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11111nata11111 [884]
3 years ago
11

Solve 7(-1 + 4x) – 12x = 5. Check your solution.

Mathematics
2 answers:
jek_recluse [69]3 years ago
5 0
The answers is 3/4 and if it’s in decimal form it will be 0.75
Rzqust [24]3 years ago
3 0

Answer:

x=\frac{3}{4} or 0.75

Step-by-step explanation:

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Can someone explain ?
Vika [28.1K]

Answer:

see below

Step-by-step explanation:

sqrt(90)

We know that sqrt(ab) = sqrt(a) sqrt(b)

sqrt(9*10)

sqrt(9) sqrt(10)

3*sqrt(10)

8 0
3 years ago
The population of Laredo, Texas, was about 215,500 in 2007. It was about 123,000 in 1990. If we assume that the population growt
Mazyrski [523]

Answer:

hello, This can be solved using your standard rise over run slope calculation.  Think of the number of years after 1990 as your input variable.  2007 would be 17 years after 1990, so the "y" variable would be 17.  This is your "run", and it goes in the denominator of your slope calculation.  Then the difference between the 2007 population and the 1990 population would be the "p" variable difference, the "rise", which is 92500.  Dividing, you will get 5441.17.  Since we're talking about humans, we can't have a decimal, so let's round up to 5442.

 

Using the slope-intercept form of a linear equation (y = ax + b), we will say that p = 5442y + 123000.  Do you know why we add the 123000?  It's because that's the starting value, which is equivalent to the "intercept" in the slope-intercept form.

 

Hope this helps.

Step-by-step explanation:

6 0
3 years ago
How many pence is 1 shilling
Shkiper50 [21]

Answer:

Twelve pence made a shilling

I hope this is the ans

4 0
3 years ago
The battery standby duration (in hours) of a new model of cell phone is known to be normally distributed. Ten pieces of such new
Stells [14]

x = number of hours

want to find probability (P) x >= 13

x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.

P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413

To convert that to percentage, multiply 100, to get 84.13%

3 0
3 years ago
Which transformations can be used to map a triangle with vertices A(2, 2), B(4, 1), C(4, 5) to A’(–2, –2), B’(–1, –4), C’(–5, –4
lina2011 [118]

Answer: Hewo, there! your answer is Below

a 90 clockwise rotation about the origin and a reflection over the y-axis

Step-by-step explanation:

Hope this helps you !!!

Have a great day!!!

3 0
3 years ago
Read 2 more answers
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