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rjkz [21]
3 years ago
11

Multiply. −3y(5 y 3 +11 y 2 −y+8)

Mathematics
1 answer:
damaskus [11]3 years ago
5 0

Answer:

3y.(15y+22y-y+8)=0

3y.(36y+8)=0

108y^2+24y=0

Y=-2/9

Y=0

Step-by-step explanation:

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So that you're coming purpose of each circle and find the radius and diameter below the circle
oksano4ka [1.4K]

Answer:

1.

The radius is given, so the radius is = 10

The radius is doubled to be a diameter, so (10 + 10) = 20 is your diameter

And to solve for circumference, your formula is;

C = 2πr

Where 'r' represents the radius, and 'π'(pi) is 22/7 or 3.14.

Plug in your values:-

C = 2πr

C = 2(3.14) x 10

C = 6.28 x 10

C = 62.8, so your circumference is 62.8.

2.

Your radius is half of your diameter, so,

D/2 = R

D = diameter

R = Radius

49/2 = 24.5 is your radius.

Your diameter is given, so the diameter is 49.

Use the formula we applied for circumference in our other problem;

C = 2πr

C = 2(3.14) x 24.5

C = 6.28 x 24.5

C = 153.86, so 153.86 is your circumference.

3 0
2 years ago
Solve for x.
egoroff_w [7]

∑ Hey, KLPJDP615 ⊃

Answer:

x = 6 or x = -10

Step-by-step explanation:

<u><em>Given:</em></u>

<em>Solve for x.</em>

<em>1 + |2+x|= 9</em>

<em>O x = 4 or x = -8</em>

<em>O x = 7 or X = -11</em>

<em>O x = 5 or x = -9</em>

<em>x = 6 or X = -10 </em>

<u><em>Solve:</em></u>

<em>1 + |2+x|= 9</em>

<em>Subtract 1 from both sides:</em>

<em>1 + |2 +x| -1 = 9-1 </em>

<em>Simplify</em>

<em>|2 + x | = 8</em>

<em>Applying absolute value rule:  If |u| = a, a > 0 then u = a or u = -a</em>

<em>2 + x = -8</em>

<em>2 + x = 8</em>

<u><em>Solving:</em></u>

<em>2 + x = -8</em>

<em>2 - 2 + x = -8 - 2</em>

<em>x = -10</em>

<u><em>Solving:</em></u>

<em>2 + x = 8</em>

<em>2 - 2 + x = 8 - 2</em>

<em>x = 6</em>

<em />

<em>Hence, x = 6 or x = -10</em>

<em />

<u><em>xcookiex12</em></u>

<em>8/26/2022</em>

3 0
2 years ago
Divide 21a3 − 14a by -7.<br><br> What is the quotient?
AleksandrR [38]

Answer:

-3a^3 + 2a.

Step-by-step explanation:

21a3 − 14a /  -7

= 21a^3 / -7  -  14a / -7

= -3a^3 + 2a.

7 0
3 years ago
11. Justin needs to rent a car to go on vacation. EnvoCar charges $65 and $0.10 per mile. FreedomRide charges $80 and $0.05 per
Keith_Richards [23]

envo \: car = 65 + 0.10(m)

freedom \: ride = 80 + 0.05(m)

//

I honestly don't know how to do a)

//

envo \: car = 65 + 0.10(250) = 90.00

freedom \: ride = 80 + 0.05(250) = 92.50

He should rent from Envo Car because it would be cheaper.

5 0
3 years ago
ming is making cookies to make 30 cookies his recipe requires 3 eggs using this recipe what is the total number of eggs he will
alexgriva [62]
Divide the cookies and the eggs.
30 divided by 3 is 10
thats how many cookies you can make with one egg.
now divide 120 by 10
your answer is 12 eggs 
6 0
3 years ago
Read 2 more answers
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