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luda_lava [24]
4 years ago
5

What is the missing constant term in the perfect square that starts with x2+18xx^2+18xx2+18xx, squared, plus, 18, x ?

Mathematics
2 answers:
katrin2010 [14]4 years ago
4 0

Answer:

81

Step-by-step explanation:

Given the expression: x^2+18x

To make it a perfect square, we follow the following steps.

Divide the coefficient of x by 2

  • Coefficient of x=18, 18/2=9

Square It

  • 9 X 9=81

Add it to the expression

  • x^2+18x+81

This is written as a perfect square as: (x+9)^2

The constant term required therefore is 81.

frozen [14]4 years ago
3 0

Answer:

This is written as a perfect square as (x+9)^2

The constant term required therefore is 81.

Step-by-step explanation:

Given that;

The expression x^2+18x

we follow the following steps.

Divide the coefficient of x by 2

Coefficient of

x = 18, \\\\18 \div2=9

Square 9

9² = 81

The expression goes

x^2+18x+81

This is written as a perfect square as (x+9)^2

The constant term required therefore is 81.

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marlee spins a spinner and rolls 1-6 # cube. the spinner has 5 equal parts # 1-5 . what is the probability she will spin an even
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The events are independant (i.e. what she rolls on the cube has no impact on how the spinner works). The probability of two independant events is given by: 

P_t = P_{cube} \times P_{spin}

For the cube, 1/2 the numbers meet our requitment of being even, so:
P_{cube} = \frac{Desired}{Total} = \frac{even}{total} = \frac{3}{6} =\frac{1}{2}

For the spinner, there are 3 odds out of 5 (1, 3 & 5) so:
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and then:
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4 years ago
How to explain a work problem
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4 0
3 years ago
In 1927, Charles Lindbergh was the first person to fly nonstop across the Atlantic Ocean. Today, Commercial airliners fly from N
mamaluj [8]

Answer:

a. 100 mph

b. 500 mph

Step-by-step explanation:

a.

Let the speed of Lindbergh's plane be x.

Today's planes are 5 times faster, so their speed is 5x.

Today's planes speed is 400 mph faster than Lindbergh's speed.

x + 400 = 5x

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Dennis_Churaev [7]

Answer:

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Step-by-step explanation:

Given :

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The slope - intercept relation :

y = mx + c

m = slope = rate of change

c = intercept

In the scenario given :

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D(h) = 55h - 2000

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