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GenaCL600 [577]
3 years ago
12

F(x) = 3x2 + 12x + 5

Mathematics
1 answer:
loris [4]3 years ago
6 0

Answer:

Discriminate is 84

And F(2) is 41

Step-by-step explanation:

Discriminate of a quadratic equation is given by

D=b^2-4aC

Given

F(x)=3x^2+12x+5

a=3,b=12 and C=5

D= 12^2-4*3*5=84

For F(2)

F(2)=3(2)^2+12(2)+5=41

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A cyclist cycles a distance of 44 miles in a time of 4 hours.<br> What is her average speed?
Ipatiy [6.2K]

Answer:

11 miles an hour

Step-by-step explanation:

44 miles divided by 4 hours would equal 11 miles in one hour, meaning her average speed would be 11 miles an hour

5 0
3 years ago
Read 2 more answers
A circle is centered at the point (5,-4) &amp; passes through the point (-3,2).
maxonik [38]

Equation of the circle:

(x-5)^2+(y+4)^2=100

Step-by-step explanation:

The equation of a circle is given by

(x-x_0)^2+(y-y_0)^2=r^2

where

(x_0,y_0) are the coordinates of the center of the circle

r is the radius of the circle

For the circle in this problem, we know that:

(5,4) are the coordinates of the center

We also know that the circle passes through the point (-3,2), therefore we can calculate the radius as the distance between the point on the circle and the center of the circle:

r=\sqrt{(-3-(5))^2+(2-(-4))^2}=\sqrt{(-8)^2+(6)^2}=\sqrt{64+36}=10

Therefore, the equation of the circle is:

(x-5)^2+(y-(-4))^2=10^2\\(x-5)^2+(y+4)^2=100

Learn more about circles:

brainly.com/question/4713715

brainly.com/question/3456442

brainly.com/question/3333996

#LearnwithBrainly

5 0
3 years ago
Logan and her friend went out to dinner and spent $18.50. They left a tip of $2.59.
Basile [38]
If you are suppose to find how much the spent all together then it would be 21. 09

8 0
3 years ago
D
Leviafan [203]
All you gotta do is do 11.00 decided by .44 and it’s 25
8 0
3 years ago
What is the area of a triangle with vertices at (−4, 1) , ​ (−7, 5) ​ , and ​ (0, 1) ​ ? Enter your answer in the box. ___units²
AnnZ [28]
Check the picture below.

you can pretty much count those lengths off the grid.

recall that A = 1/2 bh.

7 0
3 years ago
Read 2 more answers
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