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Sophie [7]
3 years ago
11

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Mathematics
1 answer:
butalik [34]3 years ago
3 0

Answer:

C

Step-by-step explanation:

Hello There!

The height of the water starts at 3 feet and its receding at a rate of .75 feet an hour

receding means to move farther away from previous position

so the equation would be

3-.75t

or

-.75t + 3

So we can conclude that the answer is C

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Find the Relative Change in the values of the function f(x) = x3 + 2 between x = 1 and x = 2.5 Enter your answer accurate to thr
ehidna [41]

Answer:

9.750

Step-by-step explanation:

formula for average rate of change is ;

f(b)- f(a)/b- a

here a = 1 and b = 2.5

f(b) = (2.5)^3 + 2 = 17.625

f(a) = 1^3+ 2 = 3

using the formula above, we have it that

(17.625-3)/2.5-1 = 9.750

4 0
3 years ago
Find EXACT area of regular hexagon (keep in radical form)
pickupchik [31]

Answer:

1. 24\sqrt{3}   2. 162\sqrt{2}

Step-by-step explanation:

1. The area of a hexagon is A = \frac{3\sqrt{3} }{2} a^{2}

Here our a is 4, so plugging in 4 to our equation gives \frac{3\sqrt{3} }{2} (4^{2}) which simplifies to 24\sqrt{3}

2. The area of an octagon is 2\sqrt{2} r^{2}

Here our r is 9, so plugging in 9 to our equation gives 2\sqrt{2} (9^{2} ) which simplifies to 162\sqrt{2}

6 0
4 years ago
First one how you do it and the second one is the problem
MrRissso [65]
You didn’t upload any picture maybe you forgot to
4 0
3 years ago
Find two positive numbers satisfying the given requirements. The product is 432 and the sum of the first plus three times the se
kogti [31]

Answer:

<h3>36 and 12</h3>

Step-by-step explanation:

Let the two positive integers be x and y.

If their product is 432, then

xy = 432 ......... 1

Also if the sum of the first plus three times the second is a minimum, then;

p(x) = x + 3y

From 1;

y = 432/x ..... 3

Substitute 3 into 2;

p(x) = x+3y

p(x)= x + 3(432/x)

p(x) = x + 1296/x

Since the expression is at minimum when dp(x)/dx = 0

dp/dx = 1 + (-1296)/x²

dp/dx = 1  -1296/x²

0 =  1  -1296/x²

0 = (x²-1296)/x²

cross multiply

0 = x²-1296

x² = 1296

x = √1296

x = 36

Since xy = 432

36y = 432

y = 432/36

y = 12

Hence the two positive numbers are 36 and 12

4 0
3 years ago
I need help with this!
sertanlavr [38]

Answer:

67 degrees

Step-by-step explanation:

first find angle abc by subtracting 68 from 101 == 33

then add it to half of 68 (34) to get angle abe

we know it is half because if there is a bisector, both angles cbe and ebd are equal

8 0
3 years ago
Read 2 more answers
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