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
Lorico [155]
2 years ago
7

A(x) = 7 – 4x , A(-1) =

Mathematics
2 answers:
kramer2 years ago
8 0

Answer:

<em><u>7-4*(-1)</u></em>

<em><u>7-4*(-1)7+4</u></em>

<em><u>7-4*(-1)7+411</u></em>

Step-by-step explanation:

hope it will help u

stich3 [128]2 years ago
4 0

Answer:

A(- 1) = 11

Step-by-step explanation:

Substitute x = - 1 into A(x) , that is

A(- 1) = 7 - 4(- 1) = 7 + 4 = 11

You might be interested in
4. Two savings accounts each start with a $200 principal and have an interest rate of 5%. One account earns simple interest and
slega [8]

Answer:

The compounded annually account will earn more interest over 10 years

Step-by-step explanation:

The rule of the simple interest is I = Prt, where

  • P is the original value
  • r is the rate in decimal
  • t is the time

The rule of the compounded interest is A = P(1+\frac{r}{n})^{nt}, where

  • A is the new value
  • P is the original value
  • r is the rate in decimal
  • n is the number of periods
  • t is the time

The interest I = A - P

∵ Each account start with $200

∴ P = 200

∵ They have an interest rate of 5%

∴ r = 5% = 5 ÷ 100 = 0.05

∵ One account earns simple interest and the other is compounded  

   annually

∴ n = 1 ⇒ compounded annually

∵ The time is 10 years

∴ t = 10

→ Substitute these values in the two rules above

∵ I = 200(0.05)(10)

∴ I = 100

∴ The simple interest = $100

∵ I = A - P

∵ A = 200(1+\frac{0.05}{1})^{1(10)}

∴ A = 325.7789254

∵ I = 325.7789254 - 200

∴ I = 125.7789254

∴ The compounded interest = $125.7789254

∵ The simple interest is $100

∵ The compounded interest is $125.7789254

∵ $125.7789254 > $100

∴ The compounded annually account will earn more interest

   over 10 years

6 0
3 years ago
Will mark brainliest
Sedbober [7]

Answer:

E ( 1 , -1 ) is in quadrant IV

6 0
3 years ago
You buy a storage case that holds 170 collectible die-cast cars. You have 137 die-cast cars. Write an inequality that describes
Murljashka [212]

Answer:

137 + x <= 170

Step-by-step explanation:

The following inequality will describe this scenario.

137 + x <= 170

the variable x in this scenario represents the total number of cars that you will purchase. This number is added to the number of toy cars that you already own which is 137. As long as this sum is less than or equal to 170 then your storage case will hold them.

4 0
3 years ago
This is rlly hard i need help both pls
mart [117]

Answer:

length times hight times whith

4 0
3 years ago
Read 2 more answers
Jake and Erica were solving a system of equations. They both noticed that the two lines had the same slope. Jake said that becau
cluponka [151]
The correct answer is option A. Erica is correct in saying that the two lines are not necessarily the same and we should also look at the y-intercepts before determining how many solutions there were. <span>Two lines with equal slopes could be the same line, but only if they have the same y-intercept.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Equivalent fraction of 7/21
    5·2 answers
  • What are Absolute Value Equations​
    7·1 answer
  • In a survey of 5100 randomly selected T.V. viewers, 40% said they watch network news programs. Find the margin of error for this
    14·1 answer
  • Number 8 please, I don't understand it
    7·1 answer
  • What is the lowest common multiply of 25 and 60
    7·2 answers
  • Whats longer 3 hours or 175 min.
    13·2 answers
  • Find the percent increase or decrease to the nearest percent. From 14 books to 40 books From 72 points to 50 points
    15·1 answer
  • Um- help-.. please don’t comment if you don’t know
    15·2 answers
  • Please help me with this homework
    8·1 answer
  • Given that A, O &amp; B lie on a straight line segment, evaluate obtuse ∠AOC.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!