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2 years ago

Please help asap I'm not sure how to do this

Mathematics

1 answer:

-BARSIC- [3]2 years ago

8 0

I am not sure sorry about that

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Find the inner product for (-4,9,8) . (3,2,-2) and state whether the vectors are perpendicular.

drek231 [11]

Answer:

-10; no

Step-by-step explanation:

<h2>-4*3 + 9*2 + 8*-2 = -10</h2><h2></h2><h2>-10 does not equal 0 so it is not perpendicular</h2>

6 0

3 years ago

Assume that thermometer readings are normally distributed with a mean of degrees and a standard deviation of 1.00degrees C. A th

Andrew [12]

Answer:

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 0 degrees

Standard Deviation, σ = 1 degrees

We are given that the distribution of thermometer readings is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(Between 0.50 degrees and 1.75 degrees)

$P(0.50 \leq x \leq 1.75)\\\\ = P(\displaystyle\frac{0.50 - 0}{1} \leq z \leq \displaystyle\frac{1.75-0}{1})\\\\ = P(0.50 \leq z \leq 1.75)\\= P(z \leq 1.75) - P(z < 0.50)\\= 0.9599 - 0.6915 = 0.2684 = 26.84\%$

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

7 0

3 years ago

Work out the input for this function machine

Delicious77 [7]

Answer:

Answer is 12 isnt it

Step-by-step explanation:

12×4=48

48+9=57

4 0

2 years ago

What is the standard for of (1 7i)(3-i)?

marissa [1.9K]

3 -1i + 21i -7i2 now you have to fix the last factore because you have to change the imaginery i this would give you the answer of 3 - 1i + 21i +7 now add common factor which would give you the final answer of 3 +20i +7

7 0

3 years ago

Is 0.45 equal to 4/10

Gnesinka [82]

No, $\frac{4}{10}$ equals to 0.4

So 0.4 equals to $\frac{4}{10}$

8 0

2 years ago

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