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Bad White [126]
3 years ago
5

Given that x =4 and y= 1 over 2, find the value of 2x²- 3xy

Mathematics
2 answers:
jarptica [38.1K]3 years ago
7 0

Answer:

26

Step-by-step explanation:

Lubov Fominskaja [6]3 years ago
6 0

Step-by-step explanation:

given that x=4 and y=1/2

2*4*4 - 3*4*(1/2) = 32 - 6 = 26

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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
What's the sqaure root of 4/49
adoni [48]
Your Answer is 2/7. I hope this helped
8 0
3 years ago
A ray that divides an angle into two angles that both have the same measure.
VARVARA [1.3K]

Answer:

Angle bisector

Step-by-step explanation:

Bisector means that the two angles have the same measure and it is an angle bisector because it is separating angles.

3 0
3 years ago
What is the probability of choosing a king from a deck of cards? Type your answer as a fraction.
Vikki [24]

Answer:

4/52 or 1/13

Step-by-step explanation:

there are only 4 kings; diamond, Heart, Spades and Clubs.

4 0
3 years ago
Read 2 more answers
in class of 24 students, 13 students sold over 150 raffle tikets each, and the rest of the class sold about 60 tikets each. the
dezoksy [38]
To find the answer we have to calculate total tickets.
We know that 13 students sold 150 tickets and rest sold 60 each.
First I want to find ticket sold by 13 student, so
13*150=1950
Rest of class is 24-13=11
Ticket sold by rest of class is
11*60=660
Total sold ticket is
1950+660=2610 they rich their goal
8 0
3 years ago
Read 2 more answers
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