3 years ago

Without expanding determinants,Prove that

Mathematics

1 answer:

sasho [114]3 years ago

6 0

Answer:

To prove???

Step-by-step explanation:

i have proved this

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1)2 out of 7 students are boys. about what percent of students are boys? please help me with the question it is due tomorrow!!!!

notka56 [123]

The long answer is <span>28.571428%, but I would round it upwards to make it seem more realistic.</span>

8 0

2 years ago

Patty is building a rope ladder for a tree house. She needs two 5 foot pieces of rope for the sides of the ladder. She needs 7 p

BigorU [14]

Answer:

20 1/2 feet

Step-by-step explanation:

The total length is found by adding the lengths of the individual pieces. It can be easier if you use multiplication in place of repeated addition. You want ...

(2 × 5 feet) + (7 × 18 inches)

At some point in the process, you need to convert inches to feet. This is done by remembering that 12 inches = 1 foot. Dividing inches by 12 gives feet.

The above expression evaluates to

10 feet + 126 inches = 10 feet + (126/12) feet = 10 feet + 10.5 feet

= 20.5 feet

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