Answer is 2 because it’s true
Answer:
Step-by-step explanation:
Using the difference formula for cosine and the exact values
cos45° = sin45° = 
, cos30° = 
, sin30° = 
cos(a - b) = cosacosb + sinasinb
Note 15° = 45° - 30°, thus
cos15°
= cos(45 - 30)°
= cos45°cos30° + sin45°sin30°
= ( × ) + ( × )
= 
+ 
=
21(2-x)+12x=44 21x2=42 21x-x=21x
42-21x+12x=44 -21x + 12x= -9x
42-9x=44
-42 -42
9x=2 9x/9=x 2/9=4.5
x=4.5
Answer:
(8s + 22) ≤ 60
Step-by-step explanation:
Let the number of shirts Florencia bought = s
Cost of one shirt = $8
Therefore, total cost of the 's' shirts= $8s
She bought a jeans for $22 and rest amount she spent on shirts.
Total expenditure = $(8s + 22)
Since, she can not exceed her expenditure beyond $60.
So the inequality will be,
(8s + 22) ≤ 60
<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
