3 years ago

Can someone help me out please! Im really bad at math.

Mathematics

2 answers:

kirza4 [7]3 years ago

8 0

For question 1: 4 apples is 1 pound, 12 apples is 3 pounds, 16 apples is 4 pounds, and 20 apples is 5 pounds.

pishuonlain [190]3 years ago

4 0

Answer:

The answer is....

Step-by-step explanation:

<h3>Pounds X: 1,2,3,4,5</h3><h3>Apples Y: 4, 8, 12, 16, 20</h3><h3>What I noticed is that they are skip counting the x by 1's and tha y's by 4.</h3><h3 />

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Elena, Lin, and Noah all found the area of Triangle Q to be 14 but they reasoned about it differently, as shown in the diagrams

vfiekz [6]

Answer:

yes it is

Step-by-step explanation:

7 0

3 years ago

Find the distance traveled by a particle with position (x, y) as t varies in the given time interval. x = 5 sin2 t, y = 5 cos2 t

rodikova [14]

$\begin{cases}x(t)=5\sin2t\\y(t)=5\cos2t\end{cases}\implies\begin{cases}\frac{\mathrm dx}{\mathrm dt}=10\cos2t\\\frac{\mathrm dy}{\mathrm dt}=-10\sin2t\end{cases}$

The distance traveled by the particle is given by the definite integral

$\displaystyle\int_C\mathrm dS=\int_0^{3\pi}\sqrt{\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2}\,\mathrm dt$

where $C$ is the path of the particle. The distance is then

$\displaystyle\int_0^{3\pi}\sqrt{100\cos^22t+100\sin^22t}\,\mathrm dt=10\int_0^{3\pi}\mathrm dt=30\pi$