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erica [24]
3 years ago
12

Hi! can someone help!? asap!!

Mathematics
1 answer:
Marina86 [1]3 years ago
8 0
It’s b, Bc it is :) it really is
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WHATS 39 X 39 SOLVE THE PROBLEM
OleMash [197]

Answer:

Step-by-step explanation:

= 1,521

7 0
2 years ago
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How many cubes with edge lengths of 1/4 in. will it take to fill the prism?
Ulleksa [173]

Answer:

1560

Step-by-step explanation:

First (2 1/2)/(1/4) = (5/2)(4) = 20/2 = 10

Next, 3/(1/4) = 3(4) = 12

Lastly, (3 1/4)/(1/4) = (13/4) x 4 = 52/4 = 13

This means we need 10 rows of 12, 13 high. 10(12)(13) = 1560 cubes.

Another way is to multiply 2 1/2 x 3 x 3 1/4 = 5/2 x 3 x 13/4 = 195/8

A 1/4 inch cube is 1/4 x 1/4 x 1/4 for a volume of 1/64

(195/8)/(1/64) = (195/8)(64) = 1560 cubes.

3 0
2 years ago
How do I find the image after it’s been rotated 270 degrees about the point (-2,-1)?
White raven [17]

Answer: (-1, 2)

Step-by-step explanation:

<u>It's a counter-clockwise rotation, that means (x, y) changes to (y, -x).</u>

(-2, -1) ⇒ (-1, -(-2)) ⇒ (-1, 2)

<u>If it's a clockwise rotation, then (x, y) will change to (-y, x)</u>

(-2, -1) ⇒ (-(-1), -2) ⇒ (1, -2)

7 0
3 years ago
Ram, Shyam and Moha purchased biscuits of different brands P, Q and R. Ram purchased 10 packets of P, 7 of Q and 3 packets of R.
qwelly [4]

The amount of money spent by these persons individually will be $ 93, $116, and $ 99.

<h3>What is the matrix?</h3>

A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The a_{ij} element in a matrix, such as M, refers to the i-th row and j-th column element.

Ram, Shyam, and Mohan purchased biscuits from different brands P, Q, and R.

Ram purchased 10 packets of P, 7 packets of Q, and 3 packets of R.

Shyam purchased 4 packets of P, 8 packets of Q, and 10 packets of R.

Mohan purchased 4 packets of P, 7 packets of Q, and 8 packets of R.

If brand P costs € 4, Q costs € 5, and R costs € 6 each.

Then the amount of money spent by these persons individually will be

Then these are shown in the form of a matrix. Then we have

\begin{bmatrix}10 & 7 & 3 \\4 & 8 & 10 \\4 & 7 & 8 \\\end{bmatrix}  \begin{bmatrix}4  \\ 5  \\ 6  \\\end{bmatrix}

Then the amount of money spent by these persons individually will be

\begin{bmatrix}10 & 7 & 3 \\4 & 8 & 10 \\4 & 7 & 8 \\\end{bmatrix}  \begin{bmatrix}4  \\ 5  \\ 6  \\\end{bmatrix} = \begin{bmatrix}  93\\ 116 \\99  \end{bmatrix}

More about the matrix link is given below.

brainly.com/question/9967572

#SPJ1

5 0
2 years ago
In New York, state sales tax rates vary by county. In Allegany County, the sales tax rate is 8 1 2 %. A pair of shoes costs $29.
Liono4ka [1.6K]

Answer:

  • $1.19

Step-by-step explanation:

  • The tax is 8 1/2% = 8.5%
  • A pair of shoes = $29.99
  • A shirt = $15.99

<u>The difference in the cost:</u>

  • $29.99 - $15.99 = $14

<u>Tax on the difference:</u>

  • $14*0.085 = $1.19
5 0
3 years ago
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