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makkiz [27]
4 years ago
11

Which expression is equivalent to the following expression? 4(x + 3) + 6(x - 3)

Mathematics
1 answer:
yuradex [85]4 years ago
4 0

Answer:

The equivalent expression is 10x-6.

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A line passes through (-2,7) and had a slope of -1
balu736 [363]

Answer:

y=-x+5 if parallel and perpendicular

if needed in point slope form : y-7 = -1(x+2)

Step-by-step explanation:

4 0
3 years ago
A culture of 2.4X10^11 bacteria is in a Petri dish A. A culture of 8X10^9 bacteria is in Petri dish B. How many times greater is
Citrus2011 [14]

A culture of 2.4 × 10^11 bacteria is in a Petri dish A

A culture of 8 × 10^9 bacteria is in Petri dish B

Number of times number of bacteria in Petri dish A is greater than that number in Petri dish B:

\frac{Number of bacteria in Petri dish A}{Number of bacteria in Petri dish B} = \frac{2.4 * 10^11}{8 * 10^9}

Divide 2.4 by 8 to give 0.3

Divide 10^11 by 10^9 to give 10^(11-9) = 10^2

The answer is 0.3 × 10²


7 0
3 years ago
A spice mix recipe calls for 8 cups of salt, 6 cups of grounded black pepper, and 2 cups of garlic powder. How many cups of spic
stealth61 [152]

Answer:

There are 16 cups of spice mix will made by the recipe.

Step-by-step explanation:

Given,

Number of cups of salt = 8

Number of cups of grounded black pepper = 6

Number of cups of garlic powder = 2

We have to find out number of cups of spice mix made by recipe.

Solution,

The total number of cups of spice mix is the sum of amount of salt, amount of grounded black pepper and amount of garlic powder.

So the equation can be framed as;

Total number of cups of spice mix = 8+6+2=16\ cups

Hence There are 16 cups of spice mix will made by the recipe.

7 0
3 years ago
The present price of a motorcycle is
miv72 [106K]

Answer:

Motorcycle= 2,25,000

Year 1 =2,25,000*92/100= 207 000

Year 2= 207 000*0.92= 190 440

Year 3= 190 440*0.92= 175 204.80

Ans. Year 3

8 0
3 years ago
What are the roots of the polynomial equation x4+x3=4x2+4x? Use a graphing calculator and a system of equations.
ivann1987 [24]
x^4+x^3=4x^2+4x\\\\x^4+x^3-4x^2-4x=0\\\\x\Big[x^3+x^2-4x-4\Big]=0\\\\
x\Big[x^2\big(x+1\big)-4\big(x+1\big)\Big]=0\\\\x\Big[\big(x+1\big)\big(x^2-4\big)\Big]=0\\\\x\big(x+1\big)\big(x^2-4\big)=0\\\\
x\big(x+1\big)\big(x+2\big)\big(x-2\big)=0\\\\\\x=0\quad\vee\quad x+1=0\quad\vee\quad x+2=0\quad\vee\quad x-2=0\\\\
\boxed{x=0\quad\vee\quad x=-1\quad\vee\quad x=-2\quad\vee\quad x=2}

Answer A.
6 0
4 years ago
Read 2 more answers
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