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Nataliya [291]
3 years ago
11

Can you please help you have to type in a number her is the screenshot

Mathematics
1 answer:
lyudmila [28]3 years ago
4 0

Answer:

Step-by-step explanation:

Rate = (20½ pounds)/(4 hours) = (5⅛ pounds)/hour

9 hours × (5⅛ pounds)/hour = 46⅛ pounds

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The second of two numbers is 8 less than twice the first. their sum is 19. Find the two numbers
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Help easy math question!!!
aleksandrvk [35]

Answer:

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Step-by-step explanation:

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3 years ago
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On a unit circle, the vertical distance from the x-axis to a point on the perimeter of the circle is twice the horizontal distan
swat32

Check the picture below.

since the vertical distance, namely the y-coordinate, is twice as much as the horizontal, then if the horizontal is "x", the vertical one must be 2x.

let's find the hypotenuse first.

\bf \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=\stackrel{adjacent}{x}\\ b=\stackrel{opposite}{2x}\\ \end{cases} \\\\\\ c=\sqrt{x^2+(2x)^2}\implies c=\sqrt{x^2+4x^2}\implies c=\sqrt{5x^2}\implies c=x\sqrt{5} \\\\[-0.35em] ~\dotfill

\bf sin(\theta )=\cfrac{\stackrel{opposite}{2~~\begin{matrix} x \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }}{\stackrel{hypotenuse}{~~\begin{matrix} x \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ \sqrt{5}}}\implies \stackrel{\textit{and rationalizing the denominator}~\hfill }{\cfrac{2}{\sqrt{5}}\cdot \cfrac{\sqrt{5}}{\sqrt{5}}\implies \cfrac{2\sqrt{5}}{(\sqrt{5})^2}\implies \cfrac{2\sqrt{5}}{5}}

5 0
3 years ago
Which of the following expressions is equal to 1 divided by 16
Ber [7]
The answer is 1/2 4
3 0
2 years ago
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