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alexandr402 [8]
3 years ago
14

Can someone please help me

Mathematics
2 answers:
anzhelika [568]3 years ago
6 0

Answer:

I and II

Step-by-step explanation:

I: 10 is less than or equal to 2(11) - 1

10 <= 22 - 1

10 <= 21

10 is less than or equal to 21

solution

II: 10 is less than or equal to 2(8) - 1

10 <= 16 - 1

10 <= 15

10 is less than or equal to 15

solution

III: 10 is less than or equal to 2(3) - 1

10 <= 6 - 1

10 <= 5

10 is not less than or equal to 5

not a solution

denpristay [2]3 years ago
3 0
I think the answer would be none
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Plz help asap......................................
ziro4ka [17]

Option B:

Law of cosine, two sides and the included angle are known.

Solution:

Let us first know the law of cosines and law of sines.

Law of cosine:

If we know the sides a, b and the included angle θ, then we can find the third side c. This is known as the law of cosine.

c^2=a^2+b^2-2abcos\theta

Law of sine:

The sides of a triangle are to one another  in the same ratio as the sines of their opposite angles.

$\frac{a}{sinA} =\frac{b}{sinB} =\frac{c}{sinC}

Given ∠P and the sides r, q are known.

<u>To find the value of p:</u>

Option A: Law of cosines, all sides are known.

It is false by the above definition of law of cosine.

Option B: Law of cosine, two sides and the included angle are known.

It is true by the above definition of law of cosine.

Option C: Law of sines, all sides are known.

It is false, because one angle is given in question.

Option D: Law of sines, two angles and the included side are known.

It is false, because two angles are not given.

Option B is the correct answer.

Hence the answer is "Law of cosine, two sides and the included angle are known".

7 0
3 years ago
Find the value of x
riadik2000 [5.3K]

Answer:

4√5

Step-by-step explanation:

Use Pythagorean theorem

a^2=21^2-19^2

a^2=441-19^2

a^2=441-361

a^2=80

a= √80

simplify

6 0
3 years ago
What is the solution to 3x^2 + 4x + 8 = 0?
Travka [436]

D) x = -2 ± 2i√5 / 3

7 0
3 years ago
Read 2 more answers
sally bought a hot pink motorized scooter for $5 000. online , she read that .the scooter is reduced each year by about 18% how
saveliy_v [14]
You need to set it up like this: Initial amount ( 1 - Depreciation Rate) ^ Time in years. So: 5000(1-0.18)^4 = 5000(0.82)^4=2260.6088, rounded to the nearest cent is $2260.61.
7 0
3 years ago
Leon has 16 fewer quarters than dimes. He has 34 quarters. Use the five-step problem-solving plan. How many dimes does Leon have
makvit [3.9K]
Leon has a grand total of 50 dimes hope this helps.
3 0
3 years ago
Read 2 more answers
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