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Ronch [10]
3 years ago
9

C and D are inverses of one another.

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
3 0

Answer:

the answer is 1,0,0,1

Step-by-step explanation:

e1=1

e2=0

e3=0

e4=1

x=-3

No, because their product is not equal to the identity matrix.

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Find the slope of the line that contains (3,-5) and (5,5)
3241004551 [841]

slope (M) = (y2-y1)/(x2-x1)

                   x1 =3, y1= -5, x2 = 5, y2=5

 = (-5-5) / (3-5) = -10/-2 = 5

M=5

5 0
3 years ago
What is the equation of a line in slope intercept form that is perpendicular to y=2/3x+2 and passes through the points (-2,2)? H
JulijaS [17]

Answer:

y = -\frac{3}{2}x -1

Step-by-step explanation:

Given

Perpendicular to y = \frac{2}{3}x + 2

Pass through (-2,2)

Required

Determine the line equation

First, we need to determine the slope of y = \frac{2}{3}x + 2

An equation is of the form:

y = mx + b

Where

m = slope

In this case:

m = \frac{2}{3}

Next, we determine the slope of the second line.

Since both lines are perpendicular, the second line has a slope of:

m_1 = \frac{-1}{m}

m_1 = \frac{-1}{2/3}

m_1 = -\frac{3}{2}

Since this line passes through (-2,2); The equation is calculated as thus:

y - y_1 = m_1(x - x_1)

Where

(x_1,y_1) = (-2,2)

This gives:

y - 2 = -\frac{3}{2}(x - (-2))

y - 2 = -\frac{3}{2}(x +2)

y - 2 = -\frac{3}{2}x -3

Add 2 to both sides

y - 2+2 = -\frac{3}{2}x -3 + 2

y = -\frac{3}{2}x -1

8 0
3 years ago
3. Mrs Green bakes muffins.
Sphinxa [80]

Answer:

85%

Step-by-step explanation:

Monday:

200 x 0.70 = 140

200 - 140 = 60

Tuesday:

400 x ? = 60

400 x 0.85 = 340

400 - 340 = 60

8 0
4 years ago
4.A peach weighs 55 grams. If you buy 6 peaches and they sell for $5.50 per kilogram, how
umka21 [38]

Answer:

1.815

Step-by-step explanation:

1peach=55grams

6peaches=?

55*6=330grams

1kg=1000grammes

    =330grams

330 divide 1000=0.33

                    1kg=5.50

              0.33kg=                                Hence,0.33*5.50=1.815

1.815

7 0
3 years ago
Evaluate (-A)2 for A = 5, B = -4, and C = 2.<br> 0-5<br> 0-25<br> 25<br> Help please
AlexFokin [52]

It will be 25

Hope you get it right

7 0
3 years ago
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