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AVprozaik [17]
3 years ago
5

What is the value of x? Enter your answer in the box. x =

Mathematics
1 answer:
Montano1993 [528]3 years ago
4 0

Answer:

x=9

Step-by-step explanation:

We have two similar triangles because both lines are parallel, use proportions to solve:

\frac{72}{9} =\frac{56}{3x-20}\\8=\frac{56}{3x-20}\\8(3x-20)=56\\3x-20=7\\3x=27\\x=9

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HURRY! PAST DUE MATH HOMEWORK!
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10•4=40. 40 is the perimeter of the square. To find the perimeter of the semicircle use the circle perimeter (circumference) formula and divide that answer by two. This would be pi•10. You get 31.4. Then divide by 2 so it’s 15.7. Finally add 15.7 and 40. Hope this helps... sorry it’s such a long answer
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2 years ago
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If 3, x, y, -9 are in A.P, find the values of x and y.​
Serggg [28]

Answer:

  • x = -1
  • y = -5

Step-by-step explanation:

The common difference (d) can be found using the first and 4th terms:

  a1 = 3

  a4 = a1 +d(4 -1)

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Then ...

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The values of x and y are -1 and -5, respectively.

6 0
3 years ago
Solve for x.<br> х/5= 20<br> 0. 25<br> 4<br> 10<br><br> 100
GuDViN [60]

Answer:

100

Step-by-step explanation:

x = 5 × 20 = 100

.........................

3 0
3 years ago
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It's from the chapter : "exponents and powers"<br>i need the workings too<br>please help​
labwork [276]

Answer:

505/19

Step-by-step explanation:

Easy

so [3^3-(1/2)^(-3)*(1/19)]

simplify

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convert element to fraction

(27*19)/19-8/19

combine

(27*19-8)/19

505/19

Have a wonderful day ask me if you have more questions about MATH that goes for anyone who needs math help

5 0
3 years ago
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