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GaryK [48]
2 years ago
11

Simplify 5 (3 1/5​ +2 4/5​−0.6)

Mathematics
1 answer:
never [62]2 years ago
7 0

Step-by-step explanation:

l dont understand your question

is it 3 and a fifth or 31/5

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5<br> 1.<br> Explain why the slope of line a is.
dexar [7]
The slope of the line is 6/2 because if you start at the first point you go over 6 in the x direction (right) and then you have to go up in the y direction (up)
3 0
2 years ago
Given that P = (-4, 11) and Q = (-5, 8), find the component form and magnitude of vector QP
Svetach [21]
The given points are
P = (-4,11)
Q = (-5,8)

The x-component of vector QP is
-4 - (-5) = 1
The y-component of vector QP is
11 - 8 = 3

The vector QP is 
(1,3) or
\vec{QP} = \hat{i} + 3\hat{j}

The magnitude of the vector is
√(1² + 3²) = √(10)

Answer:
\vec{QP} = \hat{i}+3\hat{j} \,\, or \,\, (1,3)
The magnitude is √(10).

8 0
2 years ago
A set of pulleys is used to lift a piano with a mass of 102 kg. The piano is lifted 3 meters in 1 minutes. How much power is use
agasfer [191]

Answer:

50.031 watts

Step-by-step explanation:

Formula

Power = Force * distance / time

The units are critical

distance = meters

time = seconds

force = newtons = kg * m / s^2

Solution

F = m * a

a = 9.81

m = 102 kg

F = 102 * 9.81 = 1000.62 Newtons

T =  minute = 60 sec/min * 1 min

T = 60 seconds

d = 3 meters

Power = 1000.62 * 3 / 60

Power = 50.031

3 0
2 years ago
If f(x) = -2(5)*, what is f(2)?
Effectus [21]

Answer:

-2(5)^2

-2(25)

-50

Step-by-step explanation:

7 0
3 years ago
Apply the distributive property to create an equivalent expression. 5•(-2w-4)
xeze [42]

=5(-2w)-5x4

=-5x2w-5x4

answer: =-10w-20

4 0
3 years ago
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