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Setler [38]
3 years ago
11

True or False?In Exercise,determine whether the statement is true or false given that f(x) = In x.if it is false,explain why or

given an example that shows it is false.
if f(x) < 0, then 0 < x <1.
Mathematics
1 answer:
Kay [80]3 years ago
7 0

Answer:

True

Step-by-step explanation:

This is true. Because ln x is determined that if f(x) = lnx then

e^{f(x)} = x

So if f(x) < 0, negative then

e^{f(x)} = \frac{1}{e^{-f(x)}}

where -f(x) is positive and

e^{-f(x)} \geq 1 and positive

So \frac{1}{e^-f(x)} < 1and positive

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Line t passes through points (10, 1) and (2, 6). Line u is perpendicular to t. What is the slope of line u?
diamong [38]

Let's find the slope for line t first.

We can use the given points 2,6 and 10,1 to find the slope using the slope formula.

\frac{y.2 - y.1}{x.2 - x.1} = m

1 - 6 / 10 - 2

-5/8

The slope is -5/8.

Because we know the slope of this line, we can find the slope of the next line instantly, as they are perpendicular.

When a slope is perpendicular to another, it is equal to the negative reciprocal.

Negative reciprocal of -5/8 = 8/5

<h3>The slope of line u is 8/5</h3>
8 0
3 years ago
What is the slope of the line that passes through (-1,3) and (4,6)
WINSTONCH [101]
0.6 would be the slope
5 0
3 years ago
2. The cost of a bicycle is * 2895. Find the cost of 1486 bicycles,
forsale [732]

Answer:

4,301,970

5,149,815

Step-by-step explanation:

The cost of a bicycle is 2895

Therefore the cost of 1486 bicycles is

= 2895×1486

= 4,301,970

A truck can carry 6785 kg of food

Therefore the amount in which 759 truckj can carry can be calculated as follows

= 6785×759

= 5,149,815

7 0
3 years ago
1. Determine the percent of all voters that did not vote Republican or Democrat but voted "other" instead. Round your answer to
lyudmila [28]

Answer:

1. 10%

2. 49.1%

Step-by-step explanation:

1. The percent of voters who are other is the number of other divided by the total number of voters.

The number of "other" votes is 222. The number of total votes is 2,222.

The percent is 222/2222 = 0.0999. Times the decimal by 100 for the percent.

0.0999*100 = 9.99% rounds to 10%.

2. The probability is found by finding the number of male and registered as democrat, which is 600, and dividing it by the number of males, which is 1,222.

600/1,222 = 0.4909

Multiply by the decimal by 100 to find the percent.

0.4909*100 = 49.09 which rounds to 49.1%.

6 0
3 years ago
A circle is inscribed a in a square. The side length of the square is X in. If the area of the shaded region is 20 pie, what is
Alborosie

Answer:

8.555 in.

Step-by-step explanation:

So the area of the square is x^2.

This makes that the area of the circle is x^2 - 20 pie.

The radius of the circle is half of the diameter, so it is 0,5x.

The formula for the circle area is:

Area = pie * r^2.

x^2 - 20 pie = pie * (0,5x)^2

x^2 - 20 pie = pie * 0,25x^2

x^2 - pie * 0,25x^2 = 20 pie

x^2 * (1 - 0,25 pie) = 20 pie

x^2 = 20pie / (1 - 0,25 pie)

x = square root (20pie / (1 - 0,25 pie)) = 17.11

So the radius is 0,5 * 17.11 = 8.555 in.

6 0
3 years ago
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