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Mama L [17]
3 years ago
6

Calcula la longitud de la variable "x"​​

Mathematics
1 answer:
Olenka [21]3 years ago
7 0

Answer:

x=20

Step-by-step explanation:

30°-60°-90°Δ

a=10

b=20

c=10\sqrt{3}

x=b

x=20

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At work jenine helps 6 customers every 40 minutes. How many customers can she expect to help in 240 minutes before her break?
Lady bird [3.3K]

Answer: 36 customers

Step-by-step explanation:

I'm pretty sure because you have to multiply 40 x 6 which is 240 and 6 x 6 which is 36 to get your answer.

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3 years ago
A bag contains 40 red and green marbles. The ratio of red marbles to
Hunter-Best [27]

Answer:

39/40

Step-by-step explanation:

Since 39 out of 40 marbles are green, the probability of randomly choosing green is 39/40.

However, the probability becomes 100% when you look into the bag and choose a green marble. (Unless you are blind or unable to distinguish blue from green, in which case the probability remains 39/40.)

5 0
2 years ago
Read 2 more answers
The points L(10,9)L(10,9), M(10,-5)M(10,-5), N(-1,-5)N(-1,-5), and O(-1,9)O(-1,9) form rectangle LMNOLMNO. Which point is halfwa
Inessa [10]
You are trying to find the halfway point between OO and NN.
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4 0
3 years ago
The angle θ1\theta_1 θ 1 ​ theta, start subscript, 1, end subscript is located in Quadrant II\text{II} II start text, I, I, end
melomori [17]

Answer:

\dfrac{3\sqrt{13}}{11}

Step-by-step explanation:

Given that the angle \theta_1  is located in Quadrant II; and

\cos(\theta_1)=-\dfrac{2}{11}

In Quadrant II, x is negative and y is positive.

\cos(\theta)=\dfrac{Adjacent}{Hypotenuse},\sin(\theta)=\dfrac{Opposite}{Hypotenuse}\\$Adjacent=-2\\Hypotenuse=11\\

To find \sin(\theta_1), we first determine the opposite angle of \theta_1.

This will be done using the Pythagoras theorem.

Hypotenuse^2=Opposite^2+Adjacent^2\\11^2=Opposite^2+(-2)^2\\Opposite^2=121-4=117\\Opposite=\sqrt{117}=3\sqrt{13}

Therefore:

\sin(\theta_1)=\dfrac{Opposite}{Hypotenuse}=\dfrac{3\sqrt{13}}{11}

6 0
3 years ago
In a study of 792 randomly selected medical malpractice​ lawsuits, it was found that 508 of them were dropped or dismissed. Use
miv72 [106K]

Answer:

H0:p=0.5

H1:p>0.5

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Test statistic:

z=(0.6276-0.5)/sqrt(0.5*(1-0.5)/784)

z=7.14

p-value=P(z>7.14)=0

Step-by-step explanation:

8 0
3 years ago
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