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
iogann1982 [59]
3 years ago
8

Will someone PLEASE check my answers asap?? will mark a brainliest!!

Mathematics
2 answers:
Vesna [10]3 years ago
8 0

All of your answers are correct, except the last one.

The last one is a system of linear equations that you can solve by using elimination:

x - y = -3

x + 3y = 5

Subtract the two equations:

-4y = -8

y = 2

Use y to solve for x:

x - (2) = -3

Add 2 to both sides:

x = -1

The answer for #4 is x = -1.

kotegsom [21]3 years ago
3 0

Answer:

1) 3

2) B

3) B

4) x=-1

Step-by-step explanation:

1) The graph of f(x) = (0.5)^x is replaced by the graph of g(x) = (0.5)^x-k. If g(x) is obtained by shifting f(x) down by 3 units, the value of k is 3.

2) Consider the function f(x)=4(7)^{2x}. Note that 7^{2x}=(7^2)^x=49^x. Then

f(x)=4\cdot 49^x.

3) The y-intercept of f(x) is point (0,-6), because f(0)=-6\cdot (1.02)^0=-6. The y-intercept of g(x) is point (0,-3). Then the y-intercept of f(x) is equal to 2 times the y-intercept of g(x).

4) From the first equation x=y-3. Substitute it into the second equation:

y-3+3y=5,\\ \\y+3y=5+3,\\ \\4y=8,\\ \\y=2.

Then x=2-3=-1.


You might be interested in
Samuel wants to buy cookies for his friend. The diameter of a cookie is 20 inches. What is the cookies area? Round to the neares
olya-2409 [2.1K]

Answer:

314.16

Step-by-step explanation:

Area=πr2

d=2r

Solving for Area

A=1

4πd2=1

4·π·202≈314.15927

7 0
2 years ago
How to prove all pairs of corresponding sides and angles are congruent
Lera25 [3.4K]
The lines on the triangles
5 0
3 years ago
What is the ratio of 65*3^17 to 65*3^14
solniwko [45]
<span>The ratio of 65*3^17 to 65*3^14 can be found as follows:

(65) (3^17)      65
--------------- = ----- * 3^(17-14) = 1 * 3^3 = 27 (answer)
(65) (3^14)      65</span>
3 0
3 years ago
Read 2 more answers
Which number is NOT in the solution set of the inequality x &lt; 15?
Mrrafil [7]

Answer: it is 15

Step-by-step explanation:

4 0
3 years ago
Find the interest earned and the future value of an annuity with quarterly payments of $600 for 8 years into an account that pay
iVinArrow [24]

Answer:

interest earned= 292.878

the future value of an annuity= 892.878

Step-by-step explanation:

Given Data:

Interest rate= 5%

time,t = 8 years

Quarterly payment, P= 600

n= 4 as quarterly

At the end of 8 years, final investment A= ?

As per the interest formula

A= P(1+r/n)^nt

= 600(1+0.05/4)^32

= 892.878

Interest earned = A-P

                          = 892.878-600

                          = 292.878 !

3 0
3 years ago
Other questions:
  • HELP PLEASE!!! The table gives the outside temperature in degrees Fahrenheit on a winter day in Death Valley, California..
    9·2 answers
  • Apples lose 71% of their weight while drying. How many fresh apples to you need to pick in order to get 128 lb of dried apples?
    12·1 answer
  • Use a graphing tool to solve the system. {13x+6y=−30x−2y=−4 Which ordered pair is the best estimate for the solution to the syst
    5·2 answers
  • Rita has 6 cups of frosting. She plans to use 2/3 of it to decorate cakes. How many cups of frosting will rita use to decorate c
    5·1 answer
  • What is 0.0000234 in scientific notation
    6·1 answer
  • What is the y coordinate of the solution to the system of equations? 3x+6y=3 5x-y=27
    10·1 answer
  • Which system is represented by the graph?
    13·1 answer
  • Suppose that x ∗ is an optimal basic feasible solution, and consider an optimal basis associated with x ∗ . Let B and N be the s
    11·1 answer
  • Tìm x biết rằng 2x - 4 = 5
    11·2 answers
  • Discrete Math please help
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!