3 years ago

What is the value of the 3 in 63?

Mathematics

2 answers:

Rina8888 [55]3 years ago

6 0

Answer:

ones

Step-by-step explanation:

6=60

3=3

so it is in the ones place

Gelneren [198K]3 years ago

5 0

6=60. The three is in the ones place

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a figure has the coordinates (0,0) (0,15) and (8,0). If the figure is rotated about the y- axis, what is the volume of the shape

AfilCa [17]

Answer:

120

Step-by-step explanation:

15 x 16/2

You double 8 because your rotating around the y-axis

3 0

3 years ago

The vertex of the parabola below is at the point (1, 3), and the point (2, 6) is on the parabola. What is the equation of the pa

lbvjy [14]

Easily we can use formula y=(x-h)^2 +k

as equation of a parabola if vertex was (h,k):

Y=(x-1)^2 + 3

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3 0

3 years ago

If the given values in a right triangle are cos A =

Vlad1618 [11]

See the picture attached to better understand the problem

we know that
in the right triangle ABC
cos A=AC/AB
cos A=1/3
so
1/3=AC/AB----->AB=3*AC-----> square----> AB²=9*AC²----> equation 1

applying the Pythagoras Theorem
BC²+AC²=AB²-----> 2²+AC²=AB²---> 4+AC²=AB²----> equation 2

substitute equation 1 in equation 2
4+AC²=9*AC²----> 8*AC²=4----> AC²=1/2----> AC=√2/2
so
AB²=9*AC²----> AB²=9*(√2/2)²----> AB=(3√2)/2

the answer is
the hypotenuse is (3√2)/2