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sleet_krkn [62]
2 years ago
9

**TIMED** I need help

Mathematics
2 answers:
Fiesta28 [93]2 years ago
7 0

Answer:

10

Step-by-step explanation:

15-5=10, simple.

lakkis [162]2 years ago
5 0

Step-by-step explanation:

from what I understand this should be the answer:

<u>x</u>. <u>y</u>

<u>12</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>7</u><u>. </u><u> </u><u>Because</u><u> </u><u>y</u><u>=</u><u>x-5</u><u> </u><u>and</u><u> </u><u>7</u><u>=</u><u>12-5</u>

<u>30</u><u>. </u><u> </u><u> </u><u> </u><u>25</u><u> </u><u>Because</u><u> </u><u>25</u><u>=</u><u>30-5</u>

<u>15</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>10</u><u> </u><u>Because</u><u> </u><u>10</u><u>=</u><u>15-5</u>

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Marat540 [252]

Answer:

Triangle DEF is a right, scalene triangle. It is not isosceles, obtuse, acute, or equilateral

Step-by-step explanation:

All we know about m and n are that they are not equal to each other and they are positive. This was given in the problem. See image. Once it is graphed you can see on the graph the lengths of DE and EF. Use Pythagorean theorem to calculate DF. see image.

DE is horizontal and EF is vertical, so you can see their slopes or calculate using a formula. Calculate the slope of DF. Slope is y-y on top of a fraction and x-x on the bottom of the fraction.

Lastly, use midpoint formula to find the midpoints. Average the x's and average the y's to find the x- and y-coordinates of the midpoints. See image.

Finally, DEF is a right triangle. The graph as well as the slopes show us that DE and EF form a right angle. So DEF must be a right triangle (and not obtuse nor acute) We were told that m doesNOT equal n, so the triangle cannot have two equal sides, so it cannot be isosceles (2 equal sides) nor equilateral (3 equal sides) It has 3 different lengths of sides; that is called scalene.

4 0
2 years ago
If x &gt; 0, which of the following is positive? <br> 1. -x<br> 2. x^2<br> 3. (-x)^3<br> 4. 1/-x
lapo4ka [179]

Answer:

x^2

Step-by-step explanation:

x > 0~\text{means that x is positive number.}

\text{Square of both negative and positive numbers are always positive.}\\\\\text{So,}~ x^2~\textbf{is positive.}

3 0
1 year ago
Mrs. Post bought a carton of eggs containing 24 eggs to use for cookies. When she got home 3 were broken. What percent of the eg
Kitty [74]

Answer:

12.5%

Step-by-step explanation:

Take the number of eggs that were broken over the total number of eggs

3/24

1/8

As a decimal

.125

Change to percent form

12.5%

8 0
3 years ago
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Nata [24]
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zepelin [54]
X=12 because 3 times 12 equals 36. if you divide by 3 on both sides you would be left with that
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3 years ago
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