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3 years ago

Determine the product of -32 and -21.

Mathematics

2 answers:

Verizon [17]3 years ago

8 0

Answer:

672

Step-by-step explanation:

-32 * -21 = 672

Aleks [24]3 years ago

7 0

Answer:

672

Step-by-step explanation:

You might be interested in

Cos^2(2theta)+ 2cos(2theta)+1=0

Tema [17]

Answer:

θ = π n + π/2 for n element Z

Step-by-step explanation:

Solve for θ:

1 + 2 cos(2 θ) + cos^2(2 θ) = 0

Write the left hand side as a square:

(cos(2 θ) + 1)^2 = 0

Take the square root of both sides:

cos(2 θ) + 1 = 0

Subtract 1 from both sides:

cos(2 θ) = -1

Take the inverse cosine of both sides:

2 θ = 2 π n + π for n element Z

Divide both sides by 2:

Answer: θ = π n + π/2 for n element Z

4 0

3 years ago

What is the measure of angle x? Enter your answer in the box. x=

GREYUIT [131]

Answer:

x = 48°

Step-by-step explanation:

42 + 90 + x = 180 (we can tell because it is a straight line and straight lines are supplementary, ie = 180)

Rearrange the equation so that x is on one side:

x = 180 - 90 - 42

Simplify

x = 48°

4 0

3 years ago

Read 2 more answers

What is the value of X? 30 60 36 48

Alisiya [41]

Take 36 and add it to 60 it gives you 96 then divide it by 2 and the answer is 48

3 0

3 years ago

Read 2 more answers

(f- g)(x) = A. x2 + x-4 B. x2 + x + 4 C. 12- X+6 D. x2+x+6

kirill [66]

Step-by-step explanation:

I rlly think it is c.12-×+4

5 0

4 years ago

Karen is starting a career as a professional wildlife photographer and plans to photograph Canadian Geese at one of the staging

balandron [24]

Answer:

$5000*0.816 = $4082

Step-by-step explanation:

It's a strange question, but based on the statement and the question it sounds like it's a poisson distribution:

* For 3 days she was able to get 2 good shots (typical of that time of the year)

* Good shots happen randomly

* Each day is independent of another

Let's call 'p' the probability that she makes a good shot per day

Let's call 'n' the number of days Karen is taking shots.

So, if in 3 days he got 2 good shots and that is typical at that time of the year, then the expected value for the number of good shots (X) is:

$E(x)=\frac{2}{3}$

For a Poisson distribution $E (x)=\lambda\\\lambda= np$

So:

$\lambda =\frac{2}{3}$

For a Poisson distribution the standard deviation is:

$\sigma = \sqrt{\lambda}\\\sigma = \sqrt{\frac{2}{3}}$

$\sigma = 0.816$ this is the standard deviation for the number of buentas taken.

So the standard deviation for income is the price of each shot per sigma

$5000*0.816 = $4082, which is the desired response.

3 0

3 years ago