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Sergio039 [100]
3 years ago
13

Write 9 minutes less than Chang’s time in algebraic expression

Mathematics
1 answer:
Ivanshal [37]3 years ago
5 0

Answer:

  t-9

Step-by-step explanation:

If t represents Chang's time in minutes, then 9 minutes less is ...

  t -9

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You have an equation y=x+7. Is the ordered pair (1,6) a solution? Yes or no?
vaieri [72.5K]
Answer:
no

step-by-step explanation:
y=x+7
x is the slope of 1
7 is the y-intercept
because 7 is the y-intercept and the slope is positive it never touches (1,6)
8 0
3 years ago
What's the length of the missing leg?<br><br>​
ValentinkaMS [17]

Answer:

<h2><u><em>10</em></u></h2>

Step-by-step explanation:

<h2>you have to multiply 5 x 4 and then divide by 2 because that the formula for a triangle.</h2>
7 0
3 years ago
Which points are on the perpendicular bisector of the given segment? Check all that apply. Please explain how you got your answe
ser-zykov [4K]
First, you have to find the equation of the perpendicular bisector of this given line. 
to do that, you need the slope of the perpendicular line and one point.
Step 1: find the slope of the given line segment. We have the two end points (10, 15) and (-20, 5), so the slope is m=(15-5)/(10-(-20))=1/3
the slope of the perpendicular line is the negative reciprocal of the slope of the given line, m=-3/1=-3 
step 2: find the middle point: x=(-20+10)/2=-5, y=(15+5)/2=10      (-5, 10)
so the equation of the perpendicular line in point-slope form is (y-10)=-3(x+5)

now plug in all the given coordinates to the equation to see which pair fits:
(-8, 19): 19-10=9, -3(-8+5)=9, so yes, (-8, 19) is on the perpendicular line. 

try the other pairs, you will find that (1,-8) and (-5, 10) fit the equation too. (-5,10) happens to be the midpoint. 

4 0
3 years ago
Read 2 more answers
Mafs stuff below<br> pls halp
s344n2d4d5 [400]
Answer: 37
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6 0
3 years ago
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Here are the percents of the popular
Murljashka [212]

Answer:

Ok, you should first order every number in the regular order (1,2,3,4,5,6,7,and so on) or (1.2,1.3,2.4,5.9).

43.2, 43.4, 47.9, 49.2, 49.6, 49.7, 50.1, 50.7, 51.2, 53.9, 55.1, 57.4, 58.8, 60.7, 61.1.

Median means the exact middle and here there are total of 15 different numbers so we know this is going to be easier if this was even. 50.7 is the median because it is in the middle and there are an even number of numbers on each side to it, 7.

Step-by-step explanation:

brainly.com/question/19573936

7 0
2 years ago
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