1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kondaur [170]
3 years ago
14

Evaluate each expression for x = -7.

Mathematics
1 answer:
Nitella [24]3 years ago
4 0
A.
| -7 -3 |
| -10 |
10

Final answer: 10

b.
| -7+3 |
| -4 |
4

Final answer: 4
You might be interested in
What lowest terms fraction is equal to 15%?
Leno4ka [110]

Answer: 3/10

Step-by-step explanation: To write a percent as a fraction in lowest terms, remember that a percent is a ratio that compares a number to 100. In this case, 15% can be written as the ratio 15 to 100 or 15/100.

Notice however that 15/100 is not in lowest terms so we need to divide the numerator and the denominator by 5 which gives us 3/10.

Therefore, 15% can be written as the fraction 3/10.

6 0
3 years ago
if the bacteria population is doubling every hour, can you estimate the bacteria population at the time of 10 hours?
anygoal [31]

Answer:

Bacterial population at the time of 10 hours = 1040000

Step-by-step explanation:

Let the function that defines the bacterial population after 'x' hours is,

p(x) = a(b)ˣ

Where a = Initial population

And 'x' = Duration or time

Since bacterial population is getting doubled every hour,

2a = a(b)¹

b = 2

Therefore, function will be,

p(x) = a(2)ˣ

From the graph attached,

Point (5, 32500) lies on the graph of the function.

32500 = a(2)⁵

a = \frac{32500}{32}=1015.625

Therefore, the function will be,

p(x) = 1015.625(2)ˣ

For x = 10 hours,

p(10) = 1015.625(2)¹⁰

        = 1040000 bacteria

5 0
3 years ago
There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag. What is the theoretical probability of randomly drawing
mestny [16]
The probability of drawing a red marble is 20%
7 0
3 years ago
Read 2 more answers
X^2+10x-6=0.........
Georgia [21]
Puting it into the quadrait equation ((-b+-[b^2-4ac]^(1/2)/2a), we get that x= 31^(1/2)-5 or 31^(1/2)+5
4 0
3 years ago
Module 04.03 Exponential Functions and Models: Essential Questions:
azamat
1. Exponents are the repeated multiplication of a number. It is represented by the formula of a^n where a is the number to be repeated and n is the number of times the number is being multiplies by itself. Also include the sign of the number, no matter how it is multiplied, it is still important. For instance you have 4(4), you have 4 as the repeated number. You can see that it is multiplied by itself by two times. So you have (-4)^2.

2. Graphs and tables are the key features in finding a model between two quantities. If he data values, after plotting it into a graph, produces a straight line, then you will have a direct relationship between the two and sometimes you can get an equation of the line. Sometimes it will give you a curved line. That is why it is important to graph the values of the table to better understand the relationship between two variables.

4 0
3 years ago
Other questions:
  • Find the area of a 7-gon with side length 10. Round to a whole number.
    15·1 answer
  • the circumference of the cylinder is 4cm snf the height 9 cm. What is the curved surface area of the cylinder?
    14·1 answer
  • rudy will buy 3 ivory silk lilac trees or 2 bur oak trees he wants to buy the trees that cost less wgat trees will hey buy how m
    7·2 answers
  • An LCD TV costs $459.95. What will the total cost be with 8.25% sales tax? (You must round to the nearest cent.
    12·1 answer
  • PLEASE HELP https://brainly.com/question/19115517
    7·2 answers
  • 2. Mrs. Robert’s class went to the zoo for a field trip. The bus driver drove 256 miles in 4 hours. What was the driver’s averag
    9·2 answers
  • I am in sixth and i have final exams can u pls help me out? question: what is 7000 divided by 95? pls help meh
    14·2 answers
  • And the inverse of f(x) = 3x²-5x+7 <br>​
    8·1 answer
  • A 20% coupon for a $30 item makes the cost $6
    5·2 answers
  • Pleas I really need help with this all I need is the answer
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!