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docker41 [41]
3 years ago
9

A customer purchases groceries for $22.00 before tax, and $23.76 after tax. What percentage sales tax did the customer pay?

Mathematics
1 answer:
icang [17]3 years ago
5 0
12.5 percent sales tax
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Karla tosses a penny 20 times how many times is the penny most likely to land heads up
frutty [35]

Answer:

10

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What are the remaining trig functions? and how do i solve for them? pls help
erastovalidia [21]

You're told that tan(<em>θ</em>) is positive, but

tan(<em>θ</em>) = sin(<em>θ</em>)/cos(<em>θ</em>)

and you're also told that sec(<em>θ</em>) = 1/cos(<em>θ</em>) = -3. So if cos(<em>θ</em>) is negative, sin(<em>θ</em>) must also be negative. In turn, both sec(<em>θ</em>) = 1/cos(<em>θ</em>) and csc(<em>θ</em>) = 1/sin(<em>θ</em>) are also negative.

Now, recall the Pythagorean identity,

cos²(<em>θ</em>) + sin²(<em>θ</em>) = 1

Multiply through both sides by 1/cos²(<em>θ</em>) to get an alternate form of the identity,

1 + tan²(<em>θ</em>) = sec²(<em>θ</em>)

Solve for tan(<em>θ</em>) (which we know is positive):

tan(<em>θ</em>) = √(sec²(<em>θ</em>) - 1) = 2√2

Right away, we get

cot(<em>θ</em>) = 1/tan²(<em>θ</em>) = 1/(2√2) = √2/4

Since sec(<em>θ</em>) = -3, it follows that cos(<em>θ</em>) = -1/3.

Then

tan(<em>θ</em>) = sin(<em>θ</em>)/cos(<em>θ</em>)   ==>   sin(<em>θ</em>) = 2√2 × (-1/3) = -2√2/3

and so

csc(<em>θ</em>) = 1/sin(<em>θ</em>) = -3/(2√2)

6 0
3 years ago
Please help I don’t understand
Crazy boy [7]

Answer: 28.26 inches

Step-by-step explanation: C = 2(pie)r or (pie)d

pie rounds to 3.14 the diameter is 9 in. soooooooo. 28.26 in. I don't know if this answer needs to be rounded by there. Have a great day. :)

5 0
3 years ago
How does the sign of a affect the domain and range of ()=?f of , open x close . equals eh , x squared , question mark
Ludmilka [50]

Answer:

(See explanation for further details).

Step-by-step explanation:

The sign does not affect the domain, as second-order polynomials are continuous functions. Nonetheless, the sign affect the range of function in the sense that elements can be lesser and equal to zero (a < 0) or greater and equal to zero (a > 0).

6 0
3 years ago
Help meeeeeeeeeeeeee
blagie [28]

Answer:

perimeter= 2(l+b)

=2(36+23)

=118m

area =l×b

=36×23

=828m²

8 0
3 years ago
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