Please help me with this

Mathematics

1 answer:

viktelen [127]3 years ago

6 0

Answer:

zero product property of multiplication

Step-by-step explanation:

step 2 is valid, because for the main expression in step 1 to be true, only one of the 2 factors need to be 0, as

0 × something is always 0.

therefore, it is sufficient to find the values of x that renders the expression of one factor to 0.

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Evaluate the iterated integral. $$ \int\limits_0^{2\pi}\int\limits_0^y\int\limits_0^x {\color{red}9} \cos(x+y+z)\,dz\,dx\,dy $$

KengaRu [80]

$\displaystyle\int_{y=0}^{y=2\pi}\int_{x=0}^{x=y}\int_{z=0}^{z=x}\cos(x+y+z)\,\mathrm dz\,\mathrm dx\,\mathrm dy=\int_{y=0}^{y=2\pi}\int_{x=0}^{x=y}\sin(x+y+z)\bigg|_{z=0}^{z=x}\,\mathrm dx\,\mathrm dy$
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4 0

3 years ago

Anna charges $8.50 per hour to babysit. Complete the table, and answer the questions below. Write an expression describing her e

GaryK [48]

The equation that show the relationship between Anna earning and time worked is y = 8.5h.

<h3>Linear equation</h3>

Linear equation is in the form:

y = mx + b

where m is the rate of change, b is the y intercept and y, x are variables.

Let y represent Anna earnings for working h hours.

Since she charges $8.50 per hour to babysit. Hence:

y = 8.5h