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WARRIOR [948]
3 years ago
10

A, B, and C are polynomials, where:

Mathematics
1 answer:
viktelen [127]3 years ago
7 0

Answer:

2x square -25x + 7

Step-by-step explanation:

a square - (b+c)

(3x-4)square - {(x+7)+(x square+2)}

3x square-2.3x.4+4 square - (x+7+x square+2)

3x square - 24x + 16 -x - 7 - x square - 2

3x square - x square -24x - x + 16-7-2

2x square-25x+7

or,

x(2x - 25)+7

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Humood's house is (-5,7)
grin007 [14]

The distance from Humood's house to the school is 500m

<h3>How to determine the distance from Humood's house to the school?</h3>

The given parameters are:

Humood's house is (-5,7)

The school is (3,1)

The distance between both points is calculated using

d = \sqrt{(x_2- x_1)^2 + (y_2 - y_1)^2

Substitute the known values in the above equation

d = \sqrt{(-5 - 3)^2 + (7 - 1)^2

Evaluate

d = 10

Each unit in the graph is 50m.

So, we have

Distance =10 * 50m

Evaluate the product

Distance = 500m

Hence, the distance from Humood's house to the school is 500m

Read more about distance at

brainly.com/question/1872885

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2 years ago
How do you subtract -2 from 3
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3 years ago
What's the square root of 2​
Sophie [7]

Answer:

The square root of 2 is 1.41421

4 0
3 years ago
Read 2 more answers
In a science fair​ project, Emily conducted an experiment in which she tested professional touch therapists to see if they could
saul85 [17]

Answer:

a 0.5

b 0.4831

c 0.4354 < P < 0.53008

Step-by-step explanation:

Given that :

Probability (P) of a head or a tail when a coin is being tossed or flipped = 1/2 = 0.5

Sample size (n) = 296

Selected sample (X) = 143

a) Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses?

The  proportion of correct responses that would be expected if the touch therapists made random guesses is 0.5

b) Using Emily's sample results, what is the best point estimate of the therapists' success rate?

Point estimate (p') = \frac{X}{n}

= (p') = \frac{143}{296}

= 0.4831

c) Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists.

The Z_c for 90% is 1.645

Using the formula P" -E < P < P" + E

where E = margin of error :  Z_c * \sqrt{\frac{P(1-P)}{n} }

=1.645 * \sqrt{\frac{0.4831(0.5169)}{296} }

=1.645 * \sqrt{\frac{0.2497}{296} }

=1.645*0.029

= 0.0477

∴ P" -E < P < P" + E

= 0.4831 - 0.0477 < P < 0.4831 + 0.0477

= 0.4354 < P < 0.53008

8 0
4 years ago
Which of the following inequalities is true when x = 2?
Tom [10]

the option D.

x {}^{4}  < 3 {x}^{3}

4 0
3 years ago
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