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blagie [28]
2 years ago
6

Determine if the statements below are true or false. (a) The area vector A of a flat, oriented surface is parallel to the surfac

e. True False (b) If S1 is a rectangle with area 1 and S2 is a rectangle with area 2, then 2 F · dA S1 = F · dA S2 . True False (c) If S is the unit sphere oriented outward and F · dA S = 0 then F (x,y,z) is perpendicular to x i + y j + z k at every point of S. True False
Mathematics
1 answer:
Mazyrski [523]2 years ago
5 0

Answer:

TRUE TRUE FALSE TRUE FALSE TRUE TRUE TRUE

Step-by-step explanation:

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Write a recursive formula for the sequence 1, 5, 9, 13
11Alexandr11 [23.1K]

Answer:

\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}

Explanation:

Sequence: 1, 5, 9, 13

  • Add(ing) 4 every time

\bold{a(1) \ = \ 1}

\bold{\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}}

5 0
2 years ago
When given a graph, the vertical line test can be used to determine functionality. Describe the vertical line test and explain t
just olya [345]

Answer:

When given a graph, the vertical line test can be used to determine functionality. The vertical line test would represent a function if no more than one point of the graph of a relation, this shows that only one output value for each input value. If this doesn't apply or more than one point is on the line then it would not represent a function.

Step-by-step explanation:

Draw vertical lines to intersect on a graph.

The relation is a function if there’s only one point of intersection on a graph.

The relation is not a function if there’s more than one point of intersection on a graph.

The vertical line test is used to determine if each input has exactly one output.

5 0
2 years ago
Read 2 more answers
F(x)=3x 2 +24x+48f, left parenthesis, x, right parenthesis, equals, 3, x, squared, plus, 24, x, plus, 48 What is the value of th
neonofarm [45]

Answer:

The discriminant of function is 0. There one distinct real number zero of f(x)(repeated roots).

Step-by-step explanation:

We are given the following function in the question:

f(x)=3x^2 +24x+48

We have to calculate the discriminant of the function.

Comparing to

f(x) = ax^2+bx+c

We get,

a = 3\\b=24\\c = 48

Discriminant is given by:

D = b^2-4ac

Putting values, we get,

D = (24)^2-4(3)(48) = 0

Thus, the discriminant of function is 0.

Since, the discriminant is zero, the function have repeated real roots. Thus, one distinct real number zero of f(x).

3 0
2 years ago
A piecewise function f(x) is defined as shown. f(x) = StartLayout enlarged left-brace 1st Row 1st column negative five-fourths x
SVEN [57.7K]

Answer:

  A 2-column table has 3 rows. The first column is labeled x with entries 40, 160, 200. The second column is labeled y with entries 60, 15, 0.

Step-by-step explanation:

All of the tables have x=40 in the first column. The function value there is ...

  f(x) = (-3/8)(40) +75 = -15 +75 = 60

Only the last table has y = 60 for x = 40.

__

A check of the other points in that table shows they are all on the same (second) piece of the graph, as required by the problem statement. Those points are marked with a purple x in the attachment.

8 0
2 years ago
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The diagram shows rays of light from a point source, P, that reach a detector, D, along two paths. One path is a straight line,
Lady_Fox [76]
The answer is C) B = 3.6.

Hope this helps and p.s. I have done this before.
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2 years ago
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