3 years ago

The diameter of a round dinner plate is 10 inches. What's the area of the plate?

Mathematics

1 answer:

vladimir1956 [14]3 years ago

7 0

The area is ten inches

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olasank [31]

Answer:

120-(30+48)= 42

Step-by-step explanation:

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3 years ago

Question 5: 10 pts

victus00 [196]

Answer:

6.7i + 7.4j

Step-by-step explanation:

if the angle starts from the East (direction of positive x-axis)

then the y (j) component is 10*sin(42) = 6.7

and x (i) component is 10*cos(42) = 7.4

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2 years ago

Which group has a slope of 4/5? HELPPPPPPP PLEASEEEE IM BEGGGINGGGGGG

jekas [21]

Answer:

The second one.

Step-by-step explanation:

Slope intercept is rise/run. The y-axis goes up by 4 (rises by 4), and the x-axis goes to the right by 5 (runs by 5).

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3 years ago

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a group of five people can do a piece of work in 6 hours calculate the time a group of 8 people will take to complete the same w

frosja888 [35]

Answer:

3.75 hours

Step-by-step explanation:

Total time needed

5 * 6 = 30 hours

with 8 people

30/8 = 3.75 hours

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3 years ago

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Which matrix equation represents the system of equations?<br><br> {-x+ 2y = 0 <br> y= -2

Snowcat [4.5K]

We are given a system of equations,

$\begin{cases}-x+2y=0\\y=-2\\ \end{cases}$

This will translate into a 2x2 matrix of coefficients (because 2 equations and 2 unknowns),

$\begin{bmatrix}-1&2\\0&1\\ \end{bmatrix}$

The matrix will then be applied to the vector (lower dimensions on top),

$\begin{bmatrix}x\\y\\ \end{bmatrix}$

And the result vector will be whats on the other side of equals sign,

$\begin{bmatrix}0\\-2\\ \end{bmatrix}$

So to put everything together,

$\begin{bmatrix}-1&2\\0&1\\ \end{bmatrix}\begin{bmatrix}x\\y\\ \end{bmatrix}=\begin{bmatrix}0\\-2\\ \end{bmatrix}$

Hope this helps :)

6 0

3 years ago