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3 years ago

Rewrite y=x^2+6x+2 in vertex form

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

Answer:(x+3) 2−7

Step-by-step explanation:

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Using substitution, what is the first step to solve: x=6y+3 and x+2y=5.

Sedbober [7]

Answer:

x= 9/2 y=1,4

Step-by-step explanation:

Hope this helped you! :)

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3 years ago

Read 2 more answers

Two measures of two angles of a triangle are 68° and 70°. Explain how to find the measure of the third angle.

gogolik [260]

Answer:

42*

Step-by-step explanation:

Each triangle's angles in sum give 180 degrees. From here we add 68 and 70 to get 138, then subtract 138 from 180 to get 42, and that would be the third angle.

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2 years ago

In 2001, gold was priced at (0.5x + 300) dollars per ounce. Its price tripled in 2008 and then doubled in 2011. In 2016, its pri

zloy xaker [14]

Given:

Price of gold in 2001 = (0.5x+300)

Its price tripled in 2008 and then doubled in 2011. In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

To find:

An expression for the price of gold per ounce in 2016.

Solution:

We have,

Price of gold in 2001 $= (0.5x+300)$

Its price tripled in 2008.

Price of gold in 2008 $= 3(0.5x+300)$

Then doubled in 2011.

Price of gold in 2011 $= 2\times 3(0.5x+300)$

In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

Price of gold in 2016 $=\dfrac{2}{3}\times 2\times 3(0.5x+300)$

$=2\times 2(0.5x+300)$

$=4(0.5x+300)$

$=4(0.5x)+4(300)$

$=2x+1200$

Therefore, the required expression for the price of gold per ounce is (2x+1200).

8 0

3 years ago

A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips etc.). No car

Tju [1.3M]

Answer:

The expected number of appearance defects in a new car is 0.64.

Step-by-step explanation:

To find the expected number of appearance defects in a new car, we multiply each outcome by its probability.

We have that:

0.61 probability of 0 defects

0.21 probability of 1 defect

0.11 probability of 2 defects

0.07 probability of 3 defects

0.61*0 + 0.21*1 + 0.11*2 + 0.07*3 = 0.64

The expected number of appearance defects in a new car is 0.64.

8 0

3 years ago

What is the same between a ninety degree angle and a thirty degree angle?

Trava [24]

Answer:

Step-by-step explanation:

8 0

3 years ago

Rewrite y=x^2+6x+2 in vertex form​

Rewrite y=x^2+6x+2 in vertex form