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GenaCL600 [577]
3 years ago
7

10(-2.5)(-4) what is the answer plz explain

Mathematics
1 answer:
Illusion [34]3 years ago
7 0

Answer:

100

Step-by-step explanation:

10(-2.5) = -25 since negative times positive is negative.

-25(-4)=100 since negative times negative is positive.

Basically, the negative inverts the sign so a negative negates a positive yielding a negative while a negative negates a negative yielding a positive.

Think of it as not not vs not

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What is the distance between -a and 0
Mashutka [201]

Answer:

The answer is: a

Step-by-step explanation:

0 - a = -a. So -a + a = 0

4 0
3 years ago
ANSWER ASAP DONT SEND A FILE. WHAT IS THE RELFECTION OF THE LETTERS KLMN OVER THE X ASIS FOR THIS QUESTION
VMariaS [17]

Answer:

The points are

-5,3

-5,-2

-10,3

-10,-2

Step-by-step explanation:

Reflection..

3 0
3 years ago
HELP asap AB=85m Find the length of Line CD
Aleks [24]
CD = x
BC = y
AB = 85
BD = BC+CD = y+x

tan(angle) = opposite/adjacent
tan(28) = BC/AB
tan(28) = y/85
85*tan(28) = y
y = 85*tan(28)
y = 45.1953016912257

tan(angle) = opposite/adjacent
tan(31) = BD/AB
tan(31) = (y+x)/85
tan(31) = (45.1953016912257+x)/85
85*tan(31) = 45.1953016912257+x
51.0731526173427 = 45.1953016912257+x
51.0731526173427-45.1953016912257 = 45.1953016912257+x-45.1953016912257
5.877850926117 = x
x = 5.877850926117

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8 0
3 years ago
Put this equation into slope intercept form 6x+12y=9
Aleksandr-060686 [28]

y = - \frac{1}{2} x + \frac{3}{4}

The equation of a line in slope-intercept form is

y = mx + c ( m is the slope and c the y-intercept )

rearrange 6x + 12y = 9 into this form

subtract 6x from both sides

12y = - 6x + 9 ( divide all terms by 12 )

y = - \frac{6}{12} x + \frac{9}{12} ( which simplifies to )

y = - \frac{1}{2} x + \frac{3}{4}


8 0
3 years ago
Help with this one? Please
netineya [11]

Answer:

x = 40

Step-by-step explanation:

The figure shows two similar triangles. Thus, the side lengths of similar triangles are proportional to each other. Therefore:

\frac{24}{24 - 15} = \frac{x}{x - 25}

\frac{24}{9} = \frac{x}{x - 25}

Cross multiply

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24x - 600 = 9x

Subtract 24x from each side

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Divide both sides by -15

40 = x

x = 40

3 0
3 years ago
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