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BlackZzzverrR [31]

2 years ago

6

Which output in this table is incorrect?

1 answer:

IrinaVladis [17]2 years ago

6 0

Answer:

She hang share Bev's jabbed s so Johannesburg is bans ban jobs bash

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Skyler goes to a school which has 1000 students in it. She asks 40 random students whether they like the new 8.30am start to the

harina [27]

30/40 say no, so x/1000 would say no. 1000/40=25, 25*30=750. So, about 750 would dislike it.

5 0

3 years ago

2 good 2 be truee???? pls help

Kaylis [27]

Answer:

the correct answer is 23$

Step-by-step explanation:

15% off takes 15% of the whole price

hope this helps

4 0

3 years ago

Select the correct answer.

Eva8 [605]

Answer:

Equation C: 5/8x + 2..5 = 3/8x + 1.5 + 1/4x

Step-by-step explanation:

Let us go through each of the equations one by one.

Equation A: $2.3y+2+3.1y=4.3y+1.6+1.1y+0.4$

This simplifies to

$5.4y+2=5.4y+2$

which has infinitely many solutions.

Equation B: $32x+25-21x=10x$

this simplifies to

$x+25=0$

$x=-25$

which is exactly one solution.

Equation C: $\frac{5}{8} x+2.5=\frac{3}{8}x+1.5+\frac{1}{4} x$

this simplifies to

$\frac{5}{8} x+2.5=\frac{5}{8} +1.5$

$2.5=1.5$

There's no way this is going to be possible; this equation has no solutions.

Equation D: $\frac{1}{3} x+\frac{1}{7} x=\frac{3}{7} x$

this gives

$\frac{1}{3} =\frac{2}{7} y$

$y=\frac{7}{6}$

which is exactly one solution.

Thus we see that it is equation C that has no solutions.

3 0

3 years ago

What are the x-intercepts of y=x^2+2x-15

Sedbober [7]

Answer:

$(-5,0)$ and $(3,0)$

Step-by-step explanation:

Think about it.

What two numbers multiply to -15 and add up to 2?

The answers are 5 and -3.

So plug that into the factored form of a parabola.

$y=(x+5)(x-3)$

To find the x-intercepts, plug in 0 for $y$ .

$(x+5)(x-3)=0$

Since we are multiplying, at least one of the terms has to equal 0.

$x+5=0 \\ x-3=0 \\ \\ x=-5,3$

So the x-intercepts are $(-5,0)$ and $(3,0)$ .

8 0

3 years ago

Four points from a line are shown in the table below.

Dvinal [7]

Answer:

Correct choice is D. $y=-x+3$ .

Step-by-step explanation:

pick any two points from the table say (0,3) and (1,2)

Now we we can use both points to find the equation of line.

slope $m=\frac{y_2-y_1}{x_2-x_1}=\frac{2-3}{1-0}=\frac{-1}{1}=-1$

now plug slope m=-1 and any point say (0,3) into point slope formula

$y-y_1=m\left(x-x_1\right)$

$y-3=-1\left(x-0\right)$

$y-3=-1\left(x\right)$

$y-3=-x$

$y=-x+3$

Hence correct choice is D. $y=-x+3$ .

8 0

4 years ago