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3 years ago

Jake thinks that a rhombus is not always a parallelogram is Jake correct

Mathematics

2 answers:

Sophie [7]3 years ago

7 0

Yes offcourse he's correct as rhombus diagonals bisect each other at 90degree whereas parallelogram's diagonals doesn't

ella [17]3 years ago

6 0

Answer:

Yes he is correct

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Which are partial products for 56 × 31?

Alexeev081 [22]

A.C.D. Is the right ones

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3 years ago

I need help with number 30

yanalaym [24]

Answer:

220

Step-by-step explanation:

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4 years ago

1.) Jasmine earns her regular pay of $9.50 per hour for up to 40 hours of

HACTEHA [7]

Answer:

$408.25

Step-by-step explanation:

9.50 times 40=380

9.50 times 1.5= 14.25

14.25 times 2=28.50

380+28.50=

$408.25

4 0

3 years ago

Read 2 more answers

An airplane pilot over the Pacific sights an atoll at an angle of depression of 5 . At this time, the horizontal distance from t

Aleonysh [2.5K]

Answer:

404.98 m

Step-by-step explanation:

The angle of depression is 5°

The horizontal distance from the airplane to the atoll is 4629 meters.

We need to find the height of the plane.

If we consider a triangle. 4629 meters will be the base and angle is 5°. Let h is the height of the plane. Using trigonometry to find it :

$\tan\theta=\dfrac{x}{4629 }\\\\\tan(5)=\dfrac{x}{4629 }\\\\x=\tan(5)\times 4629 \\\\x=404.98\ m$

So, the height of the plane is 404.98 m.

6 0

3 years ago

In the Ardmore Hotel, 20 percent of the guests (the historical percentage) pay by American Express credit card. (a) What is the

xxMikexx [17]

Answer:

(a) The expected number of guests until the next one pays by American Express credit card is 4.

(b) The probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

Step-by-step explanation:

The random variable X can be defined as the number of guests until the next one pays by American Express credit card

The probability that a guest paying by American Express credit card is, p = 0.20.

The random variable X follows a Geometric distribution since it is defined as the number of trials before the first success.

The probability mass function of X is:

$P(X=x)=(1-p)^{x}p;\ x=0,1,2,3...,\ 0$

(a)

The expected value of a Geometric distribution is:

$E(X)=\frac{1-p}{p}$

Compute the expected number of guests until the next one pays by American Express credit card as follows:

$E(X)=\frac{1-p}{p}$

$=\frac{1-0.20}{0.20}$

$=4$

Thus, the expected number of guests until the next one pays by American Express credit card is 4.

(b)

Compute the probability that the first guest to use an American Express is within the first 10 to checkout as follows:

$P(X=10)=(1-0.20)^{10}\times0.20$

$=0.1073741824\times 0.20\\=0.02147483648\\\approx0.0215$

Thus, the probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

3 0

3 years ago