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3 years ago

What is the domain of the step function f(x) = [2x] – 1?

Mathematics

2 answers:

omeli [17]3 years ago

6 0

You have troubles with domains only if you have:

Denominators
Roots with an even degree
Logarithms

In this case, you have neither of these three, so you can compute your function wherever you want. The domain is all real numbers.

Leya [2.2K]3 years ago

4 0

Answer:

d all real numbers......:)

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Measuring Circles: Question 1

andreev551 [17]

Answer:10.51inches

Step-by-step explanation:

circumference=66

Radius=circumference ➗ (2xπ)

Radius=66 ➗ (2x3.14)

Radius=66 ➗ 6.28

Radius=10.51inches

7 0

3 years ago

Mary used Delicious (d) and Golden Delicious (g) apples to make homemade applesauce. Delicious apples are $0.75 each and Golden

alina1380 [7]

Answer:

Mary bought 9 Golden Delicious apples

Step-by-step explanation:

This can be solved by setting up a system of equations. Based on the information given, the equations would be set up as follows.

$.75d+1.25g=21.00\\d+g=22$

I prefer to solve using substitution, but elimination can be used as well

$.75d+1.25g=21.00\\g=22-d$

We can now plug in this g value to the first equation

$.75d + 1.25 (22-d)=21.00\\.75d + 27.5-1.25d=21\\27.5-0.5d=21\\-.5d=-6.5\\d=13$

This means mary bought 13 delicious apples. She bought 22 apples in total, so the total number minus the amount of delicious apples will give us the amount of golden delicious apples.

22 - 13 = g

9 = g

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`

Let me know if you have any questions! Spread the love.

3 0

2 years ago

If Jenny can read 7 books in 8 days, exactly how many days would it take her to read 20 books?

muminat

Answer:

Step-by-step explanation:

Given,

No. of days taken by Jenny to read 7 books

= 8

So,

No. of days taken by her to read 1 book

$= \frac{8}{7}$

Therefore,

No. of days taken by her to read 20 books

$= \frac{8}{7} × 20$

[On Simplification]

$= \frac{160}{7}$

[On dividing]

= 22.85.....

[On approximating]

= 23 days (approx. )

Hence,

Jenny will take 23 days to read 20 books (Ans)

3 0

2 years ago

Read 2 more answers

4) At a store, pears cost $0.74 per pound. How much will 3.5 pounds of pears cost?

erica [24]

Answer:

$2.59

Step-by-step explanation:

.74 per pound

pounds=3.5

.74x3.5=$2.59

3 0

2 years ago

W+1/8 =8 plzz help me i need it

Marina CMI [18]

Answer:

w = 7 7/8

Step-by-step explanation:

w + 1/8 = 8

First, subtract 1/8 from both sides of the equation

w + 1/8 = 8

- 1/8 - 1/8

w = 7 7/8

8 0

3 years ago

Read 2 more answers