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Sergeeva-Olga [200]
3 years ago
14

Need help on these easy A B C D questions

Mathematics
2 answers:
zzz [600]3 years ago
8 0
5. C
6.D
Sorry, not a sure for number 7
cluponka [151]3 years ago
8 0
No worries Sir Chat Noir Is here 
5. A
6. A
and
7. C hope this helped 
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Find an equation of the line. Write the equation in function notation. Through (6,-1); perpendicular to 9y=x-18
docker41 [41]
The first step is to find the slope of the given line by putting its equation in the form y = mx + b.
9y = x - 18
Dividing both sides by 9, gives:
y = (x/9) - 2
The slope of the given line is therefore 1/9.
Let the slope of the perpendicular line be m.
The product of the two slopes must equal -1 for the lines to be perpendicular.
m\times\frac{1}{9}=-1
Therefore m = -9.
At this stage the equation of the required line is y = -9x + b.
Now we need to find the value of b.
Plugging the given values of a point on the line (6, -1) into the equation gives:
-1 = -54 + b; from which b = 53.
The required equation for the line is:
f(x) = -9x + 53.
8 0
3 years ago
-7=21+x help please thankyou
serg [7]
Move the 21 to the other side and change the sign

-7-21=x
x=-28

hope this helps
4 0
3 years ago
Read 2 more answers
A circle has a circumference of 11,304 units
user100 [1]
Circumference = 2 pi r

11304 = 2 x 22/7 x r
11304 x 7/2x22 =r = 1798.36
8 0
3 years ago
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"Which expression stands for "32 more than a number d"?"
kogti [31]

Answer:

32+d

Step-by-step explanation:

because it's asking for 32 added on to whatever d is

example

if d=5 it would be asking what's 32 +5

3 0
3 years ago
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Ashley is taking a road trip to visit her friend. She drives 87.5 miles before taking a break
DanielleElmas [232]

Answer:

112.5

Step-by-step explanation:

200 - 87.5 = 112.5

6 0
2 years ago
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