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Pani-rosa [81]
4 years ago
6

Solve for x and y 2x+60=9y+10

Mathematics
1 answer:
gayaneshka [121]4 years ago
4 0

Answer:

x=9y/2-25

y=2x/9+50/9

Step-by-step explanation:

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A can of beans has surface area 337 cm2. It's heights is 11cm. What is the radius of the circular top?
Karolina [17]

Answer:

3.66 cm

Step-by-step explanation:

r = Radius of cylinder

h = Height of the cylinder = 11 cm

A = Total surface area of the cylinder = 337\ \text{cm}^2

Total surface area of a cylinder is given by

A=2\pi r^2+2\pi rh\\\Rightarrow A=2\pi r(r+h)\\\Rightarrow \dfrac{A}{2\pi}=r^2+rh\\\Rightarrow r^2+rh-\dfrac{A}{2\pi}=0\\\Rightarrow r^2+11r-\dfrac{337}{2\pi}=0\\\Rightarrow r^2+11r-53.64=0\\\Rightarrow 100r^2+1100r-5364=0\\\Rightarrow r=\dfrac{-1100\pm \sqrt{1100^2-4\times 100\left(-5364\right)}}{2\times 100}\\\Rightarrow r=3.66,-14.65

So, the radius of the circular top is 3.66 cm.

6 0
3 years ago
Which expression is equivalent to 3 square root of 125
Nookie1986 [14]

Answer:

The √125 can be factored out to 25 and 5 then 25 can be factored out to 5 and 5. Then you pair up the numbers, you have a pair of 5's and a 5 left over. So the pair of 5's goes inside the radical as √5 and on the outside of the radical you have 5×3. So 3√125≈15√5.

Step-by-step explanation:

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3 0
4 years ago
15PTS PLEASE HELP ASAP!<br> (dont write random answers pls)<br> look at the pic attached:
deff fn [24]

Answer:

IS A

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Step-by-step explanation:

7 0
3 years ago
Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?
Vesnalui [34]
Its Letter B -0.5

negative because its slope is negative (from left to right it's going downward)

so there are 2 negavite numbers in the choices, -0.5 and -0.95.

The nearer the value to 1 the less scatter it is. The farther the value to 1 (means nearer to 0) the more scatter it is. Because the plot in the picture is mostly scattered the value should be nearer to 0. It is negative 0.5.
6 0
3 years ago
Read 2 more answers
Can someone help me
Alexandra [31]

Answer:

30?

Step-by-step explanation:

8 0
3 years ago
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