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2 years ago

Eliza is at least twice as old as her friend's younger sister, Wendy.

Mathematics

1 answer:

satela [25.4K]2 years ago

3 0

Answer:

e ≥ 2w

Step-by-step explanation:

To make this easier, let us consider the case of Eliza being exactly twice as old as wendy

that would mean that twice the age of Wendy is the age of Eliza

e = 2w

but since she is AT LEAST twice as old as her, the age of eliza can be greater than twice of wendy and it might be equal to twice the age of Wendy

Hence, the symbol '=' will be replaced by '≥'

Hence, the correct relation is

e ≥ 2w

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A manufacturing company regularly conducts quality control checks at specified periods on the products it manufactures. Historic

Rina8888 [55]

Answer:

The probability that none of the LED light bulbs are defective is 0.7374.

Step-by-step explanation:

The complete question is:

What is the probability that none of the LED light bulbs are defective?

Solution:

Let the random variable X represent the number of defective LED light bulbs.

The probability of a LED light bulb being defective is, P (X) = p = 0.03.

A random sample of n = 10 LED light bulbs is selected.

The event of a specific LED light bulb being defective is independent of the other bulbs.

The random variable X thus follows a Binomial distribution with parameters n = 10 and p = 0.03.

The probability mass function of X is:

$P(X=x)={10\choose x}(0.03)^{x}(1-0.03)^{10-x};\ x=0,1,2,3...$

Compute the probability that none of the LED light bulbs are defective as follows:

$P(X=0)={10\choose 0}(0.03)^{0}(1-0.03)^{10-0}$

$=1\times 1\times 0.737424\\=0.737424\\\approx 0.7374$

Thus, the probability that none of the LED light bulbs are defective is 0.7374.

6 0

2 years ago

Can someone help me with this?? explain if you would like

vova2212 [387]

Answer:

answer is 38 yd

Step-by-step explanation:

area of square =1444 yd^2

z^2=1444 yd^2

z= $\sqrt{1444$ yd^2

z=38 yd

Hope this helps u!!

5 0

2 years ago

A. 112 cm2 B. 64 cm2 C. 48 cm2 D. 56 cm2

goldfiish [28.3K]

The area of a triangle is taken by multiplying the length of the base times the height then dividing by 2.
l = 14cm
h = 8cm
A = $\frac{l * h}{2}$
A = $\frac{14 * 8}{2}$
A = $\frac{112}{2}$
A = 56 $cm^{2}$

6 0

2 years ago

How do u find tip amount from a bill of $67.51 and a tip of 20%

Troyanec [42]

Answer:

$13.50 is the tip

$81.01 is total bill

Step-by-step explanation:

total of bill multiplied by 20%

$67.51 x .20 = $13.50

For total bill amount:

$67.51 + $13.50 = $81.01

4 0

2 years ago

Consider the following set of equations: Equation R: −3y = −3x − 9 Equation S: y = x + 3 Which of the following best describes t

gregori [183]

Answer:

infinite solutions.

Step-by-step explanation:

they both represent the same equation.

There are infinite points on a st. line.

7 0

2 years ago