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jeka57 [31]
2 years ago
15

Solve the following:

Mathematics
2 answers:
RideAnS [48]2 years ago
6 0
The answer you are looking for is 1&1/3
Shalnov [3]2 years ago
4 0
To make it easier for yourself, change the mixed number into an improper fraction

2 2/3 = 8/3
1 1/3 = 4/3
then you do 8/3 - 4/3 = 4/3

4/3 can be simplified to 1 1/3
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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
2 years ago
Daniel ran 38 laps on the track. Each lap is 1/4 mile long. How many miles did Daniel run?
Harman [31]

Answer:It's 9.5 Miles I'm Not Sure About My Answer

Step-by-step explanation:

3 0
2 years ago
100 POINTS NO BEGGINERS AND AMBITIOUS, VIRTUOSO AND UP ONLY OR I WILL REPORT U
Solnce55 [7]
Y –<span> y</span>1<span> = m</span>(<span>x </span>–<span> x</span>1<span>)
y - -2 = 3 (x-1)
y + 2 = 3(x-1)

answer: </span>y + 2=3(x−1)
3 0
3 years ago
Read 2 more answers
-3y + 8x = 36<br> 6x + y = -21
tiny-mole [99]

Answer:

x=−27/26

and y=−192/13

Step-by-step explanation:

6x+y=−21;8x−3y=36

Step: Solve6x+y=−21for y:

6x+y=−21

6x+y+−6x=−21+−6x(Add -6x to both sides)

y=−6x−21

Step: Substitute−6x−21foryin8x−3y=36:

8x−3y=36

8x−3(−6x−21)=36

26x+63=36(Simplify both sides of the equation)

26x+63+−63=36+−63(Add -63 to both sides)

26x=−27

26x

26

=

−27

26

(Divide both sides by 26)

7 0
3 years ago
In which quadrant or on which axis do each of the points (-2,4) , (3,-1) ,(-1,0), (1,2) and
exis [7]

Answer:

Step-by-step explanation:

cartesian plane :

quadrant 1 : both x and y are positive

quadrant 2 : x is negative, y is positive

quadrant 3 : both x and y are negative

quadrant 4 : x is positive and y is negative

(-2,4)......we have x is negative and y is positive...so we are in quadrant 2

(3,-1)....we have x is positive and y is negative...in quadrant 4

(-1,0) ...if u have a 0 in ur points, they do not lie in any quadrant because they are located on an axis....this is located on axis x

(1,2)....both are positive....located in quadrant 1

(-3,-5)...both are negative.....quadrant 3

5 0
3 years ago
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