. True B. False
slavikrds [6]
Its true because scalene doesn't have equal sides 
8 0
3 years ago
Read 2 more answers
16) Please help with this question. Please answer with normal text (Ex: pi/4,etc... not math settings).
svetlana [45]
We can use tan(x) = sin(x)/cos(x). Plug in numbers to get:
tan(x+pi/2) = sin(x+pi/2)/cos(x+pi/2) 

Here, you can use the sin and cos addition identity:
tan(x+pi/2) = (sin(x)cos(pi/2)+cos(x)sin(pi/2))/(cos(x)cos(pi/2)+sin(x)sin(pi/2))

If you simplify this, you get:
0+cos(x)/0-sin(x) 

Which is the definition of cot(x). But, we can't forget about the '-' sign, so, the answer is -cot(x)
6 0
3 years ago
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