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4 years ago

Help please Math Geometry

Mathematics

1 answer:

Mrac [35]4 years ago

8 0

It's the parallelogram. Therefore

ML = JK, JM = KL, m∠L = m∠J, m∠M = m∠K and m∠M + m∠L = 180°.

ML = 21 → JK = 21

JM = 29 → KL = 29

m∠L = 127° → m∠J = 127°

m∠M + m∠L = 180° → m∠M + 127° = 180° → m∠M = 53°

m∠M = 53° → m∠K = 53°

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Gabriel has 268 miniture trains.he lines them up in 2 equal rows. how many trains are in each row

Gwar [14]

Answer:

134

Step-by-step explanation:

268/2=134

since its equal both rows should have the same number.

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3 years ago

A spinner game has a wheel with the numbers zero through 40 marked in equally spaced slots. Consider a $1 bet on a number from 1

Svetradugi [14.3K]

Answer:

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Step-by-step explanation:

to find out

the expected return for this bet

solution

we know that Number of slots in the spinner is

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P for you winning is here = $\frac{1}{41}$

and

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so we can say that

Expected return for this bet is = Winning amount × P (winning) - Cost of bet ...............................1

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6 0

3 years ago

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ELEN [110]

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3 years ago

22 random samples were selected from a population that has a normal distribution the sample has a mean of 99 and a standard devi

olga2289 [7]

Answer:

(96.91, 101.09)

Step-by-step explanation:

To calculate the interval, you require the Z value at 95% confidence interval. The Z value is 1.96. The formula to calculate the confidence interval:

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3 0

4 years ago

Read 2 more answers

Linda throws a dart that hits the square shown below:

guajiro [1.7K]

The picture in the attached figure

step 1
find the area of a square
area of a square=b²
b in this problem is the diameter of a circle
b=2*9------> b=18 units²
area of a square=18²-----> 324 units²

step 2
find the area of a circle
area of a circle=pi*r²
r=9 units
area of a circle=pi*9²------> 254.34 units²

step 3
find <span>the probability that the dart hits a point in the circle
P=area of the circle/area of the square
P=254.34/324------> P=0.785-----> 78.5%

the answer is
78.5%

</span>

8 0

3 years ago

Read 2 more answers