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Nitella [24]
2 years ago
10

In a sample of 56 bags of fertilizer, the average weight was found to be 17.2lb with a standard deviation of 0.7. Give a point e

stimate for the population standard deviation of the weight of the bags of fertilizer.
Mathematics
1 answer:
Natali5045456 [20]2 years ago
5 0

Answer:

???????????????????????

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I need help finding ac, cb, and ab
Taya2010 [7]
AC is 2x+1
CB is 3x-4
AB= 2x+1+3x-4


6 0
3 years ago
What is the missing numerator? blank over five plus eighteen over twenty equals thirty over twenty 8 5 3 2
Oliga [24]

Given:

\dfrac{?}{5}+\dfrac{18}{20}=\dfrac{30}{20}

To find:

The missing value.

Solution:

Let x be the missing value.

We have,

\dfrac{x}{5}+\dfrac{18}{20}=\dfrac{30}{20}

\dfrac{x}{5}+\dfrac{9}{10}=\dfrac{3}{2}

Subtract \dfrac{9}{10} from both sides.

\dfrac{x}{5}=\dfrac{3}{2}-\dfrac{9}{10}

\dfrac{x}{5}=\dfrac{15-9}{10}

\dfrac{x}{5}=\dfrac{6}{10}

\dfrac{x}{5}=\dfrac{3}{5}

Multiplying both sides by 5, we get

x=3

So, the missing value is 3.

Therefore, the correct option is C.

8 0
3 years ago
Sketch the graph of the given equation. y = x2 + 8x +15
Tamiku [17]
The pictures may be in a different order for you but it’s the 3rd graph where the minimum is (-4,-1)
3 0
2 years ago
Which system is equivalent to<br> y= 9x^2<br> x+y=5<br> ?
melomori [17]

Answer : Option A

Explanation:

we can clearly see that from x+ y=5 we can substitute  y = 5-x in y = 9x^2

Option B is clearly incorrect  x can not be y -5

Option C  is incorrect because y can not be 5 +x

Option D is incorrect because  its y = 9x^2 not y^2 =9x^2 so y can not be 3x

if its y^2 = 9x^2 then  only  implies y =  3x

7 0
3 years ago
Read 2 more answers
Assume that 0 a) 25/24 b) -25/24 c) 24/25 d) -24/25
ser-zykov [4K]
A) 25/24 because i don’t know i’m just doing this to get points
8 0
3 years ago
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