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3 years ago

Pls help! who ever solves first will be awarded brainiest!!! solve asap!

Mathematics

2 answers:

Kipish [7]3 years ago

8 0

Answer:

Step-by-step explanation:

Lostsunrise [7]3 years ago

7 0

Answer:

[ ] = 3¹³

Step-by-step explanation:

3¹⁷ - 3¹⁵ + 3¹³ = [ ] x 73

3¹³ [3⁴ - 3² + 1] = [ ] x 73

3¹³ [81 - 9 + 1] = [ ] x 73

3¹³ x 73 = [ ] x 73

[ ] = 3¹³ [It says 3^13 if it is not clear/visible]

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3 years ago

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Please do this step by step!

Helen [10]

Answer:

Step-by-step explanation:

Let the amount creating equality = x

10% x + 625 = 20%x Convert The percentages to a decimal

10/100 x + 625 = 20/100 x Multiply both sides by 100

10x + 62500 = 20 x Subtract 10x from both sides

62500 = 20x - 10x Combine

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2 years ago

Which comparison is correct? 3/2 1/6 11/6 < 3/4 3/5 = 5/8

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Step-by-step explanation:

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4 years ago

A perfume company claims that the mean weight of ther new perfume is at least 8.9 fluid oz. Express the null hypothesis and the

zlopas [31]

Answer:

$H0: mu = 8.9 fl oz.\\\\$

$Ha: mu ≠8.9 fluid oz$

Step-by-step explanation:

Given that A perfume company claims that the mean weight of ther new perfume is at least 8.9 fluid oz

For testing this claim, in Statistics we perform a certain measures called hypothesis testing.

For this first step is to create null and alternate hypothesis.

Normally null hypothesis would have some statistic = something

Here we want to test the mean weight of perfume

Hence null hypothesis would be

H0: mu = 8.9 fl oz.

Alternate hypothesis would be opposite of this claim

i.e.

Ha: mu ≠8.9 fluid oz

Hence answer is

$H0: mu = 8.9 fl oz.\\\\$

$Ha: mu ≠8.9 fluid oz$

6 0

3 years ago

Pure mathematicsssss

stepan [7]

Answer:

(i) a = 2

b = -1

c = -1

(ii) x= 1

Step-by-step explanation:

Step 1: Factorise

$f(x) = 2(x^{2} -2x+\frac{1}{2})$

Step 2: Use the complete square method.

$f(x)=2(x^{2} -2x+(\frac{-2}{2})^{2} + \frac{1}{2} - (\frac{-2}{2})^{2} )$

Step 3: Have it to $a(x+b)^{2} +c$

$f(x)=2((x-1)^{2} -\frac{1}{2} )\\ = 2(x-1)^{2} -1$

Line of symmetry:

To find line of symmetry, we use -b/2a formula.

Based from $2x^{2} -4x+1$ :

a=2, b=-4

-b/2a = -(-4)/2(2) = 1

3 0

3 years ago