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fiasKO [112]
3 years ago
11

I need help finding the x

Mathematics
2 answers:
sweet [91]3 years ago
7 0

Answer:

<h2><em><u>ᎪꪀsωꫀᏒ</u></em></h2>

x= 11

Step-by-step explanation:

5x-10=45

5x=45+10

5x= 55

x= 55/5

x= 11

mote1985 [20]3 years ago
7 0

Answer:

the answer is x=11......

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Radda [10]

Answer:

The answer is 2 2/5

5 0
3 years ago
Determine the slope of the line 6x+3+10=0
kvasek [131]

Answer:

x=-5

Step-by-step explanation:

6x+3+10=0

6x+30=0

6x=-30

x=-30/6

x=-5

5 0
3 years ago
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3 years ago
Jessica weighs 10 less than three times as much as her little sister. If x represents her sister's weight, what is an expression
IrinaK [193]

Answer:

Step-by-step explanation:

J=3x-10

We are told Jessica weighs 10 less than 3 times her sister’s weight and told that her sister’s weight was x.

8 0
3 years ago
given: sin theta= 2/3 and theta is in the second quadrant; evaluate the following expression. sin2theta
andre [41]

The value of \sin(2\theta) is -\frac {-4\sqrt 3 }9

<h3>Sine ratio </h3>

The sine ratio is given as:

\sin(\theta) = \frac23

<h3>Trigonometry</h3>

In trigonometry, we have the following ratio

\sin^2(\theta) + \cos^2(\theta) = 1

Substitute \sin(\theta) = \frac23 in the above equation

\frac 23 + \cos^2(\theta) = 1

Collect like terms

\cos^2(\theta) = 1 -\frac 23

Evaluate

\cos^2(\theta) =\frac 13

Take square roots

\cos(\theta) =\pm\frac 1{\sqrt 3 }

Rationalize

\cos(\theta) =\pm\frac {\sqrt 3 }3

From the question, \theta is in the second quadrant, and cosine is negative.

So, we have:

\cos(\theta) =-\frac {\sqrt 3 }3

In trigonometry, we have:

\sin(2\theta) = 2\sin(\theta)\cos(\theta)

So, we have:

\sin(2\theta) = 2\times \frac 23 \times -\frac {\sqrt 3 }3

\sin(2\theta) =  -\frac {-4\sqrt 3 }9

Hence, the value of \sin(2\theta) is -\frac {-4\sqrt 3 }9

Read more about trigonometry ratios at:

brainly.com/question/10417664

7 0
2 years ago
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