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shtirl [24]
2 years ago
11

Andy got 28 out of 50 problems correct. What percentage did Andy get correct?

Mathematics
2 answers:
CaHeK987 [17]2 years ago
6 0
So you do 28/50x2 so then the 50 is 100 and the top number which is 56 so 56% is the answer
il63 [147K]2 years ago
4 0

Answer:  the answer is 56%

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An object is launched with a velocity at 64 feet per second from a platform 30 feet high. the function H(t)= -16t2+64t+30 repres
PolarNik [594]
To find the maximum or minimum value of a function, we can find the derivative of the function, set it equal to 0, and solve for the critical points.

H'(t) = -32t + 64

Now find the critical numbers:

-32t + 64 = 0

-32t = -64

t = 2 seconds

Since H(t) has a negative leading coefficient, we know that it opens downward. This means that the critical point is a maximum value rather than a minimum. If we weren't sure, we could check by plugging in a value for t slightly less and slighter greater than t=2 into H'(t):

H'(1) = 32

H'(3) = -32

As you can see, the rate of change of the object's height goes from increasing to decreasing, meaning the critical point at t=2 is a maximum.

To find the height, plug t=2 into H(t):

H(2) = -16(2)^2 +64(2) + 30 = 94

The answer is 94 ft at 2 sec.
4 0
3 years ago
A map of the Hill Park hiking trails uses the scale
Makovka662 [10]

Answer:

wish i could help

Step-by-step explanation:

1

1

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7 0
2 years ago
The antiderivative of 5x
Anni [7]

The antiderivate of 5x is 5x^2 / 2 .
5 0
2 years ago
6. a. Name a pair of equations that have exactly one point of intersection. How do you know?
True [87]

Answer:

A system of linear equations will have exactly one point of intersection, for example:

2x+y=5

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However, a system of linear equations with no solution will have no points of intersection, for example:

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Sorry about c. though I'm confused on how a pair of equations can have infinite points of intersection unless x or y equals all real numbers which could happen if x or y both equaled all real numbers maybe

And the point of interesection for the system of equations in the problem you attached as an image is (2,-1)

I attached a photo below, and one of how to graph it

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2 years ago
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krek1111 [17]

Answer:

The expression equivalent to -3( m + 5) is

c) - 3m - 15

Step-by-step explanation:

8 0
2 years ago
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