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frosja888 [35]
3 years ago
13

Given the function rule f(x) = x² – 3x + 2, what is the output of f(–2)?

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

Answer:

d 12

Step-by-step explanation:

nekit [7.7K]3 years ago
3 0

Answer:

D(12)

Step-by-step explanation:

(-2)^2 + (-3)(-2) + 2 = 12

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Simplify: (2x2 − 9x + 3) + (−7x2 + 4x − 2)
Leokris [45]
Combine like terms
2x^2 + -7x^2 = -5x^2
-9x + 4x = -5x
3 + -2 = 1
put back together
-5x^2 - 5x +1
4 0
3 years ago
How many significant figures will there be in the answer to the following problem? you do not have to solve the problem. 223.4 •
Irina-Kira [14]

Answer:

5 significant figures

Step-by-step explanation:

looking at the last two digit of the numbers, it multiplication gives, 4*5=20

we already have four significant figures ,

so, 2 would be the fifth since 0 is not going to be counted

3 0
3 years ago
Evaluate the expression described below if the number is –2. The quotient of three less than twice a number and the number squar
lozanna [386]
<span>(2x-3)/x^2 
if the number is –2
then
[2(-2) - 3] / (-2)^2
= (-4-3)/4
= -7/4

answer is 
</span><span>D. -7/4</span>
4 0
2 years ago
Write the rational number as a decimal. Show your work. 5/9 -3/8 -3/11.
Bad White [126]

I have memorized facts about fractions like these, so can tell you ...

\dfrac{5}{9}=0.5\overline{5}\\\\-\dfrac{3}{8}=-3\times 0.125=-0.375\\\\-\dfrac{3}{11}=-0.27\overline{27}

_____

A fraction with 9 as a denominator is a repeating 1-digit decimal with the decimal digit being the numerator of the fraction.

A fraction with 11 as a denominator is a repeating 2-digit decimal with the two digits being 9 times the numerator of the fraction.

1/8 = 0.125, so any multiple of 1/8 is that multiple of 0.125.

4 0
3 years ago
Type the correct answer in the box. Use numerals instead of words.
Karo-lina-s [1.5K]

Answer:

6

Step-by-step explanation:

A line that passes through the point (x,y), with a y-intercept of b and a slope of m, can be represented by the equation y = mx + b.

If a line has the slope of -0.5, then m=-0.5 and the equation of the line is

y=-0.5x+b

This line passes throughthe point (10,1), then the coordinates of this point satisfy the equation of the line:

1=-0.5\cdot 10+b\\ \\1=-5+b\\ \\b=1+5\\ \\b=6

and the equation of the line is

y=-0.5x+6

Since b=6, the y-intercept of the line is 6.

7 0
3 years ago
Read 2 more answers
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