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3 years ago

11

A national park has eighty thousand , nine- hundred twenty -three and eighty-six hundredths acres of land with shows thus in sta

ndard form

1 answer:

lesya692 [45]3 years ago

8 0

The answer is 80923.86.

Hope This Helps

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(x+40)(x+40) show steps

pishuonlain [190]

(x + 40) * (x + 40) =

(x + 40)² =

x² + 80x + 1600

6 0

3 years ago

This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive an

sleet_krkn [62]

Answer:

-6re−r [sin(6θ) - cos(6θ)]

Step-by-step explanation:

the Jacobian is ∂(x, y) /∂(r, θ) = δx/δθ × δy/δr - δx/δr × δy/δθ

x = e−r sin(6θ), y = er cos(6θ)

δx/δθ = -6rcos(6θ)e−r sin(6θ), δx/δr = -sin(6θ)e−r sin(6θ)

δy/δθ = -6rsin(6θ)er cos(6θ), δy/δr = cos(6θ)er cos(6θ)

∂(x, y) /∂(r, θ) = δx/δθ × δy/δr - δx/δr × δy/δθ

= -6rcos(6θ)e−r sin(6θ) × cos(6θ)er cos(6θ) - [-sin(6θ)e−r sin(6θ) × -6rsin(6θ)er cos(6θ)]

= -6rcos²(6θ)e−r (sin(6θ) - cos(6θ)) - 6rsin²(6θ)e−r (sin(6θ) - cos(6θ))

= -6re−r (sin(6θ) - cos(6θ)) [cos²(6θ) + sin²(6θ)]

= -6re−r [sin(6θ) - cos(6θ)] since [cos²(6θ) + sin²(6θ)] = 1

6 0

3 years ago

What is 3/8<br> as an equivalent fraction with the LCM as the denominator?

tino4ka555 [31]

Answer:

3/8 = 9/24

Step-by-step explanation:

So here we have a basic multiplication problem and finding the LCM of 8 and 3. The first step in this problem is finding the LCM of 3/8. The LCM of 3 and 8 is 24. So yay! we have the bottom half of our answer!

Ex.-

The LCM of 8 and 3 is 24.

So now we have to find an equivalent fraction. Since we already know that 8 (the denominator in the original equation) can be multiplied by 3 to equal 24, we use 3 (the numerator in the original equation) and multiply it by itself to get an equivalent fraction.

Ex.-

8 x 3 = 24

3 x 3 = 9

Now that we have our numerator and denominator, all we have to do now is put them together to get our answer.

Ex.-

9/24 (answer) = 3/8 (original equation)

Hopefully I could help! :)

4 0

2 years ago

A physics class has 50 students. Of these, 10 students are physics majors and 12 students are female. Of the physics majors, t

mylen [45]

Answer:

38% probability that a randomly selected student is female or a physics major.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

Physics majors or female

10 physics majors(of which 3 are female).

12 female(the 3 female physics majors have already been counted, so we count 9)

$D = 10 + 9 = 19$

Total outcomes:

50 students, so $T = 50$

Probability

$p = \frac{D}{T} = \frac{19}{50} = 0.38$

38% probability that a randomly selected student is female or a physics major.

7 0

3 years ago

Read 2 more answers

SAS <br> ASA<br> SSS<br> HL <br><br> I NEED HELP SOMEONE HELP ME

Fynjy0 [20]

The correct answer is sss

5 0

2 years ago