The Sum of 8 and 7 doubled

Mathematics

2 answers:

Zina [86]2 years ago

6 0

30 because you add 8 and 7 then add it by itself or multiply it by 2

coldgirl [10]2 years ago

3 0

Well, seven plus eight is fifteen. And fifteen plus fifteen in thirty, so 30 is your answer. ( :

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Find the value of y in the solution to the system of equations shown. 3y=18x+6 y=2x+14

ololo11 [35]

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Step-by-step explanation:

because I solved it and got 14 ......

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2 years ago

Trigonometry

quester [9]

Answer:

$\frac{9 + 2 \sqrt{3} }{3} \\$

Step-by-step explanation:

$\cosec(30) + \cosec(60) + \cosec(90) \\ \\ = 2 + \frac{2}{ \sqrt{3} } + 1 \\ \\ = \frac{2 \sqrt{3 } + 2}{ \sqrt{3} } + 1 \\ \\ = \frac{2 \sqrt{3} + 2 + \sqrt{3} }{ \sqrt{3} } \\ \\ = \frac{3 \sqrt{3} + 2}{ \sqrt{3} } \\ \\ = \frac{3 \sqrt{3} + 2}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \\ \\ = \frac{9 + 2 \sqrt{3} }{3}$

4 0

3 years ago

Read 2 more answers

Please help me and answer correctly!

LenKa [72]

A^-b = 1/a^b
a^b / a^c = a^b-c
a^c / b^c =(a/b)^c

3 0

3 years ago

Anybody know the answer?

dsp73

So since its a right triangle, we can use the pythagorean theorem, which is $leg^2+leg^2=hypotenuse^2$ . Since we know that 2 and 3 are our legs and x is our hypotenuse, we can solve the equation as such: