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3 years ago

If f(x) = [xl-5, what is f(8.6)?

Mathematics

1 answer:

Fynjy0 [20]3 years ago

4 0

Answer:

3 or 4, depending on the intended meaning of [x]

Step-by-step explanation:

Perhaps you mean ...

$\displaystyle f(x)= \lfloor x\rfloor -5\\\\f(8.6)=\lfloor 8.6\rfloor-5=8-5=3$

On the other hand, perhaps you mean ...

$\displaystyle f(x)=\lceil x\rceil -5\\\\f(8.6)=\lceil 8.6\rceil-5=9-5=4$

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At a carnival, 700 tickets were sold for a total

Diano4ka-milaya [45]

Answer:

The adult tickets are 400 and the children tickets are 300.

Step-by-step explanation:

Given:

At a carnival, 700 tickets were sold for a total amount of $5500. An adult ticket cost $10 and a children's ticket cost $5.

Now, to find the number of adult tickets and the number of children's tickets sold.

Let the number of adult tickets be $x.$

And let the number of children tickets be $y.$

So, the total number of tickets sold:

$x+y=700\\\\y=700-x\ \ \ ....(1)$

Now, the total amount of tickets:

$x(10)+y(5)=5500$

Substituting the value of $y$ from equation (1):

$x(10)+(700-x)(5)=5500\\\\10x+3500-5x=5500\\\\5x+3500=5500$

Subtracting both sides by 3500 we get:

$5x=2000$

Dividing boths sides by 5 we get:

$x=400.$

The number of adult tickets = 400.

Now, substituting the value of $x$ in equation (1) we get:

$y=700-x\\\\y=700-400\\\\y=300.$

The number of children tickets = 300.

Therefore, the adult tickets are 400 and the children tickets are 300.

8 0

3 years ago

Quadrilateral OPQR is inscribed inside a circle as shown below. Write a proof showing that angles O and Q are supplementary

denis-greek [22]

As anoutline, angles O and Q are inscribed angles which are measured by one-half of its intercepted arc.
angle O = 1/2 arc RQP
angle Q = 1/2 arc ROP

so arcs RQP and ROP together make up the entire circle which has 360 degrees.

so angles O and Q is 1/2 (360) = 180 degrees (supplementary angles).

6 0

3 years ago

What is the diameter of a circle that has an area of 49pie

tester [92]

There would not be one

6 0

3 years ago

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Using the formula v= l x w x h find the volume of a right rectangular prism when the length of the prism is 45cm the width is 12

jeka94

V = length times width times height
V = 45 * 12 * 10
V = 5400

Hope this helps

3 0

3 years ago

Which of the following consists of equivalent fractions

NeTakaya

The first one is the only one that shows equivalent fractions

If correct brainliest please

Thank you and Your welcome

:)

3 0

3 years ago

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