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3 years ago

True or False

Mathematics

1 answer:

marishachu [46]3 years ago

4 0

True. A relation just pairs two sets. An object in the first set can relate to more than one in the second.

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5/3 × 20 must show work

Romashka [77]

Answer:

$5/3*20$

$5/3*20/1$

$100/3$

33.3333

Step-by-step explanation:

5 0

3 years ago

Write an addition equation that can help you find 9 - 6. Explain your answer

vfiekz [6]

9 - 6 = 3
so 3 + 6 = 9 which is an addition equation that helps you find the answer.

6 0

2 years ago

Read 2 more answers

Kind of easy giving alot points to anyone who knows

kotykmax [81]

Answer:

5 hours

Step-by-step explanation:

6 0

2 years ago

Factor the quadratic expression in the equation y=2x^2+28x+96 and use the factors to find the zeros of the equation. Then, use t

gavmur [86]

Answer:

$x=-7$

Step-by-step explanation:

We have been given an equation $y=2x^2+28x+96$ . We are asked to find the zeros of equation by factoring and then find the line of symmetry of the parabola.

Let us factor our given equation as:

$2x^2+28x+96=0$

Dividing both sides by 2:

$x^2+14x+48=0$

Splitting the middle term:

$x^2+6x+8x+48=0$

$(x^2+6x)+(8x+48)=0$

$x(x+6)+8(x+6)=0$

$(x+8)(x+6)=0$

Using zero product property:

$(x+8)=0\text{ (or) }(x+6)=0$

$x+8=0\text{ (or) }x+6=0$

$x=-8\text{ (or) }x=-6$

Therefore, the zeros of the given equation are $x=-8\text{ (or) }x=-6$ .

We know that the line of symmetry of a parabola is equal to the x-coordinate of vertex of parabola.

We also know that x-coordinate of vertex of parabola is equal to the average of zeros. So x-coordinate of vertex of parabola would be:

$\frac{-8+(-6)}{2}=\frac{-14}{2}=-7$

Therefore, the equation $x=-7$ represents the line of symmetry of the given parabola.

4 0

2 years ago

F Andre sold 16 magazine subscriptions this week, would he reach his goal? Explain your reasoning.

Misha Larkins [42]

Answer:

What are some other numbers of magazine subscriptions Andre could have sold and still reached his goal?

Write an inequality expressing that Andre wants to make at least $68.

Write an inequality to describe the number of subscriptions Andre must sell to reach his goal.

8 0

2 years ago