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ankoles [38]
3 years ago
9

What is the value of the expression 9x2 - 12x + 4 when x = 3?

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

9514 1404 393

Answer:

  (b)  49

Step-by-step explanation:

Put the value where x is in the expression and do the arithmetic.

  9x² -12x +4   for x=3

  9·3² -12·3 +4 = 9·9 -36 +4

  = 81 -36 +4 = 49

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Ymorist [56]

Answer:

C.4/17

Step-by-step explanation:

A proper fraction has a numerator that is less than the denominator

A. 11/10  11>10  improper

B. 15/2  15>2  improper

C.4/17  4 < 17 proper

D.6/6  6=6  improper

7 0
2 years ago
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Find the coordinates of the circumcenter of ABC with vertices A(1-11) B(8-5) C (1-5)
jasenka [17]

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use photomath

Step-by-step explanation:

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3 years ago
Find the inverse of the function.<br> f(x) = -3x + 7
LUCKY_DIMON [66]
F(x) = -3x + 7
y = -3x + 7
x = -3y + 7
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8 0
2 years ago
Can someone help me on this​
Morgarella [4.7K]

Answer:

m∠A = 91°

Step-by-step explanation:

∠A ≅ ∠B (Vertical Angle Theorem). This means that the two angles will have the same measurements.

Note that a straight line = 180° (Definition of a Straight Line).

Find the value of m∠B.

180 - 47 - 42 = m∠B

m∠B = 180 - (89)

m∠B = 91°

Remember that ∠B & ∠A are vertical angles, so they will have the same measurement.

m∠A = 91°

~

4 0
3 years ago
Find functions f and g such that h = g ∘ f. (note: the answer is not unique. enter your answers as a comma-separated list of fun
polet [3.4K]

It is given in the question that

h(x) = (fog)(x) = x^2 -81

And x^2 -81

can also be written as

(x^2 -40) -41

Therefore,

(fog)(x) = (x^2 -40)-41

f(g(x)) = (x^2 -40)-41

That gives,

g(x) = x^2 -40, f(x) = x-41

7 0
3 years ago
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