2 years ago

Can someone pls help anyone?

Mathematics

2 answers:

IrinaVladis [17]2 years ago

8 0

Answer:

40 units

Step-by-step explanation:

A=hbb

2=8·10

2=40

garik1379 [7]2 years ago

5 0

Your answer should be 40 units.

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A. Sin40=6/x B. Sin40= x/6 C. Cos40= x/6 D. Cos40=6/x

STatiana [176]

The answer is A. sin40=6/x

7 0

3 years ago

Solve for missing variable d=rt, r=57, t=4

____ [38]

D=228

when 2 numbers or variables are next to eachother it means you need to multiply. So in this case r=57 and t=4 and we mulitply. 57 x 4 = 228. So the answer is 228. Hope this helps and have a great day!

8 0

3 years ago

Quadrilateral ABCD is a trapezoid with an area of 20 cm^2 Find the height of the trapezoid, h. Round the answer to the nearest t

sergij07 [2.7K]

Area of trapezoid=(7+3)*h/2=20 cm2
10*h/2=20
5h=20
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the answer is 4.0 cm

5 0

3 years ago

The range of the following relation R:

NemiM [27]

Answer:

{- 5, - 4, 2 }

Step-by-step explanation:

the range is the corresponding values of y ( output) from the given set in ascending order without repeats

3 0

3 years ago

The Director of Admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem

VMariaS [17]

Answer:

Variance = 24900

Standard Deviation = 157.7973

Step-by-step explanation:

We are given the following in the question:

Number of admissions: 1000 1200 1500

Admissions Probability: 0.6 0.3 0.1

Formula:

$E(x) = \displaystyle\sum x_iP(x_i)\\E(x) = 1000(0.6) + 1200(0.3) + 1500(0.1)\\E(x) = 1110\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\E(x^2) = (1000)^2(0.6) + (1200)^2(0.3) + (1500)^2(0.1)\\E(x^2) = 1257000$

Variance =

$\sigma^2 = E(x^2) - (E(x))^2\\\sigma^2 = 1257000 -(1110)^2\\\sigma^2 =24900$

Thus, the variance is 24900.

Standard Deviation =

$\sigma = \sqrt{\sigma^2} = \sqrt{24900} = 157.7973$

Thus, the standard deviation is 157.7973

7 0

2 years ago