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3 years ago

I need this ASAP please

Mathematics

1 answer:

Oksanka [162]3 years ago

3 0

Yes..The answer s D. because the circles are congruent and in the question, it stated that it wanted circles that were similar, not congruent

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What is the value of the expression 2x2+3xy-y2, when x=2 And y=-4

Otrada [13]

Plug in 2 for x, and -4 for y

2(2)² + 3(2)(-4) - (-4)²

2² = 4(2) = 8
3(2) = 6(-4) = -24
-4² = 16

8 - 24 - 16 = answer

Simplify.

answer = 8 - 40
answer = -32

-32 is your answer

hope this helps

7 0

3 years ago

15. Identify the slope of the line below and state the equation of the line.

mamaluj [8]

Answer:

Slope: m = 0

Equation: y = 3

Step-by-step explanation:

The equation of a line has the following format:

$y = mx + b$

In which m is the slope.

We choose two points which the equation crosses.

I am going to choose (0,3) and (1,3)

(0,3)

When x = 0, y = 3. So

$y = mx + b$

$3 = 0m + b$

$b = 3$

(1,3)

When x = 1, y = 3. So

$y = mx + 3$

$3 = 1m + 3$

$m = 0$

Slope: m = 0

Equation: y = 3

6 0

3 years ago

Factor 3h2 – 11h - 42

Zina [86]

The answer is D
3*-42=-126
The factors of -126 that add to -11 are 7 and -18
replace -11h with 7h-18h
3h^2 + 7h - 18h - 42
Factor the first two terms and last two terms
h(3h+7) - 6(3h+7)
See how the two parentheses are the same?
THE ANSWER IS BELOW!!
(h-6)(3h+7)
the first parentheses has the terms that were outside, and the second has the original bracketed terms
This matches option D (it just multiplies the terms backwards, which gives the same result)

7 0

3 years ago

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Reptile [31]

Answer:

you would way nothing

Step-by-step explanation:

4 0

2 years ago

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Evaluate f(x) = –x2 + 1 for x = –3. –9 4 –4 –8