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gregori [183]
3 years ago
7

Please help me with the following questions. Thanks!

Mathematics
1 answer:
Natali5045456 [20]3 years ago
5 0

Answer:

The answer to your questions  are in bold

Step-by-step explanation:

a)  

 C = \left[\begin{array}{ccc}-6&6\\-2&4\\\end{array}\right]

    = -24 + 12

   = -12

b)  -1   7          -4   -1                   -1  - 4        7 - 1               - 5      6

    -2 -6          -8    8      =          -2 - 8       -6 + 8              -10      2

     2 -3           2   -7                  2 + 2        -3 - 7               4       -10

   -1   10         -6     5                 -1 - 6         10 + 5              -7       15

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Which equation represents a line which is parallel to the x-axis?
Allushta [10]

Answer:

y = 8

Step-by-step explanation:

The equation of a line parallel to the x- axis has equation

y = c

where c is the value of the y- coordinates the line passes through.

Then

y = 8 ← is equation of line parallel to the x- axis

3 0
3 years ago
Is the expression below a perfect square trinomial or the difference of two squares?
DanielleElmas [232]

The expression shown below is a difference of two squares.

<h3>Is a given expression a perfect square trinomial or a difference of two squares?</h3>

In this problem we have an algebraic expression that has to be checked by algebraic procedures. The complete procedure is shown below:

(x² + 8 · x + 16) · (x² - 8 · x + 16)                  Given

(x + 4)² · (x - 4)²                                           Perfect square trinomial

[(x + 4) · (x - 4)] · [(x + 4) · (x - 4)]                 Definition of power / Associative and commutative property

(x² - 16)²                                                      Difference of squares / Definition of power / Result

The expression shown below is a difference of two squares.

To learn more on differences of squares: brainly.com/question/11801811

#SPJ1

7 0
1 year ago
the shaded area of the following shape can be found by subtracting the area of the circle from the area of the triangle?
balu736 [363]
I found the accompanying picture of this word problem.

The circle was inscribe in the triangle. The area outside of the circle but inside the triangle is the shaded area.

True. The shaded area of the following shape can be found by subtracting the area of the circle from the area of the triangle.
7 0
3 years ago
Please explain how you got your answer also. A class has 21 girls and 12 boys. What is the probability that a boy's name is draw
Tresset [83]
It’s the answer 12 over 33
3 0
3 years ago
Can you please explain how to do this so I can understand what to do for the other questions
tatyana61 [14]

Answer:

The circle length is 90*pi which should be 3.14

So the circle length is 282.6

The central angle is 90 degree which is 1/4 part of 360 degree

From the theory of arc, the arc length should also be 1/4 part of circle length.

So the answer should be 1/4 * 282.6 = 70.65

Becasue it should be to the nearest tenth, so the answer should be 70.7

Step-by-step explanation:

7 0
3 years ago
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