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Alex_Xolod [135]
3 years ago
11

Solve 4r2 – 7 = 29. a. +-6 b. +-3 c. +-4 d. +-5

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
4 0
4r^2-7=29
+7 both sides
4r^2=36
÷4 both sides
r^2=9
square root both sides
r=+/-3 B
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Of the relation
RideAnS [48]

Answer:

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5 0
3 years ago
The ratio of zinc to copper is 3:19,<br> if theres 741 copper how much zinc is there?
oee [108]

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3 0
2 years ago
Find the equation of a line that is parallel to the line y = -4× and contains the point (8,-3)
astra-53 [7]
(Note: this is hard to explain without graphing. You might want to graph both of these lines just to make sure I did this correctly. :))

Y = -4(x) is the y = mx + b where m = slope and b = the y intercept.

So the slope of line A is -4 / 1 and the y intercept is 0. (If it's 0 there is no point in writing it down, so it was left out of the equation.)


The slope of line B with be equal to the slope of line A, so we can fill that in our equation. y = -4 x + ??

We know that y increases as x decreases.

Now we just need to scale 8, -3 down until x = 0.
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(4 - 4, -2 + 1) = (0, -1)

y = -4x -1 is your final answer. Hope that helps! :)
3 0
2 years ago
Help me please
Sedaia [141]
11 pound patties
Make it an improper fraction and divide it by 1/4
8 0
3 years ago
Please i give (brainlist) if you complete it and correct answers​
Dmitriy789 [7]

5 x (4 x 3) = (5 x 4) x 3

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8 0
2 years ago
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