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love history [14]
3 years ago
8

7. (0) + (-9) * (+8) =

Mathematics
1 answer:
ivolga24 [154]3 years ago
7 0

Answer:

-72

Step-by-step explanation:

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1. Margaret sold shoes for $200. Margaret increases
Alika [10]

Answer:

$400

Step-by-step explanation:

100% of 200 is 200 so combine them to get 400.

3 0
3 years ago
Read 2 more answers
A body and tackle with a velocity ratio of 5 is used to raise a mass of 50kg through a vertical distance of 20n at a steady rate
matrenka [14]

a. Distance moved by effort = 1 meter

b. Work done by effort = 80 Joules

c. Losses in energy = 18 Joules

<h3>How to determine the parameters</h3>

a. Note that velocity ratio is defined as the ratio of a distance through which any part of a machine moves to the distance moved by its parts

Velocity ratio = distance moved by the effort/distance moved by the body

Where velocity ratio = 5

vertical distance = 20cm

Distance moved by effort = 5 × 0. 20 = 1 meter

b. Formula for work done is given as ;

Work done = Effort × distance moved by effort

Work done = 80 × 1

Work done = 80 Newtons

c. First, let's find the work output

Work output = m g h

Work output = 50 × 9.8 × 0. 20

Work output = 98 Joules

Losses in energy = Work output - work done

Losses in energy = 98 - 80

Losses in energy = 18 Joules

Learn more about work done here:

brainly.com/question/25573309

#SPJ1

7 0
2 years ago
Can somebody please help me
Nataly [62]

Answer:

The probability of drawing the first pink ball is \frac{3}{10}.

Because you drew that first pink ball, there are two pink balls left and the total number of balls left is nine.

Hence, the probability of drawing another pink ball after drawing the first pink ball would be:

\frac{3}{10} *\frac{2}{9} =\frac{1}{15}

5 0
2 years ago
Please help meeeee.....
dimulka [17.4K]
The answer should be 4
5 0
3 years ago
What is the slope of these two points (2,-6) and (5,-12
Blizzard [7]

Step-by-step explanation:

slope= <u>y</u><u>²</u><u>-</u><u>y</u><u>¹</u>

x²-x¹

<u>-12--6</u>

5-2

-12+6

6 0
3 years ago
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