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svlad2 [7]
3 years ago
10

Please help me I’m so confused

Mathematics
1 answer:
shtirl [24]3 years ago
3 0

Answer:

The answer is 51.

Step-by-step explanation:<em>If you take out the f and the g  and do:-1.(-9)+7.(6) that will give you 51</em>

You might be interested in
The standard deviation of a population is known to be 7.8. If the sample size I'd 85, what is the standard error of the mean
12345 [234]

Answer:

The standard error of the mean is 0.85.

Step-by-step explanation:

The given standard deviation of a population (σ) = 7.8

sample size (N) = 85

We have to find standard error of the mean.

The formula to find standard error of the mean

= (standard deviation of the distribution) / (square root of sample size)

= (σ) / (√N)

= 7.8 / (√85)

= 7.8 / 9.219544457

= 0.8460

= 0.85 (approximately taken to two decimal places)

We have got the required answer.

The standard error of the mean is 0.85.



3 0
3 years ago
K=1; f(x)=4x^3-2x^2+2x+4; Lower bound?
photoshop1234 [79]
Given:
f(x) = 4x^{3} - 2x^{2} + 2x + 4
and,
K = 1

We would require to do the synthetic division of the above problem in order to know whether K=1 is a lower bound or not. Let's do it!

Steps of Synthetic Division:

1. Write the coefficients of the equation, and before that write 1. Like,

1 ║ 4   -2   2   4

As you can see, the coefficients of the equation are seperated by ║.

2. Drop down the first value after ║as it is. Like:
1 ║ 4   -2   2   4
        :
----------------------
       4

3. Multiply 4 with 1 and then  place the resultant value under -2 and then add that resultant value with -2. Like
1 ║ 4   -2   2   4
        :    4
----------------------
       4   2

4. Repeat Step 3 until you're done.

1 ║ 4   -2   2   4
        :    4   2   
----------------------
       4   2    4   

1 ║ 4   -2   2   4
        :    4   2   4
----------------------
       4   2    4   8


Now every value, +4, +2, +4, +8, under the bar(---------) is positive; therefore, it means that K=1 is the upper bound, NOT lower bound.

Ans: K=1 is NOT a lower bound.
-i
4 0
3 years ago
Factor the equation below.<br> f(x) = x2 + x - 6
____ [38]

Answer:

3x - 6

Step-by-step explanation:

Uwu if you want me to explain it more let me know

4 0
3 years ago
Which situation involves a conditional probability?
fiasKO [112]
A .The probability that your team wins the championship give that
3 0
4 years ago
What the property says that 5+13=13+5 <br> Associative property or commutative property
Maurinko [17]
It is commutative property.
5 0
2 years ago
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