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Schach [20]
3 years ago
6

Verify the Identity!!

Mathematics
1 answer:
Elanso [62]3 years ago
6 0

Answer:

Check the proof below

Step-by-step explanation:

try to verify from RHS to LHS

(Tan a + tan b) / (tan a - tan b)

= (sin a / cos a + sin b /cos b) / ( sin a/ cos a - sin b/ cos b)

= (sin a cos b + cos a sin b)/ (sin a cos b - cos a sin b)

= sin (a+b) / sin (a-b)

Fyi

sin(A+B) = sinAcosB+cosAsinB

sin(A-B) = sinAcosB-cosAsinB

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If Heidi is hired by company A, she would be paid $14.60 an hour. If she is hired by company B, she would be paid $16.60 an hour
Alinara [238K]

If Heidi only gets paid when she is talking to clients, she will be working

... 9 × (40 min/60 (min/h)) = 6 h

per day.

Her $2.00 difference in pay per hour will result in a difference in pay per day of

... $2.00/h × 6 h/day = $12/day

Company B will pay Heidi $12 more for a day's work.

5 0
4 years ago
Find the total surface area of this cuboid.<br> 6cm<br> 5cm<br> 4cm
shusha [124]

Answer:

148cm^2

Step-by-step explanation:

The formula for surface area of a rectangular prism is 2(hl)+2(hw)+2(wl).

we just plug in the values.

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= 2(30) + 2(24) + 2(20) then simplify

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6 0
3 years ago
Write the equation of a circle with a center at<br> (2, -9) and a radius of 7<br> Helpppp
siniylev [52]

Answer:

x^2+y^2+14y+36=0

Step-by-step explanation:

Given that,

Center = (2,-9)

Radius of the circle, r = 7

We need to find the equation of a circle with a center at  (2, -9) and a radius of 7. It can be given by :

(x-h)^2+(y-k)^2=r^2

Put h = 2, k = -9 and r = 7 So,

(x-2)^2+(y-(-9))^2=7^2\\\\x^2+4-4x+y^2+81+18y=49\\\\x^2+y^2+14y+85-49=0\\\\x^2+y^2+14y+36=0

Hence, this is the required solution.

5 0
3 years ago
Could anyone find the answer for this?
lakkis [162]

Answer:

63cm

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8 0
3 years ago
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Which numbers are solutions to the inequality 2x – 1 &gt; x + 2? Check all of the boxes that apply.
Natasha_Volkova [10]

Answer:

Any number greater than 3.

Step-by-step explanation:

To find the answers to this question, start by solving the inequality for x.

2x - 1 > x + 2

x - 1 > 2

x > 3

Using this, we now know that any number that is greater than 3 would work for this inequality.

7 0
4 years ago
Read 2 more answers
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