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KATRIN_1 [288]
2 years ago
5

WILL MARK BRAINLIEST IF CORRECT PLEASE HELP

Mathematics
1 answer:
Romashka [77]2 years ago
3 0

Answer:

\frac{4\sqrt{7}}{7} \text{ and } \frac{3\sqrt{7}}{7}

Step-by-step explanation:

if \sec x = \frac{4}{3}, then that means that it is the angle of a right triangle with the hypotenuse equal to 4 and one of the legs (specifically the adjacent leg) equal to 3, since sec(x) is defined as hypotenuse over the adjacent side.

The other leg (specifically the opposite one) will be equal to \sqrt{16-9} = \sqrt{7} by the pythagorean theorem, so csc(x) = hypotenuse over opposite side = \frac{4}{\sqrt{7}}=\frac{4\sqrt{7}}{7}.

cot(x) is defined as adjacent over opposite, which is equal to \frac{3}{\sqrt{7}}=\frac{3\sqrt{7}}{7}

That means that the first option, the leftmost one, is correct.

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A 20% solution of fertilizer is to be mixed with a 50% solution of fertilizer in order to get 180 gallons of a 40% solution. How
anyanavicka [17]

Answer: 60 gallons of the 20% solution and 120 gallons of the 50% solution should be mixed.

Step-by-step explanation:

Let x represent the number of gallons of 20% solution that should be mixed.

Let y represent the number of gallons of 50% solution that should be mixed.

A 20% solution of fertilizer is to be mixed with a 50% solution of fertilizer in order to get 180 gallons of a 40% solution. This means that

0.2x + 0.5y = 0.4×180

0.2x + 0.5y = 72- - - - - - - - - - - -1

Since the total number of gallons is 180, it means that

x + y = 180

Substituting x = 180 - y into equation 1, it becomes

0.2(180 - y) + 0.5y = 72

36 - 0.2y + 0.5y = 72

- 0.2y + 0.5y = 72 - 36

0.3y = 36

y = 36/0.3

y = 120

x = 180 - y = 180 - 120

x = 60

4 0
3 years ago
Kate made 180 ounces punch for a party. She served the punch in 8-ounce cups. How many full cups can she fill
SIZIF [17.4K]
Si tiene 180 onzas y las sirve en tazas de 8 onzas divide la cantidad entre el numero de tazas para obtener que ella puede servir 22.5 tazas aproximadamente.
8 0
3 years ago
Can someone help me with problem please? It’s special right triangle: decimal answers (Round to the nearest tenth)
DochEvi [55]

Answer:

h= 4.6, c=7.1

Step-by-step explanation:

First you need to know in a 30 60 90 triangle the sides ratios are x, 2x and x√3, and for 45 90 45 it is x, x and x√2

so <em>h</em> is 8/√3 and you rationalize the bottom so it becomes 8√3/3. when you solve this and round to nearest hundred it becomes 4.6. for the second one, it is 5√2 and when you solve this and round, it becomes 7.1

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3 years ago
Find the Volume for number 1 , 2 and 3
Usimov [2.4K]
For the first one I got : 
V = 165/8
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(B)11/2 * (h)15/4 
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Pls correct me if im wrong!! :)
3 0
3 years ago
Please answer thanks
nirvana33 [79]

Answer:

10

Step-by-step explanation:

it's kinda hard to explain

3 0
2 years ago
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