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2 years ago

Quadrilateral QRST is a square. If the measure of RS is 12x + 5 and QT is 8x + 15. find the value of QR

Mathematics

2 answers:

dybincka [34]2 years ago

8 0

Answer:

Step-by-step explanation:

valentina_108 [34]2 years ago

7 0

Answer:

Step-by-step explanation:

I got you the answer is 35.

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percent- 2/5

Step-by-step explanation:

you divide 30 by 12 because he practices piano 12/30 days of the month

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3 years ago

Which is the quotient of 5 ÷ 1/4 ? Use the model to help. due TOMMOROW help

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3 years ago

The number of typing errors made by a typist has a Poisson distribution with an average of seven errors per page. If more than s

Aleks [24]

Answer:

0.599 is the probability that a randomly selected page does not need to be retyped.

Step-by-step explanation:

We are given the following in the question:

The number of typing errors made by a typist has a Poisson distribution.

$\lambda =7$

The probability is given by:

$P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}$

We have to find the probability that a randomly selected page does not need to be retyped

P(less than or equal to 7 mistakes in a page)

$P( x \leq 7) = P(x =1) + P(x=1) +...+ P(x=6) + P(x = 7)\\\\= \displaystyle\frac{7^0 e^{-7}}{0!} + \displaystyle\frac{7^1 e^{-7}}{1!} +...+ \displaystyle\frac{7^6 e^{-7}}{6!} + \displaystyle\frac{7^7 e^{-7}}{7!} \\\\= 0.59871\approx 0.599$

Thus, 0.599 is the probability that a randomly selected page does not need to be retyped.

4 0

3 years ago

-4(11x+2)=80<br> Solve for x

jek_recluse [69]

Answer: x=-2

Step-by-step explanation:

To solve for x, we want to isolate x.

-4(11x+2)=80 [distribute]

-44x-8=80 [add both sides by 8]

-44x=88 [divide both sides by -44]

x=-2

Now, we know that x=-2.

3 0

2 years ago

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Quadrilateral QRST is a square. If the measure of RS is 12x + 5 and QT is 8x + 15. find the value of QR ​

Quadrilateral QRST is a square. If the measure of RS is 12x + 5 and QT is 8x + 15. find the value of QR