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VashaNatasha [74]
3 years ago
13

If BC = 6x-16 and CD = 4x + 10, then x = ?

Mathematics
1 answer:
Airida [17]3 years ago
5 0

Answer:

13

Step-by-step explanation:

BC and CD are equal, so both equations will equal eachother.

6x - 16 = 4x + 10

     +16         +16

------------------------

    6x = 4x +26

    -4x  -4x

------------------------

      2x = 26

      ----   -----

       2      2

        x = 13

Hope this helped.

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Artist 52 [7]

Answer:

Therefore it is possible to find the circumference and area of a circle if we are given the radius or diameter of the circle.

Step-by-step explanation:

i) to find the area of a circle or circumference the radius , r, is required.

ii) if we are given the diameter, d. then we have to find the radius, r, by dividing the diameter by 2, that is d  = \frac{r}{2}.

iii) area of the circle is given by A = \pi r^{2}

iv) circumference of the circle is given by C = 2\pi r

Therefore it is possible to find the circumference and area of a circle if we are given the radius or diameter of the circle.

7 0
3 years ago
Simplify the expression.
Marizza181 [45]
\bf \textit{Cofunction Identities}
\\ \quad \\
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\\ \quad \\ \quad \\
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\\ \quad \\ \quad \\
sec\left(\frac{\pi}{2}-{{ \theta}}\right)=csc({{ \theta}})\qquad 
csc\left(\frac{\pi}{2}-{{ \theta}}\right)=sec({{ \theta}})

\bf \\\\
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sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta )
\\\\\\
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\bf \\\\
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6 0
4 years ago
Which one doesn't belong?
Montano1993 [528]

Answer:

A 17

B 11.5

Step-by-step explanation:

5+2=7+2=9+2=11+2=13+2=15+2=17

and please check ur question C and D

7 0
3 years ago
If x1 and x2 are the roots of the equation x^2 +5x-3=0, determine the value of x1^2 + x2^2. I know that I have to use vietas for
Arturiano [62]

Answer:

31

Step-by-step explanation:

Given

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5 0
3 years ago
Explain when it would be more useful to use the Counting Principle than a tree diagram to count possible outcomes of an event.
Kipish [7]
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