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2 years ago

Complete the square to rewrite y = x– 5x + 7 in graphing form and state the vertex.

Mathematics

1 answer:

Sati [7]2 years ago

3 0

Answer:

Slope = -4

Y-intercept= (0,7)

Step-by-step explanation:

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A number greater than -5 written as a problem

bazaltina [42]

The answer is x > -5

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2 years ago

Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

$q(a) = {a}^{2} + 3a + 4$

Multiply sides by -2 :

$- 2q(a) = - 2( {a}^{2} + 3a + 4)$

$- 2q(a) = - 2 {a}^{2} - 6a - 8$

_________________________________

Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

_________________________________

Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

Thanks for watching buddy good luck.

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3 years ago

A bakery is having a sale on cupcakes. At 11am the bakery has sold 123 cupcakes. By 2pm the bakery has sold 470 cupcakes.

Wittaler [7]

Answer:

The average rate of change is 115 cupcakes per hour approximately

Step-by-step explanation:

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3 years ago

How many pieces ,each of length 3 ¾ m can be cut from a rope of length 30m?

Nadusha1986 [10]

Answer:

Step-by-step explanation:

Divide 30 by 3.75 to get 8.

Hope that this helps!

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3 years ago

I'm really confused, can someone please help me with this problem?

stiv31 [10]

Answer: x = 6.25

5 ÷ 0.8

= 6.25

6 0

3 years ago