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GenaCL600 [577]
4 years ago
12

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

Mathematics
1 answer:
loris [4]4 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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3a+3b,for a=2 and b=4
il63 [147K]
3a + 3b, for a=2 and b=4 ... The first thing you'd do would be to plug the numbers in -

3 x 2 + 3 x 4 

Then multiply them -

6 + 12 

Then add - 

18.

So your answer should be 18.

5 0
3 years ago
What is the unit distance, Rounded to the nearest hundredth, between the points (-5, 2) and (3, 7)?
Lostsunrise [7]

Answer:

Distance=9.43 units

Step-by-step explanation:

When you have two coordinates and you need to find the distance between them, you can use the distance formula.

D=sqrt(7-2)^2+(3-(-5))^2

D=sqrt(5^2+8^2)

D=sqrt(25+64)

D=sqrt89

D=9.43, rounded to the nearest hundredth.

Therefore, your distance would be 9.43 units.

I hope this helped! Have a good rest of your day~

3 0
3 years ago
the length of a rectangle is 5 inches more then the width. the area of the rectangle is equal to 2 inches more than 4 times the
Svet_ta [14]
P = 2(L + W)
L = W + 5
A = 4P + 2

P = 2(W + 5 + W)
P = 2(2W + 5)
P = 4W + 10

A = 4P + 2
A = 4(4W + 10) + 2
A = 16W + 42

A = L * W
A = W(W + 5)
A = W^2 + 5W

W^2 + 5W = 16W + 42
W^2 + 5W - 16W - 42 = 0
W^2 - 11W - 42 = 0
(W + 3)(W - 14) = 0

W - 14 = 0
W = 14 <==

L = W + 5
L = 14 + 5
L = 19 <==

P = 2(19 + 14)
P = 2(33)
P = 66

A = L * W
A = 19 * 14
A = 266

answer : length = 19, width = 14....perimeter = 66....area = 266
5 0
3 years ago
Evaluate the formula V=B h over 3 for B=15 inches two squared and h=28inches?I WILL MARK AS BRAINLY
meriva
V=B/14-28...........
4 0
3 years ago
Defining congruent triangles
seropon [69]

Answer:

E -->R

D-->K

O-->O

Step-by-step explanation:

Assuming you are asking for congruent parts, correspondence is the part which corresponds and is also equal.

Here Angle E corresponds and is congruent to Angle R in these congruent triangles.

Angle D is congruent and corresponds to Angle K for these congruent triangles.

Angle O is equal to Angle O as they are vertical angles across a vertex.

5 0
3 years ago
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