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aliya0001 [1]
3 years ago
10

Divide 7/9 by -11/7 then simplify

Mathematics
1 answer:
gayaneshka [121]3 years ago
6 0
Invert the divisor and then multiply 7/9 by your result:

 7      -7        -49
--- * ------ = ---------
 9      11          99
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Find an angle in each quadrant with a common reference angle with 77°, from 0°≤θ<360°
mr Goodwill [35]

Answer:

Q1: 77°, Q2: 103°, Q3: 257°, Q4: 283°

Step-by-step explanation:

Note: Q1 = Quadrant 1

Q1: 77°

Q2: 180° - 77° = 103°

Q3: 180° + 77° = 257°

Q4: 360° - 77° = 283°

8 0
3 years ago
Read 2 more answers
Which could be the first step in solving this system of equations by substitution?
Ainat [17]

Answer:

The first step is to replace the y in y-x=15 with 7x (we can do this because the first equation tells us that they're equal)

solve and get

(2.5,17.5)

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Step-by-step explanation:

The first step is to recognize that y=7x which means that we can just replace the y in the second equation with 7x

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6x=15

x=2.5

Then we can solve for y

y=7(2.5)

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3 0
3 years ago
Solve the system of equations.<br><br> 5x + y = 9<br> 3x + 2y = 4
tiny-mole [99]
Y=-5x+9

3x+2(-5x+9)=4
3x-10x+18=4
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The answer is (2,-1) :)
5 0
3 years ago
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Find the volume of the prism.
ExtremeBDS [4]

Answer:

Its A.

Step-by-step explanation:

remember its rectangle 1 + rectange 2.Once i did that i have seen the total volume must be greater then answer B

so it must be a

6 0
3 years ago
Please help on this one?
tia_tia [17]

On the right side we have st which is the same as s*t or s times t

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d/t = s

s = d/t

Answer: Choice A)

3 0
3 years ago
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