3 years ago

Maggie leaves her home and travels 4 miles

Mathematics

1 answer:

DiKsa [7]3 years ago

4 0

Answer:11 miles

Step-by-step explanation:

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Simplify 1/4-7i to get a complex number in standard a + bi form.

Romashka [77]

Answer:

$\frac{1}{4-7i}=\frac{4}{65}+\frac{7}{65}i$

Step-by-step explanation:

we are given

$\frac{1}{4-7i}$

Firstly, we will get rid of imaginary term from denominator

so, we will multiply conjugate to both top and bottom term

$\frac{1}{4-7i}=\frac{1\times (4+7i)}{(4-7i)\times (4+7i)}$

$\frac{1}{4-7i}=\frac{4+7i}{4^2-(7i)^2}$

$\frac{1}{4-7i}=\frac{4+7i}{16+49}$

$\frac{1}{4-7i}=\frac{4+7i}{65}$

we can also write as

so, we get

$\frac{1}{4-7i}=\frac{4}{65}+\frac{7}{65}i$

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What is the length of the missing side of the triangle?

cestrela7 [59]

Answer:

26.5

Step-by-step explanation:

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What is the value of X?<br> 14<br> //<br> 3<br> 21

julia-pushkina [17]

Answer:

Step-by-step explanation:

3/21=x/14

X=2

Answer is 2

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3 years ago

Find the percent of change from 67 inches to 89 inches. Round to the nearest tenth of a percent if necessary.

Paraphin [41]

Thats 22 inches apart and 22 is 33% of 67

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Layala and Zahra have 2700 marbles in the ratio of 2:7. How many marbles Zahra must have gave away so that they both would have

Zolol [24]

Answer:

1500

Step-by-step explanation:

Given that :

Total number of marbles held by Layala and Zahra = 2700

Ratio = 2 : 7

Layala's share of marbles : (2 / (2+7)) * 2700

= 2/9 * 2700

= 600

Zahra's share of marble : (7 / (2+ 7)) * 2700

= 7 / 9 * 2700

= 2100

Hence, Zahra must have given away (2100 - x) = 600

2100 - 600

= 1500 marbles, so that both Zahra and Layala have the same number of marbles

5 0

3 years ago