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Arte-miy333 [17]
3 years ago
15

Unit of Measurement, a punk/disco band, was signed up to play a benefit

Mathematics
1 answer:
vova2212 [387]3 years ago
7 0
D because they played for two days so that makes you multiply the number of seconds by the same number
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Help with matrices please? Any wrong/not applicable answers will be reported and BLOCKED
marin [14]

m x H = \left[\begin{array}{ccc}-25&37.5&-12.5\\\9\end{array}\right]

Step-by-step explanation:

Step 1; Multiply 5 with this matrix  \left[\begin{array}{ccc}-1&2\\4&8\\\end{array}\right] and we get a matrix \left[\begin{array}{ccc}-5&10\\20&40\\\end{array}\right]

Multiply the fraction  \frac{2}{5} with the matrix  \left[\begin{array}{ccc}-1&2\\4&8\\\end{array}\right] and we get \left[\begin{array}{ccc}-\frac{2m}{5} &\frac{4m}{5} \\\frac{8m}{5} &\frac{16m}{5} \\\end{array}\right]

Step2; Now equate corresponding values of the matrices with each other.

-5 = \frac{-2m}{5} and so on. By equating we get the value of m as \frac{25}{2}

Step 3; Add the matrices to get the value of matrix m.

Adding the three matrices on the RHS we get  \left[\begin{array}{ccc}2&9&-9\\\end{array}\right].

Step 4; Adding the matrices on the LHS we get the resulting matrix as H +

\left[\begin{array}{ccc}4&6&-8\\\9\end{array}\right]. Equating the matrices from step 3 and 4 we get the value of H as \left[\begin{array}{ccc}-2&3&-1\\\9\end{array}\right]

Step 5; Now to find the value of m x H we need to multiply the value of \frac{25}{2} with the matrix \left[\begin{array}{ccc}-2&3&-1\\\9\end{array}\right]

Step 6; Multiplying we get the matrix m x H = [ -25  \frac{75}{2}  \frac{-25}{2} ]

8 0
2 years ago
How to factor this expression: x^2-9?
Lena [83]

Answer:

(x+3)(x-3)

Step-by-step explanation:

rewrite "9" as 3^2

so it is x^2-3^2

You use the difference of squares: a^2-b^2=(a+b)(a-b)

apply it: (x+3)(x-3)

7 0
2 years ago
1/2 (y-3)= 1/2 + (x-3)<br><br> Rapidoo
netineya [11]
Because there are two variables in this equation, you cannot solve for answers. However, I'll assume that you want to get this into slope intercept form as that is the most common way to graph these. The answer in that case is y = 2x - 2

<span>1/2 (y-3)= 1/2 + (x-3) ---> Start by multiplying both sides by 2
(y - 3) = 1 + 2x - 6 ---> now add 3 to each side
y = 3 + 1 + 2x - 6 ----> now simplify like terms. 
y = 2x - 2 </span>
7 0
3 years ago
Write any five applications of cyliner​
satela [25.4K]

1. pipes

2.cold drink cans

3.water tanks

4.candle

4 0
3 years ago
Read 2 more answers
The area of circular garden is 706.5 feet2. What is the circumference of the garden? (Use 3.14 for pi .)
Lera25 [3.4K]

Answer:

30\pi or 94.2 feet

Step-by-step explanation:

Use the area formula to find the radius:

A = \pir²

706.5 = 3.14r²

225 = r²

15 = r

Then, find the circumference using the formula:

C = 2\pir

C = 2\pi(15)

C = 30\pi

So, the circumference of the garden is 30\pi or approximately 94.2 feet

8 0
3 years ago
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