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Virty [35]
4 years ago
5

If x = -2, calculate the value of: xcubed + xsquared

Mathematics
2 answers:
laiz [17]4 years ago
6 0
-2*-2*-2 = ?
-2*-2 = ?
-8+4= -4 
answer is -4
Elan Coil [88]4 years ago
5 0
X cubed = -8   

-2 x -2 = 4 
4 x -2 = -8

x squared = 4

-2 x -2 = 4 

-8 + 4 = -4 

xcubed +xsquared = -4
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Simplify each of the following ratios.<br>e) 2/3 : 3/2 : 5/8​
Snezhnost [94]

Answer:

32/45

Step-by-step explanation:

2/3 : 3/2 : 5/8

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2/3 ÷ 3/2 ÷ 5/8

Dividing fractions is the same as multiplying them by the reciprocal.

2/3 * 2/3 * 8/5

Now simplify:

32/45

32 and 45 have no common factor, hence the final answer is 32/45

6 0
3 years ago
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3 years ago
Find the surface area of a 7.4 cm long iron rod and 3.1 m radius
Debora [2.8K]

Answer:

144.2 cm

Step-by-step explanation:

Length of the iron rod is 7.4cm

Radius is 3.1m

Therefore the surface area can be calculated as follows

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3 0
3 years ago
if the income of A, B and C is in the ratio of 2:5:11 and the income of B is 291 more than A, then the income of C is?
Colt1911 [192]
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Now we can use ratios again to solve for C:

11 / 2 = C / 194
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3 0
3 years ago
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Alexxandr [17]
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3 years ago
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