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Morgarella [4.7K]
3 years ago
10

What number should be added to both sides of the equation to complete the square x2 + 8x = 17 (x2 is an exponent so x squared by

the way )
Mathematics
1 answer:
Arte-miy333 [17]3 years ago
7 0
The answer I believe would be 2
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Name two properties used to evaluate 7 ∙ 1 – 4
svlad2 [7]

Answer:

Multiplication property of equality and subtraction property of equality

Step-by-step explanation:

Just using the signs to know what you can do to get your answer (also PEMDAS)

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William has been contracted to paint a school classroom. The classroom is 20 m long, 15 m wide and 5 m high. There are four wind
valina [46]

Answer:

Step-by-step explanation:

l -> length

b -> width

h -> height

Find the area of four walls and ceiling. then subtract the area of four windows and a door form that area.

Area of four walls + <u>ceiling</u> = 2( lh + bh) +<u>lb</u>

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= 2( 100 + 75) + 300

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= 650 sq m

Area of window = 2 *3 = 6 sq.m

Area of four windows = 4*6 = 24 sq.m

Area of door = 2 * 1 =  2 sq.m

Area of four walls excluding 4 windows and door = 650 - 24 - 2 = 624 sq.m

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3 0
3 years ago
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Need help with two questions please
balandron [24]

Answer:

v is negative for every x, meaning the domain is all values in R, whatever goes under the squared sign will come out as positive and the left out -ve sign will make V negative for all x in R

range of f(x) is -inf to +inf

Step-by-step explanation:

the cubic power doesnt affect the sign

3 0
3 years ago
Please help and hurry please
kakasveta [241]

Answer:

x=7.48

Step-by-step explanation:

13^2+x^2=15^2

169+x^2=225

x^2=56

x=7.48

6 0
2 years ago
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use the slope formula to calculate the slope of the line that contains the two points (-4,0) and (5,2)​
Solnce55 [7]

Answer:

\frac{2}{9} x

Step-by-step explanation:

To find slope using two points you need to find the difference in x and y. You use \frac{y_{2}-y_{1}}{x_{2}-x_{1} }

So, 2-0=2 and 5-(-4)=9. Therefore the slope is 2/9x

3 0
3 years ago
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