3 years ago

Express in completed square form x 2 + 6x + 20

Mathematics

1 answer:

podryga [215]3 years ago

7 0

Answer:

(x + 3)² + 11

Step-by-step explanation:

Given

x² + 6x + 20

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² + 6x

x² + 2(3)x + 9 - 9 + 20

= (x + 3)² + 11

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VLD [36.1K]

Answer:

y = $\frac{1}{5}$ x + 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = $\frac{1}{5}$ , hence

y = $\frac{1}{5}$ x + c ← is the partial equation

To find c substitute (- 10, 6) into the partial equation

6 = - 2 + c ⇒ c = 6 + 2 = 8

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3 years ago

What is the value of x? Show all of your work.Round your answer to the nearest tenth.

Mashutka [201]

Answer:

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Step-by-step explanation:

we know that

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solver for x

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3 years ago

Help me with the question of O.math

Mashutka [201]

Answer:

Step-by-step explanation:

2*1+1+2*2+1+2*3+1+2*4+1=24

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3 years ago

Which of the following is equal to 4 2/3 / 3 1/2?(If you think its the answer I picked in the picture, its not) Thank you so muc

bazaltina [42]

Answer:

Step-by-step explanation:

4 2/3= 12/3+2/3=14/3

3 2/1=7/2 but you have to flip it

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3 years ago

Read 2 more answers

Martene got a small aquarium for her birthday. The aquarium is a right rectangular prism 18.5cm long by 15cm wide. Martene put 3

natita [175]

Equation for this problem: Total 3 cubed / (L x W)

So 18.5cm x 15cm = 277.5 is the product of L and W. Now you need to devide the total by 277.5 which is 14. So the aquarium is 14 cm deep.

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3 years ago