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2 years ago

PLEASE HELP WITH THIS QUESTION!!!

Mathematics

2 answers:

zalisa [80]2 years ago

4 0

I think c because b doesn’t make sense cause it says reflection when it’s not going to be a reflection since d is added

gregori [183]2 years ago

3 0

The answer is C. The answer is C

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EASY WORK!!!plz look at the photo.

Natasha2012 [34]

Answer:

first one is -6 and +6

Step-by-step explanation:

4 0

3 years ago

Write 7/50 as a decimal

Sophie [7]

0.14

You divide 7 by 50.

5 0

2 years ago

Read 2 more answers

The graph shows Marcia's walk. Which statement best describes what Marcia could be doing on the interval from B to C? A. Marcia

vodomira [7]

Answer:

B. Maria is walking home

Step-by-step explanation:

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2 years ago

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Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.

jeka94

Answer:

$x=4+2\sqrt{3}$

$x=4-2\sqrt{3}$

Step-by-step explanation:

<u>Completing the square</u>

when $ax^2+bx+c=0$

Given equation:

$3x^2-24x+40=28$

Subtract 40 from both sides:

$\implies 3x^2-24x=-12$

Divide both sides by 3:

$\implies x^2-8x=-4$

Add the square of half the coefficient of $x$ to both sides:

$(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

$\implies x^2-8x+16=-4+16$

Factor the left side and simplify the right side:

$\implies (x-4)^2=12$

Square root both sides:

$\implies x-4=\pm\sqrt{12}$

Add 4 to both sides and simplify the radical:

$\implies x=4\pm\sqrt{4 \cdot 3}$

$\implies x=4\pm\sqrt{4}\sqrt{3}$

$\implies x=4\pm2\sqrt{3}$

5 0

1 year ago

I really need help can somebody help me please

Grace [21]

Answer:

To find out the range, you check the minimum and maximum of the graph, and then check the y-component of these minimum and maximum.

You would get the minimum(-6, -6), and maximum(3, 4), get the y-component of these two points, you got the range: -6 to 4

Hope this helps!

7 0

3 years ago