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pogonyaev
3 years ago
5

If tan x = , and 0 < x < , what is cos(x – 3x)?

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0

Answer:cos  ( − 2 x )

Step-by-step explanation: Subtract  3 x  from  x .

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If the radius of a cylinder is doubled and the height is tripled, what happens to the volume?
Alecsey [184]

Answer is multiplied by 12 (B)


Here is an explanation: due to the doubling of the radius, this increases the volume by a factor of four. Also, tripling the height has increased the volume by a factor of three. Therefore, the the new cylinder will have 12 times the volume of the original.
6 0
3 years ago
Is there an association between the use of computerized system and hospital mortality? In a large-scale hospital study, the stud
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8 0
3 years ago
In the diagram, PN is the perpendicular bisector of AB and is also the angle bisector of
Svet_ta [14]
The perpendicular bisector is a line segment that is drawn from a vertex of an angle to the midpoint of another line segment creating a right triangle or a 90° angle in the process. Suppose AB is the base segment of the triangle, therefore the perpendicular sector is also the angle bisector of the other angle of the triangle, supposedly angle C. Angle bisector is a line segment that divides the angle into two equal parts. Imagine a line drawn from the top vertex C extended down to the midpoint of line AB. That is the perpendicular and angle bisector.
7 0
3 years ago
What is the h?<br> h/6 = 20/24
Mademuasel [1]

Answer:

h = 5

Step-by-step explanation:

\frac{h}{6}  =  \frac{20}{24}  \\ 24 \times h = 20 \times 6 \\ 24h = 120 \\ h =  \frac{120}{24}  \\ h = 5

5 0
3 years ago
John and Erica each have a marble collection. • The number of marbles in John's collection can be represented by x. • The number
tangare [24]

Answer: John has 52 marbles in his collection

Step-by-step explanation:

Step 1

LET The number of marbles in John's collection can be represented by x.  The and the number of marbles in Erica  collection can be represented as =4x+ 10

The total number of marbles in both collections is 270 such that the expression to solve the equation will be

JOHN + ERICA = 270marbles

X + 4X+ 10= 270

Step 2--- solving

X + 4X+ 10= 270

5X+ 10= 270

5X= 270-10

5X= 260

X= 260/5

=52

John has 52 marbles in his collection

Erica has 4x + 10 = 4x 52 + 10=218 marbles

4 0
3 years ago
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