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3 years ago

Isabel lives 2 7/9 miles from school. Janet lives 2 5/7 miles from school. Who lives farther away from school? How do you know?

Mathematics

1 answer:

mash [69]3 years ago

4 0

Isabel. Because 7/9 is bigger than 5/7 . 7/9 is equivalent to 0.77 and 5/7 is equivalent to 0.71

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Which relationship describes angles 1 and 2?

Mnenie [13.5K]

Answer:

Step-by-step explanation:

1 and 2 are vertical angles

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3 years ago

(a) Use the definition to find an expression for the area under the curve y = x3 from 0 to 1 as a limit. lim n→∞ n i = 1 Correct

Luba_88 [7]

Splitting up the interval of integration into $n$ subintervals gives the partition

$\left[0,\dfrac1n\right],\left[\dfrac1n,\dfrac2n\right],\ldots,\left[\dfrac{n-1}n,1\right]$

Each subinterval has length $\dfrac{1-0}n=\dfrac1n$ . The right endpoints of each subinterval follow the sequence

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and taking the limit as $n\to\infty$ gives the area exactly. We have

$\displaystyle\lim_{n\to\infty}\frac1n\sum_{i=1}^n\left(\frac in\right)^3=\lim_{n\to\infty}\frac{n^2(n+1)^2}{4n^3}=\boxed{\frac14}$

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3 years ago

What is 88/100 in simplest form?

mart [117]

22/25 is 88/100 in simplest form

5 0

3 years ago

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Which is equal to (2+3i)+(-4+i)? A, -2-4i B, -2-2i C, -2+2i D, -2+4i E, 6+4i

inysia [295]

Answer:

D. -2+4i

Step-by-step explanation:

just combine like terms :)

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3 years ago

Read 2 more answers

Marta hopes to have a test average of at least 90 by the end of the marking period. Her grades on the first four tests have been

Virty [35]

Answer:

Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

Explanation:

Marks received by Marta in four tests = 86, 84, 97 and 89

Let mark received in fifth test be x

We have average of five test is more than or equal to 90

So we have

$\frac{86+84+97+89+x}{5} \geq 90\\ \\ 86+84+97+89+x\geq 450\\ \\ x\geq 94$

So Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

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3 years ago