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Ganezh [65]
3 years ago
13

Steven has 14 steel balls of equal weight. If he puts 9 of them in one pan of a pan balance and the rest along with a weight of

20 grams in the other pan, the pans balance each other. What is the weight of one steel ball?
Mathematics
1 answer:
nikklg [1K]3 years ago
7 0

Answer:

answer os 5 grams

Step-by-step explanation:

i took the test

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Respuesta de (-0.5)²
Vladimir79 [104]

Answer:

0.25

Step-by-step explanation:

we have

(-0.5)^2

we know that

-0.5=-\frac{1}{2}

substitute

(-\frac{1}{2})^2=(-\frac{1}{2})(-\frac{1}{2})

Remember that

(-1)(-1)=1\\(-1)(1)=(-1)

so

(-\frac{1}{2})(-\frac{1}{2})=\frac{1}{4}=0.25

5 0
3 years ago
Answers need to be fractions, if they are not whole numbers. No decimals
klemol [59]

The Slope of lines parallel to line is 1/2 and the Slope of lines perpendicular  to line is -2.

<h3>What is the equation of a straight line ?</h3>

An equation that can be written in the form of y = mx+c

where m is the slope of the line

and c is the intercept on y axis

The equation given in the question is

y=1/2x−7

in this the slope = 1/2

Intercept = -7

For parallel Lines

For a parallel line , the slope of the line is same

and is given by  m = 1/2

For a perpendicular line

Slope will be equal to

-1/m

here -1/m = -2

Therefore the slope for perpendicular line is -2.

To know more about Straight Line equation

brainly.com/question/959487

#SPJ1

7 0
2 years ago
I need help on this problem!?
nata0808 [166]
156/4=39 miles per gallon. 39*12 gallons is 468 miles, and 6 gallons is 234.
6 0
3 years ago
Write (3 − 7i) − (-11 + 5i) as a complex number in standard form.
Katyanochek1 [597]
I believe its 10-6i im pretty sure
7 0
4 years ago
Read 2 more answers
The circular opening of a tunnel has a circumference of 36 meters. What is the diameter of the tunnel?
Elza [17]
C=2(3.14159...)R
You’re given the circumference, so all you need to do is plug that in and simplify.
36=2(3.14159...)R
36=6.28R
36/6.28=R
R is about 5.73
7 0
3 years ago
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