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spayn [35]
3 years ago
7

need help and for the chare show your work and for the rest u dont need to show ur work and if u are not sure if u got it right

then plz dont ancer

Mathematics
1 answer:
oee [108]3 years ago
3 0
#25
210 / 0.42 = 500
answer: 500 people were surveyed

#18
22.50 x 1.15 = 25.875
answer: $25.88 (third choice)

#19
550 x 0.07 = $38.50
answer: $38.50 (third choice)

#20
$160 x 0.4 = $64
answer: $64 (third choice)


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What is two times the sum of 6 and some number is 30. What would the number be.?
Dvinal [7]

Answer:

The variable "a number" stands for 9.

Step-by-step explanation:

Rewrite the problem as 2 * (6 + x) = 30

Divide 30 into 2. 30/2 = 15

That means that the variable that is added to 6 must make the number 15.

15 - 6 = 9

The variable x is 9 so the equation would be:

2 * (6 + 9) = 30

8 0
4 years ago
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<img src="https://tex.z-dn.net/?f=%20%5Cint%20%5Cfrac%7Bdx%7D%7Bxln%5E%7Bp%7Dx%20%7D" id="TexFormula1" title=" \int \frac{dx}{xl
Eva8 [605]
Substitute u=\ln x, so that \mathrm du=\dfrac{\mathrm dx}x. The integral is then equivalent to

\displaystyle\int\frac{\mathrm dx}{x\ln^px}=\int\frac{\mathrm du}{u^p}=\begin{cases}\dfrac{u^{p+1}}{p+1}+C&\text{for }p\neq1\\\\\ln|u|+C&\text{for }p=1\end{cases}

Then transforming back to x gives

\displaystyle\int\frac{\mathrm dx}{x\ln^px}=\begin{cases}\dfrac{\ln^{p+1}x}{p+1}+C&\text{for }p\neq1\\\\\ln|\ln x|+C&\text{for }p=1\end{cases}
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4 years ago
Write the equation in slope intercept form ?
QveST [7]

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Step-by-step explanation:

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3 years ago
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jonny [76]
.08 is the product rounded to the nearest hundredth
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Determine which is the graph of the given function.
Grace [21]

Answer:

See attached picture and description below.

Step-by-step explanation:

Graph each equation as you would graph any linear function. Plot the y-intercept for the first equation at (0,5) then move down 0.5 units and to the right 1 unit. This is the right boundary and should be plotted with an open circle. (red graph.

The second equation should be graphed starting at the y-intercept (0,-2.5) then proceeding down 0.5 units and over 1 unit to the right. (blue graph)

See graph below for complete graph.

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