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kenny6666 [7]
4 years ago
13

Write an expression equivalent to 3(x-7)

Mathematics
2 answers:
Bond [772]4 years ago
7 0
3(x-7) is where you do distributive property and multiply 3 times x and 3 times 7 so it will be 3x-21
maria [59]4 years ago
5 0

Answer:

3x-21

Step-by-step explanation:

3*x+3*(-7)=3x-21

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What is the volume of the cube shown?<br> 112 in<br> 30 in<br> 6<br> in<br> 2<br> in
Elenna [48]

Answer:

11 \frac{25}{64}

<h3>First answer is correct</h3>

Step-by-step explanation:

2 \frac{1}{4}  \times 2 \frac{1}{4}  \times 2 \frac{1}{4}  \\  \frac{9}{4}  \times  \frac{9}{4}  \times  \frac{9}{4}  \\  =  \frac{729}{64}   \\ = 11 \frac{25}{64} \:  \:  \:   {in}^{3}

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Read 2 more answers
A farmer plans to fence a rectangular corral. The diagonal distance from one corner of the corral to the opposite corner is five
garik1379 [7]

Answer:

Length of diagonal is 7.3 yards.

Step-by-step explanation:

Given: The diagonal distance from one corner of the corral to the opposite corner is five yards longer than the width of the corral. The length of the corral is three times the width.

To find: The length of the diagonal of the corral.

Solution: Let the width of the rectangular garden be <em>x</em> yards.

So, the length of the diagonal is x+5

width of the rectangular corral is 3x

We know that the square of the diagonal is sum of the squares of the length and width.

So,

(3x)^{2} +x^{2} =(x+5)^{2}

9x^{2} +x^{2} =x^{2}+10x+25

9x^{2}-10x-25=0

9x^{2}-10x-25=0

x=\frac{-b\pm\sqrt{b^{2} -4ac} }{2a}

x=\frac{10\pm\sqrt{(-10)^{2} -4(9)(-25)} }{2(9)}

x=\frac{10\pm\sqrt{100}}{18}

Since, side can't be negative.

x=\frac{5}{9}+\frac{5}{9}\sqrt{10}

Now, length of the diagonal is

5+\frac{5}{9}+\frac{5}{9}\sqrt{10}

Hence, length of diagonal is 7.3 yards.

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3 years ago
If you work for an hourly wage, your gross pay is a function of the number of hours that you work. Your hourly wage is $8.50 per
Ket [755]

Answer:

f(n) = 8.5n

Step-by-step explanation:

$8.50 * n = Gross

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3 years ago
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