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sergiy2304 [10]
3 years ago
12

I need the reasoning?

Mathematics
1 answer:
morpeh [17]3 years ago
6 0

Answer:

2. This is only true when x=-3.

3. This is only true when x=3.

4. This is only true when x=12.

5. This has no solution.

6. This has an infinite number of solutions.

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Solve for X.<br><br> 1 + 4.5x + 4.9x = -8.4<br><br> Please Show work
Alinara [238K]

Answer:

-1

Step-by-step explanation:

1+4.5x+4.9x=-8.4

4.5x+4.9x=-8.4-1

9.4x=-9.4

x=-9.4/9.4

x=-1

5 0
3 years ago
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Help Needed MATH!!!!! Will give 28 Points!!!!!!!!!!
stiks02 [169]

Answer its 20


Step-by-step explanation:


7 0
4 years ago
There are two numbers. one number is twice the other number. the difference of the smaller number and half the larger number is
kumpel [21]

Let's assume x be the number.

Given that, one number is twice the other number. Hence, the second number be 2x.

So, x= smaller number and 2x= larger number.

Given that, difference of x and half of 2x is 20. Hence,

\frac{1}{2} (2x)-x=20

x-x=20 (By simplifying)

0=20

From the above result we can see that x has vanish and we are left with 0=20 which is mathematically not correct.

Hence, there is no solution.

7 0
3 years ago
Cody can walk 1/3​ of a mile in 1/6​ of an hour. How many miles can he walk in 2 1/3 hours ​if he continues at the same pace?
shepuryov [24]

Answer: 14/3 miles

Step-by-step explanation: Miles divided by hours gives speed

1/3÷1/6 = 2 mph

Distance= speed × time

2 1/3 is 7/3 7/3×2 = 14/3

7 0
3 years ago
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Given f(x) = 2x^2 -3x and g(x) = x+4
Alenkasestr [34]

Answer:

2x³ + 5x² - 12x

Step-by-step explanation:

The correct answer doesn't seem to be listed...

(fg)(x) = (2x² - 3x)(x + 4)

Which equals...

2x²(x) + 2x²(4) + (-3x)(x) + (-3x)(4)

Which simplifies to...

2x³ + 8x² - 3x² - 12x

     2x³ + 5x² - 12x

8 0
3 years ago
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