MATHEMATICS HIGH SCHOOL

PLEASE HELP 15 POINTSAn item costs $420 before tax, and the sales tax is $16.80 .
Find the sales tax rate. Write your answer as a percentage.

Answers

Answer 1

Answer:

Answer:

The sales tax is 4%

Step-by-step explanation:

hope this helps plz mark brainliest

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A helicopter hovers at an altitude that is 1000 feet above a mountain of altitude 5210 feet. A second, taller peak is viewed from both the mountaintop and the helicopter. from the helicopter, the angle of depression is 43, and the mountaintop, the angle of depression is 18 degree. how far apart are the mountain peaks? what is the altitude of the taller peak?

Answers

x - horizontal distance from peak to peak
y – difference between the altitudes of two peaks

Equations:
y/x = tan(17°)
(1100 – y)/x = tan(46°)

Solution:
y = (1100 tan(17°)) / (tan(17°) + tan(46°)) = 250.74 ft
x = y / tan(17°) = 820.12 ft

Horizontal distance from peak to peak is 820 ft.
Altitude of the taller peak is 5300 + 250 = 5550 ft.

The direct distance from peak to peak is √(x²+y²) = 857.6 ft.

Answer:

the altitude of the taller peak is equal to 5468.4 ft

Step-by-step explanation:

given,

altitude of the helicopter = 1000 ft

height of the mountain = 5210 ft

Angle of depression from helicopter = 43°

Angle of depression from mountain = 18°

$tan 18 = (h)/(s)$

$tan 43 = (1000-h)/(s)$

$(h)/(tan 18) = (1000-h)/(tan 43 )$

2.87 h = 1000 - h

3.87 h = 1000

h = 258.4 ft

Taller peak =

= 5210+258.4

= 5468.4 ft

the altitude of the taller peak is equal to 5468.4 ft

A jar contains 30 red marbles. 59 blue marbles. And 20 white marbles. You choose one marble from the jar at random. What is the theoretical probability of choosing a blue marble? A)20%
B)30%
C)50%
D)80%

Answers

The answer is .495 which rounds to 50%.

Which of the following best describes a three-dimensional solid made from a pile of similar circles that grow smaller as the solid gets taller until it reaches a point at the vertex?A . cylinder
B. cube
C. prism
D. cone

Answers

Your answer is D) Cone

Answer:

cone

Step-by-step explanation:

apeee

Given the parent functions f(x) = log3 (5x − 5) and g(x) = log3 (x − 1), what is f(x) − g(x)?. . a. f(x) − g(x) = log3 (4x − 4). b.f(x) − g(x) = log3 (4x − 6). c. f(x) − g(x) = log3 5. d. f(x) − g(x) = = log3 1/5.

Answers

$f ( x ) = log _(3) ( 5 x - 5 ), g ( x ) =log _(3) ( x - 1 ); \n f ( x ) - g ( x ) = log _(3)( 5 x - 5 ) - log _(3)( x - 1 ) = \n log _(3) (5(x-1))/(x-1) = log _(3) 5$
Answer: C ) f ( x ) - g ( x ) = log3 5

HELP PLEASE!A parallelogram with sides of 6 and 10 has an area of 30 sqrt of 2. Find the measure of the small angle of the parallelogram.

A.30
B.45
C.60

Answers

You can solve this problem by using trigonometry. There are two scenarios with a parallelogram with sides 6 and 10. Either the base is 6 or the base is 10. I did both cases and they gave the same results. The answer is B, 45 degrees. My work is shown below:

The correct answer is B.

stephanie has the same number of dimes and nickels. she has $6.10 in all. what an equation that you could use to find the number of dimes and nickes