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Aleksandr [31]
3 years ago
15

What is the answer to this?

Mathematics
2 answers:
irga5000 [103]3 years ago
6 0
I’m sure it’s (-1/3)
Alisiya [41]3 years ago
5 0

Answer:

i think it was -(1/3)

Step-by-step explanation:

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Tom [10]
C because the dot in the middle is filled, aka it’s a equal to answer and the arrow is pointing higher so it’s greater than or equal to. so x is greater than or equal to -3
4 0
3 years ago
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Guided Practice
Illusion [34]

Answer:

C.

y=2 · 3xy equals 2 times 3 superscript x baseline

Step-by-step explanation:

y=2 ·  3 xy equals 2 tim

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2 years ago
Brainliest is given to the correct answer!
OlgaM077 [116]

Answer:

a. p = 2\pi r + 8r

b. r = \frac{p}{2\pi + 8}

Step-by-step explanation:

a. Radius of semicircle (r) = r

Diameter of semicircle (d) = 2r

Length of rectangle (l) = 2*diameter of semicircle = 2*2r = 4r

Distance around the track (p) = circumference of circle + 2(l)

Note: the two semicircles of the track = 1 full circle

Circumference of full circle = πd = π*2r = 2πr

Distance around the track:

p = 2πr + 2(4r)

p = 2πr + 8r

b. Rewriting the formula to make radius, r, the subject of the formula in terms of distance around the track.

p = 2\pi r + 8r

Factor out r

p = r(2\pi + 8)

Divide both sides by (2π + 8)

\frac{p}{2\pi + 8} = \frac{r(2\pi + 8)}{2\pi + 8}

\frac{p}{2\pi + 8} = r

r = \frac{p}{2\pi + 8}

6 0
3 years ago
Using a = 20, b = 15<br> and c = 25, is triangle<br> ABC a right triangle?<br> Yes<br> No
Alchen [17]

Answer:

Yes

Step-by-step explanation:

400+225=625

625=25^2

8 0
3 years ago
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Anton [14]

Answer:

4 1/3 hours

Step-by-step explanation:

Since he will have completed 7 hours AFTER 2 2/3 more hours, he has completed 7- 2 2/3 = 4 1/3 hours so far

4 0
2 years ago
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