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yulyashka [42]
3 years ago
12

Which set is closed under the operation multiplication?

Mathematics
1 answer:
vlada-n [284]3 years ago
6 0
D is under multiplication
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Elimination method<br> x+4y=1<br> -3x-5y=-10
nevsk [136]

Answer:

x = 5 and y = 1 is the answer.

Step-by-step explanation:

(-5)(x+4y=1)

(-4)(-3x-5y=-10)

-5x + -20y = -5

12x + 20y = 40

———————

7x + 0 = 35

7x= 35

7x/7 = 35/7

x = 5

subtitution:

x= 5

x + 4y = 1

5 + 4y = 1

4y = 1 - 5

4y = 4

4y/4 = 4/4

y = 1

3 0
2 years ago
What are the coordinates of the point where the two lines intersect
DiKsa [7]
The coordinates called Y=INTERCEPT or the INITIAL VALUE.
hope i help you
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5 0
3 years ago
Which number line represents all of the values of x for the equation x2 = 16? A number line is shown from negative 10 to 0 to po
Svetllana [295]
Quite simple when you take out the useless stuff you added in. Its 16
4 0
3 years ago
A car sold from a dealership is 25,700 if the sales person receives 1.5% commission on the price of the car how much commission
snow_tiger [21]

Answer:

385.50

Step-by-step explanation:

4 0
3 years ago
A triangle has one angle measuring 3X degrees a second angle measures 2X +20°
Lena [83]
Answer : x = 20

Explanation :
3x + 2x +20 + 4x - 20 = 180

(3+2+4=9)

9x + 20 - 20
The 20s cancel each other out because one is positive and the other is negative

9x = 180

9x/9 = 180/9

X = 180 divided by 9

X = 20
7 0
3 years ago
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