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3 years ago

Which multiplication expression can be used to check this division problem:

Mathematics

2 answers:

borishaifa [10]3 years ago

6 0

Answer:

° 3/2 × 4/15

Step-by-step explanation:

for checking a division problem use the product and one of the fractions to multiply. if the answer matches the other fraction then your division is correct.

SashulF [63]3 years ago

4 0

2/5 x 4/15 = 8/75 or 0.106
3/2 x 4/15 = 2/5 or 0.4
3/2 x 15/4 = 45/8 or 5 5/8, 5.625
5/2 x 15/4 = 75/8 or 9 3/8, 9.375

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What is 9 superscript 7 written in expanded form? 9 + 9 + 9 + 9 + 9 + 9 + 9 9 times 9 times 9 times 9 times 9 times 9 times 9 7

GrogVix [38]

Answer:

4,782,969

Step-by-step explanation:

9^7

Written in expanded form = 9 times 9 times 9 times 9 times 9 times 9 times 9

= 9 × 9 × 9 × 9 × 9 × 9 × 9

= 4,782,969

9^7 means multiplying 9 in 7 places

9^7 = 4,782,969

3 0

2 years ago

Read 2 more answers

A wallet is originally $11.00. With a 40% discount, what is the sales price?

Leviafan [203]

Answer:

$6.60

Step-by-step explanation:

11 x .40 = 4.4

11 - 4.4 = 6.6

6 0

3 years ago

Read 2 more answers

Indicate in standard form the equation of the line passing through the given points.

lorasvet [3.4K]

Answer:

y = 6

Step-by-step explanation:

Let the y-intercept form of the equation of the line is,

y = mx + b

Here, m = Slope of the line

b = y-intercept

Slope of the line passing through two points $(x_1,y_1)$ and $(x_2,y_2)$ is given by,

m = $\frac{y_2-y_1}{x_2-x_1}$

Slope of the passing through (0, 6) and (5, 6) will be,

m = $\frac{6-6}{0-5}$

m = 0

Equation of the line with m = 0 will be,

y = 0 + b

y = b

Since, line passes through (0, 6),

By substituting the values in the equation,

b = 6

Therefore, standard equation of the line passing through (0, 6) and (5, 6) will be,

y = 6

6 0

2 years ago

For each of the following binomial random variables, specify n and p. (a) A fair die is rolled 50 times. X = number of times a 5

Keith_Richards [23]

Answer:

a) $n = 50, p = \frac{1}{6}$

b) $n = 16, p = \frac{1}{100}$

c) $n = 26, p = 0.25, \mu = 6.5$

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinatios of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And $p$ is the probability of X happening.

(a) A fair die is rolled 50 times. X = number of times a 5 is rolled

The die is rolled 50 times, so $n = 50$ .

Each roll can have 6 outcomes. So the probability that 5 is rolled is $p = \frac{1}{6}$

(b) A company puts a game card in each box of cereal and 1/100 of them are winners. You buy sixteen boxes of cereal, and X = number of times you win.

You buy 16 boxes of cereal, so $n = 16$ .