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Licemer1 [7]
3 years ago
6

Can sum kne s help I need it

Mathematics
2 answers:
yulyashka [42]3 years ago
6 0

Step-by-step explanation:

-17z - 12 + 15z = -12 - 2z

-2z - 12 = -2z - 12

-12 = -12

Since this statement is always true for all real values of z, there are infinitely many solutions.

Reika [66]3 years ago
3 0
The answer is 1 no solution
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Write a fraction that is equivalent to 3/5<br> that has a denominator of 20.
jek_recluse [69]

Answer:

12/20

Step-by-step explanation:

6 0
3 years ago
Someone help me please
lyudmila [28]
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Arbitron Media Research Inc. conducted a study of the iPod listening habits of men and women. One facet of the study involved th
Dovator [93]

Answer:

No ;

Step-by-step explanation:

Given ;

s2 = 10 ; n2 = 10 ; s1 = 12 ; n1 = 12

Hypothesis :

H0 : σ1² = σ2²

H1 : σ1² ≠ σ2²

The test statistic :

Ftest = s1² / s2² = 12² / 10² = 144 / 100 = 1.44

The Pvalue using the Pvalue from Ftest calculator :

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Denominator df = 10 - 1 = 9

Pvalue = 0.2969

At α = 0.1

If Pvalue > α ; Fail to reject H0

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Hence, we cannot conclude that variation exists

3 0
3 years ago
Learn with an example
Yuki888 [10]

Answer:

128.00

Step-by-step explanation:

7%x100=$21.40. Add go $107.00+21.40=the total cost. $128.40

8 0
4 years ago
Help me​ guys fast as ​
Viktor [21]
  • cos(180-x)=-cosX

\\ \rm\Rrightarrow tan^2135-cosec^260=-xcos45.sin45.cot60

\\ \rm\Rrightarrow (-1)^2-(\dfrac{2}{\sqrt{3}})^2=-\dfrac{x}{\sqrt{2}}\times \dfrac{1}{\sqrt{2}}\times \dfrac{1}{\sqrt{3}}

\\ \rm\Rrightarrow 1-\dfrac{4}{3}=\dfrac{-x}{2\sqrt{3}}

\\ \rm\Rrightarrow \dfrac{3-4}{3}=\dfrac{-x}{2\sqrt{3}}

\\ \rm\Rrightarrow \dfrac{-1}{3}=\dfrac{-x}{2\sqrt{3}}

\\ \rm\Rrightarrow \dfrac{1}{\sqrt{3}}=\dfrac{x}{2}

\\ \rm\Rrightarrow x=\dfrac{2}{\sqrt{3}}

4 0
3 years ago
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