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sladkih [1.3K]
3 years ago
12

What is the circumference of the circle if r = 3.5 feet? Use 22 7 for π.45 pts

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
6 0
We know, Circumference of a Circle = 2πr
C = 2 * 22/7 * 3.5
C = 2 * 22/2
C = 2 * 11
C= 22

In short, Your Answer would be 22 Feet 

Hope this helps!
Komok [63]3 years ago
3 0
3.5 x 3.14(pi) = 10.99
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How do you solve it?
Elis [28]

At heart we're being asked for a line through two points,


(40^\circ \textrm{ C}, 355 \textrm { m/s}) \quad \textrm{and} \quad (49^\circ \textrm{ C}, 360 \textrm { m/s})


In general the line through (a,b) and (c,d) is


(y-b)(c-a)=(x-a)(d-b)


Check that you understand why both (a,b) and (c,d) are on this line.


Here our indepedent variable, instead of x, is T, temperature. Our dependent variable is v, velocity. Substituting,


(v - 355)(49 - 40) = (T - 40)(360 - 355)


9(v - 355) = 5(T - 40)


v-355 = \frac 5 9 T - \frac{200}{9}


v= \frac 5 9 T - \frac{200}{9} + 355


v= \frac 5 9 T + \frac{2995}{9}


That's our answer; let's check it.


When T=40, v = (5/9)40 + (2995/9) = 355 good


When T=49, v= (5/9)49 + (2995/9) = 360 good




7 0
2 years ago
What is an equation of the line that passes through the point (5,4)(5,4) and is parallel to the line 6x-5y=156x−5y=15?
Westkost [7]

Answer:

7x+y=0

x+6y=5

x+y=0

Step-by-step explanation:

5 0
3 years ago
Answer asap! will give brainliest! question is in pic
lana [24]

Answer:

UW=14

Step-by-step explanation:

First we know that UV+VW=UW, so:

4+x+10=2x+14

Solve for x first:

x+10=2x+10

10=x+10

x=0

Then, substitute the X

2(0+14)=14=UW

To check your answer, substitute and add UV and VW

4+(0)+10

14

<em>Hope this helped! Have a good day!</em>

4 0
3 years ago
It takes Juwan exactly 35 minutes by car to get to his grandmother's the nearest parking area is 4 minute walk from her apartmen
liq [111]

It takes him 35 + 4 = 39 total minutes one way, so it would take him 39 x 2 = 78 minutes for 1 round trip.

convert 5 hours and 12 minutes into minutes: 1 hour = 60 minutes.

5 hours x 60 minutes = 300 minutes.

300 + 12 = 312 total minutes for the week.

Divide total minutes by minutes per round trip:

312 / 78 = 4 round trips total

4 0
3 years ago
Read 2 more answers
3x squared minus 12x=-54
Alex777 [14]
◆ Quadratic Equations ◆

Hey !!

Check the attachment.
Hope it helps you :)

7 0
3 years ago
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