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2 years ago

BRAINLIEST, THANKS AND 5 STARS IF ANSWERED CORRECTLY.

Mathematics

2 answers:

statuscvo [17]2 years ago

6 0

B has two pre-images of -7 so it is not a function

iVinArrow [24]2 years ago

4 0

B. (-7, 3), (1, 2), (5, 3), (-7, 2)

Since

x = − 7 produces y = 3 and y = 2

So the relation is not a function.

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The sum of two numbers is $30$. the difference of twice the larger number and three times the smaller number is $5$. what is the

Shtirlitz [24]

X+y=30
2x-3y=5

y=30-x

2x-3(30-x)=30
2x-90+3x=30
5x=120
x=24

y=30-x
y=30-24
y=6

The positive difference between the two numbers is 18.

8 0

2 years ago

3(x + 1) = -2(x - 1) - 4

Svetllana [295]

Answer:

Step-by-step explanation:

1. Distribute

3x + 3 = -2x + 2 - 4

2. Simplify

-2x + 2 - 4

2-4 = -2

-2x - 2

3. Solve

3x + 3 = -2x - 2

+2x +2x

4. Cont. Solving

5x + 3 = -2

-3 -3

5x = -5

5. Divide by 5

5x = -5

/5 /5

Hope this helped,

Kavitha Banarjee

8 0

2 years ago

I really need some help please

hichkok12 [17]

Answer:

(1, - 1 ) and (5, - 3 )

Step-by-step explanation:

To determine which points are solutions of the inequality.

Substitute the x/y values into the left side of the inequality and compare with the right side.

(- 6, - 3)

- 3 + 12 = 9 > - 3 ← not a solution

(1, - 1 )

- 1 - 2 = - 3 ≤ -3 ← this is a solution

(5, - 3 )

- 3 - 10 = - 13 < - 3 ← this is a solution

(0, - 2 )

- 2 - 0 = - 2 > - 3 ← not a solution

(7, 12 )

12 - 14 = - 2 > - 3 ← not a solution

8 0

3 years ago

Which equation has the same solution as x2 + 4x – 13 = 5?

max2010maxim [7]

Answer:

x=4

Step-by-step explanation:

6 0

2 years ago

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Does the sequence 120,90,60,30..... converge or diverge?

Olenka [21]

The sequence conveges

8 0

2 years ago

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