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Iteru [2.4K]
3 years ago
8

How to find the exact value of each trigonometric function without a calculator?

Mathematics
1 answer:
Goryan [66]3 years ago
5 0
Remember them is the best way to go.
draw the exact value triangles if you're unsure, but importantly, you just need to memorise these exact values.


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No association means the y-values increase as the x-values decrease. *<br><br> A.True<br> B.False
Citrus2011 [14]

Answer:

A.

Step-by-step explanation:

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7 0
3 years ago
Find the surface area of the prism.
LenKa [72]

Answer:

108

Step-by-step explanation:

triangles of the sides 3×4=12

5×8=40

4×8=32

3×8=24

add everything

6 0
3 years ago
The ground temperature at sea level is 60 degrees F. For every 100-foot increase in elevation, the temperature rises 1/10 of one
N76 [4]
<h3>Answer: B. 62 degrees fahrenheit</h3>

====================================================

Explanation:

x = elevation in feet

y = temperature in fahrenheit

The temperature goes up 1/10 = 0.1 degrees for every 100-foot increase of elevation. So the slope is 0.1/100 = 0.001, which tells us how fast the temperature is increasing. In other words, the temperature goes up 0.001 degrees each time the elevation goes up by 1 foot.

The ground temperature is 60 degrees, which is our starting temperature. It's the value of y when x = 0. Therefore, 60 is the y intercept.

We have a slope of m = 0.001 and a y intercept of b = 60. The equation y = mx+b becomes y = 0.1x+60

Now plug in x = 2000 to find the temperature at this elevation

y = 0.001x+60

y = 0.001*2000+60

y = 2+60

y = 62

7 0
3 years ago
Read 2 more answers
• Manuela has two boxes. The larger of the two boxes has dimensions of 15 cm
valkas [14]

Answer:

6500 cm^3.

Step-by-step explanation:

That would be the volume of the large box - the volume of the cube

= 15*25*20 - 10^3

= 7500 - 1000

= 6500 cm^3.

8 0
3 years ago
Kate and Melisa both went to the same store to buy eggs and bread for their families. Kate bought 3 cartons of eggs and 5 loaves
VMariaS [17]
Write an equation system based on the problem
For an instance, e stands for the price of a carton of eggs, and b stands for the price of a loaf of bread

"Kate bought 3 cartons of eggs and 5 loaves of bread for $30.07" could be written as 3e + 5b = 30.07 (first equation)
"Melissa bought 2 cartons of eggs and 2 loaves of bread for $14.74" could be written as 2e + 2b = 14.74 (second equation)

Solve the equation system using elimination method
Eliminate b to find e. To eliminate b, we should equalize the coefficient of b.
3e + 5b = 30.07 (multiplied by 2)
2e + 2b = 14.74 (multiplied by 5)
-------------------------------------------
  6e + 10b = 60.14
10e + 10b = 73.70
------------------------- - (substract)
-4e            = -13.56
   e            = -13.56/-4
   e            = 3.39

The price for a carton of eggs is $3.39
8 0
3 years ago
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