3 years ago

How do I find 3/4 as a fraction

Mathematics

2 answers:

Svetlanka [38]3 years ago

7 0

0.75....
.....
....
....

antiseptic1488 [7]3 years ago

5 0

Divide 3 by for to get 0.75 but that is a fraction

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I need help with three and four

mart [117]

Answer:

3: $a^{2}+2ab+b^{2}$

4: $8x^{3} -12x^{2}+6x-1$

Step-by-step explanation:

Question 3 can be re-written as:

$(a+b)(a+b)$

which equals:

$a^{2}+2ab+b^{2}$

Question 4 can be re-written as:

$(2x-1)(2x-1)(2x-1)$

Doing the first 2 brackets gives us:

$(4x^{2} -4x+1)(2x-1)$

Expanding these two:

$8x^{3} -4x^{2} -8x^{2} +4x+2x-1$

Simplifying it:

$8x^{3} -12x^{2}+6x-1$

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2 years ago

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An organic farm has been growing an heirloom variety of summer squash. A sample of the weights of 40 summer squash revealed that

natta225 [31]

Answer:

b. 0.0228

Step-by-step explanation:

We are given that

n=40

Mean, $\mu=402.7 g$

Standard deviation, $\sigma=8.8$ g

We have to find the probability hat the mean weight for a sample of 40 summer squash exceeds 405.5 grams.

$P(x>405.5)=P(\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}>\frac{405.5-402.7}{\frac{8.8}{\sqrt{40}}})$

$P(x>405.5)=P(Z>\frac{2.8}{\frac{8.8}{\sqrt{40}}})$

$P(x>405.5)=P(Z>2.01)$

$P(x>405.5)=1-P(Z\leq 2.01)$

$P(x>405.5)=1-0.977784$

$P(x>405.5)=0.022216$

Hence, option b is correct.

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2 years ago

The average blink last one-tenth of a second. If you blink 14,000 times per day, for how many seconds are your eyes closed while

Katen [24]

Answer:

14?

Step-by-step explanation:

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2 years ago

Which system of equations can be used to find the roots of the equation 12x3-5x=2x2+x+6

Marizza181 [45]

Same=same figure out what the x is both x are the same number on both side is the same answer hope that helps

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3 years ago

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Expand the expression.<br> -70k - 3)

ruslelena [56]

Answer:

-70003

Step-by-step explanation:

-70000 - 3 = - 70003

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2 years ago