The expression for the height of the stand is:
ac = 3in*tan(50°).
<h3>
How to get the height of the charging stand?</h3>
We have the right triangle abc.
We know that:
- c = 90°
- b = 50°
- bc = 3 inches.
We want to get the length of ac.
Notice that ac is the opposite cathetus to angle b, which measures 50°.
Then we can use the trigonometric relation:
tan(a) = (opposite cathetus)/(adjacent cathetus).
Then we will have:
tan(50°) = ac/bc
We can replace bc by its length:
tan(50°) = ac/3in
3in*tan(50°) = ac.
This is the expression for the height of the stand.
If you want to learn more about right triangles, you can read:
brainly.com/question/2217700
neolocality
the setting up of a residential pattern apart from both sets of parents mt
Answer:
there are 1/4 cups of Super Grain Cereal in the mixture
Explanation:
Super Grain cereal provides 240 calories per cup. Thus, for s cups of Super Grain cereal, there will be 240s calories
Crunchy Grain cereal provides 210 calories per 3/4 cups. Thus, 210 ÷ 3/4 per cup.
210 ÷ 3/4 = 280 calories, For c cups of Crunchy Grain cereal, there will be 280c calories
Jennifer mixes c cups of Crunchy Grain cereal, having 280 calories and s cups of Super Grain cereal, having 240 calories to get a final 1 cup mixture containing 270 calories, which can be expressed mathematically as:
280c + 240s = 270 ------- eqn(1)
Since, s cups of Super Grain cereal and c cups of Crunchy Grain cereal equals 1 cup, of the final mixture
c + s = 1 ------- eqn(2)
from eqn(2),
c = 1 - s
substitute c = 1 - s into eqn(1)
280(1 - s) + 240s = 270
280 - 280s + 240s = 270
- 40s = 270 - 280
-40s = -10
s = (-10)/(-40)
s = 1/4
Therefore, there are 1/4 cups of Super Grain Cereal in the mixture
Ans B
(Hope this helps can I pls have brainlist (crown)☺️)
