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Advocard [28]
3 years ago
12

The weight of softballs is uniformly distributed over the interval of 8 to 12 ounces, inclusively. what is the probability that

a randomly selected softball will weigh between 13 and 15 ounces?
Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
7 0
We wil use the density function of the uniform distribution:
f(x)=\dfrac{1}{b-a}\int_a^xdy
Using the given values: a=8,b=12, w get:
P(13\leq X\leq15)=\dfrac{1}{12-8}\int_{13}^{15}dy\\
=\dfrac{1}{12-8}*0=0
the probability is zero then.
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Please I really need help (50 points)
Lady_Fox [76]

Answer:

PROOF FOR THE "PROVE" SECTION:

As linear pairs, angle 2 and 3 are supplementary to each other. Angle 1 is equal to angle 2, as they are both same-side interior angles. Therefore, angle 1 and angle 3 are also supplementary.

Filling in the missing blanks:

S1. Angle 1, Angle 2, Angle 3

S2. Angle 1 and Angle 2

R3. Congruent (___)

R5. supplementary angles

S7. Angle 1 = Angle 2, so Angle 1 can be substitued in for Angle 2 in any equation, and Angle 2 can be substitued for Angle 1 in any equation as well (they can replace each other, like x=y & y=x or a=b & b=a)

Hope this helped! Have a great day (pls mark brainliest)!!

4 0
3 years ago
Which number line represents the solutions to [x - 5] = 1?
Strike441 [17]

Answer:

there should only be two points at 6 and 4

Step-by-step explanation:

[x-5]=1

x-5=+ 1 or -1

x-5= 1

x-5= -1

x=6 or 4

7 0
3 years ago
When a number is decreased by 7.5%, the result is 61. What is the original number to the nearest tenth?
asambeis [7]

Answer: It's 65.9

Step-by-step explanation:

<h3>decreased by 7.5%</h3>

<h3>means 100% - 7.5% = 92.5%</h3>

<h3>92.5% * x = 61</h3>

<h3>x= 61 / 92.5%</h3>

<h3>x = 65.9459</h3>

<h3>to the nearest tenth :</h3>

<h3>original number is 65.9</h3><h3>Hope this helps have a awesome day/night❤️✨</h3>
4 0
3 years ago
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liberstina [14]

Answer:

The 3rd choice: 2/3 tank - 1/6 tank = 1/2 tank

Step-by-step explanation:

I assume those numbers are fractions.

The gas tank of Wendy’s car was 2/3 full. She used 1/6 of a tank of gas when driving to and from work. Which equation shows how full the gas tank is now?

We subtract 1/6 from 2/3. We need to use the common denominator 6.

2/3 - 1/6 = 4/6 - 1/6 = 3/6

Now we reduce 3/6.

2/3 - 1/6 = 1/2

Answer: 2/3 tank - 1/6 tank = 1/2 tank

7 0
3 years ago
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sesenic [268]

Answer:

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