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3 years ago

Enter in the number below that will make the right expression equivalent to the left expression:

Mathematics

1 answer:

Sati [7]3 years ago

7 0

1.9+n
2.10+6
3.2+10
4.17
5.3+3
6.-3+n

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A player on the school baseball team reaches first base 3/10 of the time he is at-bat. Out of 80 times at bat, about how many ti

k0ka [10]

Answer:

24 times

Step-by-step explanation:

3/10 of 80 is 24

3*8=24

10*8=80

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3 years ago

Solve-1/8<34 then graph it

Vlada [557]

Answer:

This isn’t really a valid equation, so I’m guessing you forgot to type something.

Step-by-step explanation:

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3 years ago

A random sample of 64 bags of white cheddar popcorn weighed, on average, 5.23 ounces with a standard deviation of 0.24 ounce.

emmasim [6.3K]

Answer:

We conclude that cheddar popcorn weighed less than 5.5 ounces.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ =5.5 ounces

Sample mean, $\bar{x}$ = 5.23 ounces

Sample size, n = 64

Alpha, α = 0.05

Sample standard deviation, σ = 0.24 ounce.

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 5.5\text{ ounces}\\H_A: \mu < 5.5\text{ ounces}$

We use One-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{5.23 - 5.5}{\frac{0.24}{\sqrt{64}} } = -9$

Now, $z_{critical} \text{ at 0.05 level of significance } =-1.645$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that cheddar popcorn weighed less than 5.5 ounces.

3 0

3 years ago

Professor Williams wrote some statements on the board: 1. Newton observed an apple falling off a tree and speculated that all th

romanna [79]

I THINK ITS A THEORY HOPE THIS HELPS ;}

8 0

3 years ago

Read 2 more answers

What is the surface area of the figure? Use 3.14 for π.

fredd [130]

Answer:

Option 3

Step-by-step explanation:

We want to work out the surface-area

This is a cylinder and the formula for the surface area of a cylinder is :

2πrh+2πr^2

^ means to the power of

The radius is 15

The length is 18

2(3.14)(15)(18) + 2(3.14){15}^2

Part 1:

(6.28)(15)(18)

(6.28)(270)

1695.6

Part 2:

First, we do the exponents,

15^2 = 225

(6.28)(225)

1413

Part 3:

1695.6 + 1413 = 3108.6

Answer: 3108.6

Hope this helps :)

6 0

3 years ago

Read 2 more answers