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3 years ago

11

Help me please and its more than One.

1 answer:

8_murik_8 [283]3 years ago

5 0

I would choose B
w*(5*4)

because this choice multiplies the pages times the days and then multiplies the week

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Write the formula for the parabola that has x- intercepts (3,0) and (8,0), and y- intercept (0,−2)

alexira [117]

Answer: $x^2-5x=-12(y+2)$

Step-by-step explanation:

Given

Parabola has x-intercept has $(3,0)$ and $(8,0)$

and Y-intercept as $(0,-2)$

Now the general equation of parabola is

$y=ax^2+bx+c\quad \ldots(i)$

Substitute $(0,-2)$ in $(i)$ we get

$-2=c$

Now substitute $(3,0)$ in equation $(i)$

$0=a(3)^2+3b-2\quad \ldots(ii)$

Now substitute $(8,0)$ in equation $(i)$

$0=a(8)^2+8b-2\quad \ldots(iii)$

Solving $(ii)$ and $(iii)$ we get

$a=\frac{-1}{12}\ \text{and}\ b=\frac{5}{12}$

therefore

$y=\frac{-x^2}{12}+\frac{5x}{12}-2$

$12y=-x^2+5x-24$

5 0

3 years ago

Please help me in math

Marta_Voda [28]

When we have negative exponents, we can move the term with the exponent to the bottom of the fraction. This is also known as multiplying by the reciprocal (and changing the negative exponent to be positive!).

The reciprocal of z^-3 would be 1 / z^3.

Hope this helps!! :)

3 0

2 years ago

What property does the number sentence show? 8+0=8

zubka84 [21]

Identity Property of Zero!
I hope this helps xD

7 0

2 years ago

Read 2 more answers

kvasek [131]

B.) 8(x+4) is the best choice

6 0

2 years ago

Read 2 more answers

1. The sum of three times k and eight is eleven

ludmilkaskok [199]

Answer:

k=1

Step-by-step explanation:

$3k + 8 = 11\\$

Subtract 8 from both sides

$3k = 3$

Divide

$\frac{3k}{3} = \frac{3}{3}$

Simplify

$k =1$

4 0

2 years ago

Read 2 more answers