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mina [271]
3 years ago
8

Can someone explain this​

Mathematics
1 answer:
hodyreva [135]3 years ago
3 0

Answer:

x² = V19²-10²

= V361-100

= V261

x = 16.2

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Answer with workings please
icang [17]
AB = 9 cm
BC = 6cm

CD = 7 cm
AE = 6 cm

3BC = AB
3ED = AE

  AB = AE
  BC    ED
    ⁹/₃ = ⁶/ₓ
3 · 6 = 9 · x
   18 = 9x
    9      9
     2 = x

ED = 2 cm
5 0
3 years ago
A pet supply store sells a 20-pound bag of dog food $23.44. find the unit price what is the error of 20 divided by 23.44=.85
dimulka [17.4K]
23.44 / 20 = 1.172 rounds to 1.17 per lb <== this is cost per lb...this is telling u how much each lb of dog food costs

20 / 23.44 = 0.85....this is lbs per dollar....this is telling u that u r getting 0.85 lbs for a dollar
4 0
3 years ago
The distance between the points (7,2) and (7 –9)
Angelina_Jolie [31]
The distance between both points is 11
6 0
3 years ago
Helppppppppppppppppppppp
valentina_108 [34]

Answer:

Cubic

Step-by-step explanation:

A cubic polynomial has a highest degree of 3.

In this polynomial, we see "q^3" meaning that q is raised to the 3rd power, making this a cubic polynomial.

Hope this helps!

4 0
2 years ago
What is the best approximation for the area of a circle diameter of 19 m?
Maslowich
The formula for an area of a circle is 
A=pi times radius squared

there for you do pi times 9.5 to the power of two/squared (radius is half of the diameter so 19 divided by 2 is 9.5) 

pi times 9.5 squared 
= 283.5

I rounded to the nearest tenths


7 0
3 years ago
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