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REY [17]
2 years ago
8

"select all the numbers that are solutions to the equation x^3=27"

Mathematics
1 answer:
Ymorist [56]2 years ago
4 0
B and C

3^3 = 27
the cubed root of 27 is 3
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A phone cost 199$ and is on sale for 25% off. What is the sale price?
andrey2020 [161]

Answer:

<em>See below.</em>

Step-by-step explanation:

Divide the percentage by 100 to turn it into decimal form.

\frac{25}{100}=.25

Then, multiply the percentage by the original amount.

199*.25=49.75

Last, subtract that from the original price.

199-49.75=149.25

<em>Answer: </em>149.25

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6 0
2 years ago
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den301095 [7]

Answer:

Step-by-step explanation:

3 * 4 = 12 - 6

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This statement is false

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1 year ago
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Multiply (6 + 2i)(6 - 2i)
Aleksandr-060686 [28]

Answer:

40

Step-by-step explanation:

(6 + 2i)(6 - 2i)=40

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3 years ago
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I NEED FAST HELP!!!!!!!!!!!!!!!!!!!
Sindrei [870]

Answer:

The student is expected to spend <em>15.4 hours </em>doing homework

Step-by-step explanation:

The scattered plot shows there is a close correlation between the variables. A line of best fit will go through the 'center' of the points. Since we are not required to find an exact line, we'll draw it in red color as shown below

To know the equation of that line, we must take two clear points of it from the graph. We'll pick (28,4) and (4,25)

The equation of a line, given two points (a,b) and (c,d) is

\displaystyle y-b=\frac{d-b}{c-a}(x-a)

Using the selected points

\displaystyle y-4=\frac{25-4}{4-28}(x-28)

Simplifying and computing results, the equation is

\displaystyle y=-\frac{7}{8}x+\frac{57}{2}

Using that equation, we can predict how many hours the students will spend doing homework if they spend 15 hours watching TV

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So the student is expected to spend 15.4 hours doing homework

7 0
3 years ago
Which graph represents a proportional relationship?
Vadim26 [7]

Answer:

The one shown in the photo

Step-by-step explanation:

A proportional relationship is one in which the relationship increases steadily, which looks like a straight line when graphed. Also, the line should pass through the <em>origin</em>, which is the point (0, 0) on a graph.

The graph shown increases steadily (it's a straight line), and passes through the origin (point 0,0) as well. So, it's proportional. Hopefully that's helpful! :)

7 0
3 years ago
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