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3 years ago

Plese help plese plese

Mathematics

2 answers:

Naya [18.7K]3 years ago

8 0

B 25% percent because 15/60 is 25

Aleks [24]3 years ago

4 0

Answer: C
15 seats were empty, so 45 out of 60 seats were taken. 45 divided by 60 is 0.75, which is 75%

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Determine the volume of the parallelepiped with one vertex at the origin and the three vertices adjacent to it at (2, â1, â1), (

valentinak56 [21]

Answer:

Step-by-step explanation:

Here is the complete question

Find the volume of the parallelepiped with one vertex at the origin and adjacent vertices at (1, 0, -3), (1, 2, 4), and (5, 1, 0).

Solution

We find the volume of the parallelepiped by making a 3 × 3 column matrix whose columns are the corresponding coordinates of the vertices of the parallelepiped.

So, (1, 0, -3), (1, 2, 4) and (5, 1, 0)

$A = \left[\begin{array}{ccc}1&1&5\\0&2&1\\-3&4&0\end{array}\right]$

The determinant of A is the volume of the parallelepiped. So,

detA = 1(2 × 0 - 4 × 1) - 1(0 × 0 - (-3) × 1) + 5(0 × 4 - (-3) × 2)

= 1(0 - 4) - 1(0 + 3) + 5(0 + 6)

= 1(-4) - 1(3) + 5(6)

= -4 - 3 + 30

= 23

So the volume of the parallelepiped is 23

4 0

3 years ago

Suppose you roll not die. Find the Probability of not rolling an even number

irina [24]

I think you mean roll a die. To do this you would find the number of non-even numbers and divide that number by the total amount of numbers on the die. On a normal six-sided die these numbers would be 1,3,and 5, so your probability of not rolling an even number would be 50%

7 0

3 years ago

Please Help!! ASAP 50 POINTS!!!!!!!!

soldier1979 [14.2K]

The statement will be m∠ABC = m∠GHI.

Reason: ∠ABC ≅ ∠GHI

4 0

3 years ago

I dont understand bisectors

Masteriza [31]

Answer:

Step-by-step explanation:

Number one i dont understand

Number two is 4 (equal to the other angle across it)

number 3 is 7.5 (same idea)

number four is 9 (same idea

Number 5 is Isosceles Triangle ( two angles are equal to a bigger base)

4 0

3 years ago

The product of a number and 9 less than the number is 90. find the number.

Arte-miy333 [17]

Factors of 36 that differ by 9 are 12 and 3;
12*3 = 36 
Or you could write x(x - 9) - 36 = (x - 12)(x + 3) = 0 
The number was 12

5 0

4 years ago