Answer:
Density = 10,490 g/m³
Step-by-step explanation:
Density = mass ÷ volume
here mass = 73,430 g
         volume = 7 m³
density = 73,430 ÷ 7
              = 10490 g/m³
Density = 10,490 g/m³
 
        
             
        
        
        
Answer:
9 miles
Step-by-step explanation:
 
        
             
        
        
        
Answer:
B,E and F
Step-by-step explanation:
- (B)A cross section parallel to the base is a square measuring 4 cm by 4 cm.
Since a cube has <u>equal base length</u>, any cross section parallel to the base will also have an equal base length.
- (E)A cross section perpendicular to the base through the midpoints of opposite sides is a square measuring 4 cm by 4 cm.
Since a cube has <u>equal side lengths</u>, any cross section parallel to the side will also have an equal base length.
- (F)A cross section that passes through the entire bottom front edge and the entire top back edge is a rectangle measuring 4 cm by greater than 4 cm.
Using Pythagoras Theorem

There the cross section will be a rectangle which measures 
 
        
                    
             
        
        
        
Answer:
u = 7
Step-by-step explanation:
In a parallelogram, GI = GK so:
u + 28 = 5u
4u = 28
u = 7
 
        
             
        
        
        
The amount invested in each company is : 
- Amount invested in PP = $2400
- Amount invested in TT = $(10000 - 2400) = $7600
Using the simple interest relation: 
Simple interest = principal × rate × time 
Total amount = 10000
Let : 
principal invested in PP = r
HENCE, amount invested in TT = 10000 - r 
Total interest earned on both investments = $620 
PP investment return + TT investment return = 620
(r × 10% × 1) + (10000 - r × 5% × 1) = 620
0.1r + 500 - 0.05r = 620
0.05r = 620 - 500
0.05r = 120
r = 120 / 0.05 
r = 2400
Hence, 
Amount invested in PP = $2400
Amount invested in TT = $(10000 - 2400) = $7600
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