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Mamont248 [21]
3 years ago
10

How do u solve 6x-(3+8x)-11 applying the distributive property?

Mathematics
1 answer:
Irina-Kira [14]3 years ago
5 0
Distribute the negative:
6x-3-8x-11
Combine like terms:
-2x-14
Simplify by factoring:
-2(x+7)
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At a hardware store a bag holds up to 1 pound of nails. Each penny nail (x) weighs 0.05 pounds and each wood nail (y) weighs 0.1
Snowcat [4.5K]
0.05x + 0.1y < = 1 (thats less then or equal)
3 0
3 years ago
Read 2 more answers
A random walker is observed to take a total of N steps, n of which are to the right (and the rest n^' are to the left). Suppose
ioda

Answer:

p = 0.635

Step-by-step explanation:

A step to the right is n and on ten different days, it was recorded to be

14, 13, 11, 12, 11, 12, 16, 16, 14, 8.

n = average of all the steps,

The average is the sum of variables divided by the number of variables

Average = (14+13+11+12+11+12+16+16+14+8)/10

Average = 12.7 steps.

σₙ² = variance of n

Variance is an average of the squared deviations from the mean.

[Σ(x - xbar)²/N]

Σ(x - xbar)² = (14-12.7)² + (13- 12.7² + (11-12.7)² + (12-12.7)² + (11-12.7)² + (12-12.7)² + (16-12.7)² + (16-12.7)² + (14-12.7)² + (8-12.7)² = 54.1

Variance = σₙ² = (54.1/10) = 5.41

standard deviation = σₙ = √(variance) = √5.41 = 2.326.

The proportion, p can be computed in two ways.

Mean = Np or standard deviation = √[Np(1-p)]

where N = total number of steps = 20

Mean = 12.7 = 20p

p = (12.7/20) = 0.635

Or

Standard deviation = 2.326 = √[20p(1-p)]

5.41 = 20p - 20p²

20p² - 20p + 5.41 = 0

Solving the quadratic equation,

p = 0.5 + 0.143i or p = 0.5 - 0.143i

not a unique or feasible solution, hence, the probability of a step to the right remains p = 0.635

Hope this Helps!!!

5 0
3 years ago
1/8(5y+64)=1/4(20+2y)
marin [14]
Answer:

<span>y=−24</span>

Explanation:

<span><span>18</span><span>(5y+64)</span>=<span>14</span><span>(2y+20)</span></span>

multiply both sides by 8:

<span>5y+64=2<span>(2y+20)</span></span>

multiply out brackets:

<span>5y+64=4y+40</span>

subtract 4y from both sides:

<span>y+64=40</span>

subtract 64:

<span>y=40−64=−24</span>

<span>y=−<span>24
</span></span>

3 0
3 years ago
Which graph represents the exponential function below f(x)=5(3)^x-1
castortr0y [4]

Answer:

Given Exponential Function is :

f(x)=5\times3^x-1

We have check which graph represent given Exponential Function,

let, y=5\times3^x-1

Put x = 0, we get

y=5\times3^0-1

y = 5 × 1 - 1 = 4

One of the passing through point = ( 0 , 4 )

Now, Put y = 0, we get

0=5\times3^x-1

3^x=\frac{1}{5}

log\,(3^x)=log\,(0.2)

x\:log\,3=log\,0.2

x=\frac{log\,0.2}{log\,3}

x=\frac{log\,0.2}{log\,3}

x = -1.465

Another passing through point is ( -1.465 , 0 )

So, Clearly No Given Option in attached is correct.

Correct Graph is attached.

8 0
3 years ago
Please help and show your work . Thanks if the picture is upside down turn your device on portrait by locking it so it won't tur
Bezzdna [24]
So we know that the bag has total 15 cookies, and 1 cookie that does not have any raisin. Finally, the probability that one cookie won't have any raisin is 1/15 or 7 percent. Hope it help!
3 0
3 years ago
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