3 years ago

I neee help with this question ???

Mathematics

1 answer:

olchik [2.2K]3 years ago

5 0

Answer:

Step-by-step explanation:

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(2/3) / (-1/2)<br> How do I divide these 2 fractions?

dsp73

Answer:

Step-by-step explanation:

2/3*(-2/1)

$-\frac{4}3}$

Hope it helps! Please mark Brainliest if it does!

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2 years ago

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The population of Medfield is 7000. Capital City's population is of Medfield's. What is Capital City's population?

snow_tiger [21]

Since the Capital City's population is of Medfield's is 7000 please tell if you forgot something. Good luck

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3 years ago

Write the following sum using summation notation -2/5+3/6-4/7........11/14

horrorfan [7]

Answer:

$\sum_{n=1}^{10}(-1)^n\left ( \frac{n+1}{n+4} \right )$

Step-by-step explanation:

Given: $\frac{-2}{5}+\frac{3}{6}-\frac{4}{7}+...+\frac{11}{14}$

To write: the given expression using summation notation

Solution:

Summation notation helps to write a long sum as a single expression.

In the summation notation, the variable $\sum$ is called the index of summation.

Let $x_1,x_2,x_3,...,x_n$ denote a set of n numbers.

Then in summation notation,

$x_1+x_2+x_3+...+x_n=\sum_{i=1}^{n}x_i$

$\frac{-2}{5}=(-1)^1\left ( \frac{1+1}{1+4} \right )\\\frac{3}{6}=(-1)^2\left ( \frac{2+1}{2+4} \right )\\\frac{-4}{7}=(-1)^3\left ( \frac{3+1}{3+4} \right )\\.\\.\\.\\\frac{11}{14}=(-1)^10\left ( \frac{10+1}{10+4} \right )\\\therefore \frac{-2}{5}+\frac{3}{6}-\frac{4}{7}+...+\frac{11}{14}=\sum_{n=1}^{10}(-1)^n\left ( \frac{n+1}{n+4} \right )$

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2 years ago

A bottle contains 30 ounces of grape juice.

asambeis [7]

Answer:

3.75 cups

Step-by-step explanation:

30/8=3.75

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2 years ago

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Simplify.... please help

atroni [7]

You answer should be B because you would flip the fraction so the powers would become positive and then take 3 from 5 to be left with 8^2 on the bottom with one on the top.

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3 years ago

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