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daser333 [38]
3 years ago
7

Find the value of x to the nearest tenth

Mathematics
2 answers:
mr Goodwill [35]3 years ago
5 0

Answer:

The opposite side x is 7

Step-by-step explanation:

Step one

From the given expression in the picture

We can estimate x by applying the

SOH CAH TOA rule on the triangle

Since we have one side and one angle given

step two

From the given picture we have

We have θ and adjacent side given

Hence we need to apply

tan θ= opposite/adjacent =

Tan 35°=x/10

Step three

From 4 figure table or calculator

tan 35° is 0.7

0.7=x/10

x=0.7*10

x= 7

uysha [10]3 years ago
4 0

Check the picture below.

make sure your calculator is in Degree mode.

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Answer:

6.8 percent or 6.8%

Step-by-step explanation:

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3 years ago
According to the Complex Conjugate Root Theorem, if a+bi is a root of a quadratic equation, then __blank__ is also a root of the
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Answer:

a-bi


Step-by-step explanation:

If a quadratic equation lx^2+mx+n=0 has one imaginary root as a+bi then the other root is the conjugate of a+bi = a-bi

Because we have l, m and n are real numbers and they are the coefficients.

Sum of roots = a+bi + second root = -m/l

When -m/l is real because the ratio of two real numbers, left side also has to be real.

Since bi is one imaginary term already there other root should have -bi in it so that the sum becomes real.

i.e. other root will be of the form c-bi for some real c.

Now product of roots = (a+bi)(c-bi) = n/l

Since right side is real, left side also must be real.

i.e.imaginary part =0

bi(a-c) =0

Or a =c

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Hence proved.


3 0
3 years ago
What is the value of X? (giving brainliest and thanks to all!)
Jlenok [28]

Answer:

I believe it is A

Step-by-step explanation:

I dont quite remember the formula, but I belive that 30 would be correct because if im remembering correctly the formulas are "a + b = c" and "c - (a/b) = (a/b)

a/b = a or b, depending what they give you

4 0
2 years ago
Read 2 more answers
What is this helppp 1/2 + 1/5
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Answer:

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4 0
2 years ago
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Which shape listen below will result from cross section b?
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