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Novosadov [1.4K]
2 years ago
11

Help me I need please

rt%7Bx%20%7B%7D%5E%7B2%7D%20%20-%209%7D%20" id="TexFormula1" title=" \sqrt{ {x}^{2} - 4 } \times \sqrt{x {}^{2} - 9} " alt=" \sqrt{ {x}^{2} - 4 } \times \sqrt{x {}^{2} - 9} " align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
DaniilM [7]2 years ago
6 0

Step-by-step explanation:

thank \: you

Sauron [17]2 years ago
3 0

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION ..

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Read 2 more answers
Copy the problem, mark the givens in the diagram. Given: CS ≅ HR, ∠CHS ≅ ∠HCR, ∠CSH ≅ ∠HRC, Prove: CR ≅ HS
Veseljchak [2.6K]

Explanation:

1. CS ≅ HR, ∠CHS ≅ ∠HCR, ∠CSH ≅ ∠HRC — given

2. ∆CRH ~ ∆HSC — AA similarity theorem

3. ∠SCH ≅ ∠RHC — corresponding angles of similar triangles are congruent

4. CH ≅ HC — reflexive property of congruence

5. ∆CRH ≅ ∆HSC — SAS congruence theorem

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6 0
3 years ago
400 UCF students were randomly selected and asked if they preferred washing their hands with soap and water or using hand saniti
kirill [66]

Answer:

1. a. z test for means and t test for means.

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Step-by-step explanation:

Hypothesis testing is used in a situation where there are more than 1 alternative available. The t test is conducted in the mean which determines the t value and then this value is compared with p value to identify the situation whether to accept or reject the null hypothesis. The alternative hypothesis in this situation is is represented by mu.

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