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PSYCHO15rus [73]
4 years ago
14

Devin was helping his grandfather gather corn in the

Mathematics
1 answer:
SVETLANKA909090 [29]4 years ago
7 0

Answer:

$4/hour

Step-by-step explanation:

From 7:30 am to 10:00 am it's 2.5 hours.

10 * 2.5 hours = 25 hours

He worked a total of 25 hours.

$100/(25 hours) = $4/hour

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Find the difference (4 - 7m) - (-n + 2m - 1)
AVprozaik [17]
Im pretty sure that the answer to that is 5-9m+n
6 0
3 years ago
Let f(x) = 13x + 7 and g(x) = x^2 -3, find f( +g)(x)
mafiozo [28]

\mleft(f+g\mright)\mleft(x\mright)=f\mleft(x\mright)+g\mleft(x\mright)(f+g)(x)=(13x+7)+(x^2-3)=x^2+13x+4

8 0
1 year ago
What is the surface area of a cone with a radius of 6 meters and a slant height of 8 meters? Round to the nearest tenth. *
aleksandr82 [10.1K]

Answer: 263.8m2

Step-by-step explanation:

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8 0
3 years ago
An ellipse has a center at the origin, a vertex along the major axis at (10, 0), and a focus at (8, 0). Which equation represent
Alchen [17]
Check the picture below.  So the ellipse looks more or less like so.

since the major axis is over the x-axis, is a horizontal ellipse, notice the "a" component length and the value for "c".

\bf \textit{ellipse, horizontal major axis}
\\\\
\cfrac{(x- h)^2}{ a^2}+\cfrac{(y- k)^2}{ b^2}=1
\qquad 
\begin{cases}
center\ ( h, k)\\
vertices\ ( h\pm a,  k)\\
c=\textit{distance from}\\
\qquad \textit{center to foci}\\
\qquad \sqrt{ a ^2- b ^2}
\end{cases}\\\\
-------------------------------

\bf \begin{cases}
h=0\\
k=0\\
a=10\\
c=8
\end{cases}\implies 8=\sqrt{a^2-b^2}\implies 8^2=a^2-b^2\implies b^2=10^2-8^2
\\\\\\
b=\sqrt{100-64}\implies b=6
\\\\\\
\cfrac{(x-0)^2}{10^2}+\cfrac{(y-0)^2}{6^2}=1\implies \cfrac{x^2}{100}+\cfrac{y^2}{36}=1

3 0
3 years ago
Read 2 more answers
A set of numbers is shown: {0, 1.4, 3.2, 4, 8, 12} Which of the following shows all the numbers from the set that make the inequ
stiv31 [10]
5x + 3 \geq 23
5x \geq 20
x \geq 4
So it can be {4, 8, 12}

If this helps, can you give me the brainliest answer? I need it...

Thank you very much.
7 0
4 years ago
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