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Black_prince [1.1K]
3 years ago
5

How do i find x in questions #20 steps please

Mathematics
1 answer:
Ad libitum [116K]3 years ago
5 0
18- answer is 120
to find this:
first find the remaining angle in ABF
180-(55+40)=180-95=85
F has two angles. if F1 is 85 F2 is 85,too.(coterminal angles)
now you can find the interior angle of CDF
180-(35+85)=180-120=60
the you should find the exterior angle(exterior angle + interior angle =180)
180-60=120
x=120

20
x=48
y=82
ABC is parallel to EF
so to find x: 180-132=48
and for y:
180-((180-130)+48)=180-(50+48)=180-98=82
hope this helps
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If (x) = x / x^2-16 what is the value of f(-10)
Yuliya22 [10]

Answer:

f(-10)=-\dfrac{5}{42}

Step-by-step explanation:

You just replace 'x' for the value given, -10.

f(x)=\dfrac{x}{x^2-16}\\\\\\f(-10)=\dfrac{-10}{(-10)^2-16}=\dfrac{-10}{100-16}=\dfrac{-10}{84}\\\\\\\\\\f(-10)=-\dfrac{5}{42}

5 0
3 years ago
Which expression can be used to determine 50% of 42?
Crazy boy [7]
Hey there! :D

Since 50% is half of 100%, it would also be half of 42. 

42/2 <== that can be used to determine 50%

42/2= 21

50% of 42 is 21. 

You could also use this:

42*.5= 21 <== this also works

I hope this helps!
~kaikers 
3 0
4 years ago
When calculating simple interest, what must you do if you want to invest for months or weeks instead of years? a. Simple interes
azamat
<span><u><em>The correct answer is</em></u> D.

<u><em>Explanation: </em></u>
<span>Interest rates are given as an annual percentage rate. If you are investing for months or weeks, you will need to <u>convert your units</u>. You would divide the number of months by 12, since that would be the portion of a year it represents. For example, 3 months is 3/12 months, or 3/12 of a year. Similarly, if you were investing for weeks, you would divide by 52; if you want to invest for 6 weeks, that is 6/52 weeks, or 6/52 of a year.</span></span>
4 0
3 years ago
Rewrite each of the expressions below in a simpler form using exponents.
bija089 [108]

Answer:

6y^4

Step-by-step explanation:

Tell me if you need an explanation.

6 0
3 years ago
Simplify 4(3x^2y^4)3 / (2x^3y^5) ^4. Show your work. (Will give 50 Points &amp; Brainliest to correct answer.)
Delicious77 [7]

Answer:

4(3x2y4)3/(2x3y5)4

Final result :

   27

 —————

 4x6y8

Step by step solution :

Step  1  :

Equation at the end of step  1  :

   (((3•(x2))•(y4))3)

 4•——————————————————

     ((2x3•(y5))4)  

Step  2  :

Equation at the end of step  2  :

     ((3x2 • (y4))3)

 4 • ———————————————

        24x12y20    

Step  3  :

            33x6y12

Simplify   ————————

           24x12y20

Dividing exponential expressions :

3.1    x6 divided by x12 = x(6 - 12) = x(-6) = 1/x6

Dividing exponential expressions :

3.2    y12 divided by y20 = y(12 - 20) = y(-8) = 1/y8

Equation at the end of step  3  :

       27  

 4 • ——————

     16x6y8

Step  4  :

Final result :

   27

 —————

 4x6y8

7 0
4 years ago
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