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3 years ago

13

Kevin has completed 36% of his running marathon. he has ran 9 miles. How long is the marathon?

1 answer:

bogdanovich [222]3 years ago

3 0

Answer:

25 miles

pls tell if I'm wrong

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Seams Personal advertises on its website that 95% of customer orders are received within four working days. They performed an au

Anna71 [15]

Answer:

500 orders

Step-by-step explanation:

500

4 0

3 years ago

Write 45% as a fraction or mixed number in simplest form.

ANTONII [103]

Simple, convert it to a decimal, first

move the decimal two places to the left

45% $\\$

0.45.

Then you change it into a fraction

45/100.

But, you can simplify it even more by dividing the numerator and denominator by 5.

45/5=9
and
100/5=20

Thus, it would be simplified, 9/20.

6 0

4 years ago

Read 2 more answers

These tables of values represent continuous functions. In which table do the values represent an exponential function?

vichka [17]

Answer:

The correct option is B.

Step-by-step explanation:

A function is called an exponential function if it has common ratio.

A function is called an linear function if it has common difference.

In option A.

$\frac{f(2)}{f(1)}=\frac{6}{3}=2$

$\frac{f(3)}{f(2)}=\frac{9}{6}=\frac{3}{2}$

$2\neq \frac{3}{2}$

Since the given table has different ratio, therefore it is not an exponential function. Option A is incorrect.

In option B.

$\frac{f(2)}{f(1)}=\frac{6}{2}=3$

$\frac{f(3)}{f(2)}=\frac{18}{6}=3$

$3=3$

Since the given table has common ratio, therefore it is an exponential function. Option B is correct.

In option C.

$\frac{f(2)}{f(1)}=\frac{22}{10}=\frac{11}{5}$

$\frac{f(3)}{f(2)}=\frac{34}{22}=\frac{17}{11}$

$\frac{11}{5}\neq \frac{17}{11}$

Since the given table has different ratio, therefore it is not an exponential function. Option C is incorrect.

In option D.

$\frac{f(2)}{f(1)}=\frac{8}{7}$

$\frac{f(3)}{f(2)}=\frac{9}{8}$

$\frac{8}{7}\neq \frac{9}{8}$

Since the given table has different ratio, therefore it is not an exponential function. Option D is incorrect.

3 0

3 years ago

Read 2 more answers

(8.1·10^−4)^2<br> Please HELP

Mandarinka [93]

The answer is 6.561×10^−7, I put the steps in the picture. Hope this helps, have a blessed day! :-)

5 0

3 years ago

The 555 points plotted below are on the graph of y=\log_b{x}y=log

adell [148]

Answer:

See attachment for graph

Step-by-step explanation:

<em>See comment for correct question</em>

Given

$y = \log_bx$

Required

The corresponding points on $y =b^x$

On the graph, we have:

$(x_1,y_1) \to (1,0)$

$(x_2,y_2) \to (2,1)$

$(x_3,y_3) \to (4,2)$

$(x_4,y_4) \to (8,3)$

$(x_5,y_5) \to (16,4)$

First, we solve for b in $y = \log_bx$

Using laws of logarithm, the equivalent of the above is:

$x = b^y$

$(x_2,y_2) \to (2,1)$ implies that:

$2 = b^1$

$2 = b$

Rewrite as:

$b =2$

So, the equation $y =b^x$ becomes:

$y = 2^x$

Using the same values of x, we have:

$(x_1,y_1) = (1,2)$

$(x_2,y_2) = (2,4)$

$(x_3,y_3) = (4,16)$

$(x_4,y_4) = (8,256)$

$(x_5,y_5) = (16,65536)$

<em>See attachment for graph</em>

7 0

3 years ago