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yanalaym [24]
3 years ago
13

Solve??????????? 4 and 5

Mathematics
1 answer:
Karolina [17]3 years ago
4 0
4) Solve for x using y = x - 4.
    x = y + 4 
    Now plug x in to y = 6x - 10.
    y = 6(y + 4) - 10
    y = 6y + 24 - 10
    y = 6y + 14
    -5y = 14
    y = -14/5
    Plug y back in to x = y + 4.
    x = -14/5 + 4
    x = 1.2
    (6/5, -14/5)

5) Make the expressions equal to each other.
    2x + 3 = 3x - 6
    9 = x
    x = 9 
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Determine if the sequence below is arithmetic or geometric and determine
klio [65]

Answer:

It is arithmetic

Step-by-step explanation:

Using the rule T2-T1

We see that 16-22 is -6

We can also try T3-T2

We see that 10-16 is also -6

Their is a constant common difference and that constant common difference is -6.

Hope that helps :)

5 0
2 years ago
How many centimeters are equivalent to 5 feet? (12 in = 1 ft)
Anni [7]

Answer:

155.448 cm

Step-by-step explanation:

5.1 ft * 30.48 / 1 cm

= 155.448 cm

A common question is How many foot in 5.1 centimeter? And the answer is 0.1673228346 ft in 5.1 cm. Likewise the question how many centimeter in 5.1 foot has the answer of 155.448 cm in 5.1 ft.

5 0
3 years ago
Read 2 more answers
For 300 trading​ days, the daily closing price of a stock​ (in $) is well modeled by a Normal model with mean ​$196.99 and stand
KATRIN_1 [288]

Answer:

a) 2.5% b) 84% c) 95% d) D. The more unusual day is if the stock closed below $185 because it has the largest absolute z-score.

Step-by-step explanation:

For a) b) and c) we will use the empirical rule, so, we can observe the image shown below

a) 211.23 is exactly two standard deviation above the mean, so, the probability that on a randomly selected day in this period the stock price closed above 211.23 is 2.35% + 0.15% = 2.5%  

b) 204.11 represents exactly one standard deviation above the mean, so, the probability of being below 204.11 is 50% + 34% = 84%

c) The probability of getting a value between 182.75 and 211.23 is 95%, this because 182.75 is exactly two standard deviations below the mean and 211.23 is exactly two standard deviations above the mean.

d) The z-score related to 208 is z_{1} = (208-196.99)/7.12 = 1.5 and the z-score related to 185 is  z_{2} = (185-196.99)/7.12 = -1.7, therefore, the more unusual day is if the stock closed below $185 because it has the largest absolute z-score.

5 0
3 years ago
Send it quick guys...
Paladinen [302]

Answer:

194

Step-by-step explanation:

Recall 2 rules to solve this easily:

1. (a+b)^2=a^2+2ab+b^2

2. (a-b)^2=a^2-2ab+b^2

<em>Now, if we let a = 7  and  b=4\sqrt{3}, we can say the problem is basically of the form:</em>

(a+b)^2 + (a-b)^2

This can be simplified using the rules:

(a+b)^2 + (a-b)^2\\a^2+2ab+b^2+a^2-2ab+b^2\\2a^2+2b^2

Now we can plug the values of a and b we initially thought of (remember though  \sqrt{x} \sqrt{x} =x):

2a^2+2b^2\\2(7)^2+2(4\sqrt{3})^2\\ 2(49)+2(4\sqrt{3})(4\sqrt{3})\\98+2(4)(4)(\sqrt{3} )(\sqrt{3} )\\98+2(4)(4)(3)\\98+96 \\194

194 is the final answer.

7 0
3 years ago
Identify each value that represents the shaded<br> part.
Neko [114]

Answer:

Its 4/10

Step-by-step explanation:

You get 4/10 because there are 10 rows and 10 columns. 10*10 is 100. 40 0f them are shaded so it would be 40/100. You need to simplify by dividing by 10 and you get 4/10.

8 0
2 years ago
Read 2 more answers
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