MATHEMATICS HIGH SCHOOL

Which is equivalent to (4xy – 3z)2, and what type of special product is it?16x2y2 + 9z2, the difference of squares
16x2y2 + 9z2, a perfect square trinomial
16x2y2 – 24xyz + 9z2, the difference of squares
16x2y2 – 24xyz + 9z2, a perfect square trinomial

Answers

Answer 1

Answer:

Answer:

$16x^2y^2-24xyz +9z^2$

Step-by-step explanation:

$(4xy - 3z)^2$

Given expression has exponent 2, so we multiply it twice

$(4xy - 3z)(4xy-3z)$

Apply FOIL method to multiply the parenthesis

multiply 4xy inside the second parenthesis

and multiply -3z inside the second parenthesis

$4xy(4xy-3z)=16x^2y^2-12xyz$

$-3z(4xy-3z)=-12xyz+9z^2$

$16x^2y^2-12xyz-12xyz+9z^2$

Combine like terms

$16x^2y^2-24xyz +9z^2$

Answer 2

Answer: Hello,

Answer D
16x²y²-24xyz+9z² a perfect square trinomial which
le square of the difference of 3z from 4xy.

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What is the measure of an exterior angle of a regular quadrilateral

Answers

-- Any "regular" polygon has all sides equal AND all angles equal.

-- The sum of the angles inside a 4-sided figure is 360° .

-- So it it's a regular figure, then each angle is 360°/4 = 90° .

-- The total angle around each vertex is 360° .
If 90° of them are inside, then the exterior angle is the remaining 270° .

Answer:

90 degrees

Step-by-step explanation:

Which measure results in the highest value for the data given?42,28,35,39,53,12,19,44
A. Range
B. Mean
C. Median
D. Mode

Answers

There is no mode. The median is 37. The range is 41. The mean is 34. Therefore, the answer is the range.

Answer:

Step-by-step explanation:

Point A, located at (-5, 0), is rotated 90°. What are the coordinates of point A'?

Answers

Answer:

(0 -5)

i hope this helps

What characteristics best describe the graph? Choose all that apply. *

Answers

Answer:

Options (1), (3) and (7)

Step-by-step explanation:

Characteristics of the given graph are as followed.

1). For every input value (x-value) there is a different output values (y-values).

So the points on the graph represent a function.

2). Coordinates of all the points are distinct and separate (not in fractions or decimals).

Function given is a discrete function.

3). For every increase in the x-values of the points there is a decrease in y-values.

Therefore, given function is a decreasing function.

Therefore, Options (1), (3) and (7) are the correct options.

Could someone please help with this question?

Answers

You can draw the same box but instead of having six squares across, do five squares across until you have 25 squares total

If school starts at 8:30 a.m. and ends at 3:20 p.m., how long is the school day?5 hours and 10 minutes
11 hours and 50 minutes
6 hours and 50 minutes
6 hours and 10 minutes

Answers

The school day is 6 hours and 50 mins long.

Given to us,

school starts at 8:30 a.m.

ends at 3:20 p.m.,

To understand it easier, Let's round of the time to the nearest values,

8:30 a.m. ≈ 9:00 A.m.

3:20 p.m. ≈ 3:00 p.m.

Now, as we can see at 8:30 a.m. to 9:00 A.m., there is an extra time of 30 mins while at 3:20 p.m. to 3:00 p.m., there is an extra time of 20 mins, therefore we will have an extra time of 50 mins overall if we calculate the time from 9:00 A.M. to 3:00 p.m.