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Galina-37 [17]
3 years ago
7

Calcular: E = (sec245o + tg45o) ctg37o - 2cos60o

Mathematics
1 answer:
Vlada [557]3 years ago
7 0

Answer:

-2.813

Step-by-step explanation:

Se simplifica inicialmente la fórmula en términos de las funciones trigonométricas fundamentales (Initially, the formula is simplified in terms of fundamental trigonometric functions):

(\sec 245^{\circ} + \tan 45^{\circ} )\cdot \cot 37^{\circ} - 2\cos 60^{\circ}

\left(\frac{1}{\cos 245^{\circ}}+\frac{\sin 45^{\circ}}{\cos 45^{\circ}}  \right)\cdot \left(\frac{\cos 37^{\circ}}{\sin 37^{\circ}} \right) - 2\cdot \cos 60^{\circ}

(-2.366 + 1 )\cdot (1.327) - 1

-2.813

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musickatia [10]

Answer:

I believe the answer is D. Hope this helps

Step-by-step explanation:

4 0
3 years ago
Please can some help me in this?
tino4ka555 [31]

Answer:

n = 70

Step-by-step explanation:

14 * x < 80

x = 6 won't work

14 * 6 = 84 which beyond the boundry.

14 * 5 = 70 which is less than 80 and is divisible by 14

14 * 3 = 42

70 does not have a 3 in it.

So the largest number that has 14 in it and is less than 80 is 70

5 0
3 years ago
A landscaper receives a discount on each plant purchased. The original price of each plant is x dollars. The landscaper purchase
prisoha [69]

Answer:

$4

Step-by-step explanation:

Discount is a form of consideration in price or amount given to a customer on a sale of goods. It can be deduced from the question that;

The original price of each plant = $x

Number of plants purchased = 20

Price of the number of plants purchased without discount = $20x

Amount paid for the 20 plants with discount = $(20x - 80)

Thus,

The discount on the 20 plants = $80

Discount on each plant = \frac{total discount on plants}{number of plants purchased}

                                       = \frac{80}{20}

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Discount on each plant = $4

Therefore, each plant was discounted by $4.

7 0
2 years ago
M= 1/2 and point : (4,-3) <br><br> Please help I will give you brainless
Vlad1618 [11]

Answer:

y=1/2x-5

Step-by-step explanation:

We have slope so we just need to find the y intercept.

slope intercept formula is

y=mx+b

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(b) is y int

y=1/2x+b

now apply our given x and y values (4 & -3)

-3=1/2(4)+b

simplify

-3=2+b

subtract 2 from each side

-5=b

put that into our equation

y=1/2x-5

6 0
2 years ago
eduardo took a survey to find out how many students in his school have a pet, there are 1,000 students in the school. 20% of the
nekit [7.7K]

Answer:

200

Step-by-step explanation: Sorry If wrong!

6 0
2 years ago
Read 2 more answers
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