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3 years ago

HELP! if a||b, what is the value of x?

Mathematics

1 answer:

NemiM [27]3 years ago

6 0

Answer:

x=9

Step-by-step explanation:

50 degrees and (10x-40) degrees are alternate interior angles and are, as such, equal. Thus, 50=10x-40, or 90 = 10x, or x = 9.

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What is the measure of the missing angle?

Luda [366]

Answer:

B=23.19

Step-by-step explanation:

First, find the last side of the triangle using the Pythagorean theorem.

$a^{2} +b^{2} =c^{2} \\21^{2} +9^{2} =c^{2} \\441+81=c^{2} \\\sqrt[3]{58}=c$

Then, find the missing angle, lets name it B.

The angle B can be found using the inverse sine function.

B=arcsin(opp/hyp)

$B=arcsin(\frac{9}{\sqrt[3]{58} } )\\B=23.19$

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2 years ago

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The mean of a normally distributed dataset is 12, and the standard deviation is 2.

madam [21]

NormalCdf(-2,2,0,1)=.9545
95.45%

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2 years ago

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Please help (photo attached)

ipn [44]

Formula for triangle area = base times height over two. area of smallest triangle: 2*2/2, so 2. area of medium sized triangle: 2*6/2, so 6. the square in between those triangles has an area of four (2*2). the base of the largest triangle is 2+2+6, so 10, and the height is 4. use the formula to find its area is 20. add them all together to get 4+6+4+20 is 34 units^2.

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2 years ago

If "z" is a standard normal variable, find the probability that "z" is less than 1.16. Sketch the graph and the required area.

mixer [17]

Answer:

Step-by-step explanation:

It would be more obvious if it says z is a standard Normal variable and that the question is related to statistics.

From "Computing Probabilities Using the Cumulative Table" , the probability of z is less than 1.16, P(z<1.16) = 0.8770.

7 0

2 years ago

Use the Pythagorean theorem to find the missing area

fgiga [73]

Answer:

28 cm^2

Step-by-step explanation:

a^+21^2=36^2

a^2+441=1225

a=28

5 0

2 years ago