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geniusboy [140]
2 years ago
7

Lillie and Adam are simplifying the expression 643 Whose reasoning is correct?

Mathematics
1 answer:
Luda [366]2 years ago
7 0

Answer:

The first one

"Only Lillie is correct" that's the right answer.

Step-by-step explanation:

64^2/3 = 16

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Polynomials are written with the exponents of the terms in ___ order
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Answer:

numeric maybe?

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3 years ago
The sum of two numbers<br> is 8. their difference is 12.<br> find the numbers.
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X + y = 8
x - y = 12
--------------add
2x = 20
x = 20/2
x = 10

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10 + y = 8
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ur numbers are 10 and -2
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3 years ago
Read 2 more answers
Which of the following numerical data sets has a mean of 40?
34kurt

Answer:

The answer is B) 21, 34, 65

Step-by-step explanation:

21 + 34 + 65 = 120

120 divided by 3 = 40.

In order to find the mean you must add up all of the numbers in the numerical data set, then divide that by how many numbers there are. Hope this helps! :)

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2 years ago
A line and a circle intersect at the points A and B. Use the equations below to find the coordinates of the points of intersecti
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Answer:

<h2>A(-2, 2) and B(6, 10)</h2>

Step-by-step explanation:

Given the equation of a line y = x + 4 and equation of a circle as

( x − 3 )² + ( y − 5 )² = 34, if the line and the circle intersect at points A and B, to get this points, we will substitute the equation of the line into that of the circle as shown;

We will have to expand the equation of the circle first before making the substitute.

( x − 3 )² + ( y − 5 )² = 34

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Substituting y = x+ 4 into the resulting expression;

x²+(x+4)²-6x+-10y = 0

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x = -2 and 6

when x = -2;

y = -2+4

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when x = 6

y = 6+4

y = 10

The coordinates of the point of intersection are A(-2, 2) and B(6, 10).

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