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3 years ago

Area question 50mm x 40mm x 30mm

Mathematics

2 answers:

Mashutka [201]3 years ago

7 0

Answer is b just add all the side to get your answer

-BARSIC- [3]3 years ago

5 0

Answer:

the answer is b

Step-by-step explanation:

so you add them all together to get 1200mm^2 when you square it it becomes smaller get the area of the triangle

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43 and 962 ten thousandths form

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43.0962 is ten thousandths in standard form

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4 years ago

What will be the 7th term in the sequence Enter your answer as a fraction.

viktelen [127]

Answer:

1/32

Step-by-step explanation:

You plug 7 for n and solve in calculator.

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3 years ago

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What is equivlent to 15x-20

Nana76 [90]

5(3x+4y) is equivalent to 15x-20 !

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3 years ago

a card player selects a playing card from a well-shuffled deck of standard playing cards and sees if the card is a red card or n

DIA [1.3K]

It is not binomial random variable , since the number of red cards is unknown in the deck of cards in the starting of experiment.

As given in the question,

Number of cards are unknown.

Number of red cards are unknown in the starting of experiment.

Number of times process done =10

For binomial random variable number of red cards should be known.

Therefore, it is not binomial random variable , since the number of red cards is unknown in the deck of cards in the starting of experiment.

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2 years ago

If r and s are positive integers, is \small \frac{r}{s} an integer? (1) Every factor of s is also a factor of r. (2) Every prime

Yuri [45]

Answer:

If statement(1) holds true, it is correct that $\small \frac{r}{s}$ is an integer.

If statement(2) holds true, it is not necessarily correct that $\small \frac{r}{s}$ is an integer.

Step-by-step explanation:

Given two positive integers $r$ and $s$ .

To check whether $\small \frac{r}{s}$ is an integer:

Condition (1):

Every factor of $s$ is also a factor of $r$ .

$r \geq s$

Let us consider an example:

$s = 5^2 \cdot 2\\r = 5^3 \cdot 2^2$

$\dfrac{r}{s} = \dfrac{5^3\cdot2^2}{5^2\cdot2} = 10$

which is an integer.

Actually, in this situation $s$ is a factor of $r$ .

Condition 2:

Every prime factor of s is also a prime factor of r.

(But the powers of prime factors need not be equal as we are not given the conditions related to powers of prime factors.)

Let

$r = 2^2\cdot 5\\s =2^4\cdot 5$

$\dfrac{r}{s} = \dfrac{2^3\cdot5}{2^4\cdot5} = \dfrac{1}{2}$

which is not an integer.

So, the answer is:

If statement(1) holds true, it is correct that $\small \frac{r}{s}$ is an integer.

If statement(2) holds true, it is not necessarily correct that $\small \frac{r}{s}$ is an integer.

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4 years ago