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2 years ago

Name all sets of numbers to which each real number belongs -(square root)20

Mathematics

1 answer:

Stels [109]2 years ago

3 0

It is a real number and an irrational number

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A box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted. A pair of contact lenses is drawn at random from th

tia_tia [17]

Answer:

$\dfrac{2}{3}.$

Step-by-step explanation:

It is given that a box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted.

1 dozen = 12 units

Total pairs of contact lenses $=2\times 12 = 24$

Tinted pairs of contact lenses = 8

Pairs of contact lenses not tinted = 24 - 8 = 16

If a pair of contact lenses is drawn at random from the box, then we need to find the probability that it is not tinted.

$P(\text{Not tinted})=\dfrac{\text{Pairs of contact lenses not tinted}}{\text{Total pairs of contact lenses}}$

$P(\text{Not tinted})=\dfrac{16}{24}$

$P(\text{Not tinted})=\dfrac{2}{3}$

Therefore, the required probability is $\dfrac{2}{3}.$

4 0

3 years ago

How many rectangles can you make out of 18 cubes?

-Dominant- [34]

1*1*18
1*2*9
1*3*6
2*3*3

4 0

3 years ago

Read 2 more answers

What is 92/93 in the lowest terms

topjm [15]

since 92 is not divisible into 93 by a whole number ratio, 92/93 is already in lowest terms

4 0

2 years ago

Question 9 (7 points) Adam borrows $6000 for two years at an 8% annual interest rate, what is his monthly payment? A. $250 D. $5

Oksana_A [137]

Answer:

B. $271

Step-by-step explanation:

Given,

Present value of the loan, PV = $ 6000,

Annual rate of interest = 8 % = 0.08,

So, the monthly rate of interest, r = $\frac{0.08}{12}$ ,

Also, time = 2 years,

So, the total number of months, n = 24,

Hence, the monthly payment would be,

$A=\frac{PV(r)}{1-(1+r)^{-n}}$

$=\frac{6000(\frac{0.08}{12})}{1-(1+\frac{0.08}{12})^{-24}}$

$=\$271.363748737$

$\approx \$271$

Option B is correct.

6 0

3 years ago

Select the property that allows the left member of the equation to be changed to the right member.

Olenka [21]

Commutative - addition.

You're switching a and b to get the same answer. It works with Multiplication too, as you can tell!

8 0

3 years ago

Read 2 more answers