All categories

3 years ago

Let \[f(x) = \frac{3x - 7}{x + 1}.\] find the domain of f. give your answer as an interval.

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

5 0

The domain of f is all real numbers except for -1.

so the domain is x ∈ (-∞,-1)U(-1,∞)

You might be interested in

Select the outlier in the data set. 72 82 86 88 89 92 96 98 306

chubhunter [2.5K]

Answer:

306

Step-by-step explanation:

An outlier is a number that is not near the other numbers

306 is not near the other numbers

6 0

3 years ago

a triangle has angles measuring 45°, 55°, and 80°. it is dilated by a scale factor of 2. what are the angle measures, in order f

EastWind [94]

Answer:

$45$ °, $55$ °, and $80$ °

Step-by-step explanation:

Dilations preserve angle measures, regardless of the scale factor. Therefore, the angle measures of the image will be the same of that of the pre-image, so our answer is still $45$ °, $55$ °, and $80$ °. Hope this helps!

4 0

3 years ago

The equation below describes a proportional relationship between x and y. What is the constant of proportionality?

seraphim [82]

5.36 is the constant of proportionality
i am wondering if u can give me the brainliest.

3 0

4 years ago

Read 2 more answers

Five more than twice a number is??

kenny6666 [7]

Answer:

2x+5

Step-by-step explanation:

If you say something is twice a number you multiply it by 2. Therefore we have 2x, x meaning whatever number you want to plug in. Five more means that you have to add 5 to the previous solution.

5 0

3 years ago

Find the median, lower quartile, and upper quartile for the set of data.

harkovskaia [24]

$\text{Find the median:}\\\\\text{To find the median, you would cross out the numbers from the side}\\\text{until you're left with the remainders. Put them in order and solve}\\\\1, 2, 4 ,5, 6, 7, 8, 9, 10, 11\\\text{Add 6 and 7 then divide by 2}\\\\6+7=13\\\\11\div2=6.5\\\\\boxed{\text{The median is 6.5}\\}\\\\\text{The lower quartile is the median of the numbers less than the median, so}\\\text{the numbers from 1-6}\\\\\text{When you cross out the numbers, you would be left with 4}$

$\boxed{\text{The lower quartile is 4}}\\\\\text{Do the same for the upper quartile for the numbers greater than half}\\\text{of the data set}\\\\\boxed{\text{Your upper quartile would be 9}}$

8 0

3 years ago

Read 2 more answers