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sweet-ann [11.9K]
3 years ago
10

Help me , i need fast​

Mathematics
1 answer:
MAVERICK [17]3 years ago
7 0
I have a feeling it B but I don’t know maybe C
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A local​ eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has
gavmur [86]

Answer:

Step-by-step explanation:

The owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 34 minutes. This is the null hypothesis. It is written as

H0 : µ ≤ 34

The alternative hypothesis would be

Ha : µ > 34

This is a right tailed test because of the greater then symbol in the alternative hypothesis. Since the p value for the test was found to be 0.0281281, if we use a significant level of 0.05, then the conclusion would be

Reject the null hypothesis. Therefore, At a 5% level of significance, the sample data showed significant evidence that the average time spent on the deliveries does exceed 34 minutes.

6 0
4 years ago
What is the area of this shape????
DIA [1.3K]

20cm^2 assuming that each box is one cm

7 0
3 years ago
What is the range of the following function:<br> y = 2(5^x) - 1
Orlov [11]
<h2>Hello!</h2>

The answer is:

The range of the function is:

Range: y>2

or

Range: (2,∞+)

<h2>Why?</h2>

To calculate the range of the following function (exponential function) we need to perform the following steps:

First: Find the value of "x"

So, finding "x" we have:

y=2(5^{x}-1)\\\frac{y}{2}=5^{x}-1\\\\\frac{y}{2}-1=5^{x}\\\\Log_{5}(\frac{y}{2}-1)=Log_5(5^{x})\\\\x=Log_{5}(\frac{y}{2}-1)

Second: Interpret the restriction of the function:

Since we are working with logarithms, we know that the only restriction that we found is that the logarithmic functions exist only from 0 to the possitive infinite without considering the number 1.

So, we can see that if the variable "x" is a real number, "y" must be greater than 2 because if it's equal to 2 the expression inside the logarithm will tend to 0, and since the logarithm of 0 does not exist in the real numbers, the variable "x" would not be equal to a real number.

Hence, the range of the function is:

Range: y>2

or

Range: (2,∞+)

Note: I have attached a picture (the graph of the function) for better understanding.

Have a nice day!

5 0
3 years ago
Given square ABCD, which line segment could be an image of side AD using only a translation?
ArbitrLikvidat [17]

Answer:

The second one

Step-by-step explanation:

7 0
3 years ago
What is f(a+2)? WHAT IS THE FUNCTION
zhenek [66]

Answer:

(5+a)/(a-1)

Step-by-step explanation:

If f(x) = (3+x)/(x-3)

f(a+2) = ?

You replace x with a + 2

So, f(x) = f(a+2)

f(a+2) = (3+a+2)/(a+2-3)

f(a+2) = (5+a)/(a-1)

5 0
3 years ago
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