Anyone know what X equals to

Answers

Answer 1

Answer: the answer is 110, you are welcome

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If tanx = 0.75, find the value ofi. cos2x + sin2x
2tanx
ii.
for 0° < x < 90°
C0Sx-sinx
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Answers

Answer:

i. 31/25

ii. 1/5

Step-by-step explanation:

you know that tanx = 3/4, so you can also find that sinx = 3/5 and cosx = 4/5. Then you can use the double angle identities to find cos2x and sin2x: cos^2(x) - sin^2(x) + 2sinxcosx and substitute the givens to get 31/25. Then, cosx - sinx is obviously 1/5.

The diameter of circle C is 18 cm. Chord AD is the same length as a radius. Use this information, the diagram, and your experiences in geometry this semester to answer these questions. a) what are the measures of the angles BDA and DBA?. b) What is the sine of angle DBA? c) Find the length of arc AB to the nearest hundredth. d) How does the length of arc AD compare to the length of arc AB? e) If FE = 1/2 BD, then what is the degree measure of arc EF?

Answers

A ) ∠ BDA = 60°
∠DBA = 30°
B ) sin (∠DBA ) = sin 30° = 1/2
C ) arc AB = 1/3 · 2 r π = 1/3 · 18 π = 6 π = 6 · 3.14 = 18.84 cm
D ) arc AD : arc AB = 1 : 2
E ) Degree measure of an arc is equal to the measure of the central angle that intercepts the arc. The degree measure is 60° ( F E = 9 cm, r = 9 cm ).

Please help, I don’t understand at all.

Answers

In the given triangle ,
4x +13 +6x+ 2 = 14x-13 ( exterior angle property )
10x +15=14x-13
10x-14x=-13-15
-4x=-28
=> x = 7
Hope it helps
:)

Name a number that is a rational number, but not an integer.
Justify your response.

Answers

3.1416 is a rational number.

It can be written as 31,416 / 10,000 .

Since you can write it as a fraction with whole numbers, it's rational.
That's actually the definition of a rational number.

==> ANY number that you can write down completely
using digits is a rational number !

2.5 because rational numbers can be written as fractions, but integers written as fractions have to be able to be written over 1. For example 3 is an integer because 3 = 3/1. But 2.5 isn't an integer because 2.5 = 5/2.

Dan's school is planning a field trip to an art museum, Bus company A charges a $60 rental fee plus $4 pestudent. Bus company B charges $150 plus $2 per student. How many students would have to go for the
cost to be the same?
A 90 students
B 50 students
C 45 students
D 15 students