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3 years ago

If you get an area of 45cm^2 then what is the length and width

1 answer:

8 0

assuming that you're referring to the length, width, and area of a rectangle, the length would be 9cm and the width would be 5cm.

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If f(x) = 3x + 7, find:<br> f(-2) = [ ? ]

devlian [24]

Answer:

Step-by-step explanation:

Plug in -2.

f(x) = -6+7

f(x) = 1

3 0

3 years ago

Please help me with this problem

Burka [1]

Answer:

(x+11)(x-11) its a difference of squares formula, when you FOIL it out the positive 11x and negative 11x will cancel out

Step-by-step explanation:

6 0

3 years ago

Write the given expression in terms of i : √-245

tankabanditka [31]

Okay, so first things first:
i = $\sqrt{-1} 
$
That said, no answer that has -245 is correct.

Now we just need to solve $\sqrt{245}$
245/5=5*49
$\sqrt{5} * \sqrt{49} = 7i*\sqrt{5}$
So, that's your answer, option D.

3 0

3 years ago

Noel is playing a game where he draws one playing card each out of two stacks of 5 cards. The table below shows all possible sum

vladimir1956 [14]

Answer: I believe it is 60-10=x because it says she purchased it with 60$ but recieved 10$ in change causing the amount we dont know to be a variable such as "x"

5 0

3 years ago

A die is rolled. What is the probability that the number is a factor of 6 or more than 2? Does this scenario represent mutually

goblinko [34]

Factors of 6 are : 1,2,3 and 6.

Let us find probability of getting the number that is a factor of 6.

$P(\text{ The number is a factor of 6})=\frac{4}{6} =\frac{2}{3}$

Now let us find probability of getting a number more than 2 (3,4,5,6).

$P(\text{ The number is a greater than 2})=\frac{4}{6} =\frac{2}{3}$

We can see that these two events are mutually inclusive events. We can find probability of mutually inclusive events by formula $P(\text{X or Y})=P(X)+P(Y)-P(\text{X and Y})$ .

$P(\text{ The number is a factor of 6 and greater than 2})=\frac{2}{6} =\frac{1}{3}$

Now we will find probability of getting the number is a factor of 6 or more than 2 using above formula.

$P(\text{ The number is a factor of 6 or greater than 2})=\frac{2}{3} +\frac{2}{3}-\frac{1}{3}$

$P(\text{ The number is a factor of 6 or greater than 2})= \frac{4}{3}-\frac{1}{3}=\frac{3}{3}=1$

Therefore, our probability will be 1 and this scenario represents mutually inclusive events.

6 0

3 years ago