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3 years ago

What is the value of x circle the correct answer 2\3 x =4

Mathematics

1 answer:

AfilCa [17]3 years ago

6 0

Answer:

Step-by-step explanation:

(2/3) x = 4 Multiply both sides by 3

(2/3) x * 3 = 4 * 3 Combine

2x = 12 The 3's on the left cancel. Divide by 2

2x/2 = 12/2 Do the division

x =6

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Amplitude:4

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3 years ago

Read 2 more answers

Estimate 31,969 divided by

kobusy [5.1K]

The quotient is approximately a little more than ...

... 32000/500 = 64

The actual quotient is 65 249/488 = 65.5102...

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3 years ago

Samples of skin experiencing desquamation are analyzed for both moisture and melanin content. The results from 100 skin samples

zheka24 [161]

Answer: a. 0.40 b. 0.23 c . 0.435 d . 0.25

Step-by-step explanation:

melanin content Total

high low

moisture high 13 10 23

content low 47 30 77

Total 60 40 <u> </u><u>100</u>

Let A denote the event that a sample has low melanin content, and let B denote the event that a sample has high moisture content.

a) Total skin samples has low melanin content = 10+30=40

P(A)= $\dfrac{40}{100}=0.40$

b) Total skin samples has high moisture content = 13+10=23

P(B) = $\dfrac{23}{100}=0.23$

c) A ∩ B = Total skin samples has both low melanin content and high moisture content =10

P(A ∩ B) = $\dfrac{10}{100}=0.10$

Using conditional probability formula , $P (A|B)=\dfrac{P(A\cap B)}{P(B)}$

$P (A|B)=\dfrac{0.10}{0.23}=0.434782608696\approx0.435$

d) $P (B|A)=\dfrac{P(A\cap B)}{P(A)}$

$P (B|A)=\dfrac{0.10}{0.40}=0.25$

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4 years ago

If the MAD for a forecast is 3.2, we can say that a. The forecast is 3.2 units too high on the average b. The forecast is 3.2 un

Rudik [331]

Answer:

The forecast is accurate within plus or minus 3.2 units

Step-by-step explanation:

Mean Absolute Deviation is a statistical measure of dispersion from forecast. It measures accuracy level of predicted forecast, by averaging the difference between absolute value of each error from forecasted value.

MAD for a forecast states that : Forecast is accurate within the expected range variation of Mean Absolute Deviation.

So : If the MAD for a forecast is 3.2, we can say that - The forecast is accurate within plus or minus 3.2 units

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4 years ago

What is the factor of 4x^2-16y^2

sweet-ann [11.9K]

4(x+2y) (x-2y)
hope this helps

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3 years ago