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serious [3.7K]
3 years ago
13

8x-29 + 6x-11 + 3x-1 solve for x

Mathematics
2 answers:
brilliants [131]3 years ago
7 0

Answer:

8x-29 + 6x-11 + 3x-1=180

Answer: 180

Step-by-step explanation:

elena-s [515]3 years ago
5 0

Answer:

Step-by-step explanation:

I need help on this too.

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If (cos)x= 1/2 what is sin(x) and tan(x)? Explain your steps in complete sentences.
Natasha_Volkova [10]
The correct answers are:
1) sin(x) = \frac{ \sqrt{3} }{2}
2) tan(x) = \sqrt{3}

Explanation:
Given:
cos(x) =  \frac{1}{2}

Step 1:
Since, according to the Trigonometric identity:
sin^2(x) + cos^2(x) = 1 -- (1)

Step 2:
Plug in the value of cos(x) in equation (1):
sin^2(x) + ( \frac{1}{2} )^2 = 1 \\ sin^2(x) + \frac{1}{4} = 1 \\ sin^2(x)  =  \frac{3}{4}

Step 3:
Take square-root on both sides:
\sqrt{sin^2(x)} =  \sqrt{\frac{3}{4}}

sin(x) = \frac{ \sqrt{3} }{2}

Now to find the tan(x), we would use the following formula:

tan(x) = \frac{sin(x)}{cos(x)} --- (2)

Plug in the values of sin(x) and cos(x) in equation (2):
tan(x) = \frac{ \frac{ \sqrt{3} }{2} }{ \frac{1}{2} }

Hence tan(x) = \sqrt{3}
6 0
3 years ago
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Solve: x + 6 = -11<br> May I please have help with this?!
klemol [59]

Answer:

x=-17

Step-by-step explanation:

subtract 6 from each side and simplify and you'll get -17

3 0
2 years ago
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Please help I’m stuck!!
jolli1 [7]

Answer:

130 milliliters.

Step-by-step explanation:

a drug has a ratio of 115mg:5ml. This is equivalent to 23mg:1ml. 3g=3000mg, so we divide 3000 by 23 to get 130.434783. That is how many milliliters are needed. We round it to get 130 mL.

3 0
3 years ago
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A n-faced regular polyhedron consists of 2n edges and (2n-4) vertices. Find n .
ira [324]

We could use Euler's polyhedron formula:

F=n\qquad\qquad\text{(Faces)}\\\\E=2n\qquad\qquad\text{(Edges)}\\\\V=2n-4\qquad\qquad\text{(Vertices)}\\\\\\V-E+F=2\\\\2n-4-2n+n=2\\\\-4+n=2\qquad|+4\\\\\boxed{n=6}



3 0
3 years ago
Can someone help asap
Nesterboy [21]

Answer:

1 is 65

2 is 52

3 is 13

Step-by-step explanation:

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3 years ago
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