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3 years ago

5

A store sells a box of highlighters that contains 40% yellow, 30% blue, 20% pink, and 10% green highlighter. What is the probabi

lity of randomly picking first 1 blue and then 1 pink highlighter from the box if the first highlighter is replaced?

1 answer:

marysya [2.9K]3 years ago

7 0

Yes I can do it tomorrow morning

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I dont understand it :/

photoshop1234 [79]

Step-by-step explanation:

It's telling you to plug in the numbers inside the parenthesis as x

Example: F(-1)= 2(-1)^3 -3(-1)^2 +7

4 0

4 years ago

Q: In an examination 14% of the students failed and 559 students passed. Find

topjm [15]

100% - 14% = 86%
86% of what gives you 559
559 * 100 = 55,900/86 = 650
650 students in total
650 - 559 = 91
Solution: 91 students failed

7 0

3 years ago

Simplify:<br> 2/3 divided by 3 3/4

Nat2105 [25]

Answer:

$\frac{8}{45}$

Step-by-step explanation:

convert mixed number to improper fractions

3 $\frac{3}{4}$ = $\frac{15}{4}$

$\frac{\frac{2}{3} }{\frac{15}{4} }$

apply the fraction rule:

$\frac{2 * 4}{3 * 15}$

multiply the numbers

$\frac{8}{45}$

3 0

1 year ago

vichka [17]

Answer:

Her daughters age: 1/2x

Step-by-step explanation:

Let's say Rani's present age is x. Her age is twice the age of her daughter.

So if Rani's age is 20, her daughters age would be 10, because Rani is twice the age of 10; so 10 times 2 would be 20.

1/2(20)=daughter's age

so if you substitute x into 20 because we don't actually know Rani's age, it would be 1/2(x)=daughter's age.

hope this helped :-) <3

3 0

3 years ago

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Step2247 [10]

Answer:

$A = 297\pi$

Step-by-step explanation:

To solve this problem we need to be familiar with the formula for the surface area of a cone:

$A = \pi r(r + \sqrt{h^2+r^2})$

We are given the length of a side and the diameter, to calculate the radius divide the diameter in half:

$r = \frac{d}{2}\\r = \frac{18}{2}\\r = 9 cm$

To calculate the height of the cone, we must use the Pythagorean Theorem:

$C^2 = A^2 + B^2$

We can treat the side length as the hypotenuse $C$ , the radius as the base $A$ , and solve for height $B$ . Set the expression up like this:

$C^2 = A^2 + B^2\\24^2 = 9^2 + B^2\\B^2 = 24^2 - 9^2\\B = \sqrt{24^2 - 9^2}\\B = \sqrt{576 - 81}\\B = \sqrt{495}\\B \approx 22.25$

Now we can plug into our original formula:

$A = \pi r(r + \sqrt{h^2+r^2})\\A = \pi 9(9+\sqrt{\sqrt{495}^2+9^2}\\A = \pi 9(9+\sqrt{495 + 81}\\A = \pi 9(9+\sqrt{576})\\A = \pi 9(9 + 24)\\A = \pi 9(33)\\A = 297\pi$

5 0

2 years ago