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What is the determinant of? –18 –8 10 18

Answers

Answer 1
Answer:

Answer:

D

Step-by-step explanation:

Edge
Answer 2
Answer:

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\binom{ | - 18 \: \: \: \: \: - 8| }{ |10 \: \: \: \: \: \: \: \: \: \: \: \: \: \: 18| } = \n

- 18 *18 - ( - 8 * 10) =

- 324 + 80 = - 244

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The point (-7,4) in on the terminal side of an angle t. Find sec (t) to two decimal places.

Answers

Answer:

  -1.15

Step-by-step explanation:

The tangent of the angle can be found as ...

  tan(t) = (y-coordinate)/(x-coordinate) = -4/7

The secant of the angle is related by ...

  sec(t)² = tan(t)² +1 = (-4/7)² +1 = 65/49

Then the secant of this 2nd-quadrant angle is ...

  sec(t) = -√(65/49) = -(√65)/7 ≈ -1.15

0.00000000005 in scientific notation

Answers

It can be written as 5 x 10^ -11 or 0.5 x 10^ -10

Hope it helps.

A quality control inspector has drawn a sample of 15 light bulbs from a recent production lot. Suppose that 60% of the bulbs in the lot are defective. What is the expected value of the number of defective bulbs in the sample

Answers

Answer:

9

Step-by-step explanation:

Expected number of defective is given as :

N x P = np

Where = number of the sample drawn from the production lot

P= percentage of bulbs In The lot which are defective

N = 15

P = 60% = 0.60

So when we do the multiplication,

We have:

NP = 15x0.60

= 9

So in conclusion the expected value of defective bulbs in the sample is 9.

A lightning bolt is graphed on the coordinate plane below. A rotation of this lightning bolt 270° clockwise would place it in which quadrant?A. Quadrant I (x, y)B. Quadrant II (-x, y)C. Quadrant III (-x, -y)D. Quadrant IV (x, -y)

Answers

Explanation

From the image, it can be seen that the initial position of the lightning bolt is in the first quadrant.

After it has been rotated 270 degrees clockwise, it moves by three quadrants and stays in the second quadrant

Answer: Option B

What is the number in scientific notation ?

0.000000000093

Answers

0.000000000093 in scientific notation is 9.3 x 10 ^ -11

Answer:

your answer for  0.000000000093 would defiantly be 9.3 x 10^-11

Step-by-step explanation: i know this cause i took the test and got it wright

What are the factors of the product represented below?TILES
A. (2x2 + 1)(3x2 + 1)
+
B. (5x + 1)(x+1)
C. (2x + 1)(3x + 1)
O D. (3x + 1)(2x+2)

Answers

Answer:

C

Step-by-step explanation:

The top is 2x + 1 and the left is 3x + 1

Answer:

C

The top is 2x + 1 and the left is 3x + 1
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