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4 years ago

Counterexample of the square of a number is always greater than the number

Mathematics

2 answers:

Levart [38]4 years ago

8 0

(1)² = 1

1 = 1

if you can use fractions

(1/4)² = 1/16

1/4 > 1/16

denpristay [2]4 years ago

5 0

0 x 0 is 0 so 0 squared is a counter example

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Can please cross multiply this for me :)

Alchen [17]

64 x 100 = 6400
11 x x = 11x
I’ll solve this out for you
11x = 6400
Divide 11 from both sides
x = 581.8
Hope this helps!

4 0

4 years ago

Read 2 more answers

Rammy has $9.60 to spend on some peaches and a gallon of milk. Peaches cost $1.20 per pound, and a gallon of milk cost $3.60.

lesya692 [45]

Answer:

Rammy can buy 5 pounds of peaches

Step-by-step explanation:

1.20(5) + 3.60 = 9.60

subtract the cost of the gallon from the total amount and then divide the leftover cost $6 by $1.20 and you'll get 5.

4 0

3 years ago

Math algebra can u pls help

lbvjy [14]

Answer:

$9 - {x}^{2} = > 2 \\ - 77 = > 0 \\ 4 {x}^{3} = > 3 \\ 3 {x}^{2} + 5x + 2 = > 2 \\ 2x {y }^{2} + xy = > 3 \\ - 4x + 2 = > 1 \\ thank \: you$

7 0

3 years ago

The wholesale price for a of shoes is $7.50. A certain department store marks up the wholesale price by 50%. Find the price of t

morpeh [17]

Answer:

$11.25

Step-by-step explanation:

1.5×7.5=11.25

4 0

3 years ago

The Chartered Financial Analyst (CFA) designation is fast becoming a requirement for serious investment professionals. Although

Nastasia [14]

Answer: ($141,775, $158,225)

Step-by-step explanation:

Given : Significance level : $\alpha: 1-0.9=0.1$

Critical value : $z_{\alpha/2}=1.645$

Sample size : n= 49

Sample mean : $\overline{x}=150,000$

Standard deviation : $\sigma=35,000$

The confidence interval for population mean is given by :_

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

$= 150,000\pm (1.645)\dfrac{35000}{\sqrt{49}}\\\\\approx150,000\pm8225\\\\=(150,000-8225,150,000+8225)=(141,775,158,225)$

Hence,he 90% confidence interval for the average salary of a CFA charter-holder = ($141,775, $158,225)

7 0

3 years ago