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In-s [12.5K]
2 years ago
11

What is the area of this figure (4,1)(2,2)(2,-2)(-4,-2)(-2,-5)(2,-5)

Mathematics
1 answer:
V125BC [204]2 years ago
8 0

Answer:

The area of this figure is 45 square units.

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What is the probability of drawing a face card from a standard deck of cards and rolling a 3 or more on a 20-sided dice?
Nastasia [14]

Answer: 20.77%

Step-by-step explanation:

There are 52 cards in a standard deck. Out of these cards, there are 12 face cards. Thus, the probability of drawing a face is 12/52.

On a 20-sided dice, there are 20 options of numbers to roll. Out of these 20 numbers, 18 of the numbers are greater than or equal to 3, making the probability 18/20, or 9/10.

To find the probability of two events, you need to multiply the probabilities together. Thus, you need to multiply 12/52 by 9/10.

(12/52) * (9/10) = 27/130

27/130 is about equal to 0.2077, or a 20.77% probability.

3 0
2 years ago
If s(x) = 2 - x and t(x) = 3x, which value is equivalent to (s•f)(-7)?
erica [24]

Answer:

Step-by-step explanation:

t(-7)= 3(-7)= -21

s(-21)= 2-(-21)= 2 + 21= 23

4 0
9 months ago
uppose the correlation between two variables, math attitude (x) and math achievement (y) was found to be .78. Based on this stat
Nana76 [90]

Answer:

The proportion of the variability seen in math achievement that can be predicted by math attitude is 0.78, the same value as the correlation coefficient.

Step-by-step explanation:

The correlation coefficient r between this two variables is found to be 0.78.

This coefficient can be calculated as:

r=\dfrac{SSY'}{SSY}

where SSY' is the sum of the squares deviation from the mean for the predicted value and SSY is the sum of the squares deviation from the mean for the criterion variable.

Then, the value of the coefficient r is giving the proportion of the variability seen in the criterion value Y that can be explained by the predictor variable X.

3 0
3 years ago
Read 2 more answers
How could you use the conversion table on page 618 to convert 700 cenimeters to meters
Ludmilka [50]
It would be 7..........
5 0
3 years ago
Find the distance between K(9, 2) and L(–3, 9) to the nearest tenth.
Bas_tet [7]

d = √[(-3-9)²+(9-2)²]

= √[144+49]

= √194

= 13.9  

Hope it help! :)

6 0
3 years ago
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