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3 years ago

A store was having a sale and had a shirt for 3/4 it’s a normal price the shirt is what percent of its normal price

Mathematics

1 answer:

Vadim26 [7]3 years ago

6 0

The shirts normal price is $75 or 75%

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INCREDIBLY URGENT!!

Gemiola [76]

Answer:

When you see a formula like this, try to operate, so you will see some identities sooner or later. In this case, we have a substraction identity:

\frac{cos ( \alpha - \beta )}{cos \alpha cos \beta } = \frac{cos \alpha cos \beta + sin \alpha sin \beta }{cos \alpha cos \beta } = 1 + tan α · tan β

Step-by-step explanation:

3 0

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

there is 135 feet of masking tape on a roll henry has 6 rolls. how many feet of masking tape does he have in all?

charle [14.2K]

Henry has 810 feet of making tape

5 0

3 years ago

Read 2 more answers

Igor, whose eye height is 4.5 ft., wishes to find the height of an oak tree out in front of his castle. He places a mirror on th

Shkiper50 [21]

The answer is 6.7

explanation : take 5.5 and add it from 6.7

7 0

2 years ago

Heeeeeeeeeeeeeelllllllllllllppppppppppp

Temka [501]

Answer:

1/6*6

Step-by-step explanation:

3 0

3 years ago