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Pavlova-9 [17]
3 years ago
13

A student expanded an expression, as shown. Is the student's work correct? Explain why or why not.

Mathematics
2 answers:
Schach [20]3 years ago
7 0

Answer:

No, the work is not correct. The distributive property was not used properly to expand the expression. Negative 6 should be multiplied by both terms in the parentheses. The second product should be -6 times -2/13 to get positive 12/13.

Step-by-step explanation:

Just answered the question. Just copy and paste its the work to work answer

Ugo [173]3 years ago
4 0

Answer:

No.

Step-by-step explanation:

Honestly, I'm not entirely certain. The steps are formatted very weirdly and I'm not sure what they are.

I believe the first step is -6(4x-213) which is a different expression than the last  step which is (-24x-1213) but those aren't very similar.

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Rewrite the decimal fraction as a decimal number.
Sergio039 [100]

Answer:

8.025

Step-by-step explanation:

If you count the zeros in 1000, it's three. Count three starting from the back of 25. Add 0 in front of 25 to make it a three digit number. You then put the decimal point with the whole number.

7 0
3 years ago
Quick algebra 1 question for 25 points!<br><br> Only answer if you know the answer, Tysm!
zzz [600]

Using a quadratic regression equation, it is found that the prediction of volunteers in year 10 is of:

A. 47.

<h3>How to find the equation of quadratic regression using a calculator?</h3>

To find the equation, we need to insert the points (x,y) in the calculator.

In this problem, we have that the function initially increases, then it decreases, which means that it is a quadratic function. The points (x,y) to  be inserted into the calculator are given as follows:

(1, 20), (2,17), (3, 16), (4,16), (5,18), (6,21), (7,25), (8,31)

Inserting these points into the calculator, the prediction of y for a value of x is given as follows:

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Hence, when x = 10, the prediction is:

y = 0.702 x 10² - 4.726 x 10 + 23.857

y = 47.

Hence option A is correct.

More can be learned about a quadratic regression equation at brainly.com/question/24028025

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4 0
1 year ago
sammy counted peanuts in several packages of roasted peanuts. He found that the bags had 102, 114, 97, 85, 106, 120, 107, and 11
zmey [24]
Probably a for plot, because It shows how close each value is, or if the values are all scattered around. it gives you a more accurate ways of seeing how close the data is. hope this helped
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3 years ago
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There are two expressions

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3 years ago
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qwelly [4]

Answer:

c

Step-by-step explanation:

the graph is inconsistent

5 0
3 years ago
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