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Arlecino [84]
4 years ago
13

Use the fundamental identities to fully simplify the expression

Mathematics
2 answers:
Lyrx [107]4 years ago
6 0

Hey!

Hope this helps... And we're super sorry that no answered your question...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3sin^3 x * csc(x) + cos^2 x + 2cos(-x) * cos(x) = ?

3sin^3 x * (1/sin) + cos^2 x + 2cos(x) * cos(x) = ? We know 2cos(-x) = 2cos(x) because of the opposite angle theorem: cos(-x) = cos(x)

3sin^2 x + cos^2 x + 2cos(x) * cos(x) = ?

3sin^2 x + cos^2 x + 2cos^2 x = ?

sin^2 x + cos^2 x + 2cos^2 x = ?

3sin^2 x + 3cos^2 x = ?

3 (sin^2 x + cos^2 x) = ?

3 * 1 = ?

= 3

Thepotemich [5.8K]4 years ago
3 0
Hello here is a solution :

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The ramp shown in the diagram has a rise of 225 cm and it makes an angle 40° with the floor.
Kazeer [188]

The length of the ramp calculated using Pythagoras is approximately 350 cm

From the diagram attached :

  • Height of ramp = opposite = 225 cm

  • Angle of inclination, θ = 40°

Using Pythagoras ; the length of the ramp can calculated as follows :

Sin θ = opposite / hypotenus

Sin 40° = 225 / hypotenus

Cross multiply

Hypotenus × 0.6427876 = 225

Divide both sides by 0.6427876 to isolate the hypotenus

Hypotenus = 225 / 0.6427876

Hypotenus = 350.03786 cm

Therefore, the length of the ramp which is the hypotenus is approximately 350 cm

Learn more : brainly.com/question/10040532

6 0
3 years ago
Sofia's batting average is 0.022 higher than Joud's batting average. Joud has a batting average of 0.169
IgorLugansk [536]

Answer:

0.191

Step-by-step explanation:

S = Sofia's batting average

J = Joud's batting average

S=?

J=0.169

S = 0.022 + 0.169

S = 0.191

5 0
3 years ago
Read 2 more answers
Work out an estimate for √4.92+3.18x7.31
madam [21]

<em>Answer:</em>

25.4639073013

Rounded is 25.4

<em>Have a beautiful day! </em>v(⌒o⌒)v♪

<em />

6 0
3 years ago
Here Brainliest answer this correctly
Maru [420]
8c=98
Hope it helps
5 0
3 years ago
The whole problem in the picture sorry
abruzzese [7]

Answer:

105

Step-by-step explanation:

-R and C are congruent

-B and S are congruent

- That means T and A are congruent

So that means C=19 B= 56 and A= 105

remember a triangle has 180 degrees

each of those marks represent congruent figures and angles.

3 0
3 years ago
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