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Sergeeva-Olga [200]
3 years ago
11

Find the value of x in the following diagram. ​

Mathematics
1 answer:
ehidna [41]3 years ago
3 0

Answer:

x = 3.5

Step-by-step explanation:

diameter = radius × radius

d= ( 3x + 1 ) + ( x + 8 )

3x + 1 = x + 8

subtract 1 and x

2x = 7

divide by 2

x = 3.5

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The speed of sound is approximately 1.2 × 103 km/h. How long does it take for sound to travel 7.2 × 102 km? Write the answer in
Shkiper50 [21]
Time = distance
           ---------------
             speed
           
         =    7.2 x 10^2 
             --------------------
               1.2 x 10^3 
          
         =     0.6 hrs = 0.6 x 60 = 36 minutes.

Hope this helps!



6 0
2 years ago
Change at least one number in the table so that it DOES represent a function.
almond37 [142]

Answer:

change 2 to 4

and 1 to 5

1 --> 5

2 --> 10

3 --> 15

4 --> 20

5 --> 24

Step-by-step explanation:

Function means you can have one input for evry one output

so you have to change the 2 and 1 to diffrent numbers like 4 and 5

so now evey imput has their own out put

befor input one it had 5 and 24

and input two had 10 and 20 but changing the number you get one for one

6 0
3 years ago
A $250 suede jacket is on sale for 20%off how much should you pay for the jacket
yarga [219]
250 * 0.20 = $50 sale
250 - 50 = $200
You will pay $200 after sale
4 0
2 years ago
Read 2 more answers
12. What's the simplified form of x − 1 + 4 + 7x − 3?
Leviafan [203]
The first one is B and the second is D
3 0
3 years ago
Read 2 more answers
Sorry i have another question what is the inequality of 8x−8≤−72.
vova2212 [387]

That answer is x≤−8


Inequality:

8x−8≤−72


Step number  1:  You have to Add 8 to both sides.

8x−8+8≤−72+8

8x≤−64



Step number 2: You have to Divide both sides by 8.

8x /8  ≤  −64 / 8


Ur Answer:

x≤−8


Hope this helps :)


7 0
3 years ago
Read 2 more answers
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