3 years ago

4. How do you solve x2 + 9x - 3 = 0 using the completing-the-square method?

Mathematics

1 answer:

____ [38]3 years ago

4 0

Answer:

i used to have a problem with this

Step-by-step explanation:

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Of the shirts in Jenny's closet, 1/2 are yellow and another 3/8 are pink. What fraction of the shirts are either yellow or pink?

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Answer: 7/8

Step-by-step explanation:

$\frac{1}{2}+\frac{3}{8}=\frac{4}{8}+\frac{3}{8}=\frac{7}{8}$

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2 years ago

Each unit in the si system is how many times larger than the next smallest unit

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3 years ago

Consider the line segment YZ with endpoints Y(-3,-6) and Z(7,4). What is the y-coordinate of the midpoint of line segment YZ?

tatiyna

Given:

Consider the line segment YZ with endpoints Y(-3,-6) and Z(7,4).

To find:

The y-coordinate of the midpoint of line segment YZ.

Solution:

Midpoint formula:

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

The endpoints of the line segment YZ are Y(-3,-6) and Z(7,4). So, the midpoint of YZ is:

$Midpoint=\left(\dfrac{-3+7}{2},\dfrac{-6+4}{2}\right)$

$Midpoint=\left(\dfrac{4}{2},\dfrac{-2}{2}\right)$

$Midpoint=\left(2,-1\right)$

Therefore, the y-coordinate of the midpoint of line segment YZ is -1.

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3 years ago

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