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Leno4ka [110]
3 years ago
6

I need some questions for grade 8 for algebraic manipulation

Mathematics
1 answer:
ki77a [65]3 years ago
6 0

Answer:

x + y + z + 13 ÷ m has

A. one term

B. two term

C. three term

D. four term

-2x + 5 + 10x - 9

3(x + 7) + 2(-x + 4) + 5x

6+3x-5y+7x-6y+2

2x - 8 = -x + 4

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Write the quadratic equation with the given roots 3 and -2/3
trapecia [35]

<em>Answer: </em>

<em>y  =  </em>x^{2}<em> −  7  x  3  − 2</em>

<em />

<em>Step-by-step explanation:</em>

<em>you gotta work backwards to find the factors from the roots then multiply the factors together.</em>

7 0
3 years ago
What is the length of a kite string that is 6 meters above and 9 meters away from where it is being held? Round to the nearest t
ivann1987 [24]

Answer:

10.8 meters

Step-by-step explanation:

This situation forms a right triangle, where the length of the kite string is the hypotenuse, the distance from where it is held is the long leg, and the height is the short leg.

Use the pythagorean theorem to solve for c, the length of the kite string.

a² + b² = c²

6² + 9² = c²

36 + 81 = c²

117 = c²

10.8 = c

So, the length of the kite string is 10.8 meters

7 0
3 years ago
PLS HELP THX PLS jrkdkekmc
xxTIMURxx [149]

Answer: No

Step-by-step explanation:

The c kind of cut off, but you can use slopes to figure it out. The rule for a perpendicular slope is the opposite reciprocal. Assuming that C is the right angle, since right triangles typically work that way, we can figure out the slopes for ac and bc. The slopes are not reciprocals:

AC= -5/2

BC=  -1/3

This isn't a right triangle because the lines are not perpendicular.

5 0
3 years ago
Davis runs at a speed of 4 3/4 miles per hour. at this rate how far can he run in 3 1/2 hours
ch4aika [34]
I hope this helps you

6 0
4 years ago
-3 is a solution to 4x + 2 &lt; -6
adelina 88 [10]

Answer:

-3 is a solution

Step-by-step explanation:

4x+2 < -6

subtract 2 from each side

4x < -8

divide by 2

x < -2

-3 is a solution


3 0
4 years ago
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