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AysviL [449]
3 years ago
13

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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Write the equation of a line in slope intercept form that has a slope of 1/5 and contains (-10,6)
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

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

5 0
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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8 0
3 years ago
Help me with the question of O.math​
Mashutka [201]

Answer:

24

Step-by-step explanation:

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

6 0
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:

b

Step-by-step explanation:

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

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so you end up with 14/3*2/7

5 0
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.

7 0
3 years ago
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