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deff fn [24]
2 years ago
11

3x ×?=90 somebody help me please​

Mathematics
2 answers:
Galina-37 [17]2 years ago
5 0

Answer:

30

Step-by-step explanation:

Anna007 [38]2 years ago
5 0

Answer:

Step-by-step explanation:

3x*(?)=90

?=90/3x

?=30/x

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Which of the following circles lie completely within the fourth quadrant?
Sladkaya [172]

Answer:

C. (X-9)^9 + (y+9)^2= 16

D. (X-9)^2 + (y+5)^2= 9

Step-by-step explanation:

The formula for a circle is

(X-h)^2 + (y-k)^2= r^2

where (h,k) is the center of the circle and r is the radius

The 4th quadrant is where x is positive and y is negative

Add r to the y coordinate of the center and if it is still negative, the circle is still completely in the 4th quadrant

A. (X-12)^2 + (y+0)^2= 72

The center is at 12,0 and the radius is sqrt(72) = 6sqrt(2)

This will be positive so it goes into the 1st quadrant

B. (X-2)^2 + (y+7)^2= 64

The center is at 2,-7  and the radius is 8

-7+8=1 so it goes into the 1st quadrant

C. (X-9)^9 + (y+9)^2= 16

The center is at 9,-9  and the radius is 4

-9+4 = -5  so it is completely in the 4th quadrant

D. (X-9)^2 + (y+5)^2= 9

The center is at 9,-5 and the radius is 3

-5+3 = -2 so it is completely in the 4th quadrant

4 0
3 years ago
Read 2 more answers
Help me now if i get this one wrong i wont be free
jok3333 [9.3K]

Answer: its the first one "opposite sides with equal length"

5 0
3 years ago
Anyone feel like helping me??
Digiron [165]
The angles of a triangle add up to 180 degrees

65 + 3x - 10 + 2x = 180
5x + 55 = 180
5x = 180 - 55
5x = 125
x = 125/5
x = 25 <====

m < B = 3x - 10 = 3(25) - 10 = 75 - 10 = 65 <== B is 65 degrees
m < C = 2x......= 2(25) = 50 <== C is 50
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3 years ago
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Hey I'm in 6th too, Simplify means to solve the prob
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3 years ago
Lim x-27/x¹/³-3 x-&gt;3 please can I get quick solution to this,please help me out.​
marin [14]

Answer:

which math is this? what is it asking u to do

6 0
3 years ago
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