2 years ago

Simplify (please help)

Mathematics

1 answer:

valkas [14]2 years ago

4 0

Answer:

$\frac{8x^{3}y^{6} }{z^{3} }$

Step-by-step explanation:

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) 20% of computer chips from a certain manufacturer are defective. if 100 computer chips are purchased, what is the approximate

Furkat [3]

100%. 20/100 is equivalent to 20%, and because there is a 20% chance of a chip being a defect, it is 100%

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3 years ago

the total distance of a car moves varies directly with the time in hours.the car moves a total distance of 812 miles in 14 hours

ddd [48]

Answer:

J (22hrs)

Step-by-step explanation:

812 divided by 14= 58

1,276 divided by 58= 22 hrs

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2 years ago

Approximate the area under the

taurus [48]

Split up the interval [0, 3] into 3 equally spaced subintervals of length $\Delta x = \frac{3-0}3 = 1$ . So we have the partition

[0, 1] U [1, 2] U [2, 3]

The left endpoint of the $i$ -th subinterval is

$\ell_i = i - 1$

where $i\in\{1,2,3\}$ .

Then the area is given by the definite integral and approximated by the left-hand Riemann sum

$\displaystyle \int_0^3 f(x) \, dx \approx \sum_{i=1}^3 f(\ell_i) \Delta x \\\\ ~~~~~~~~~~ = \sum_{i=1}^3 (i-1)^3 \\\\ ~~~~~~~~~~ = \sum_{i=0}^2 i^3 \\\\ ~~~~~~~~~~ = 0^3 + 1^3 + 2^3 = \boxed{9}$

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2 years ago

Can someone help me out with number 2?

Norma-Jean [14]

$\sin255^o=\sin(300^o-45^o)=\sin300^o\cos45^o-\cos300^o\sin45^o= \\\\=- \frac{ \sqrt{3} }{2}\cdot \frac{ \sqrt{2} }{2}- \frac{1}{2} \cdot \frac{ \sqrt{2} }{2}=- \frac{ \sqrt{6} }{4} - \frac{ \sqrt{2} }{4}= -\frac{ \sqrt{6}+\sqrt{2} }{4}$

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3 years ago

10. Find the parallel slope: (-2.9) and (1.-3).

devlian [24]

-12 or -12/1 that’s the answer

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3 years ago