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3 years ago

1. What is the circumference of the circle below? 11 cm

Mathematics

1 answer:

Ket [755]3 years ago

3 0

11^2 x pi that is the formula now find the answer

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A dumpster in the shape of a rectangular prism has a volume of 240 cubic feet. The length of the dumpster is 4 feet less than tw

igor_vitrenko [27]

Answer:

Step-by-step explanation:

v=240

l= 2(w)-4

h=(w-1)

v= l*w*h

240=(2w-4)(w-1)w

we then foil

(2w^2 - 6w + 4) w

lastly multiply the w in

ANSWER: 2w^3 - 6w^2 + 4w = 240

3 0

4 years ago

−14x>−3<br><br> solve for x<br> answer must be simplified

harkovskaia [24]

For this case we must find the value of a variable "x" of the following inequality:

$-14x> -3$

DIviding between 14 to both of the inequality we have:

$\frac {-14} {14} x> \frac {-3} {14}\\-x> - \frac {3} {14}$

We multiply by -1 on both sides, taking into account that the sense of inequality changes:

$x$

ANswer:

$x$

8 0

3 years ago

Read 2 more answers

Suppose C is a 3 x 3 matrix such that det (C) = 4. Show that det (C+C) is equal to 32

Ber [7]

Step-by-step explanation:

Let's consider C is a matrix given by

$\left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right]$

them determinant of matrix C can be written as

$\begin{vmatrix}a & b & c\\ d & e & f\\ g & h & i \end{vmatrix}\ =\ 4.....(1)$

Now,

$det (C+C)\ =\ \begin{vmatrix}a & b & c\\ d & e & f\\ g & h & i \end{vmatrix}\ +\ \begin{vmatrix}a & b & c\\ d & e & f\\ g & h & i \end{vmatrix}$

$=\ \begin{vmatrix}2a & 2b & 2c\\ 2d & 2e & 2f\\ 2g & 2h & 2i \end{vmatrix}$

$=\ 2\times 2\times 2\times \begin{vmatrix}a & b & c\\ d & e & f\\ g & h & i \end{vmatrix}$

$=\ 8\times 4\ \ \ \ \ \ \ \ from\ eq.(1)$

= 32

Hence, det (C+C) = 32

7 0

4 years ago

What is the surface area of a square pyramid with the height of 3 and base of 4

yuradex [85]

Answer:

A≈16.65

Step-by-step explanation:

h Height 3

AB Base area 4

3 0

3 years ago

Please help me! The question is in the screenshot below.

miss Akunina [59]

Answer:

There are two solutions:

= 0.34 , = 11.66

Both solutions are rounded to the nearest hundredth.

3 0

3 years ago