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2 years ago

ASAP WILL AWARD BRAINLIEST. Please find the area of all the shapes.

Mathematics

1 answer:

Mandarinka [93]2 years ago

8 0

Answer:

This a trapezium shape.

8+13/2×4=42 in2

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The scale of a map is 7ft = 14.4 mi<br><br> map: ________ ft<br> actual: 24.6 mi

Inessa [10]

The answer to the question can be found by setting up a proportion such as 7/14.4=x/24.6 which gives you 11.9583 ft

8 0

2 years ago

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The mean number of daily surgeries at a local hospital is 6.2. Assume that surgeries are random, independent events. (a) The cou

Scilla [17]

Answer:

a) correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2 surgeries in a given day is 0.0536

Step-by-step explanation:

Given data:

mean number is given as 6.2

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

we know that variance is given as $\sigma^2 = mean = 6.2$

hence, standard deviation is given as $\sqrt{6.2} = 2.48998$

thus standard deviation is 2.49

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2 surgeries in a given day is

$P(X \leq 2) = P(X =0) + P(X =1) + P(X =2)$

$= \frac{e^{-6.2} 6.2^0}{0!} +\frac{e^{-6.2} 6.2^1}{1!} +\frac{e^{-6.2} 6.2^2}{2!}$

= 0.002029 + 0.012582+ 0.039006

= 0.053617

= 0.0536

7 0

2 years ago

Three houses are mapped on a coordinate grid.

Licemer1 [7]

Step-by-step explanation:

Let us consider the task to find the angle between vectors ES and EJ (the first letters are taken to name the vectors).

\overrightarrow{ES} = (4;4) - (4; -3) = \overrightarrow{(0; 7)}

=(4;4)−(4;−3)=

(0;7)

\overrightarrow{EJ} = (-5; -4) - (4; -3) = \overrightarrow{(-9; -1)}

=(−5;−4)−(4;−3)=

(−9;−1)

cos \alpha=\frac{\overrightarrow{ES}*\overrightarrow{EJ}}{|\overrightarrow{EJ}|*|\overrightarrow{ES}|}cosα=

∣

∣∗∣

∣

∗

cos(a) = (0*(-9)+7*(-1)) / (7*9.055) = -0.11043;

a = 96,34°

Solution: 96 degrees.

6 0

2 years ago

The price of an iphone was reduced from $960 to $840. By what percentage was the price of the iphone reduced?

Taya2010 [7]

Answer:

13.5%

Step-by-step explanation:

I hope this helps

5 0

2 years ago

Answer needed ASAP !!!!

kumpel [21]

Answer:

The answer is C)

Step-by-step explanation:

if you graph it on desmos they are the same line.

6 0

2 years ago

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