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
Ivanshal [37]
3 years ago
12

HELP PLEASE!

Mathematics
1 answer:
zheka24 [161]3 years ago
6 0
Answer: y = 5*(7/5)^x
Note: In decimal form, the equation is y = 5*(1.4)^x because 7/5 = 1.4

--------------------------------------------------------------------------

Explanation:

The general exponential form is y = a*b^x
Plug in the first point (x,y) = (0,5) and we can find 'a' to be...
y = a*b^x
5 = a*b^0
5 = a*1
5 = a
a = 5

Which means y = a*b^x updates to y = 5*b^x
Now plug in the other point (x,y) = (1,7) to find b
y = 5*b^x
7 = 5*b^1
7 = 5*b
b = 7/5
b = 1.4

So the equation is y = 5*(7/5)^x which is equivalent to y = 5*(1.4)^x

You might be interested in
The Grand Canyon is approximately 2^9 kilometers long. Mariner valley is a canyon on mars that is approximately 2^12 kilometers
gulaghasi [49]
2^12 - 2^9 would equal 3,584 
3 0
3 years ago
HELP ME PLZ !!!!!!!!
nekit [7.7K]

Answer:

LM=JM

Step-by-step explanation:

  • If Jk=Lk Maybe that K was not 90 This means that the triangles are not congruent
  • if it was K = 90 maybe Jk ≠ Lk and that means the two triangles are not congruent
  • if LM = GM و MK = MK It means that the two triangles are congruent
8 0
3 years ago
The weight of Jane and Jessica was in the ratio of 8 : 9. Jane gained 2 kg while Jessica lost 4 kg. They then had the same weigh
postnew [5]

Answer:

  48 kg

Step-by-step explanation:

The given relations can be used to write a system of equations for the two weights. Those can be solved to find Jane's weight.

__

<h3>setup</h3>

Let x and y represent Jane's and Jessica's original weight, respectively. The ratio of weights was ...

  x/y = 8/9

After the changes in weight, they were equal:

  x+2 = y-4

__

<h3>solution</h3>

Adding 4 to the second equation, we have an expression for y that can be substituted into the first equation.

  y = x +6 . . . . . . . . . . solve the second equation for y

  x/(x+6) = 8/9 . . . . . . substitute for y in the first equation

  9x = 8(x +6) . . . . . . . multiply by 9(x+6)

  x = 48 . . . . . . . . . . . simplify and subtract 8x

Jane weighed 48 kg at first.

_____

<em>Alternate solution</em>

The original difference in "ratio units" was 9-8 = 1 ratio unit. We find that this corresponds to 6 kg after the weight changes make the weights equal. Then 8 ratio units will be 8(6 kg) = 48 kg—Jane's original weight.

(This mental solution is virtually the same as the solution using equations shown above.)

3 0
1 year ago
the temperature in winter night was -23 degrees Fahrenheit the temperature Rose by 5° when the sun rose when the sunset again th
expeople1 [14]

So we have -23 degrees to start

Then add 5 to it

It becomes -23+5=-18

Now subtract 7 from that so -18-7=-25 degrees

Hope this helps

8 0
3 years ago
The process of selecting elements from a population, collecting data from them, and using it as representative of all those a re
IrinaVladis [17]

Answer:

Step-by-step explanation:

i don't know sorry

5 0
3 years ago
Other questions:
  • A baker decorates 42 cupcakes in 30 minutes. She decorates cupcakes at a constant rate.
    15·2 answers
  • F (x) = -9 (1/3) ^x + 3 what is the y intercept for f(x)?
    11·1 answer
  • What is the Expanded form of 17,390
    14·2 answers
  • Can anyone double check this precalculus question? Will mark brainliest
    5·1 answer
  • 7 см, 4 см, 10 см өлшемді тік бұрышты параллелепипедтің толық бетінің (жазбасының) ауданын тап​
    12·1 answer
  • A dealer sells a carpet that measures 6 by 5 feet. A buyer requests that a similar carpet be sold to him that is related by a sc
    5·1 answer
  • What does g3/10 represent?
    15·1 answer
  • Does the graph represent a function? yes or no lol pls help
    6·1 answer
  • WILL GIVE BRAINIEST IF CORRECT ANSWER!!!! I need the answer quickly plz I don't need an explanation!
    10·1 answer
  • How many solutions does this system of equations have?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!