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3 years ago

Which of the following accurately illustrates the verbal phrase: Negative seventeen is eight less than a number?

Mathematics

1 answer:

Mazyrski [523]3 years ago

8 0

A. -17=8-n
because The word is is the equal sign and eight less is 8 minus an number

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In the United States, 40% of the population have brown eyes (based on data from Dr. P. Sorita Soni at Indiana University). If 14

Sav [38]

Answer:

0.0006087 (4 sf)

Step-by-step explanation:

Binomial distribution: X ~ B(n, p)

where n is the number of trials and p is the probability of success

Let the random variable X be the number of people with brown eyes

n = 14

p = 40% = 0.4

Therefore, X ~ B(14, 0.4)

P(X ≥ 12) = 1 - P(X ≤ 11)

= 1 - 0.9993913226...

= 0.000608677...

4 0

2 years ago

Cramer's rule:

Irina18 [472]

Answer:

$a. \quad\dfrac{\left|\begin{array}{cc}148&14\\246&5\end{array}\right|}{\left|\begin{array}{cc}-2&14\\3&5\end{array}\right|}=52$

Step-by-step explanation:

To find the value of x, Cramer's rule says you replace the x-coefficients with the equation constants to form the matrix whose determinant is the numerator of the fraction. The denominator is the determinant of the matrix of coefficients. The equation constants are 148 and 246, so you expect to find those in the first column of the numerator (answer choices A and C).

$\dfrac{\left|\begin{array}{cc}148&14\\246&5\end{array}\right|}{\left|\begin{array}{cc}-2&14\\3&5\end{array}\right|}=\dfrac{-2704}{-52}=52$

The calculation is carried out correctly only in answer choice A.

5 0

3 years ago

If 1+4=5 and 2+5=12 and 3+6=21what does 8+11=

creativ13 [48]

12-5=7
21-12=9
x-21=11
21+11=32
x=32

4 0

3 years ago

8. Trish made a few pans of brownies to sell.

abruzzese [7]

Answer:

Trish made 2 pans of brownies

Step-by-step explanation:

So essentially 84/12 is 7 pans if Rachel made 5 pans and we know that using subtraction we can easily solve this by subtracting 7 and 5

3 0

4 years ago

Calculate balloon volume for each balloon at maximum inflation from the circumference data. (You will have to assume that the ba

Oduvanchick [21]

Answer:

r₁ = 3.583cm

V₁= 192.55cm³

r₂= 5.176cm

V₂ = 580.283cm³

r₃ = 5.255cm

V₃ = 607.479cm³

Step-by-step explanation:

assuming circumferences of each balloons are given as follows C₁ = 22.5cm, C₂ = 32.5cm and C₃ = 33cm

Recall C = 2πr

volume of a sphere is 4/3πr³

5 0

3 years ago