Answer:
see explanation
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the 2 given angles from 180 for B
B = 180° - (90 + 39)° = 180° - 129° = 51°
Using the tangent and sine ratios in the right triangle for b and c
tan39° = 
= 
Multiply both sides by b
b × tan39° = 27 ( divide both sides by tan39° )
b = 
≈ 7.5 ( to the nearest tenth )
sin39° = 
= 
Multiply both sides by c
c × sin39° = 27 ( divide both sides by sin39° )
c = 
≈ 28.0 ( to the nearest tenth )
Answer:
the option number 4
Step-by-step explanation:
Hi love,
so the first step is to subtract
4/3x+7=-5
4/3x=-5-7
4/3x=-12
Volume of the conical tank = 1/3pi*r^2 * h = 1/3pi * (10/2)^2 * 15 = 125pi cubic feet or 392.7 cubic feet = 392.7 * 7.48 gallons = 2937 gallons.
Volume of the hemispherical tank = 2/3pi * r^3 = 2/3pi * (5.5)^3 = 348.5 cubic feet = 348.5 * 7.8 gallons = 2606 gallons
Hence the conical tank will contain more chemicals
Answer
all 3 of those are not true
Step-by-step explanation:
Answer:
a. trapezoid
b. A= (a+b)/2 × h (base a times base b divided by 2 times the height)
c. 78.75
d. rectangle
e. l×w (length times width)
f. 133 (area on its own)
54.25 (area of rectangle minus the area of the
fire pit
