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kolezko [41]
3 years ago
7

Evaluate the algebraic expression 6x-2 when X=5/6

Mathematics
1 answer:
Neko [114]3 years ago
4 0

Answer:

3

Step-by-step explanation:

Substitute x = \frac{5}{6} into the expression

6x - 2

= 6 × \frac{5}{6} - 2

= 5 - 2

= 3

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What is the volume of a square pyramid with a base side length of 9 and a height of 11.
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V = 297 for a square pyramid, I hope its right..
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3 years ago
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The volume of a rectangular box is 330 cubic inches. The length on one side of the top is 11 inches, and the height of the box i
Fiesta28 [93]

Answer: 110 square inches.

Step-by-step explanation:

The volume of a rectangular box would be:

V=length*width*height

In this case, we know the volume, the length and the height, and we don't know the width, so we're going to isolate it:

width=\frac{V}{length*height}

Substituting the data:

width=\frac{330}{11*3} =10in

This width is also the width of the top of the box, so the area of the top would be:

A=length*width\\A=11*10\\A=110in^{2}

5 0
3 years ago
What is the quadratic formula of 4x2+3x+5=0
maxonik [38]
4x² + 3x + 5 = 0
x = <u>-3 +/- √(3² - 4(4)(5))</u>
                   2(4)
x = <u>-3 +/- √(9 - 80)</u>
                 8
x = <u>-3 +/- √(-71)
</u>                8<u>
</u>x = <u>-3 +/- √(71 × (-1))</u>
                   8
x = <u>-3 +/- √(71) × √(-1)
</u>                    8<u>
</u>x = <u>-3 +/- 8.43i
</u>              8
x = -0.375 +/- 1.05375i
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<u />
3 0
3 years ago
List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f
Amanda [17]

Answer:

\bf x_1 = 2\\x_2 = 4\\x_3=6\\x_4=8

Step-by-step explanation:

The given interval : x = 0 to x = 10

Length of interval = 10 - 0

                              = 10

\text{Now, each }x_i \text{ is midpoint and endpoint of the five equal intervals}

⇒ Number of equal intervals = 5

\textbf{Length of each interval = }\frac{10}{5}

\textbf{Therefore, }\bf x_1 = 0 + 2 = 2\\x_2 = 2 +2 =4\\x_3=4+2=6\\x_4=6+2=8

3 0
3 years ago
Use braces and digits to designate the set of natural numbers.
alina1380 [7]

Answer:

N = \{1,2,3,4,5,6,.....\}

Step-by-step explanation:

Required

Determine the sets of natural number

Represent this set with letter N

From definition of natural numbers, they are integer numbers starting from 1;

In other words: 1,2,3,4,5, and so on.

To represent this as a set of N, we have

N = \{1,2,3,4,5,6,.....\}

<em>The ..... means that the counting still continues</em>

6 0
3 years ago
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