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LUCKY_DIMON [66]
3 years ago
11

10+2 =12 12-2=10 what are these operations called?

Mathematics
1 answer:
kipiarov [429]3 years ago
4 0
These operation are called reverse operation......... I hope this helps 
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Which functions are linear?
wariber [46]

Answer:

all are linear.

I'm sure all are linear.

Because linear is in the form:

y = mx + c

And all have the same form.

7 0
3 years ago
How do i delete questions.............
tia_tia [17]

Answer:

lol same

Step-by-step explanation:

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Find the perimeter of given figure:
Afina-wow [57]

Answer:

≈ 18 cm

Step-by-step explanation:

1.  Find the length of half a circle of radius 3.5 cm:

\tt \cfrac{C}{2}= \cfrac{2\pi r}{2}=\pi r=3.14\cdot3.5=10.99 \ cm

2.  Find the length of the diameter:

D = 2r = 2 · 3.5 = 7 cm

3. Find the perimeter of the figure:

P = 10.99 + 7 = 17.99 ≈ 18 cm

7 0
3 years ago
A team of 4 people participates in a 400-yard relay race. each team member runs the same distance. the team completes the race i
umka2103 [35]
Number of people participating in the relay race = 4
Total distance ran by 4 people of a team = 400 yards
Let us assume the distance run by each member = x yards
Then
4x = 400
x = 400/4
x = 100 yards
Total time taken to rum the full distance = 53.2 seconds
Average running time of each person = 53.2/4
                                                            = 13.3 seconds.
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3 years ago
Evaluate the following expression (-3)^-2
OleMash [197]
<h3>Answer: the fraction 1/9</h3>

It is approximately equal to 0.1111

=================================

To get this answer, we use the rule

x^{-k} = \frac{1}{x^k}

The negative exponent tells us to apply the reciprocal to get the exponent to be positive.

So,

(-3)^{-2} = \frac{1}{(-3)^2}\\\\(-3)^{-2} = \frac{1}{9}

Squaring -3 means you square the negative as well

(-3)^2 = (-3)*(-3) = 9

8 0
3 years ago
Read 2 more answers
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