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ki77a [65]
3 years ago
13

2(2x - 5) + 6 = 20solve for xplease show stepsx=_​

Mathematics
2 answers:
Sloan [31]3 years ago
7 0

Answer:

Step-by-step explanation:

The first step is to distribute.

2(2x)      2(5)

this will give you 4x and 10.

4x +10 +6=20

then, you add 10 and 6, which will give you 16

4x +16=20

next, you subtract 16 on both sides, which will leave you with 4x =4

x=1

nevsk [136]3 years ago
4 0

Answer:

x = 6.

Step-by-step explanation:

2(2x - 5) + 6 = 20

4x - 10 + 6 = 20

4x - 4 = 20

4x = 20 + 4

4x = 24

x = 24/4

x = 6.

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Determine an equation in simplified form for the family of quartic functions with zeros at 1, -4, (-2+i) and (-2-i). Give your a
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Hello :
an equation : 
(x-1)(x+4)(x+2-i)(x+2+i)
7 0
3 years ago
Enter the number in standard notation.
Jobisdone [24]
<h3>The length in standard notation is 0.05 meter</h3>

<em><u>Solution:</u></em>

Given that,

Jeremy measured the length of an ant as 5 \times 10^{-2}\ meter

We have to write the length in standard notation

From given,

Length = 5 \times 10^{-2}\\\\Length = \frac{5}{10^{2}}\\\\Simplify\\\\Length = \frac{5}{100}\\\\Length = 0.05

Thus the length in standard notation is 0.05 meter

<em><u>Method 2:</u></em>

length = 5 \times 10^{-2}\ meter

Use the exponent of 10 to determine how many places to move the decimal point

Since exponent is -2, is negative

Thus, we have to move the decimal point to right 2 places

5 \times 10^{-2} = 0.05

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5 0
3 years ago
What two numbers add to 4 and, when multiplied together, equal −12?
lara31 [8.8K]
<span>Let x = first number
Let y = second number
x + y = 4
x * y = (-12)
Solve the first equation for x.
x = 4 - y
Now substitute this value of x into the second equation.
(4 - y) * y = (-12)
4y - y² = (-12)
y² - 4y - 12 = 0
(y + 2) * (y - 6) = 0
Now set both polynomials equal to zero
y + 2 = 0
y = -2
y - 6 = 0
y = 6
If you substituted these two values for y into either equation and solve for x, you would get the combination of 6 and -2

Hope I was able to help you! :)
</span>
4 0
3 years ago
Read 2 more answers
There are fourteen songs on your playlist. Eight of them are country and six are
maxonik [38]

Answer: 34.965%

Step-by-step explanation:

Number of ways of selecting 8 songs from 14 songs = = 14! / [ 8! × (14-8)! ]

= 14! / (8! × 6!)

= 3003

If you listended to exactly four country songs, then you should listen to four pop songs because you listened to 8 songs

Number of ways of selecting 4 country songs from total 8 country songs

= 8! / [ 4! × (8-4)! ]

= 8! / (4! × 4!)

= 70

Number of ways of selecting 4 pop songs from total 6 pop songs

= 6! / [ 4! × (6-4)! ]

= 6! / (4! × 2!)

= 15

Number of ways of playing 4 country songs and 4 pop songs in total 8 songs = 70 × 15

= 1050

So Probability that you listened to exactly four country songs =1050/3003

= 0.34965

= 34.965%

7 0
3 years ago
Complete the equation describing how x and y are related. please help !!
dusya [7]

Answer:

y = 0.5x + 1

Step-by-step explanation:

8 0
3 years ago
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