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PolarNik [594]
3 years ago
9

Is the graph of 4x + 5y = a line? Explain.

Mathematics
1 answer:
malfutka [58]3 years ago
8 0

Answer:

Step-by-step explanation:

4x + 5y = 0 means : y=(-4/5)x

is the line passes by O(0 ; 0) when the slope is -4/5

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A textbook weighs 2.5 pounds. How many kilograms does the textbook weigh? Round your answer to the nearest tenth of a pound. 1 k
Alenkasestr [34]
The solution to the problem is as follows:

Given: 2.5 lb

Asked: 2.5 lb -----> kg

Answer:

2.5 lb * ( 1 kg/2.2 lb) = 1.1 kg

Therefore, the weight of the book in kg is 1.1 kg.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
Fiona recorded the mean math exam grade for six random samples of students from the entire seventh-grade class. Sample Sample Me
Charra [1.4K]

The reason why Fiona cannot make a valid prediction based on the mean of the population is that the variation of Fiona’s samples is too large.

<h3>Why can't Fiona use the means she recorded?</h3><h3 />

Mean is quite sensitive to outliers so it is best used when the variation between variables is not too much.

In Fiona's case, there variation is quite high with high variable of 95 compared to a low value of 45.

Find out more on effect of outliers at brainly.com/question/16815987.

#SPJ1

7 0
2 years ago
Please Please help !!
solmaris [256]

Answer:

When y = |x + h|, the graph is shifted (or translated) <u>to the left.</u>

When y = |x - h|, the graph is shifted (or translated) <u>to the right.</u>

Step-by-step explanation:

Part A:

The parent function of vertex graphs are y = |x|, and any transformations done to y = |x| are shown in this format (also known as vertex form): y = a|x - h| + k

(h , k) is the vertex of the graph.

So, for the first part, what y = |x + h| is saying is y = |x -  (-h)|.

The -h is substituted for h, and negatives cancel out, resulting in x + h.

This translates to the left of the graph.

Part B:

For the second part, y = |x - h| looks just like the normal vertex form. In this one, we are just plugging in a positive value for h.

This translates to the right of the graph.

3 0
3 years ago
"cube has a volume of 125 cubic inches. What is the length of each edge?"
s2008m [1.1K]
5. Each side is equal and you need to find what number times itself 3 times gets 125, which in this case is 5. 5x5x5= 125, which means 5 is the correct answer.
6 0
2 years ago
The amount of time it takes Ariana to do a math problem is continuous and uniformly distributed between 38 seconds and 79 second
solniwko [45]

Answer:

29.27% probability that it takes Ariana between 58 and 70 seconds to do a math problem

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X between c and d, d being greater than c, is given by the following formula:

P(c \leq X \leq d) = \frac{d-c}{b-a}

Uniformly distributed between 38 seconds and 79 seconds.

This means that a = 38, b = 79

What is the probability that it takes Ariana between 58 and 70 seconds to do a math problem

c = 58, d = 70

P(58 \leq X \leq 70) = \frac{70 - 58}{79 - 38} = 0.2927

29.27% probability that it takes Ariana between 58 and 70 seconds to do a math problem

4 0
3 years ago
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