All categories

3 years ago

This table shows equivalent ratios which ratios are equivalent to the ratios in the table check all that apply ?

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

3 0

20:4 and 40:8 I think

You might be interested in

Put the quadratic into vertex form and state the coordinates of the vertex. y= y= \,\,x^2-6x-3 x 2 −6x−3

enot [183]

Answer:

$y = (x - 3)^2 - 12$

$(3,-12)$

Step-by-step explanation:

Given

$y = x^2 - 6x - 3$

Solving (a): In vertex form

The vertex form of an equation is:

$y = a(x - h)^2 + k$

To do this, we make use of completing the square method.

We have:

$y = x^2 - 6x - 3$

------------------------------------------------------------------

Take the coefficient of x (i.e. -6)

Divide by 2; -6/2 = -3

Square it: (-3)^2 = 9

Add and subtract the result to the equation

------------------------------------------------------------------

$y = x^2 - 6x - 3$

$y = x^2 - 6x + 9 - 9 - 3$

$y = x^2 - 6x + 9 - 12$

Factorize $x^2 - 6x + 9$

$y = x^2 - 3x-3x + 9 - 12$

$y = x(x - 3)-3(x - 3) - 12$

Factor out x - 3

$y = (x - 3)(x - 3) - 12$

Express as squares

$y = (x - 3)^2 - 12$

Hence, the vertex form of $y = x^2 - 6x - 3$ is: $y = (x - 3)^2 - 12$

Solving (b): State the coordinates of the vertex.

In $y = a(x - h)^2 + k$ ; the vertex is: (h,k)

The vertex of $y = (x - 3)^2 - 12$ will be $(3,-12)$

3 0

2 years ago

Sally wants to buy an assortment of candy. She has $7 dollars she can spend in the candy store. The candy store sells chocolate

Tom [10]

Answer:

I found the table by an online search (it is below)

Sally has $7 to spend in candy.

The price of a chocolate bar is $1.50

The price of a lollipop is $0.75

The price of gumballs is $0.25

In the table, we have the following combinations.

a) 3 chocolate bars, 3 lollipops and 4 gumballs, the price is:

3*$1.50 + 3*$0.75 + 4*$0.25 = $7.75 (she can not buy this)

b) 3 chocolate bars and 4 gumballs, the price is:

3*$1.50 + 4*$0.25 = $5.50 (she can buy this)

c) 1 chocolate bar, 5 lollipops and 2 gumballs, the price is:

1*$1.50 + 5*$0.75 + 2*$0.25 = $5.75 (she can buy this)

d) 2 chocolate bars, 2 lollipops and 8 gumballs, the price is:

2*$1.50 + 2*$0.75 + 8*$0.25 = $6.50 (she can buy this)

8 0

3 years ago

Plz help<br><br> Free 100 points

lisabon 2012 [21]

Answer:

Well plz dont delete my question

Step-by-step explanation:

I need points to get mine out

8 0

3 years ago

Read 2 more answers

ANYONE KNOW HOW TO DO THIS IM BEGGING

iren2701 [21]

1 is reflection
Basically u got to look at what happens to the original shape

3 0

3 years ago

How many integers have absolute value equal to 7?

Triss [41]

Only two integers i think, 7 and -7

6 0

3 years ago