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Effectus [21]
3 years ago
5

Which out of the 2 choices is correct ?

Mathematics
2 answers:
tiny-mole [99]3 years ago
7 0

Answer:

sinB is correct

Step-by-step explanation:

Calculating each of cos/ sin for ∠B

cosB = \frac{adjacent}{hypotenuse} = \frac{6}{3\sqrt{5} } = \frac{2}{\sqrt{5} } and

\frac{2}{\sqrt{5} } × \frac{\sqrt{5} }{\sqrt{5} } = \frac{2\sqrt{5} }{5} ≠ \frac{\sqrt{5} }{5}

--------------------------------------------------------------------------------

sinB = \frac{opposite}{hypotenuse} = \frac{3}{3\sqrt{5} } = \frac{1}{\sqrt{5} } and

\frac{1}{\sqrt{5} } × \frac{\sqrt{5} }{\sqrt{5} } = \frac{\sqrt{5} }{5}

12345 [234]3 years ago
5 0

Answer:sinB is correct

Step-by-step explanation

Step-by-step explanation:

Calculating each of cos/ sin for ∠B

cosB =  =  =  and

×  =  ≠

--------------------------------------------------------------------------------

sinB =  =  =  and

×  =

Read more on Brainly.com - brainly.com/question/12994350#readmore

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Please Help!!!!!! it's due this morning
zhuklara [117]

Answer:

Check the solution in both equations. The solution is ( − 1, 2). Solve the system by graphing: {− x + y = 12 x + y = 10 . Solve the system by graphing: {2x + y = 6 x + y = 1 . In all the systems of linear equations so far, the lines intersected and the solution was one point.

Hope it helps!!!

6 0
2 years ago
the ratio of men to women working for a company is 4 to 7. If there are 286 employees total, how many men work for the company?
patriot [66]

Answer:  104 men work for the company

Step-by-step explanation:

    man = 4            x

woman = 7--------- you don't need these so i cross it out.

------------------------

    total = 11         286  

so you get 1144 - 11x

then divide 1144 by 11 and you get x = 104          

3 0
3 years ago
Can someone help me with this question please.
ozzi

Answer:

x=88° a=+3 b=4a-3

Step-by-step explanation:

as triangles ADE and BCE are congruent by sss axiom

so correponding angles are equal

i.e<AED = <BEC

and <DAE =90-60

=30°

so

62°+x+30°=180°

therefore x=88°

5 0
3 years ago
How to get 1/2x 2 1/2??
BabaBlast [244]

Answer:

1 1/4

Step-by-step explanation:

You are multiplying a fraction by a mixed number so you have to turn the mixed number into an improper fraction.

2 1/2 -- to do this you have to multiply the denominator by the whole number, then add the numerator.

2*2= 4   4+1=5

2 1/2 = 5/2

Then, you multiply normally

1/2 x 5/2 = 5/4

5/4= 1 1/4

So, you answer would be 1 1/4

Hope this helps!!

-Ketifa

(Can I get brainliest?)

8 0
2 years ago
The surface area of a cube is 328.56 square inches. How long are it’s sides?
gizmo_the_mogwai [7]

Answer:

7.4 in

Step-by-step explanation:

Surface area of a cube = 6s²

(where s is the side length)

Given:

  • SA = 328.56 in²

Substituting the given value into the formula and solving for s:

⇒ 328.56 = 6s²

⇒ 328.56 ÷ 6 = 6s² ÷ 6

⇒ 54.76 = s²

⇒ s = √54.76

⇒ s = 7.4 in

4 0
2 years ago
Read 2 more answers
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