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AleksandrR [38]
3 years ago
6

What is the coefficient of the variable in the expression 2 - 5x – 4 + 8?

Mathematics
1 answer:
Natalija [7]3 years ago
3 0

Answer:

-5

Step-by-step explanation:

The coefficient is the number attached to the variable.

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How many tissues should the kimberly clark corporation package of kleenex contain? researchers determined that 60 tissues is the
Agata [3.3K]

Answer:

Step-by-step explanation:

For the null hypothesis,

µ = 60

For the alternative hypothesis,

h1: µ < 60

This is a left tailed test

Since the population standard deviation is not given, the distribution is a student's t.

Since n = 100,

Degrees of freedom, df = n - 1 = 100 - 1 = 99

t = (x - µ)/(s/√n)

Where

x = sample mean = 52

µ = population mean = 60

s = samples standard deviation = 22

t = (52 - 60)/(22/√100) = - 3.64

We would determine the p value using the t test calculator. It becomes

p = 0.00023

We would reject the null hypothesis if α = 0.05 > 0.00023

5 0
3 years ago
Plz help as many times as i try i still don't get it
shepuryov [24]
I do know the bottom one is 2.8
Top is 1.6
I don’t know the middle one
3 0
3 years ago
Read 2 more answers
If f(x) = 5x, what is f–1(x)?
Verdich [7]
We are given f(x) = 5x
and we are to find inverse of f(x).

Step 1:
Replace f(x) by y.
So,

y = 5x

Step 2:
Isolate x
So,

x = y/5

Step 3:
Replace x by f'(y)
So,

f'(y) = y/5

Step 4:
Replace all occurrences of y by x.
So,

f'(x) = x/5

Therefore, the inverse of f(x) = 5x is f'(x) = x/5
7 0
3 years ago
What value of x is in the solution set of –5x – 15 &gt; 10 + 20x?
Sunny_sXe [5.5K]
-5x - 15 > 10 + 20x...subtract 10 from both sides, add 5x to both sides
-10 - 15 > 20x + 5x ...simplify
-25 > 25x...divide both sides by 25
-25/25 > x ....reduce
-1 > x or x < -1 <===

6 0
3 years ago
Help me with my test please
omeli [17]

so square root is really is easyyy put in 6.4 ♾️

6 0
3 years ago
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