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3 years ago

The sales tax for an item was $36.80 and it cost $460 before tax.

Mathematics

1 answer:

katen-ka-za [31]3 years ago

4 0

Answer:

16,928

Step-by-step explanation:

just solve it in calculation so you can see the answer

and remember study hard to go to bts concert joke to your dream

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Suppose you take a survey of all the schools in your state. What would you expect the relationship between the number of student

Slav-nsk [51]

I think the best option would be C

7 0

3 years ago

The area of a square room is 16x^2+72x+81. what is the length of one side of the room

maxonik [38]

To find this you know that the A of a square = s^2

So the length of one side equals $s = \sqrt{16 x^{2} +72x+81}$

Since this is a perfect square, it would equal $A = (4x+9)^{2}$

And $s = \sqrt{(4x+9)^{2}} = 4x+9$

Also you know it is a perfect square because the first and last terms are perfect squares :) :D

4 0

3 years ago

A box contains 3 coins, one fair, one weighted with a 2 3 chance of coming up heads, and one weighted with a 2 3 chance of comin

ddd [48]

Answer:

The probability that we have a fair coin is 0.2717

Step-by-step explanation:

Let Ci be the event that the coin i is used for while we let i = 1,2,3 (representing the three coin)

We also let H be the event that the coin which is flipped lands (which is head)

Therefore, the problem arise:

That: P(H/C1) = 1/2.............fair coin

p(H/C2) = 2/3..........Chance of head

p(H/C3) = 2/3............Chance of tail

Now, noting that the coin was picked at random,

We have, : p(Ci) = P(C1) = P(C2) = P(C3) = 1/3

We can then say that or calculate thus:

P( C2 | H ) = P (H ∩ C2) ÷ P(H)

Where P (H ∩ C2) means the probability of event intersection

= P(H ∩ C2) ÷ P(H ∩ C1) + P(H ∩ C2) + P(H ∩ C3)

= P(H | C2) P(C2) ÷ P(H | C1) P(C1) + P(H | C2) P(C2) + P(H | C3) P(C3)

= (1 / 2) (1 / 3) ÷ (1/2)(1/3) + (2/3)(1/3) + (2/3) (1/3)

0.5 × 0.3 ÷ (0.5 × 0.3) + (0.67 × 0.3) + (0.67 × 0.3)

0.15 ÷ 0.15 + 0.201 + 0.201

=0.15 / 0.552

= 0.2717

7 0

3 years ago

1/3 divided by 4 show your work

Molodets [167]

Answer:

= 1/12

Step-by-step explanation:

1/3 ÷ 4

= 1/3 × 1/4

You turn ÷ to × , when this is done, the next number after the × would be turned also to its inverse or reciprocal.

= 1/3 × 1/4

Multiply the numerator and denominator

That is

= (1 × 1) / (3 × 4)

= 1/12

hope this was helpful, please rate as brainliest

5 0

4 years ago

You are given the right triangle below. Find each of the trig ratios. Enter your answers as fractions in lowest terms.

grin007 [14]

Check this attachment

7 0

3 years ago