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zubka84 [21]
3 years ago
8

12. Andrew bought a camera for

Mathematics
2 answers:
omeli [17]3 years ago
7 0

Answer:

A. 42.71

Step-by-step explanation:

268.26 - 12.00 = 256.26

256.26/6=42.71

Anarel [89]3 years ago
5 0
A that the right answer
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A cube-shaped hole is cut in a rectangular prism as shown below.
IgorC [24]
Surface area of the prism is 2xy+2xz+2yz 
I think, we can cut hole on the face of the prisma 40x30, and size of the whole will be 5X5X5
hole increases surface area. If side of the cube is "a", then a^2 is the area of the one face of the cube.  
when we are doing the hole, we remove 2 faces and add 4 more faces, so 
 2xy+2xz+2yz-2a^2+4a^2=  2xy+2xz+2yz+2a^2
So, 2*5*40+2*5*30+2*40*30+2*5^2=3150 cm^2
 i hope it helps, it is what i can come up with now



6 0
4 years ago
Read 2 more answers
In DEF, FE=13 and m(angle)F=34. Find DF to the nearest tenth
kiruha [24]
A.15.7
 is the answer because fe is 13

7 0
4 years ago
Read 2 more answers
A population of bacteria triples every week in a laboratory. the number of bacteria is modeled by the expression 900.3
kipiarov [429]
Let x represent the number of weeks a population of the bacteria increases. Then, we have the number of bacteria is molded by the expression of 900*3^x. By, the given expression and when we assigned a value of x=2. Then we have 900*3² .
6 0
4 years ago
Which set of statements shows the correct steps to find 45% of 75
madreJ [45]

Answer:

60%

Step-by-step explanation:

How much is 45 out of 75 written as a percentage? Convert fraction (ratio) 45 / 75 Answer: 60%

(happy to help)

8 0
4 years ago
A train leaves at 14.54 and arrives at its destination at 15.47. If the train travelled 66 km, what was it's average speed in km
JulijaS [17]

Answer: average speed of the train = 4,483.0 km/h

Step-by-step explanation:

Speed = Distance / Time

Distance = 66 km

Time = 15.47  cancelling 15, we have 60 sec added to 47 sec

         <u> - 14.54</u>

=         14.   107    60 + 47

         <u> - 14.  54</u>

<u>                     53secs</u>

53secs to hours becomes =

60 secs = 1 min

60 min= i hour

therefore 53seconds =53/3600=0.0147222hours

Speed= 66/ 0.0147222= 4,483.025

Rounding to 1 dp becomes= 4,483.0 km/h

3 0
3 years ago
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