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postnew [5]
3 years ago
12

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:

<u>[ ] = 3¹³</u>

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

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

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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

62500 = 10x                             Divide by 10 on both sides

62500/10 =10 x/10

6250  = x

The equality is reached when 6250 sales is made.

8 0
2 years ago
Which comparison is correct?<br> 3/2 1/6<br> 11/6 &lt; 3/4<br> 3/5 = 5/8
zaharov [31]

Answer: Jess is right

Step-by-step explanation:

7 0
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:

<u>Step 1: Factorise</u>

f(x) = 2(x^{2} -2x+\frac{1}{2})  

<u>Step 2: Use the complete square method. </u>

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

<u>Step 3: Have it</u><u> </u><u>to </u>a(x+b)^{2} +c

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

<u>Line of symmetry: </u> 

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
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