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3 years ago

4x + 3 2x Which expression represents the perimeter of the rectangle above?

Mathematics

2 answers:

alekssr [168]3 years ago

8 0

$\text{Perimeter}=2\cdot(4\text{x}+3)+2\cdot2\text{x}=\\\\=8\text{x}+6+4\text{x}=8\text{x}+4\text{x}+6=\boxed{12\text{x}+6}$

vlabodo [156]3 years ago

3 0

Answer:

Step-by-step explanation:

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nata0808 [166]

Answer:

What is P(A), the probability that the first student is a girl? (3/4)

What is P(A), the probability that the first student is a girl? (3/4)What is P(B), the probability that the second student is a girl? (3/4)

What is P(A), the probability that the first student is a girl? (3/4)What is P(B), the probability that the second student is a girl? (3/4)What is P(A and B), the probability that the first student is a girl and the second student is a girl? (1/2)

The probability that the first student is a girl is (3/4), likewise for the 2nd 3rd and 4th it's still (3/4). The order you pick them doesn't matter.

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4 years ago

Nathan paid 55 for 5 cans of juice if he were to buy three cans at the same price how much would he have to pay

tresset_1 [31]

He would pay $33 dollars

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4 years ago

3(6+3(8*5-17) please help me

Finger [1]

Equation:

3(6 + 3) * (8 * 5 - 17)

Follow the rules of PEMDAS and solve:

(18 + 9) * (40 -17)

(27) * (23) = <u>621</u>

7 0

4 years ago

Read 2 more answers

The formula for the circumference of a circle is C = 2r, where r is the radius and C is the circumference. The equation solved f

Marat540 [252]

Answer:

It should be 8

Step-by-step explanation:

C = 2r

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3 years ago

There are (n r) different linear arrangements of n balls of which r are black and n-r are white. give a combinatorial explanatio

Vanyuwa [196]

Answer:

$\frac{n!}{r!(n-r)!}$

Step-by-step explanation:

Combinatorial explanation:

The n balls have to be arranged in n positions and the only distinction is where are the black and where white balls are.

We can choose the position of black balls in $\binom{n}{r}$ ways, therefore, white ones are on the remaining positions.

Using binomial we can have explanation written below:

The balls can be arranged in n! possible permutations.

To be precise one particular arrangement includes $r!(n-r)!$ permutations. Since r black balls can be permuted in r! ways and white balls in (n-r)! different orders.

So basically it yields,

$r! \times (n-r)!$ permutations.

So the actual amount is,

$\frac{r!}{(n-r)!}= \binom{n}{r}=\binom{n}{n-r}$

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4 years ago