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3 years ago

These are the means and standard deviations for samples of prices from two

Mathematics

1 answer:

Agata [3.3K]3 years ago

4 0

Answer: Brand A's prices are less spread out than brand B's prices

Brand A has a higher average price than brand B.

Step-by-step explanation:

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How to solve 6x - 9 - 2 (1 - x) = x + 9

Likurg_2 [28]

$x = 2.857$

$\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}$

$6x - 9 - 2(1 - x) = x + 9 \\ ⇢ 6x - 9 - 2 + 2x = x + 9 \\ ⇢ 8x - x = 9 + 11 \\ ⇢ 7x = 20 \\ ⇢ x = \frac{20}{7} \\ ⇢ x = 2.857$

${ \bf{ \underbrace{To\:verify:}}}$

$6 \times 2.857 - 9 - 2(1 - 2.857) = 2.857 + 9 \\ ➪ \: 17.142 - 9 - 2 \times( - 1.857) = 11.857 \\➪ \: 8.142 + 3.714 = 11.857 \\➪ \: 11.856 = 11.857 \\ ➪ \: 11.86 = 11.86 \\ ➪ L.H.S.=R. H. S$

Hence verified.

$\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}$

7 0

2 years ago

Marsha deposited $5,000 into a savings account 2 years ago. The simple interest rate is 3%. How much money did Marsha earn in

NARA [144]

Answer:

$300

Step-by-step explanation:

(5000)(2)(3/100)

=300

7 0

3 years ago

What is 12378 x 129 divided by 67 x 349 plus 18476 divided by 6 x2390

Artist 52 [7]

answer:15,677,068.4

8 0

2 years ago

What is 6.86 6.8 7 6.9 6.827 from least to greatest

Nikitich [7]

Answer:

ITS 1, 2, 3, 4, 5 HOW MANY DOGS ARE IN MY BASEMENT WATCHING DORA THE EXPLORA

Step-by-step explanation:

4 0

3 years ago

What is the cirumference of a circle with a diameter of 4.1 cm

nordsb [41]

Answer:

C = 12.88

Step-by-step explanation:

If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter.

C = π d = π · 4.1 = 12.88053cm

Glad to help ya!!

5 0

3 years ago