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3241004551 [841]
4 years ago
9

This Spring, Daisy wanted to

Mathematics
2 answers:
meriva4 years ago
8 0
5•6 = 30.

She needs to buy 30 flowers from the store.
Marta_Voda [28]4 years ago
7 0

Answer:

30

Step-by-step explanation:

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In which of the scenarios below can you reverse the dependent and independent variables while keeping the interpretation of the
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3 0
3 years ago
F(x)= -20x^2+23x-6 solve it and show a little bit of work i am having a brain fart on this one
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5 0
4 years ago
What is the arithmetic mean of the following numbers?<br> 1,2, 10, 6, 4,4,6,3,1,4
sp2606 [1]

Answer:

The quadratic mean (rms) of a set of numbers is the square root of the sum of the squares of the numbers divided by the number of terms.











⎷

(

1

)

2

+

(

2

)

2

+

(

10

)

2

+

(

6

)

2

+

(

4

)

2

+

(

4

)

2

+

(

6

)

2

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Step-by-step explanation:

One to any power is one.

√

1

+

(

2

)

2

+

(

10

)

2

+

(

6

)

2

+

(

4

)

2

+

(

4

)

2

+

(

6

)

2

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Raise  

2

to the power of  

2

.

√

1

+

4

+

(

10

)

2

+

(

6

)

2

+

(

4

)

2

+

(

4

)

2

+

(

6

)

2

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Raise  

10

to the power of  

2

.

√

1

+

4

+

100

+

(

6

)

2

+

(

4

)

2

+

(

4

)

2

+

(

6

)

2

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Raise  

6

to the power of  

2

.

√

1

+

4

+

100

+

36

+

(

4

)

2

+

(

4

)

2

+

(

6

)

2

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Raise  

4

to the power of  

2

.

√

1

+

4

+

100

+

36

+

16

+

(

4

)

2

+

(

6

)

2

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Raise  

4

to the power of  

2

.

√

1

+

4

+

100

+

36

+

16

+

16

+

(

6

)

2

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Raise  

6

to the power of  

2

.

√

1

+

4

+

100

+

36

+

16

+

16

+

36

+

(

3

)

2

+

(

1

)

2

+

(

4

)

2

10

Raise  

3

to the power of  

2

.

√

1

+

4

+

100

+

36

+

16

+

16

+

36

+

9

+

(

1

)

2

+

(

4

)

2

10

One to any power is one.

√

1

+

4

+

100

+

36

+

16

+

16

+

36

+

9

+

1

+

(

4

)

2

10

Raise  

4

to the power of  

2

.

√

1

+

4

+

100

+

36

+

16

+

16

+

36

+

9

+

1

+

16

10

Add  

1

and  

4

.

√

5

+

100

+

36

+

16

+

16

+

36

+

9

+

1

+

16

10

Add  

5

and  

100

.

√

105

+

36

+

16

+

16

+

36

+

9

+

1

+

16

10

Add  

105

and  

36

.

√

141

+

16

+

16

+

36

+

9

+

1

+

16

10

Add  

141

and  

16

.

√

157

+

16

+

36

+

9

+

1

+

16

10

Add  

157

and  

16

.

√

173

+

36

+

9

+

1

+

16

10

Add  

173

and  

36

.

√

209

+

9

+

1

+

16

10

Add  

209

and  

9

.

√

218

+

1

+

16

10

Add  

218

and  

1

.

√

219

+

16

10

Add  

219

and  

16

.

√

235

10

Cancel the common factor of  

235

and  

10

.

Tap for fewer steps...

Factor  

5

out of  

235

.

√

5

(

47

)

10

Cancel the common factors.

Tap for fewer steps...

Factor  

5

out of  

10

.

√

5

⋅

47

5

⋅

2

Cancel the common factor.

√

5

⋅

47

5

⋅

2

Rewrite the expression.

√

47

2

Rewrite  

√

47

2

as  

√

47

√

2

.

√

47

√

2

Multiply  

√

47

√

2

by  

√

2

√

2

.

√

47

√

2

⋅

√

2

√

2

Combine and simplify the denominator.

Tap for fewer steps...

Multiply  

√

47

√

2

and  

√

2

√

2

.

√

47

√

2

√

2

√

2

Raise  

√

2

to the power of  

1

.

√

47

√

2

√

2

1

√

2

Raise  

√

2

to the power of  

1

.

√

47

√

2

√

2

1

√

2

1

Use the power rule  

a

m

a

n

=

a

m

+

n

to combine exponents.

√

47

√

2

√

2

1

+

1

Add  

1

and  

1

.

√

47

√

2

√

2

2

Rewrite  

√

2

2

as  

2

.

Tap for fewer steps...

Use  

n

√

a

x

=

a

x

n

to rewrite  

√

2

as  

2

1

2

.

√

47

√

2

(

2

1

2

)

2

Apply the power rule and multiply exponents,  

(

a

m

)

n

=

a

m

n

.

√

47

√

2

2

1

2

⋅

2

Combine  

1

2

and  

2

.

√

47

√

2

2

2

2

Cancel the common factor of  

2

.

Tap for more steps...

√

47

√

2

2

1

Evaluate the exponent.

√

47

√

2

2

Simplify the numerator.

Tap for fewer steps...

Combine using the product rule for radicals.

√

47

⋅

2

2

Multiply  

47

by  

2

.

√

94

2

The result can be shown in multiple forms.

Exact Form:

√

94

2

Decimal Form:

4.84767985

…

4 0
3 years ago
Y is directly proportional to square root of x<br> If y=56 when x=49 find,<br> y when x=81
STALIN [3.7K]

\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}

\stackrel{\begin{array}{llll} \textit{"y" directly}\\ \textit{proportional to }\sqrt{x} \end{array}}{y = k\sqrt{x}}\qquad \textit{we know that} \begin{cases} y = 56\\ x = 49 \end{cases}\implies 56=k\sqrt{49} \\\\\\ 56=7k\implies \cfrac{56}{7}=k\implies 8=k~\hfill \boxed{y=8\sqrt{x}} \\\\\\ \textit{when x = 81, what is "y"?}\hfill y=8\sqrt{81}\implies y=8(9)\implies y=72

7 0
2 years ago
3.2+7<br> what is the answer ?
Tom [10]

Answer:

10.2

Step-by-step explanation:

8 0
3 years ago
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