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Elanso [62]
3 years ago
13

URGENT PLS HELP! bag contains 25 white marbles and 10 black marbles you pick one marble at random what is the probability that y

ou pick a black marble
Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
8 0

Answer:

The answer is 28.6

Step-by-step explanation:

10/35 you get it in a percentage

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The graph of F(x) can be stretched vertically and flipped over the x axis to produce the graph of G(x) if F(x)=x^2 which of the
ladessa [460]

Answer:

g(x) = -5x²

(option B)

Step-by-step explanation:

we know that our original graph, f(x) = x² is a parabola.

So, we can consider what happens when we adjust the function/equation of a parabola.

when we "vertically stretch" a parabola, we are increasing the value of x.

 think of it this way: the steepness of a slope is rise over run. If we rise ten, and run one, that's going be a lot more steep than if we rise 1, run 1.

Let's say our x = 5

if f(x)=x²

f(5) = 25

> y value / steepness is 25

f(x) = 3x²

f(5) = 75

 > y value / steepness is 75

So, we are looking for an equation with an increase in x present.

When a parabola has been flipped over the x-axis, we know that the original equation now includes a negative

suppose that x = 1

if y = x² ; y = 1² = 1

if y = -(x²) ; y = -(1²) ; y = -1

So, when we set x to be negative, we make our y-values end up as negative also (which makes the graph look as if it has been flipped upside-down)

This means that we are looking for a function with a negative x value.

So, we are looking for a negative x-value that is multiplied by a number >1

The graph that fits our requirements is g(x) = -5x²

hope this helps!!

6 0
2 years ago
Identify which of these designs is most appropriate for the given​ experiment: completely randomized​ design, randomized block​d
sasho [114]

Answer:

Matched pairs design

Step-by-step explanation:

Looking at the options;

-It's not a completely randomized design because a randomized design will assign all individuals to a group which in this case it doesn't.

- It's not a randomized block design because randomized block design will group the subjects in question into 2 or more blocks which have a common characteristic and will then randomly assign subjects in each of the blocks.

-It's a matched pair because every individual/subject undergoes measurements both before and after being treated with the drugs.

Thus, the correct option is matched pairs design.

7 0
3 years ago
Simplify 3(2x + 5) <br> A. 6x + 30 <br> B.6x + 15<br> C. 6x + 5
Nana76 [90]

3(2x/5)  

Final result :

 6x

 ——

 5  

Step by step solution :

Step  1  :

           x

Simplify   —

           5

Equation at the end of step  1  :

          x

 3 • (2 • —)

          5

Step  2  :

Final result :

 6x

 ——

 5

5 0
3 years ago
Read 2 more answers
Find principle amount that will grow to $25,000 if interest is 3.2% compounded monthly for 3 years?
matrenka [14]

Answer:

$260,416

Step-by-step explanation:

$25,000/(0.032*3)= $260,416

8 0
3 years ago
Read 2 more answers
Members of a junior high basketball team want to brag about how tall they are. First, they measured each player’s height in inch
stealth61 [152]

Answer: mean is 66 and the median height is 68.

Step-by-step explanation: uh I dont know what to put here....?

3 0
3 years ago
Read 2 more answers
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