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zhannawk [14.2K]
3 years ago
13

4+(-3)

Mathematics
1 answer:
Ainat [17]3 years ago
4 0
So you It’s like this: you owe somebody three dollars (-3) but then that same person owes you four dollars 4 instead of exchanging a bunch of money around 4+(-3) how much is owed to you? $1...
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A light-rail service claims to be on time 98% of the time. If Jeanette takes the light-rail 40 times one mouth, how many times c
Airida [17]
If Jeanette take its 40 times in one month she would be on time 39 (39.2) times.

NO, 
the light-rails claim is not accurate if she is late 6 times. 

The light rails claim would be accurate if it stated the service is on time 85% of the time.
7 0
3 years ago
Tom and Jerry both earn the same monthly salary. Each month: Tom saves 35% of his salary. Jerry spends of his salary and saves t
sineoko [7]

Answer:

How much did Jerry spent out of his salary

Step-by-step explanation:

Please complete the question

4 0
2 years ago
Find the inverse function of h(x)=2x-1/3
Ksenya-84 [330]
To find inverse, you switch x and y, and solve for y
Original: y=2x-1/3
Now: 
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7 0
3 years ago
PLEASE HELP
Marat540 [252]

Answer:

Triangle DEF is a right, scalene triangle. It is not isosceles, obtuse, acute, or equilateral

Step-by-step explanation:

All we know about m and n are that they are not equal to each other and they are positive. This was given in the problem. See image. Once it is graphed you can see on the graph the lengths of DE and EF. Use Pythagorean theorem to calculate DF. see image.

DE is horizontal and EF is vertical, so you can see their slopes or calculate using a formula. Calculate the slope of DF. Slope is y-y on top of a fraction and x-x on the bottom of the fraction.

Lastly, use midpoint formula to find the midpoints. Average the x's and average the y's to find the x- and y-coordinates of the midpoints. See image.

Finally, DEF is a right triangle. The graph as well as the slopes show us that DE and EF form a right angle. So DEF must be a right triangle (and not obtuse nor acute) We were told that m doesNOT equal n, so the triangle cannot have two equal sides, so it cannot be isosceles (2 equal sides) nor equilateral (3 equal sides) It has 3 different lengths of sides; that is called scalene.

4 0
2 years ago
Please help thank you.
ki77a [65]
Hello!

Let O be the center of the sphere, A the tangency point and B the location of the satellite.

m<ABO = 1/2m(b) = 1/2 * 138 = 69

m<OAB = 90

m<AOB = 180 - 90 - 69 = 21

21 * 2 = 42

The answer is 42°

Hope this helps!
7 0
3 years ago
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