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mina [271]
1 year ago
11

What's the expression for the given value of the variable. 3x+5 when x=5

Mathematics
1 answer:
Pepsi [2]1 year ago
8 0

1) Let's evaluate that expression

3x+5

2) Since the value of x has been given, then let's plug that into the expression

3x+5

3(5) +5

15 +5

20

3) The answer is 20

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A rectangle has a perimeter 204 it’s length six feet longer than twice it’s width if L stands for the rectangle and W stands for
andriy [413]

Answer:

W=32

L=70

Step-by-step explanation:

L=2w+6

204=2L+2W

204=2w+2(2w+6)

204=2w+4w+12

192=6w

w=32

L=2(32)+6

L=70

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3 years ago
The diamond rule says two factors m and n must multiply to get to the top number and add to get to the bottom number what are th
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4 and 7

Step-by-step explanation:

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2 years ago
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Its been a while since ive been on this site, school reminded me of it lol
rewona [7]

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Step-by-step explanation:

8 0
2 years ago
Simplify 3/8+3/5 Btw these are fractions thats why I put a /
tangare [24]

3/8 + 3/5 = <u>39/40</u> and 39/40 Can't be <em>simplified</em>

4 0
3 years ago
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HELP FAST PLEASE!!!
Alisiya [41]

Answer:

y = -0.75x + 9.5

Step-by-step explanation:

Equation of a circle is given as :

(x-a)^{2} + (y-b)^2 = r^{2} \\(x-6)^{2} + (y-5)^2 = 4^{2}\\x^{2} - 12x + 36 + y^{2} -10y + 25 = 16\\x^{2} - 12x  + y^{2} -10y + 45 = 0\\

Take the derivative of the above with respect to x

2x - 12 + 2y dy/dx - 10 dy/dy = 0\\\frac{dx}{dy} = \frac{6 - x}{y-5} \\At (2,8) dy/dx = (6-2)/(8-5) = 4/3\\dy/dx = 4/3\\The slope of the tangent to the circle, m = \frac{-1}{dy/dx} \\m = \frac{-1}{4/3}\\m= -0.75

The equation of the tangent is given by :

y - y_{1} = m(x - x_{1})\\ y - 8 = -0.75(x - 2)\\y - 8 = -0.75x + 1.5\\y = -0.75x + 9.5

8 0
3 years ago
Read 2 more answers
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