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Pavlova-9 [17]
4 years ago
13

Plz help me me I will mark brainlest for correct answer with explanation​

Mathematics
1 answer:
Karo-lina-s [1.5K]4 years ago
7 0

Answer:

3,4

Step-by-step explanation:

r=b

Which is coded

to 3=4

Now you change to = to ,

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Calcular: E = (sec245o + tg45o) ctg37o - 2cos60o
Vlada [557]

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

7 0
3 years ago
Common factors of 28 and 40
Nady [450]
28: 1, 2, 4, 7, 14, 28

40: 1, 2, 4, 5, 8, 10, 20, 40

The common factors are 1, 2, and 4.

You can use a factor rainbow to help you find the factors (:
7 0
3 years ago
Solve by substitution or elimination<br> 4X – 3y = 7<br> 4x + y = 11
Simora [160]

Answer:

(5/2 , 1)

Step-by-step explanation:

4X – 3y = 7

4x + y = 11

———————

Multiply a -1 to the bottom equation to get the 4x as a negative so it cancels out.

4x - 3y = 7

-4x - y = -11

——————

-4y = -4

Divide by -4

y = 1

Substitute the value of y into one of the equations and solve

4x - 3(1) = 7

4x -3 = 7

4x = 10

Divide by 4

X = 10/4

Simplify by dividing by 2

x = 5/2

Therefore the answer is (5/2, 1 )

8 0
3 years ago
In a book shop, there are 12 new books on a table. 7 of the books are fiction and the rest are non-fiction. What fraction of the
3241004551 [841]

Answer:

Hi, hows life going?

Step-by-step explanation:

8 0
3 years ago
2. Find the Perimeter AND Area of the<br> figure below.<br> 5 in.<br> 6 in.<br> 8 in.<br> 9 in.
Katena32 [7]
Area: 64 in.
Perimeter: 102 in.
5 0
3 years ago
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