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2 years ago

10

The water level in an ocean bay changes at an average rate of 3 meters per hour. At this rate, how many hours would it take for

the water level to change 12 meters?

1 answer:

oksian1 [2.3K]2 years ago

3 0

It would take four hours because four times three is twelve.

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2x + 4) - 5<br> please help!<br> (simplify it)

pochemuha

Answer:

2x-1

Step-by-step explanation:

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2 years ago

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What are four ways to represent functions?

telo118 [61]

A function can be represented verbally. For example, the circumference of a square is four times one of its sides.
A function can be represented algebraically. For example, 3x+6 3 x + 6 .
A function can be represented numerically.
A function can be represented graphically.

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What is 23,356.4739 rounded to the nearest whole number

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F(1)=7, F(n)= -4* f(n-1)+15<br><br> Find the first four terms

Virty [35]

First four terms are 7, -13, 67, -253

<em><u>Solution:</u></em>

Given that,

$f(1) = 7$

<em><u>The formula to find nth term is given as:</u></em>

$f(n) = -4 \times f(n-1) + 15$

We can find the first four terms by substituting n = 2, 3, 4

<em><u>First term:</u></em>

f(1) = 7

<em><u>Second term:</u></em>

Substitute n = 2

$f(2) = -4 \times f(2-1) + 15\\\\f(2) = -4 \times f(1) + 15\\\\Substitute\ f(1) = 7\\\\f(2) = -4 \times 7 + 15\\\\Simplify\\\\f(2) = -28 + 15\\\\f(2) = -13$

<em><u>Third term:</u></em>

Substitute n = 3

$f(3) = -4 \times f(3-1) + 15\\\\f(3) = -4 \times f(2) + 15\\\\Substitute\ f(2) = -13\\\\f(3) = -4 \times -13 + 15\\\\Simplify\\\\f(3) = 52+15\\\\f(3) = 67$

<em><u>Fourth term:</u></em>

Substitute n = 4

$f(4) = -4 \times f(4-1) + 15\\\\f(4) = -4 \times f(3) + 15\\\\Substitute\ f(3) = 67\\\\f(4) = -4 \times 67 + 15\\\\Simplify\\\\f(4) = -268+15\\\\f(4) = -253$

Thus first four terms are 7, -13, 67, -253

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3 years ago

2/3 - 5bx = bx + 1/3 In the equation shown above, b is a constant. For what value of b = NO SOLUTIONS? A. 5 B. 0 C. -5 D. 2/5

Dmitry_Shevchenko [17]

Answer:

B

Step-by-step explanation:

Here, we want to know at what values of b does the equation becomes not solvable

Now looking at the left hand side, we have;

2/(3-5bx) and also the right hand side bx + 1/3

For this expression if we insert b = 0, then automatically x cancels out on both sides of the equation and we shall be left with nothing to solve

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2 years ago