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IrinaVladis [17]
4 years ago
5

How do you graph f(x)=-3x^2+5

Mathematics
1 answer:
UNO [17]4 years ago
3 0

Answer:

Make sure you plot your points in a table and set it up on a graph

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
Four interior angles of a pentagon measure 88°, 118°, 132°, and 100°. What is the measure of the fifth interior angle?
bearhunter [10]

Answer:

102 deg

Step-by-step explanation:

The sum of the interior angles of a  n-gon

   are equal to   ( n-2)*180

     for a pentagon   ( 5-2)(180) = 540

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2 years ago
Based on your understanding of sound waves,
Olin [163]

Answer:

The frequency increases as the pitch increases, and the amplitude increases as the volume increases

Step-by-step explanation:

5 0
3 years ago
the speed of a stream is 4mph. If a boat travels 92 miles downstream in the same time that it takes to travel 46 miles upstream,
Elanso [62]

Answer:

12 miles per hour

Step-by-step explanation:

Let speed of boat in still water be "x"

and speed of current be "c"

So, downstream rate would be "x + c"

And, upstream rate would be "x - c"

Now, given c = 4

We can use the distance formula, D = RT, where

D is distance, R is rate, and T is time

to solve this.

Downstream:

D = RT

92 = (x+4)(t)

Upstream:

D = RT

46 = (x-4)(t)

Both the times are same, we can equate both the times. Lets simplify first:

t = 92/(x+4)

and

t = 46/(x-4)

Equate:

\frac{92}{x+4}=\frac{46}{x-4}

Now, cross multiply and solve for x to get our answer:

\frac{92}{x+4}=\frac{46}{x-4}\\92(x-4)=46(x+4)\\92x-368=46x+184\\46x=552\\x=12

Speed of Boat (in still water) = 12 mph

6 0
3 years ago
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