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enot [183]
2 years ago
15

A consumer wanted to find out how accurate Siri (an Apple digital assistant) is, so he asked questions on general facts and reco

rded how many Siri got right. Out of the 84 questions he asked Siri, Siri responded correctly to 73 of them. What is the estimate of the population proportion
Mathematics
1 answer:
Mashcka [7]2 years ago
6 0

Answer:

The answer is "0.869"

Step-by-step explanation:

Number of sample (n) = 84

Number of correct response (X) = 73

Calculating the Sample proportion:

Formula:

\text{Sample proportion}=\frac{\text{number of sample}}{\text{correct responses}}

                              =\frac{n}{X}\\\\= \frac{73}{84} \\\\=0.869

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xxTIMURxx [149]

Given:

Consider the below figure attached with this question.

To find:

The interpretation for x-intercept in this context.

Solution:

In the given graph x-axis represents the second since sending print job and y-axis represents the Pages printed.

At x-axis the y-coordinate is 0. It means the x-axis represents the number of seconds that passed before the printer started printing pages.

Therefore, the correct option is C.

4 0
2 years ago
ALGEBRAIC PROOF!!!! PLS HELP!!! The area of a rectangular blanket is 20 square feet. The blanket's length is (2x + 1) ft and the
Fynjy0 [20]

Answer:

Length: 5 ft; width: 4 ft.

Step-by-step explanation:

A = LW     formula for area of rectangle

(2x + 1)(2x) = 20      substitute length, width, and area into formula

4x² + 2x - 20 = 0      use the distributive property to multiply out left side

2x² + x - 10 = 0         divide both sides of equation by 2

(2x + 5)(x - 2) = 0        factor out trinomial

2x + 5 = 0  or  x - 2 = 0        use zero product rule to solve for x

2x = -5  or x = 2       subtract 5 from both sides; add 2 to both sides

x = -5/2  or  x = 2

We discard x = -5/2 since it would give negative length and width, and the length and width cannot be negative.

Length: 2x + 1 = 2(2) + 1 = 5

Width: 2x = 2(2) = 4

Length: 5 ft; width: 4 ft.

7 0
2 years ago
An object that starts at rest accelerates until it is moving at 247 km/h. If it takes 1.7 minutes for this change to occur what
fredd [130]

I figured out the answer Chaseashley24! The answer to your question is:

0.673 m/s²

Hope this helps!

6 0
3 years ago
Jonah plants flower in garden. He plants 2 flowers in each row and 5 rows. DrAw an array to figure out how many flowers he has p
Zarrin [17]
##
##
##
##
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each number sign is a flower. he planted 10 flowers.
5 0
2 years ago
PLEASE HELP I NEED THE ANSWER NOW WILL GIVE YOU BRAINLEST
dimulka [17.4K]

Answer:

your answer is C

Step-by-step explanation:

8 0
2 years ago
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