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Mandarinka [93]
2 years ago
10

If sina =3÷5 and cos b=5÷13 find value of sinb + cos a​

Mathematics
1 answer:
BaLLatris [955]2 years ago
7 0

Answer:

Step-by-step explanation:

Hope this helps u !!

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At 3:30 in the afternoon in mid-September the Kimball Tower casts a shadow about 290 feet long when the sun's rays come down at
ioda

Answer:

203 feet.

Step-by-step explanation:

Please find the attachment.

Let h represent the height of the building.

We have been given that at 3:30 in the afternoon in mid-September the Kimball Tower casts a shadow about 290 feet long when the sun's rays come down at an angle about 35 degrees above the horizontal.    

We know that tangent relates opposite side of a right triangle to its adjacent side.

\text{tan}=\frac{\text{Opposite}}{\text{Adjacent}}

Upon substituting our given values in above formula, we will get:

\text{tan}(35^{\circ})=\frac{h}{290}

290*\text{tan}(35^{\circ})=\frac{h}{290}*290

290*0.70020753821=h

h=290*0.70020753821

h=203.0601860809

h\approx 203

Therefore, the building is approximately 203 feet high.

 

3 0
3 years ago
Solve for b.<br> 2/3+5=20-b
xenn [34]
The answer is B=14 1/3
6 0
2 years ago
Los 800 am termómetro marca 2°C. De las 8 am a las 11 am baja a razón do 3C por hora y de 11 am 12pm sube a razón
Marta_Voda [28]

Answer:

28454582855%555$ ni semoga bener jawabannya

6 0
3 years ago
What is 13 nickels combined with 6 dimes?
Setler [38]
125 = 6 dimes = 60 and 13 nickles = 65

60+65= 125

Hope i was the brainliest asnwer.
6 0
3 years ago
19 ft 17ft 19 ft Volume =​
Elis [28]

Answer:

1,022.83 ft³

Step-by-step explanation:

volume= ⅓×½××19×17×19 = 1,022.83 ft³

3 0
3 years ago
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