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alexdok [17]
2 years ago
6

The legs of a right triangle are 4 units and 7 units. What is the length of the hypotenuse? (4 points) Group of answer choices s

quare root 33 units square root 65 units 33 units 65 units
Mathematics
1 answer:
morpeh [17]2 years ago
5 0

Answer:

65 square root

Step-by-step explanation:

I’m smart

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Solve the compound inequality and write the solution in interval notation: 34x−3≤3 or 25(x+10)≥0.
kirza4 [7]

Answer

x≤3/17 or x≥-10

Step-by-step explanation:

3 0
3 years ago
The volume of a cylinder is 176 π cm and its height is 11 π cm.
Liula [17]

Answer:

r = sqrt(16/pi)

Step-by-step explanation:

Cylinder formula = r^2 x pi x height

176 pi/11pi = 16

16 = r^2 x pi

16/ pi = r^2

r = sqrt(16/pi)

6 0
2 years ago
How do you put an equation in slope-intercept form into standard or point-slope form?
RSB [31]

Answer:

Write in slope-intercept form,  y = m x + b

y=mx+b.

−

Step-by-step explanation:

8 0
3 years ago
Suppose that a college determines the following distribution for X = number of courses taken by a full-time student this semeste
lidiya [134]

Answer:

E(X) = \sum_{i=1}^n X_i P(X_i) = 3*0.07 +4*0.4 +5*0.25 +6*0.28= 4.74In order to find the variance we need to calculate first the second moment given by:

E(X^2) = \sum_{i=1}^n X^2_i P(X_i) = 3^2*0.07 +4^2*0.4 +5^2*0.25 +6^2*0.28= 23.36And the variance is given by:

Var(X) = E(X^2) +[E(X)]^2 = 23.36 -[4.74]^2 = 0.8924

And the deviation would be:

Sd(X) =\sqrt{0.8924} =0.9447

Step-by-step explanation:

Previous concepts

The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete.

The variance of a random variable X represent the spread of the possible values of the variable. The variance of X is written as Var(X).  

Solution to the problem

For this case we have the following distribution given:

X          3      4       5        6

P(X)   0.07  0.4  0.25  0.28

We can calculate the mean with the following formula:

E(X) = \sum_{i=1}^n X_i P(X_i) = 3*0.07 +4*0.4 +5*0.25 +6*0.28= 4.74

In order to find the variance we need to calculate first the second moment given by:

E(X^2) = \sum_{i=1}^n X^2_i P(X_i) = 3^2*0.07 +4^2*0.4 +5^2*0.25 +6^2*0.28= 23.36

And the variance is given by:

Var(X) = E(X^2) +[E(X)]^2 = 23.36 -[4.74]^2 = 0.8924

And the deviation would be:

Sd(X) =\sqrt{0.8924} =0.9447

3 0
3 years ago
Find the number represented by the prime factorization. 2^2 x 3^2 x 5​
ra1l [238]

Answer:4x14

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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