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BaLLatris [955]
3 years ago
15

What is 9-m=8 in inverse operation form

Mathematics
1 answer:
aniked [119]3 years ago
6 0
Solve for m by simplifying both sides of the equation thrn isolate the variable. M=1
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What is the equation of the quadratic graph with a focus of (2, 0) and a directrix of y = −12?
Alexxandr [17]
Distance from  the point (x,y) to the focus  = distance of (x,y) from the directrix
so we have

sqrt  [(x - 2)^2 + y2]  = 12 + y

squaring both sides
x^2 - 4x + 4 + y^2 = 144 + 24y + y^2

x^2 - 4x + 4 = 144 + 24y

24y = x^2 -4x - 140

y = x^2/24 - x/6 -  35/6    is the required equation
8 0
3 years ago
1. 5% of $30<br> 2. 15% of $70<br> 3. 0.4% of $100<br><br> SHow your steps and working
PolarNik [594]
0.05 x 30 = 1.5

0.15 x 70 = 10.5

0.004 x 100 = 0.4
3 0
3 years ago
Read 2 more answers
HELP! <br> What is the value of r? <br><br> 3/5 (r - 7) = 1
Lunna [17]
3r/5 -21/5=1
3r-21=5
3r=26
r= 26/3
6 0
3 years ago
I need help ASAP...
Leona [35]
Length = 6.25 feet

Your dad is designing a new garden for your
backyard. He has 20 feet of fencing to go
around the garden.
Let the width is X.
Length is 2 1/2 feet longer than the width i.e. (×+2 1/2) = (×+2.5) feet Perimeter = 20 feet
2(1+b) = 20
(I+b) = 10
(x+2.5+x) = 10
2x+2.5 = 10
2x = 7.5
x = 3.75 feet
Length = (x+2.5)
= (3.75+2.5)
= 6.25 feet
So, the length of the garden is 6.25 feet.
4 0
2 years ago
Read 2 more answers
Cindy found a collection of baseball cards in her attic worth $8,000. the collection is estimated to increase in value by 1.5% p
Sergio [31]
A]
Exponential function is given by the form:
y=a(b)ˣ
where:
a=initial value
b=growth factor
From the question:
a=$8000, b=1.015, 
thus the exponential growth function of this situation is:
y=8000(1.015)ˣ

b] The value of the collection after 7 years will be:
x=7 years
Using the formula:
y=8000(1.015)ˣ
plugging the values we get:
y=8000(1.015)⁷
y=8,878.76

Answer: $8,878.76
7 0
4 years ago
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