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Nikitich [7]
3 years ago
5

Which number is rational, an integer, and a real number?

Mathematics
1 answer:
allochka39001 [22]3 years ago
6 0
B is the correct if this multiple choice
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(х + 40)°<br> (2x + 20°<br> 3х<br> 6x"
kogti [31]

Answer:

Step-by-step explanation:

(х+40)°(2x+20°

3 0
2 years ago
A planter weighs 2 pounds and holds 3 pounds of soil. write two equivalent expressions for the total weight of nine planters. th
Anastasy [175]
Planters = (2*9)+(3*9) = 45 the answer is 45
5 0
3 years ago
Find the y-intercept of the line which passes through (-2,-2) and (2,-4).
Mkey [24]

Answer:-4,2

Step-by-step explanation:

8 0
3 years ago
What net force will make a 5 kg bowling ball accelerate by 1.5 m/s square 2?
s2008m [1.1K]

In pure translation or in roll without slip?

In pure translation, just use Fnet = m*a.  Fnet = 7.5 Newtons

In roll without slip it has effectively more inertia than 5 kilograms.  The effective inertia can be found as:

m_effective = m + I/r^2

For a uniform solid sphere, I = 2/5*m*r^2

So m_effective = 7/5*m

To make a 5 kg bowling ball accelerate at 1.5 m/s^2 in roll without slip, it requires Fnet = 10.5 Newtons, and this ASSUMES that all forces causing the net force on it have lines of action through its center of mass (most common case).

i hope this is what ur looking for

3 0
3 years ago
A farmer has 300 ft of fencing with which to enclose a rectangular pen next to a barn. The barn itself will be used as one of th
Katarina [22]
Let x represent the length of the side of the pen that is parallel to the barn. Then the area (y) will be
.. y = x(300 -x)/2
This describes a downward opening parabola with zeros at x=0 and x=300. The vertex (maximum) will be found at the value of x that is halfway between those, x = 150.

For that value of x, the pen area is
.. y = 150(300 -150)/2 = 150^2/2 = 11,250 . . . . . square feet.

5 0
3 years ago
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