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3241004551 [841]
3 years ago
5

7x/z=10-r solve for x

Mathematics
1 answer:
baherus [9]3 years ago
4 0
Answer is:

x= 10z/7 - rz/7

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What is the recursive rule for the sequence?
Marrrta [24]

The next term is 1.4 larger than the one before it, so the appropriate choice is

a_{n}=a_{n-1}+1.4 \quad\mbox{where}\ a_{1}=1.4

_____

However, the description

a_{n}=a_{n+1}-1.4 \quad\mbox{where}\ a_{1}=1.4

also correctly describes the relationship between a1 and a2, for example. While this equation is technically correct, it is less useful to work with, so is probably not the expected answer.

4 0
3 years ago
1) What are the real zeroes of x3 + 6 x2 – 9x – 54?
love history [14]
A polynomial with a degree of 3 is understood to have three zeroes or roots. In the given problem in 1, x3 + 6 x2 – 9x – 54, the roots of the polynomial using the calculator are B. B. 3, -3, -6. The same applies for number 2 given the polynomial x3 – 4x2 + 3x – 12. The answer in 2 is D. 4 years. The roots of the polynomial in 3 are: 

<span>x1=−0.45117</span>

<span><span>x2</span>=1.77474</span>

<span><span>x3</span>=0.03821+0.70576∗i</span>

<span><span><span>x4</span>=0.03821−0.70576∗i. Hence there is A. 1 negative root.</span></span>

8 0
3 years ago
Read 2 more answers
why does it take 3 copies of 1/3 ti show the same anount as 1 copy of 1/2? Explain your answer in words and picture
Alexandra [31]
It is simply yes because 1*3,1*2
7 0
4 years ago
4. Write a story about temperatures that this expression could represent 42 + (-27).
Masja [62]

Answer:

Step-by-step explanation:

Yesterday, the average temperature outside in New York is -27 degrees Fahrenheit. Today, the average temperature, luckily, increased by 42 degrees, compared to yesterday's -27 degrees. What is today's average temperature in degrees Fahrenheit?

Hope that helps!

4 0
3 years ago
Notice that the alternative hypothesis is a two-tailed test. Suppose ttest_ind method from scipy module is used to perform the t
Korvikt [17]

Answer:

The <em>p</em>-value of the test is 0.0512.

Step-by-step explanation:

The <em>p</em>-value of a test is well-defined as per the probability, [under the null hypothesis (H₀)], of attaining a result equivalent to or more extreme than what was the truly observed value of the test statistic.

In this case the output of the t-test_ind method from scipy module is provided as follows:

Output = (-1.99, 0.0512)

The first value within the parentheses is the test statistic value.

So the test statistic value is, -1.99.

And the second value within the parentheses is the <em>p</em>-value of the test.

So the <em>p</em>-value of the test is 0.0512.

6 0
3 years ago
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