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Alisiya [41]
3 years ago
6

Which of the following are solutions to the equation below?

Mathematics
1 answer:
evablogger [386]3 years ago
6 0

Answer:

x = 5 ± \sqrt{17}

Step-by-step explanation:

Given

x² - 10x + 25 = 17 ← left side is a perfect square, thus

(x - 5)² = 17 ( take the square root of both sides )

x - 5 = ± \sqrt{17} ( add 5 to both sides )

x = 5 ± \sqrt{17}

Thus

x = 5 - \sqrt{17}

x = 5 + \sqrt{17}

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An experimental drug is administered to 80 randomly selected​ individuals, with the number of individuals responding favorably r
Solnce55 [7]

Answer:

Yes, because the experiment satisfies all the criteria for a binomial experiment.

Step-by-step explanation:

A binomial experiment has the following criterias,

1. There must be a fixed number of trials

2. Each trial is independent of the others

3. There must be only two outcomes  ( success and failure )

4. The probability of each outcome is same.

Given,

An experimental drug is administered to 80 randomly selected​ individuals, with the number of individuals responding favorably recorded,

The number of trials = 80 ( fixed )

Each individuals is independent,

Total outcomes = 2 ( yes or no ),

Also, the probability of each individual is same,

Hence, the given probability experiment represent a binomial​ experiment.

3 0
2 years ago
Jonah drew two squares with the same dimensions. He then added 2 inches to the length of one square to make it a rectangle. He a
nydimaria [60]

Answer:

Perimeter of rectangle 1=4x+4

Perimeter of rectangle 2=4x+4

Step-by-step explanation:

Two squares with the same dimension

Square 1: let length=x

Square 2: let length=x

Since they have same dimensions

He added two inches to the length of square 1 to make it a rectangle

Rectangle 1: width=x, length=x+2

Perimeter=2(l+w)

=2{(x+2)+x}

=2(x+2+x)

=2(2x+2)

=4x+4

He added two inches to the width of square 2 to make it a rectangle

Rectangle 2: length=x, width=x+2

Perimeter=2(l+w)

=2{(x+(x+2)}

=2(x+x+2)

=2(2x+2)

=4x+4

The two rectangles have equal perimeter

3 0
3 years ago
PLEASE HELP ME WITH:
True [87]
B.  If square-foot is on the x-axis then we can substitute for x in the equation and solve, and when we do, we get 2473.302 which is is B when rounded. 
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3 years ago
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How to write 27h/3h in standard form
ICE Princess25 [194]
27h / 3h = (9 x3h) / (1x3h) = 9
6 0
3 years ago
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Find the value of x.<br> 7<br> Х<br> 3<br> Z<br> x= [?]<br> V<br> Give your answer in simplest form.
mixas84 [53]

Answer:

21

Step-by-step explanation:

y^2=7*3\\y^2=21\\y^2=\sqrt{21}

4 0
2 years ago
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