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Allisa [31]
3 years ago
5

HELP PLEASE!!!!!!!! thank u in advance :))

Mathematics
1 answer:
zhenek [66]3 years ago
6 0

Answer:

x=7\\\\y=16

Step-by-step explanation:

First, you must observe the figure attached.

You can identify that:

2x+5=x+12

Then, you can solve for the variable "x" in order to find its value. Then, you get that this is:

2x-x=12-5\\\\x=7

You can also identify in the figure that:

y-4=x+5

Since you know the value of "x", you can substitute it into the equation:

y-4=(7)+5

Finally, you must solve for the variable "y" in order to find its value. So, you get:

y-4=(7)+5\\\\y-4=12\\\\y=12+4\\\\y=16

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Square root of -49 in terms of i
natita [175]

Answer:

7i

Step-by-step explanation:

We know that  i = √-1

Then solving the given:

  • √-49 = √49×(-1) = √49 × √-1 = 7×√-1 = 7i

So the answer is:

  • √-49 = 7i
3 0
4 years ago
Write exponent and bases of (-5)raise to power7 and (-9/7)raise to power6​
AleksAgata [21]

Answer:

The base of -5 raise to 7 is -5 and its exponent is 7. The base-9/7 raise to the power of 6 is -9/7 and it's exponent is 6.

Step-by-step explanation:

6 0
3 years ago
How do I solve the equation in an interval from 0 to 2π ? 9 cos 2t = 6​
Ivahew [28]

9\cos(2t)=6\implies\cos(2t)=\dfrac23

Using the fact that cos is 2π-periodic, we have

\cos(2t)=\dfrac23\implies2t=\cos^{-1}\left(\dfrac23\right)+2n\pi

That is, \cos(\theta+2n\pi)=\cos\theta for any \theta and integer n.

\implies t=\dfrac12\cos^{-1}\left(\dfrac23\right)+n\pi

We get 2 solutions in the interval [0, 2π] for n=0 and n=1,

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4 0
3 years ago
What are some solutions of the question 3x^2-5x+2=0?
Varvara68 [4.7K]

Answer:

Step-by-step explanation:

3x²-5x+2=0

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3x(x-1)-2(x-1)=0

(x-1)(3x-2)=0

either x-1=0 which gives x=1

or 3x-2=0

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7 0
3 years ago
What is the missing constant term in the perfect square that starts with x^2+2x
DENIUS [597]

Answer:

  1

Step-by-step explanation:

The constant term in a perfect square trinomial with leading coefficient 1 is the square of half the coefficient of the linear term.

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The missing constant term is 1.

3 0
3 years ago
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