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3 years ago

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Mathematics

2 answers:

Natali [406]3 years ago

5 0

Answer:

Step-by-step explanation:

victus00 [196]3 years ago

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Answer:

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Which of the following is the same as 3/5÷4/7 3/5÷7/4 4/7÷3/5 3/5×4/7 3/5×7/4

Gala2k [10]

Answer:

all have numbers 3 5 4 7

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3 years ago

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How many unique ways are there to arrange the letters in the word reindeer

Shkiper50 [21]

There are 24 unique ways are there to arrange the letters in the word reindeer.

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3 years ago

Charlie measured his room and found that it was 10 1/2 feet in length and 7 1/4 feet wide. His brother's room has the same width

ozzi

Answer:

Length of Charlie's brother's room = 8 2/5 feet

Area of Charlie's brother's room = 60 9/10 feet²

Step-by-step explanation:

Width Charlie's room = 7 1/4 = (7 x 4 +1)/4 = 29/4 feet

Length Charlie's room = 10 1/2 = (10 x 2 +1)/2 = 21/2 feet

Length brother's room = 4/5 x 21/2 = (4 x 21)/(5 x 2) = 84/10 = 8 2/5 feet

Area = Length x Width = (42/5 x 29/4) feet² = 1218/20 feet² = 60 9/10 feet²

$\textit{\textbf{Spymore}}$

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3 years ago

Simplify the expression fraction with numerator of the square root of negative four and denominator of the quantity three plus i

Alex787 [66]

Answer:

$\frac{-4+2i}{5}$

Step-by-step explanation:

We are given the expression, $\frac{\sqrt{-4}}{(3+i)-(2+3i)}$

On simplifying, we have,

$\frac{2i}{3+i-2-3i}$

i.e. $\frac{2i}{1-2i}$

Now, we will rationalize the expression,

i.e. $\frac{2i}{1-2i}\times \frac{1+2i}{1+2i}$

i.e. $\frac{(2i)\times (1+2i)}{(1-2i)\times (1+2i)}$

i.e. $\frac{2i+4i^{2}}{1-4i^{2}}$

Since, $i^{2}=-1$ , we get,

i.e. $\frac{2i-4}{1+4}$

i.e. $\frac{-4+2i}{5}$

So, the simplified expression is $\frac{-4+2i}{5}$ .

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3 years ago

Topic Solving Percent Problems

svlad2 [7]

Answer: Percent=60 base=120 amount= 291

Step-by-step explanation:

If amount=unknown. choose that

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3 years ago