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3 years ago

Solve x2 = −169. undefined 13 ą13 −13

Mathematics

1 answer:

IrinaK [193]3 years ago

7 0

To find the answer you simply find the square root of -169 which is 13 so x=13

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Answer:

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3 years ago

The null and alternate hypotheses are: H0: π1 ≤ π2 H1: π1 > π2 A sample of 100 observations from the first population indicat

nadezda [96]

Answer:

365

Step-by-step explanation:

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3 years ago

72 = 8 x 9

vivado [14]

8988989889 IDK hate doing the it but luv getting the answers

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3 years ago

Read 2 more answers

The ransin sports company has noted that the size of individual customer orders is normally distributed with a mean of $112 and

Sonja [21]

Standard error of the mean is computed by:

Standard error = SD/ sqrt N

Where:

N is the sample size

SD is the standard deviation

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So plugging in our data:

Standard error = 3 / sqrt (16)

= 0.75

3 0

3 years ago

A long paper strip with a width of 5 cm is folded, as shown in the picture. Find the smallest possible area of the gray triangle

Stolb23 [73]

By using some logic and the formula of the triangle's area, we will find that the smallest possible area is 12.5 cm²

How to start thinking about the problem.

First of all, for the configuration of this paper strip, we can see that the base of the triangle will always be equal of the width of the paper. Thus, the smallest area will be only dependent of the height of the triangle.

Now, we need to analyze the picture to figure out how we can get the smallest height possible for that triangle.

What is the smallest height possible.

Doing this, we shall see that the smallest height possible is actually when the height equals the width itself, as it's shown in the attached image.

How to calculate the smallest area possible.

Thus, to calculate the smallest area, we just have to use the formula of the area of the triangle, which is $\frac{b\times h}{2}$ , where b is the base and h is the height.

As we previously found, for this question, the

base = height = width of the paper = 5cm

Now, we just have to calculate it with the formula

$Area = \frac{base \times height}{2} \\\\
\\
Area = \frac{5 \times 5}{2} \\
\\
Area = \frac{25}{2}\\
 \\
Area = 12.5 cm^{2}$

learn more about the area of the triangle here: brainly.com/question/15442893

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2 years ago