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vlada-n [284]
3 years ago
14

When I run up a staircase, my stride can carry me up 1, 2, or 3 steps at a time. In how many ways can I run up a 9-step staircas

e (given that my last stride lands me on the 9th step)?
Mathematics
1 answer:
Romashka [77]3 years ago
6 0
1+1+1+1+1+1+1+1+1
3+3+3
2+1+2+1+2+1
2+1+3+1+2
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Write each sentence as an equation <br><br> A number f multiplied by -12.3 is -73.8
aleksklad [387]
-12.3f= -73.8

F multiplied by -12.3, you just put both thing down together and the equal sign and -73.8 the multiplication sign isn’t really necessary.
3 0
3 years ago
Follow the process of completing the square to solve 2x2 + 8x - 12 = 0. After adding B2 to both sides of the equation in step 4,
Sladkaya [172]

Answer:


Step-by-step explanation:

I dont quite understand the problem but this is one way to solve it using completing the square:-

2x^2 + 8x - 12 = 0

2(x^2 + 4x) - 12 =  0

2((x + 2)^2 - 4)  = 12

2(x + 2)^2 - 8 + 8 = 12 + 8

2(x + 2)^2 = 20

6 0
3 years ago
An ice cream shop offers the toppings below. How many 4-topping ice cream sundaes can you make?
marishachu [46]
Combinations of 7 taken 4 at a time. 
C (7,4)  = 7!  /[  4!(3!)]
7 x 6 x 5 = 210 
210 divided by 3 = 70 
70 divided by 2 = 35
8 0
3 years ago
I really don't understand this honestly. Please help lol
klasskru [66]

Answer:

300

Step-by-step explanation:

I t is good

6 0
2 years ago
_
earnstyle [38]

Answer:

A, B, C

Step-by-step explanation:

whole number: the set of counting numbers, 1, 2, 3, ..., and includes the number 0.

integer: all whole numbers, zero, and all the negatives of the whole numbers: ..., -3, -2, -1, 0, 1, 2, 3, ...

rational: any number that can be written as a fraction of integers

irrational number: a number that cannot be written as a fraction of integers

1.00 is the same as 1

It is:

A whole number

B integer

C rational

6 0
3 years ago
Read 2 more answers
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