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tensa zangetsu [6.8K]
3 years ago
10

Use a net to find the surface area of the prism.

Mathematics
1 answer:
Dafna11 [192]3 years ago
8 0
B is correct:
Surface Area=2 Length₁*Width+2height ×width+lenght₂×height
Surface Area =120+2*9*12+2*9*5=426 m²
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What is partial derivative of z=(2x+3y)^10 with respect to x,y?
maw [93]
Not sure if you mean to ask for the first order partial derivatives, one wrt x and the other wrt y, or the second order partial derivative, first wrt x then wrt y. I'll assume the former.

\dfrac\partial{\partial x}(2x+3y)^{10}=10(2x+3y)^9\times2=20(2x+3y)^9

\dfrac\partial{\partial y}(2x+3y)^{10}=10(2x+3y)^9\times3=30(2x+3y)^9

Or, if you actually did want the second order derivative,

\dfrac{\partial^2}{\partial y\partial x}(2x+3y)^{10}=\dfrac\partial{\partial y}\left[20(2x+3y)^9\right]=180(2x+3y)^8\times3=540(2x+3y)^8

and in case you meant the other way around, no need to compute that, as z_{xy}=z_{yx} by Schwarz' theorem (the partial derivatives are guaranteed to be continuous because z is a polynomial).
3 0
3 years ago
Read 2 more answers
The overall regression F-statistic tests the null hypothesis that:____.
AnnZ [28]

Answer:

A

Step-by-step explanation:

F test is a statistical method used to determine which models best fits the population from which the sample is derived. It is a ratio of two variances. Variance measure the rate of dispersion

The formula for calculating f-test = explained variance / unexplained variance

There are two hypothesis in an f test :

1. the  null hypothesis  - all slope coefficient are equal to zero

the alternative hypothesis : at least one of the slope coefficient is not equal to zero

8 0
2 years ago
To get a student learner's permit to drive in New Jersey, an individual must be at least 16 years old. Let, a, represent the age
vredina [299]

Answer:

a\geq 16

Step-by-step explanation:

Let a represents the age at which a person gets a student learner's permit to drive in New Jersey.

Also, an individual must be at least 16 years old to get a student learner's permit to drive in New Jersey.

So, inequality is a\geq 16

(Inequality explains a relationship of greater than or greater than or equal to or less than, or less than or equal to between two mathematical expressions)

5 0
3 years ago
A 3-pack of beaded necklaces costs $4.47. What is the unit price?
inysia [295]

Answer:

1.49 per necklace

Step-by-step explanation:

there are 3 necklaces sold for 4.47. if we divide the three necklaces by the overall price we get the price per necklace. 4.47 divided by 3 = 1.49

7 0
3 years ago
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Explain how you can tell that the equation, description, graph, and table all represent the same situation.
andrew-mc [135]

Answer:think of many situations you can come up with or problems you can solve which will end up with the same answer if u use different methods

Step-by-step explanation:

8 0
3 years ago
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