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valina [46]
4 years ago
5

It takes 6 cubes to build a staircase with 3 step. How many cubes will be needed for 11 steps?

Mathematics
1 answer:
kolezko [41]4 years ago
7 0
The answer is 22 cuz 6/3 is 2 and 11 times 2 is 22 
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E^ln 1 =
tigry1 [53]
a^{log_a(b)}=b
ln=log_e
so
e^{ln(x)}=e^{log_e(x)}=x for all x

first one
e^{ln(1)}=1
C is answer

2nd one
e^{ln(5x)}=5x
D is answer
5 0
4 years ago
Read 2 more answers
I need help ASAP pls help !!
Mkey [24]

Answer: C plz brainliest

Step-by-step explanation:

Cuz if x is replaced for 646

32.7632(646) + 593.2188 = 21758.246

Since it said approximately it is 21.758

6 0
3 years ago
Twenty seven pears are packed in bags of three. Five bags of pears are sold. How many pears are left
aliya0001 [1]

Answer:

Pears\ Left = 12

Step-by-step explanation:

Given

Pears = 27

Bags\ Sold = 5

Required

Determine the number of bags sold

First, we need to determine the number of bags for 27 pears;

Since they are packed in 3s

Bags = 27/3

Bags = 9

Hence:

9 bags were used for 27 pears;

After 5 bags were sold, we have:

Bags\ Left = 9 - 5

Bags\ Left = 4

Recall that the pears are packed in 3s

So:

Pears\ Left = 4 * 3

Pears\ Left = 12

4 0
4 years ago
Please help and explain how to do it
nadezda [96]
So F(m) because F dollars for every mph over the speed limit
so 40 dollar speeding fine so +40 
10 dollars for every mile over and m=miles over so put them all toghether and get
F(m)=10m+40


1.
so if you were going 78 mph
to find the mph over you would do 78-70=8mph over so put in 8 for m and get
F(8)=10(8)+40=80+40=$120 fine for going at 78 mph
7 0
3 years ago
HELP PLEASE giving out brainilest
Nat2105 [25]

9514 1404 393

Answer:

  160 cm³

Step-by-step explanation:

The ratio of the linear dimensions is the square root of the ratio of areas:

  scale factor B/A= √(64/144) = 8/12 = 2/3

The ratio of volumes is the cube of the scale factor:

  (volume B)/(volume A) = (2/3)³ = 8/27

Then the volume of pyramid B is ...

  volume B = (volume A) × (volume B)/(volume A)

  = (540 cm³) × (8/27) = 160 cm³ . . . . volume of pyramid B

_____

Equivalently, the ratio of volumes is the 3/2 power of the ratio of areas.

 Vb = Va(64/144)^(3/2) = (540 cm³)(4/9)^(3/2) = (540)(8/27) cm³ = 160 cm³

5 0
3 years ago
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