All categories

2 years ago

Solve the following system of equations graphically.

Mathematics

1 answer:

likoan [24]2 years ago

3 0

Answer:

Step-by-step explanation:

TOOK THE TEST GOT IT RIGHT

You might be interested in

Andrea paid $9.99 to join an online music service. If she purchases 12 songs each month at a cost of $0.80 per song, what will b

Taya2010 [7]

Answer:

67.59

Step-by-step explanation:

12x0.80=9.60, 9.60x6=57.6, 57.6+9.99=67.59

3 0

3 years ago

Read 2 more answers

the pitch, or frequency, of a vibrating string varies directly with the square root of the tension. if a string vibrates at a fr

Naily [24]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\begin{array}{llll}
\stackrel{frequency}{f}\textit{ of a vibrating string varies directly}\\
\qquad \qquad \textit{with the square root of the tension }\stackrel{tension}{t}
\end{array}$

$\bf f=k\sqrt{t}\quad \textit{we also know that }
\begin{cases}
f=300\\
t=8
\end{cases}\implies 300=k\sqrt{8}
\\\\\\
\cfrac{300}{\sqrt{8}}=k\implies \cfrac{300}{\sqrt{2^2\cdot 2}}=k\implies \cfrac{300}{2\sqrt{2}}=k\implies \cfrac{150}{\sqrt{2}}=k
\\\\\\
\textit{and we can \underline{rationalize} it to }\cfrac{150\sqrt{2}}{2}\implies 75\sqrt{2}=k$

$\bf thus\qquad f=\stackrel{k}{75\sqrt{2}}\sqrt{t}\implies \boxed{f=75\sqrt{2t}}\\\\
-------------------------------\\\\
\textit{now, when t = 72, what is \underline{f}?}\qquad f=75\sqrt{2(72)}$

5 0

3 years ago

Read 2 more answers

What is the value of the expression 9 + (fraction 1 over 2)4 ⋅ 48?

lyudmila [28]

Answer -> (12) I'm very late haha but hopes this helps!

3 0

2 years ago

Wes lives in Colorado, which has a state income tax

VashaNatasha [74]

The answer is $41.44.

You take $895× 4.63%= $41.4385.

7 0

3 years ago

Probability scenarios?

velikii [3]

Here are some probability scenarios.

- Flipping a coin and seeing if it is heads or tails.

- Thinking to yourself: "Is it going to rain or hail?"

- Spinning a spinner and seeing what color it lands on.

- Probability in winning the lottery.

- Having 5 pairs of black shoes and one pair of yellow shoes.

The probability of picking the yellow shoe is 1/5.

There are lots of more examples out there!

<em>Hope helps!-Aparri </em>

4 0

2 years ago