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pickupchik [31]
3 years ago
12

Find the surface area of 15cm, 5cm & 7cm

Mathematics
1 answer:
I am Lyosha [343]3 years ago
6 0

Answer: 525 cm^2

Step-by-step explanation:

Multiply L x W x H (15 x 5 x 7)

You should get 525 cm square

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An engineer performs a flow test of a cooling water system. The test equipment hooks into flow elements in the system. There are
KiRa [710]
Each flow element requires a test gauge ---> 32*80 = $2560

Each flow element needs total of 6 feet of tubing  ----> 32*6 = 192 ft
price per foot = 6/100 = $.06
-----> 192*.06 = $11.52

Each 3-ft length of tubing requires 2 connectors. ----> (192/3)*2 = 128
-----> 128*2.5 = $320

Total Cost = 2560 + 11.52 + 320 = $2891.52

Subtract from budget:
3000 - 2891.52 = $108.48
8 0
4 years ago
Tasha claims that her skateboard weighs about 3 pounds. is Tasha's claim reasonable? Explain
gladu [14]
Yes, It would be reasonable since thats about the weight of a skateboard.
However, the average skateboard is closer to 6 pounds. So, the skateboard in the question is very possible- but it would be really low quality.

However- given that you are in middle school- I would say yes, it is reasonable.
8 0
3 years ago
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I NEED HELP PLEASE, THANK YOU!
bixtya [17]

Answer:

\sqrt{37}

Step-by-step explanation:

To find the distance between a point (m, n ) and the line

Ax + By + C = 0

d = \frac{|Am +Bn+C|}{\sqrt{A^2+B^2} }

Here (m, n) = (6, 2) and rearranging the line

6x - y + 3 = 0 ← in general form

with A = 6, B = - 1 and C = 3 , then

d = \frac{|6(6)-1(2)+3|}{\sqrt{6^2+(-1)^2} }

   = \frac{|36-2+3|}{\sqrt{36+1} }

   = \frac{37}{\sqrt{37} }  

Rationalise the denominator by multiplying numerator/ denominator by \sqrt{37}

= \frac{37}{\sqrt{37} } × \frac{\sqrt{37} }{\sqrt{37} }

=\frac{37\sqrt{37} }{37} ← cancel 37 on numerator/ denominator

= \sqrt{37}

5 0
3 years ago
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The mother's age is 8 times her son's age. After 6 years, the age of the mother will be 9/2 times her son's age. The present age
Yakvenalex [24]

Answer:

son = 6 mother = 48

Step-by-step explanation:

Mother = m

son = s

m = 8s

m+6 = 9/2 * (s+6)

so

2(8s + 6) = 9(s +6)

16s + 12 = 9s + 54

16s - 9s = 54 - 12

7s = 42

s = 42/7 = 6 years old

so the mother is 8s = 8*6= 48 years old

4 0
3 years ago
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GIVING BRAINLIEST ONLY IF CORRECT
Kipish [7]

<em>Option 2 </em>

<em />

It's just the black part and the empty square under which is 1/2 and the red square with the empty square under is 1/2 so it's 1/2 x 1/2

8 0
2 years ago
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