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Ksivusya [100]
4 years ago
5

Which function is negative for the interval (–1, 1]?

Mathematics
2 answers:
Taya2010 [7]4 years ago
7 0
I think it’s the second one
IgorC [24]4 years ago
3 0

⇒The Interval in which we have to find the function is Negative is (-1,1].

→(-1,1]=Semi closed or Semi Open Interval, Point -1, is not included in the set, but 1 is included in the set.

 ⇒ The meaning of negative here is,that either for positive or negative value of x , the value of f(x), that is y Should be negative.

⇒y is negative in third and fourth Quadrant.

Graph -(2), is the function , in which the function is negative for the interval (–1, 1].

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In the diagram, R, S, and T are all points of tangency. What is the perimeter of Triangle<br> XYZ?
Molodets [167]

Answer:

54 cm

Step-by-step explanation:

Perimeter = TZ + TX + RX + RY + SY + SZ

TZ = 5 cm

TX = 13 cm

RY = 9 cm

RX = TX = 13 cm (tangents drawn from and external point)

SY = RY = 9 cm (tangents drawn from and external point)

SZ = TZ = 5 cm (tangents drawn from and external point)

Plug in the values:

Perimeter = 5 + 13 + 13 + 9 + 9 + 5 = 54 cm

7 0
3 years ago
How do I cancel my subscription. I don't see the option to do this under "Subscriptions". Thanks.
Kaylis [27]

Answer:

I just looked it up, apparently this is how. I've never cancelled a Brainly subscription before, but hopefully this helps.

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4 0
3 years ago
Read 2 more answers
I need help with these.
sattari [20]

Answer:

See below.

Step-by-step explanation:

1.

5^2 + 12^2 = x^2

25 + 144 = x^2

169 = x^2

x = 13

2.

3^2 + x^2 = [sqrt(10)]^2

9 + x^2 = 10

x^2 = 1

x = 1

3.

1^2 + x^2 = 4^2

1 + x^2 = 16

x^2 = 15

x = sqrt(15)

4.

[sqrt(27)]^2 + x^2 = 6^2

27 + x^2 = 36

x^2 = 9

x = 3

5.

15/5 = c/sqrt(29)

5c = 15 * sqrt(29)

c = 3sqrt(29)

6.

26/13 = x/12

2 = x/12

x = 24

7 0
3 years ago
Vector A⃗ has magnitude 5.00 and is at an angle of 36.9∘ south of east. Vector B⃗ has magnitude 6.40 and is at an angle of 20.0∘
GrogVix [38]

Answer:

  (x, y) = (4, -3)

Step-by-step explanation:

Relative to straight east with angles measured CCW, the vector is ...

  5∠-36.9° = 5(cos(-36.9°), sin(-36.9°)) = 5(0.8, -0.6) = (4, -3)

4 0
4 years ago
Can you help me with 17,18,19,20,21
iren [92.7K]

Answer:

See Below

Step-by-step explanation:

#17. You just have to plot the points, this should be super easy. Go to the left 6 (because it is negative) then up four. This is M. Then go right 5 and up 4 and plot A.

#18. Point T is a reflection of A over the X-axis. This is quite simple as well. All you need to do it make your Y coordinate negative? Why Y? You'll see. You need to essentially "fold" the graph at the X line, so your Y value goes from up top at 4 to below the X axis as we're reflecting over the X line. I hope that makes sense. T should be at 5,-4

#19 This is the same process as 18, Over the X coordinate. Make Y negative and plot it. It should be H= -6,-4

#20 You can get this from the answers from #18 and #19.

#21. The formula is Base*2+Height*2, or Base+Base+Height+Height. You want the distance around. I'll have you figure this out, but if you get comment and I'll check back. How many steps do you go up from T to A? How about over from H to T 9 or (M to A)? Once you find how many units your base and height are, use the formula for perimeter to find the answer. Hope this helps! :)

6 0
3 years ago
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