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Georgia [21]
3 years ago
14

Please help! I don’t understand this!

Mathematics
2 answers:
Katen [24]3 years ago
5 0

Answer:

f(3)=13

Step-by-step explanation:

F(x)=2x^2 -3x+4

f(3)= 2(3)^2 -3(3) +4

f(3)= 2(9) -(9) +4

f(3)= 18-9+4

f(3)=9+4

f(3)=13

boyakko [2]3 years ago
3 0

Answer:

f(3) = 13

Step-by-step explanation:

Given f(x) =  2x^{2} -3x + 4

For f(3), solve by using the polynomial remainder theorem, need to dive by (x-3) because the remainder theorem says if a polynomial f(x) is divided by x-r, the remainder is a constant f(r);

therefore f(3) = 13 (see image attached)

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The length of the hypotenuse of a right triangle is 7 feet, and the length of one leg is 4 feet. what is the length of the other
topjm [15]

The length of the other leg to the nearest tenth of a foot is 5.7 feet.

What is Pythagorean theorem?

  • A theorem in geometry: the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.
  • The Pythagoras theorem equation is expressed as, c^{2} = a^{2} + b^{2}, where 'c' = hypotenuse of the right triangle and 'a' and 'b' are the other two legs.

We can use the Pythagorean Theorem to find the length of the other leg

a^{2} + b^{2} = c^{2}

"a" and "c" represent the two legs of the triangle and "b" represents the perpendicular.

So,

      b^{2} = c^{2} - a^{2}

        =  7² - 4²

  b = \sqrt{49 - 16}

  b = \sqrt{33} ⇒ 5.7 feet

Therefore, the length of the other leg to the nearest tenth of a foot is 5.7 feet.

Learn more about Pythagorean Theorem brainly.com/question/14605061

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4 0
2 years ago
Write a sentence to model the following equation:<br> -20+20=0
klemol [59]

Answer:

Step-by-step explanation:

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4 0
3 years ago
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now we sub
y - 3 = -3(x - 1) <===
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4 years ago
How much will be in an account at the end of 2 years if 12,000 is invested at 5% compounded annually
MatroZZZ [7]
That would be 
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3 0
3 years ago
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djyliett [7]

Answer:

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I mean the 2:3 ratio just means that for every 2 children it’s 3 adults so if we’re going by there are 100 people there there’s 40 kids and 60 adults

6 0
3 years ago
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