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3 years ago

Helpppppp meeeeeeee

Mathematics

1 answer:

nexus9112 [7]3 years ago

4 0

Pretty sure it would be G lol. The number on the bottom is months, so that’s two months. The number on the left is the books read, so that’s 3. She read 3 books in 2 months

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A container contains tiles numbered from 1 through 40. A tile is drawn randomly and replaced. Then a second tile is drawn random

amid [387]

Answer:

The correct answer is $\frac{1}{1600}$ .

Step-by-step explanation:

A container contains tiles numbered from 1 through 40.

Let the experiment be to drawn a tile randomly from the container. The draws are carried on by replacement method. Then a second tile is drawn randomly.

Probability that the first tile is number 7 = $\frac{Possible outcomes}{Total outcomes}$ = $\frac{1}{40}$

Probability that the second tile is number 25= $\frac{Possible outcomes}{Total outcomes}$ = $\frac{1}{40}$

Thus the probability of the first tile is number 7 and the second tile is number 25 is given by $\frac{1}{1600}$ .

7 0

3 years ago

Divide: (5 + 4i) / (-3 – 2i)

Phantasy [73]

Answer:

Step-by-step explanation:

$\frac{5+4i}{-3-2i}\\\\\mathrm{Apply\:complex\:arithmetic\:rule}:\\\\\quad \frac{a+bi}{c+di}\:=\:\frac{\left(c-di\right)\left(a+bi\right)}{\left(c-di\right)\left(c+di\right)}\:=\:\frac{\left(ac+bd\right)+\left(bc-ad\right)i}{c^2+d^2}\\\\a=5,\:b=4,\:c=-3,\:d=-2\\\\=\frac{\left(5\left(-3\right)+4\left(-2\right)\right)+\left(4\left(-3\right)-5\left(-2\right)\right)i}{\left(-3\right)^2+\left(-2\right)^2}\\\\Refine\\=\frac{-23-2i}{13}\\\\$

$\mathrm{Rewrite\:}\frac{-23-2i}{13}\mathrm{\:in\:standard\:complex\:form:\:}-\frac{23}{13}-\frac{2}{13}i\\$

8 0

3 years ago

The amount of the tip each waiter receives after a wedding is inversely proportional to the number of waiters serving the event.

iogann1982 [59]

Answer:

The relationship between n and t is n*t=1200 (option d)

Step-by-step explanation:

Two quantities are inversely proportional if when multiplying (or dividing) one of them by a number, the other is divided (or multiplied) by the same number. That is, two magnitudes are inversely proportional if when one increases, the other decreases in the same proportion.

Given two variables, x and y, with an inversely proportional relationship, the product of both is always constant and equal to the coefficient of proportionality:

x*y=k

where k is the coefficient of proportionality.

This means that knowing the value of the proportionality coefficient and the value of a variable, the value of the other variable can be known through the quotient between the proportionality coefficient and the value of the known variable:

$y=\frac{k}{x}$

The amount of the tip "t" each waiter receives after a wedding is inversely proportional to the number of waiters "n" serving the event. The total amount for tips at a wedding was $1,200.Taking into account the aforementioned definition of inversely proportional quantities, this can be expressed by:

n*t=1200

<u><em>The relationship between n and t is n*t=1200 (option d)</em></u>

6 0

3 years ago

What value of x makes the equation -4x – (-3 − 5x) = -3(2x − 8) true?.

zzz [600]

Answer:

x=3

Step-by-step explanation:

-4x-(-3-5x)=-3(2x-8)

-4x+3+5x=-6x+24

x+3=-6x+24

+6x +6x

7x+3=24

-3 -3

7x=21

/7 /7

x=3

-hope it helps

7 0

3 years ago

1.How much will $5,000 accumulate in 5 years if it earns 6% per annum for the first 3 years and then 8% per annum for the next 2

Pavel [41]

Answer: Amount after 5 years become $5937.60.

Step-by-step explanation:

Since we have given that

Principal amount = $5000

Time period = 5 years

Rate of interest for 3 years = 6%

Rate of interest for 2 years = 8%

so, Amount becomes

$Amount=5000(1+\dfrac{6}{1000})^3(1+\dfrac{8}{100})^2\\\\Amount=5000(1+0.006)^3(1+0.08)^2\\\\Amount=5000(1.006)^3(1.08)^2\\\\Amount=\$5937.60$

Hence, Amount after 5 years become $5937.60.

7 0

3 years ago

Helpppppp meeeeeeee​

Helpppppp meeeeeeee