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densk [106]
3 years ago
12

Help.................??

Mathematics
1 answer:
Irina-Kira [14]3 years ago
6 0
Distribute it out. you should end up with (y^2+7y) + (5y+35) add the 7y and the 5y to get 12y. you will have y^2+12y+35. tbh i have no idea what to do from there. its been so long since i have studied this
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A circle has a radius of 11 in. Find the length s of the arc intercepted by a central angle of 11°.
Travka [436]

Answer:

Step-by-step explanation:

11 degrees to radians: 1 degree =57.296 radians

L = (11 degrees)/(57.296) x (11 in) = 2.111848 in

7 0
3 years ago
Lily is cutting a piece of yarn into 3 (three) pieces. The 2nd piece is 3 times as long as the 1st piece, while the 3rd piece is
STatiana [176]

Answer:

The length of the first piece = 41 cm

Step-by-step explanation:

Let the length of the first piece = a

Let the length of the second piece = b

Let the length of the third piece = c

we are given the following:

b = 3a . . . . . (1)     (The 2nd piece is 3 times as long as the 1st piece)

c = 6 + a  . . . . (2)    (the 3rd piece is 6 centimeters longer than the 1st piece)

a + b + c = 211 . . . . . (3)    (  the yarn has a total length of 211 centimeters)

Next, let us eliminate two variables, and this can easily be done by substituting the values of b and c in equations 1 and 2 into equation 3. this is done as follows:

a + b + c = 211

a + (3a) + (6 + a) = 211       ( remember that   b = 3a; c = 6 + a)

a + 3a + 6 + a = 211

5a + 6 = 211

5a = 211 - 6 = 205

5a = 205

∴ a = 205 ÷ 5 = 41 cm

a = 41 cm

Therefore the length of the first piece (a) = 41 cm

now  finding b and c

substituting a into equation 1 and 2

b = 3a

b = 3 × 41 = 123

∴ b = 123 cm

c = 6 + a

c = 6 + 41 = 47

∴ c = 47 cm

6 0
3 years ago
FInd the measure of RST.
Firlakuza [10]
The answer is probably 30 or 60
3 0
3 years ago
The temperature dropped 5 °F every hour for 5 hours. What was the total number of degrees the temperature changed in the 5 hours
solong [7]

Answer:

25

Step-by-step explanation:

you just multiple 5 times 5

4 0
3 years ago
Read 2 more answers
Please help asap.<br> have a nice day
frozen [14]
I believe it would be A
5 0
3 years ago
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