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andriy [413]
3 years ago
9

Enter a simplified polynomial expression for the area of a parallelogram whose base is (x + 8) units and whose height is (x − 2)

units.
The area of the parallelogram is ? square units.
Mathematics
2 answers:
nikklg [1K]3 years ago
6 0

Answer:

\\x^{2}+6x-16

Step-by-step explanation:

x^2 is exponent 2.

Mashcka [7]3 years ago
5 0

Answer:

(x+8)(x-2) = a

a = x^2 -2x + 8x - 16

<em><u>Area = x^2 + 6x - 16</u></em>

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Please help with this word problem! plz
Elena-2011 [213]
Answer = 5.5 x 5.5 = 30.25
5 0
3 years ago
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3x/5=30 solve the equation
Bess [88]

Answer:

Step-by-step explanation:

To solve equations like this you need to to get x by itself.

So, Let's multiply both sides by 5 to get rid of 5.

3x/5 *5 = 30 * 5

= 3x = 150

Now we divide both sides by 3 to get x by itself,

3x/3 = 150/3

x = 50

4 0
3 years ago
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It has a time to failure distribution which is normal with a mean of 35,000 vehicle miles and a standard deviation of 7,000 vehi
Triss [41]

Answer:

The designed life should be of 21,840 vehicle miles.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 35,000 vehicle miles and a standard deviation of 7,000 vehicle miles.

This means that \mu = 35000, \sigma = 7000

Find its designed life if a .97 reliability is desired.

The designed life should be the 100 - 97 = 3rd percentile(we want only 3% of the vehicles to fail within this time), which is X when Z has a p-value of 0.03, so X when Z = -1.88.

Z = \frac{X - \mu}{\sigma}

-1.88 = \frac{X - 35000}{7000}

X - 35000 = -1.88*7000

X = 21840

The designed life should be of 21,840 vehicle miles.

3 0
3 years ago
What is the value of k in the equation 2/7(k+5/8)=2 2/7
shusha [124]
2/7 ( k+5/8) = 2 and 2/7

2/7 (k+5/8) = 16/7     |multiply by 7

2(k+5/8) = 16     |divide by 2

k+5/8 = 8     |subtract  5/8

k=8-5/8 = 7 and 3/8 = 27/8 = 7.375 


7 0
3 years ago
Which of the following rules could represent the function shown in the table?
kvasek [131]
ANSWER

The rule is given by the relation,

y = 2x + 1


EXPLANATION

We need to check and see if there is a constant difference between the y-values.


1 -  - 1 = 2 = 3 - 1


We can see that, there is a constant difference of 2.

This means that the table represents a linear relationship.


Let the rule be of the form,
y = mx + c


Then the points in the table should satisfy the above rule.


So let us plug in


(0,1)


This implies that,


1 =m (0) + c


1 = 0 + c


c = 1



Our rule now becomes,


y = mx + 1 -  - (1)


We again plug in another point say, (-1,-1) in to equation (1) to get,



- 1 = m( - 1)   + 1

we solve for m now to obtain,

- m=-1-1


- m =  - 2


m = 2
We now substitute back in to equation (1) to get

y = 2x  + 1
5 0
3 years ago
Read 2 more answers
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