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Anvisha [2.4K]
3 years ago
10

WILL GIVE BRAINLIEST

Mathematics
2 answers:
Neko [114]3 years ago
6 0

Step-by-step explanation:

(23)2-5=6

23 3 =6

so it goanna be 2raise to power 3x equal6

kykrilka [37]3 years ago
6 0

Answer:

Note:\\If~x^{a}=b,~then~x=log_a(b)\\We have,\\23^{2x-5}=6\\or, 2x-5 = log_{23}6\\or, 2x = log_{23}6 +5\\\\or, x =0.5({log_{23}6+5} )

Mark me as brainlist

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VMariaS [17]

Answer:

H0: μ = 5 versus Ha: μ < 5.

Step-by-step explanation:

Given:

μ = true average radioactivity level(picocuries per liter)

5 pCi/L = dividing line between safe and unsafe water

The recommended test here is to test the null hypothesis, H0: μ = 5 against the alternative hypothesis Ha: μ < 5.

A type I error, is an error where the null hypothesis, H0 is rejected when it is true.

We know type I error can be controlled, so safer option which is to test H0: μ = 5 vs Ha: μ < 5 is recommended.

Here, a type I error involves declaring the water is safe when it is not safe. A test which ensures that this error is highly unlikely is desirable because this is a very serious error. We prefer that the most serious error be a type I error because it can be explicitly controlled.

7 0
3 years ago
6 + 2/5b = 12<br><br> What does “b” equal?
Elis [28]

Answer:

B = 15

Step-by-step explanation:

<u>Combine multiplied terms into a single fraction</u>

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<u>Subtract 6 from both sides</u>

6 + 2b/5 <em>(-6)</em> = 12 <em>(-6)   </em>= 2b/5 = 6

<u>Multiply all terms by the same value to eliminate fraction denominators</u>

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<em />

<u>Simplify</u>

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4 0
3 years ago
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vekshin1

Answer:

b = 1, c = -1 and d = 4

Step-by-step explanation:

To solve this question the rule of multiplicity of a polynomial is to be followed.

If the multiplicity of a polynomial is even at a point, graph of the polynomial will touch the x-axis.

If the multiplicity of the polynomial is odd, graph will cross the x-axis at that point.

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Therefore, b = 1, c = -1 and d = 4 will be the answer.

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3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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