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AfilCa [17]
3 years ago
10

How do you estimate an area?

Mathematics
2 answers:
jeka943 years ago
8 0
Put the numbers into a way that you can easily answer in your head. 47*63 40*70
adell [148]3 years ago
4 0
You calculate an answer by multiplying each side by each other. hope this helps.
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I NEED HELP FAST! Find the measure of the missing angles.
loris [4]

Angle G = 130 degrees

Angle H = 50 degrees

Angle K = 74 degrees

Angle M = 106 degrees

<u>Angle G would be 130 degrees</u> because it's a vertical angle, and vertical angles are always alike.

<u>Angle H would be 50 degrees</u> because it's an adjacent angle, and we also know that one side of the line is always 180 degrees so we have an equation that looks like this 180 - 130 = 50 degrees

<u>Angle K would be 74 degrees</u> because it's a vertical angle.

<u>Angle M would be 106 degrees</u> because it's an adjacent angle.

7 0
2 years ago
A hippopotamus can run at the speed of about 24.9 miles per hour. At this rate, how far can the hippo run in 30 minutes? Use the
tigry1 [53]
24.9 miles/hour = 24.9/60 miles/minute = .415 miles/minute 

<span>distance = speed * time </span>
<span>= .415 * 30 = 12.45 miles</span>
4 0
3 years ago
Read 2 more answers
Find (f*g) (x) for the following functions. f(x) = 9x2 – 2x – 9 g(x) = 11x – 9
e-lub [12.9K]

Answer:

all work is shown and pictured

4 0
3 years ago
Read 2 more answers
Use the quadratic formula to solve 4x^2 - 8x - 60 = 0
zhannawk [14.2K]
A. You can factor it to those terms
4 0
3 years ago
What is the standard form of the equation of a line for which the length of the normal segment to the origin is 8 and the normal
jeka57 [31]
Slope of line = tan(120) = -tan(60) = - &radic;3
Distance from origin = 8

Let equation be Ax+By+C=0
then -A/B=-&radic;3, or
B=A/&radic;3.
Equation becomes
Ax+(A/&radic;3)y+C=0

Knowing that line is 8 units from origin, apply distance formula
8=abs((Ax+(A/&radic;3)y+C)/sqrt(A^2+(A/&radic;3)^2))
Substitute coordinates of origin (x,y)=(0,0)  =>
8=abs(C/sqrt(A^2+A^2/3))
Let A=1 (or any other arbitrary finite value)
solve for positive solution of C
8=C/&radic;(4/3) => C=8*2/&radic;3 = (16/3)&radic;3

Therefore one solution is
x+(1/&radic;3)+(16/3)&radic;3=0
or equivalently
&radic;3 x + y + 16 = 0

Check:
slope = -1/&radic;3  .....ok
distance from origin
= (&radic;3 * 0 + 0 + 16)/(sqrt(&radic;3)^2+1^2)
=16/2
=8  ok.

Similarly C=-16 will satisfy the given conditions.

Answer  The required equations are
&radic;3 x + y = &pm; 16 
in standard form.

You can conveniently convert to point-slope form if you wish.




4 0
3 years ago
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