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Oxana [17]
3 years ago
13

Is this 2/9 I need help

Mathematics
1 answer:
gtnhenbr [62]3 years ago
5 0

Answer:

Yes, it is 2/9.

Step-by-step explanation:

You want to draw a red ball first, and then a blue ball.

This means the order would be RB.

Count the amount of options that are "RB" and you get 2.

There are 9 options in total.

Probability: \frac{2}{9}

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Lin's bottle holds 3 1/4 cups of water. She drank 1 cup of water. What fraction of the water in the bottle did she drink?
DanielleElmas [232]

Answer:

30.76923077 or (approx: 30.77)

Step-by-step explanation:

-has 3 1/4 cups

-drinks 1 cup

(3 1/4-1=2 1/4)

3 1/4=100%               (3 1/4 divided by 1=3.25)

    1  =x%                    (100 divided by 3.25)

Approx 30.77%

8 0
3 years ago
Solve each quadratic equation. Show your work. 14. (2x – 1)(x + 7) = 0 15. x2 + 3x = 10 16. 4x2 = 100
andreyandreev [35.5K]
14.  (2x - 1)(x + 7) = 0

Using the zero factor property, we know that either the first or second terms (or both) must be equal to 0 if their product is 0.  We can set each term equal to 0 to find the solutions:

2x - 1 = 0
2x = 1
x = 1/2

x + 7 = 0
x = -7

15.  x^{2} +3x=10

To solve this equation, you first need to set it equal to 0:

x^{2} +3x=10 \\ x^{2} +3x-10 = 0

Next, it can be factored:

x^{2} +3x-10 = 0 \\ (x+5)(x-2)=0

Finally, we can solve just like we did above:

x + 5 = 0
x = -5

x - 2 = 0
x = 2

16.  4x^2=100

First, you can simplify by dividing each side by 4:

4x^2=100 \\ x^2=25

Now, set the equation equal to 0:

x^2=25 \\ x^2-25=0

Next, factor:

x^2-25=0 \\ (x+5)(x-5)=0

Finally, find the solutions:

x + 5 = 0
x = -5

x - 5 = 0
x = 5
6 0
3 years ago
3|2z-4|-6&gt;12<br> Solve for z
mina [271]

Answer:

312z-41-6>12

subtract -41-6

312z-47>12

add it on both sides

312z-47>12

      +47   +47

312z>59

divide 312 to both sides

z<0.189

3 0
3 years ago
Suppose that diameters of a new species of apple have a bell-shaped distribution with a mean of 7.25cm and a standard deviation
Ulleksa [173]

Answer:

95%

Step-by-step explanation:

5 0
3 years ago
Larry bought 4 lemonades for his friends.Each lemonades cost $1.28.Complete the table to show the prices of 2,3,and 4 lemonades
pogonyaev
2 drinks-$2.56
3 drinks-$3.84
4 drinks-$5.12
hope that this helps
4 0
3 years ago
Read 2 more answers
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