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Serga [27]
3 years ago
15

Can someone explain these questions? Thank you so much.

Mathematics
1 answer:
stealth61 [152]3 years ago
6 0
3) There are 12 inches in a foot, so 144/12 equals 12 feet- the distance above the floor. 12 goes into 40 about 3 times. 3 feet + 12 feet equals about 15 feet.

4) When you want to find the percentage of something, you would take the percentage and move the decimal place two spaces to the left. So 45% becomes .45. Then you would multiply that by the number of houses. .45 times 36 equals 16.2. Rounded to the nearest whole number, 16 houses display holiday lighting.
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Please Help!! I will give brainliest<br><br> The question is attached below
Rina8888 [55]

Answer:

Step-by-step explanation:

P(x) = \frac{2}{3x-1}

Q(x) = \frac{6}{-3x+2}

P(x) × Q(x) = \frac{2}{3x-1}\times \frac{6}{-3x+2}

                 = \frac{2\times 6}{(3x-1)(-3x+2)}

                 = \frac{12}{(3x-1)(-3x+2)}

P(x) ÷ Q(x) = \frac{2}{(3x-1)} ÷ \frac{6}{(-3x+2)}

                 = \frac{2}{(3x-1)}\times \frac{(-3x+2)}{6}

                 = \frac{(-3x+2)}{3(3x-1)}

5 0
2 years ago
The length of a diagonal of a square is 12cm.find its perimeter​
levacccp [35]

Answer:

12cm^2

Step-by-step explanation:

1/2 x diagonal x diagonal

4 0
3 years ago
Read 2 more answers
With bases V1, V2 , V3 andw1, w2 , W3, suppose T(v1) = w2 and T(v2) = T(v3) = w1 + w3 . T is a linear transformation. Find the m
Roman55 [17]

Answer:

See picture and explanation below.

Step-by-step explanation:

With this information, the matrix A that you can find is the transformation matrix of T. The matrix A is useful because T(x)=Av for all v in the domain of T.

A is defined as T=([T(v_1)] [T(v_2] [T(v_3)])\text{ where }[T(v_i)] denotes the vector of coordinates of T(v_i) respect to the basis (we can apply this definition because forms a basis for the domain of T).

The vector of coordinates can be computed in the following way: if T(v_i)=a_1w_1+a_2w_2+a_3w_3 then [T(v_i)]=(a_1,a_2,a_3)^t.

Note that we have all the required information: T(v_1)=0w_1+1\cdot w_2+0w_3 then [T(v_1)]=(0,1,0)^t

T(v_2)=T(v_3)=1\cdot w_1+0w_2+0w_3 hence [T(v_2)]=[T(v_3)]=(1,0,0)^t

The matrix A is on the picture attached, with the multiplication A(1,1,1).

Finally, to obtain the output required at the end, use the properties of a linear transformation and the outputs given:

T(v_1+v_2+v_3)=T(v_1)+T(v_2)+T(v_3)=w_2+w_1+w_1=w_2+2w_1  

In this last case, we can either use the linearity of T or multiply by A.

4 0
3 years ago
A librarian has 170 books to pack into boxes. On Monday she packed 48 books and on Tuesday she packed 56 books. How many more bo
Marianna [84]
48+56=104; 170-104= 66. The librarian needs to pack 66 more books.
4 0
3 years ago
Which numbers represents a repeating decimal -2/5, -7, 3/9, 11/12
Olegator [25]
-2/5=-.4
-7=-7

These two are repeating decimals.
3/9=.3333334

11/12=.9166667
6 0
3 years ago
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