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3 years ago

PLEASE HELP! I need this fast!

Mathematics

2 answers:

Valentin [98]3 years ago

8 0

Answer:

True.

Step-by-step explanation:

The quadratic equation $y=2(x+3)^2-1$ , is in fact written in vertex form.

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

$a=amplitude$

$h=horizontal shift$

$k=vertical shift$

jeka943 years ago

6 0

Answer:

Yes

Step-by-step explanation:

vertex form is y=a(x-h)^2+k

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Sierra is selling bracelets to raise money for the Language Club at school. Each bracelet with yellow beads sells for $5. Each b

matrenka [14]

Answer:

Correct answer is:

$5y+6r=660\\y=2r+8$

Step-by-step explanation:

Given that Number of bracelets with yellow beads is represented by $y$

Each bracelet with yellow beads is sold for $5.

Total money raised by bracelets with yellow beads = Number of bracelets sold $\times$ Money raised by sale of one such bracelet = $5y$

Also Given that Number of bracelets with Orange beads is represented by $r$

Each bracelet with orange beads is sold for $6.

Total money raised by bracelets with orange beads = Number of bracelets sold $\times$ Money raised by sale of one such bracelet = $6r$

Given that total money raised by sale of both type of bracelets is $660.

so, the first equation becomes:

$5y+6r=660 ....... (1)$

It is also given that "<em>The number of bracelets with yellow beads that Sierra sold is 8 more than twice the number of bracelets with orange beads</em>"

$\Rightarrow r =2r+8 ...... (2)$

So, by equation (1) and (2), the system of equations is:

$5y+6r=660\\y=2r+8$

5 0

3 years ago

20 POINTS

Brut [27]

Answer:

Substitute (x+4)2−16 ( x + 4 ) 2 - 16 for x2+8x x 2 + 8 x in the equation x2+y2+8x−6y=24 x 2 + y 2 + 8 x - 6 y = 24 . (x+4)2−16+y2−6y=24 ( x + 4 ) 2 - 16 + y 2 ...

Step-by-step explanation:

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3 years ago

Luke wants to reduce the area of his rectangular garden by one-fourth. The expression 1/4 lw can be used to represent this chang

Leya [2.2K]

Answer:

lw/4

Step-by-step explanation:

Area of a rectangle = length × width

= l × w

Area of a rectangle = let

reduce the area of his rectangular garden by one-fourth

= 1/4 * lw

= 1/4lw

What is another way to write this expression?

Another way to write the expression is

= 1/4 * lw

= lw / 4

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=%7B3%7D%5E%7B5%7D%20%20%5Ctimes%20%20%7B3%7D%5E%7B7%7D%20%20%5Ctimes%20%20%7B3%7D%5E%7Bx%7D%20

Irina-Kira [14]

Answer:

The answer is x= -10

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3 years ago

I NEED THIS BADLY <br> WILL MARK BRAINLYIST

stiks02 [169]

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2 years ago