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Tresset [83]
3 years ago
8

The inequality answer because I'm very very confused ​

Mathematics
1 answer:
Gnom [1K]3 years ago
3 0

Answer:

You dont have a question

Step-by-step explanation:

add one using the paper clip.

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Is it scalene isosceles or equilateral then write acute obtuse or right thx
almond37 [142]
It's scalene because it has different sides and obtuse because root 40²+30²=50
110>50
4 0
3 years ago
What is equivalent to <br> (3x+1)(4x-1)
valentinak56 [21]
(3x+1)(4x-1)

3x+4x=7x
1-1=0

So

(3x+1)(4x-1) = 7x

I hope this helped and was right, have a nice day
4 0
2 years ago
Which of the following diagram represent a relation that is not a function​
andrew11 [14]
You didn’t even post a diagram

which of the following diagram represent a relation that is not a function
8 0
2 years ago
A researcher is going to estimate the average typing speed of students of a college. He selects a random sample of 20 students a
Stella [2.4K]

Answer:

The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 20 - 1 = 19

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.7291

The margin of error is:

M = T\frac{s}{\sqrt{n}}

In which s is the standard deviation of the sample and n is the size of the sample. For this question, we have s = 5, n = 20. So

M = T\frac{s}{\sqrt{n}}

M = 1.7291\frac{5}{\sqrt{20}}

M = 1.933

The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.

8 0
3 years ago
Solve:
harina [27]

Answer:

x = 0

Step-by-step explanation:

Write the number in exponential form with the base of 2:

{2}^{x - 3}  =  {2}^{ - 3}

Since the bases are the same, set the exponents equals.

x - 3 =  - 3

Cancel equal terms on both sides of the equation:

x = 0

8 0
3 years ago
Read 2 more answers
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