Answer:
B. 50°
Step-by-step explanation:
Use the tangent ratio, then use the inverse to find the angle of elevation, X°
Answer:
0
Step-by-step explanation:
-2 minus -2 = 0
9 minus -5 = 14
0 divided by 14 = 0
Answer:
- 64 gallons 30%
- 96 gallons 55%
Step-by-step explanation:
The amount of each brand can be found by writing and solving an equation that makes use of the given relations.
<h3>Setup</h3>
Let x represent the quantity of 55% pure antifreeze needed in the mixture. Then the quantity of the 30% brand is (160-x). The amount of pure antifreeze in the mixture is ...
0.55x +0.30(160 -x) = 0.45(160)
<h3>Solution</h3>
Subtracting 0.30(160), we have ...
x(0.55 -0.30) = 160(0.45 -0.30)
x = 24/0.25 = 96 . . . . . simplify, divide by the coefficient of x
96 gallons of the 55% brand, and 64 gallons of the 30% brand must be used.
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Read more about mixture problems here:
brainly.com/question/26751698
Answer:
um Volume = length x width x height so 75.6 i think
Answer:
Step-by-step explanation:
The terms of the arithmetic sequence are...
-15, -6, 3, 12, ...
The first term is
a_1=-15
The common difference is
The equation for the nth term is given by;
We substitute the values into the formula to get;
