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rewona [7]
3 years ago
11

Write a variable expression for each word phrase: the product of c and 3

Mathematics
1 answer:
mash [69]3 years ago
7 0
Variables are symbols that are used to represent a number in an expression or equation. 

There's one word phrase here, and it's answer is: c*3

If you need help with another one, just let me know! :)
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simplify 5ab+9a-ab-7a and justify each step as associative , distributive, commutative, or additive property.
Vladimir [108]

Answer:

5ab-ab+9a-7a

ab(5-1)+a(9-7)

4ab+2a

a(4b+2)

7 0
3 years ago
. What are the exact solutions of x2 - x - 4 = 0?
Dimas [21]
X ² - x - 4 = 0
x_{1}  = \frac{1+ \sqrt{1+16}  }{2}= \frac{1+ \sqrt{17} }{2} = 2.56
x_{2} =  \frac{1- \sqrt{17} }{2}= - 1.56
Exact values are x 1 = 2.56 and x 2 = -1.56

7 0
3 years ago
Read 2 more answers
11 divided by 0.1595
schepotkina [342]

Answer:

68.965

Step-by-step explanation:

3 0
3 years ago
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A couple of college students frustrated with the current class registration process decide to survey 500 random students on camp
aleksklad [387]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Standard deviation = \sqrt{(n*p)(1 - p)}

Substitute the values in:

\sqrt{(500 *0.84)(1-0.84)} = 8.1975...

This can be rounded to give an approximate answer of 8.2

The answer is option A.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

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8 0
3 years ago
How do you find the surface area
WITCHER [35]

Answer:

It depends on what shape you have. Here are some formulas for different shapes.

Step-by-step explanation:

Rectangular prism: 2lw + 2lh + 2wh

Cylinder: 2 pi <em>r</em>² + 2 pi <em>rh</em>

Sphere: 4 pi <em>r</em>²

Cone: pi <em>r</em>² + pi <em>rl</em>

Square-based pyrimid: 1/2<em>lp</em> +<em>B</em>

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I hope this helps!

3 0
3 years ago
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