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nikitadnepr [17]
3 years ago
14

Find b. Question 19 options:70.157.731.543.8

Mathematics
1 answer:
Reptile [31]3 years ago
6 0

Answer: 57.7

Step-by-step explanation:

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A bag has 5 red marbles, 4 blue marbles, 8 green marbles, and 3 yellow
kozerog [31]

<u>Answer:</u>

  • 40% of the total marbles are green.

<u>Step-by-step explanation:</u>

Percentage: Green marbles/Total marbles

  • => 8/5 + 4 + 8 + 3
  • => 8/20

<u>Percentage formula:</u> \frac{a}{b} (100)<u />

  • => 8/20 x 100
  • => 8 x 5
  • => 40

Hence, 40% of the total marbles are green.

Hoped this helped.

BrainiacUser1357

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artcher [175]
Where is the number line
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QUIZ<br> Find the volume of the square pyramid.<br> 9 cm<br> 4 cm
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Answer:

SEE BELOW

Step-by-step explanation:

V=a²h/3
=9² x 4/3
= 81 x 4/3
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2 years ago
Given a function, describe how to find the average rate of change over a given interval.
icang [17]

Answer:

To find the average rate of change, we divide the change in the output value by the change in the input value. The Greek letter Δ (delta) signifies the change in a quantity; we read the ratio as “delta-y over delta-x” or “the change in y divided by the change in x”.

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3 years ago
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If A and B are 7 x 2 matrices, and C is a 4x7
Nata [24]

Answer:

  A, B, D, F

Step-by-step explanation:

Matrix operations require that the matrix dimensions make sense for the operation being performed.

Matrix multiplication forms the dot product of a row in the left matrix and a column in the right matrix. That can only happen if those vectors have the same dimension. That is the number of columns in the left matrix must equal the number of rows in the right matrix.

Matrix addition or subtraction operates on corresponding terms, so the matrices must have the same dimension.

The transpose operation interchanges rows and columns, so reverses the dimension numbers. It is a defined operation for any size matrix.

<h3>Defined operations</h3>

A. CA ⇒ (4×7) × (7×2) . . . . defined

B. B -A ⇒ (7×2) -(7×2) . . . . defined

C. B -C ⇒ (7×2) -(4×7) . . . undefined

D. AB' ⇒ (7×2) × (2×7) . . . . defined

E. AC ⇒ (7×2) × (4×7) . . . undefined

F. C' ⇒ (7×4) . . . . defined

5 0
1 year ago
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