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3 years ago

How to solve a problem.

Mathematics

1 answer:

mash [69]3 years ago

8 0

a) $\log \left(\dfrac{A^3B}{C} \right) = 3\log A + \log B - \log C$

b) $\log \left(\dfrac{\sqrt{A}}{B^2} \right) = \frac{1}{2}\log A - 2\log B$

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what is the value of the the expression x+5/y^2 for x = 2/3 and y= 1/3. A. 17/27 B. 17. C.34. D.51

uysha [10]

Answer:

Step-by-step explanation:

x + 5/y^2

x = 2/3

y = 1/3

2/3 + 5 / (1/3)^2 Expand (1/3)^2

2/3 + 5 / (1/9) Put a 1 underneath the 5

2/3 + 5/1 / (1/9) Invert and multiply the second expression

2/3 + 5/1 * 9 Simplify 5/1

2/3 + 5* 9 Combine

45 2/3

I'm not getting any of these. It's possible I'm misreading the question, but what you've given is the result I got. All I can suggest is that you ask your teacher how this is done.

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2 years ago

If a six-sided die(1-6) and a ten-sided die(1-10) are rolled simultaneously, then what is the probability of rolling both with a

AnnyKZ [126]

Answer:

$Pr = 0.20$

Step-by-step explanation:

Given

$n_1 = 10$ ---- 10 sided

$n_2 = 6$ --- 6 sided

Required

$P(x_1,x_2 > 4)$

First, list out the sample space

$S = \{(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)(2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)$

$(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6) (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)$

$(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6) (6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)$

$(7, 1) (7, 2) (7, 3) (7, 4) (7, 5) (7, 6) (8, 1) (8, 2) (8, 3) (8, 4) (8, 5) (8, 6)$

$(9, 1) (9, 2) (9, 3) (9, 4) (9, 5) (9, 6) (10, 1) (10, 2) (10, 3) (10, 4) (10, 5) (10, 6)\}$

$n(S) = 60$ --- total outcomes

The event that the outcome of both is greater than 4 is:

$x_1,x_2> 4 = \{(5, 5) (5, 6)(6, 5) (6, 6)(7, 5) (7, 6) (8, 5) (8, 6)(9, 5) (9, 6) (10, 5) (10, 6)\}$

$n(x_1,x_2>4) = 12$

So, the probability is:

$Pr = \frac{n(x_1,x_2>4)}{n(S)}$

$Pr = \frac{12}{60}$

$Pr = 0.20$

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3 years ago

The shopping center in Montgomeryville has 23,619 square feet the shopping center in harleyville has 6,522 square feet. What sta

Harman [31]

Answer:

jhkhdjkfjk

safhu

Step-by-step explanation:

ashfjhsuiehfnal/fihfaeo

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3 years ago

The total amount Toni spent on shirts is $64. If you rewrite 64 using 2 as the base, what would be the exponent?

Angelina_Jolie [31]

6 because 2x2x2x2x2x2=64
2x2=4x2=8x2=16x2=32x2=64

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3 years ago

No need for any working out just the answers please

weeeeeb [17]

42. 24. 48

33. 51. 43

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4 years ago