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
Sergeu [11.5K]
4 years ago
15

write the equation for an exponential function, in the form y=a*b^x, whose graph passes through the cord points (1,7.5) and (3,

16.875)
Mathematics
1 answer:
Vlad [161]4 years ago
3 0
Use the given two points to find a and b
when x=1, y=7.5, so a*b=7.5
when x=3, y=16.875, so a*b³=16.875
divide ab³ by ab to eliminate a: b²=16.875/7.5=2.25, b=1.5
a=7.5/1.5=5
You might be interested in
Last year Mr. Ingles total income was 52000+ total expenses were 53800 use expression I-E/12 where I represents total income in
Olegator [25]

Answer:

-$150

Step-by-step explanation:

Given:

(I - E) / 12

Where,

I = total income

E = total expenses

I = $52,000

E = $53,800

(I - E) / 12

= (52,000 - 53,800) / 12

= -1,800 / 12

= -150

-$150 shows that Mr. Engle's total expenses exceeds his total income per month with an average of $150

8 0
3 years ago
16. Mum went shopping at the vegetable stand.
kondaur [170]

Good evening

Answer:

<em>a) the cost of one apple is €</em><em>0.9</em>

<em>b) the cost of one pineapple is €</em><em>5.4</em>

<em>c) the cost of two pineapples and six apples is €</em><em>16.2</em>

Step-by-step explanation:

Consider P the price of a pineapple

               A the price of an apple

A pineapple costs six times as much as an apple means P = 6A

Mum paid €7.20 for one pineapple and two apples means P + 2A = 7.20

then

6A + 2A = 7.20

then

8A = 7.20

then

A = €0.9  

Since P = 6A then P = 6×(0.9) = €5.4

the cost of two pineapples and six apples

= 2P + 6A

= 2P + P

= 3P

= 3×(5.4)

= €16.2

     

7 0
4 years ago
Using the horizontal line test, which of the following can be concluded about
Helen [10]

Step-by-step answer:

A vertical line test checks for single or multiple intersections with a given relations  If there is a maximum of one intersection with the relation at ANY point in the domain of the relation, we can conclude that the relation is a function.  If there are multiple intersections of a VERTICAL line with the function, it is not a function.

Here, we see that vertical line test on the relation shown does not produce more than one intersection at any point in the domain of the relation, hence we conclude that the graph shows a function.

An inverse of a function is a reflection of the function about the y=x line.  The result is the same as the interchange of the x and y-axes.

Hence a horizontal line test on the inverse of a function gives the same results as a vertical line test of the function itself, and the conclusion is identical to the test given above in paragraph two.

3 0
3 years ago
An internet service provider charges $20 per month plus an initial set-up fee. One customer paid a total of $92 after 2 months o
Elina [12.6K]

Answer:

x+20 +20=92

Step-by-step explanation:

8 0
3 years ago
Sam sold a car for 5299.00 his commission of 31% of the sale. What is his commission
Ierofanga [76]

Answer:

His commission is 1642.69

Step-by-step explanation:

31/100=x/5299

Cross multiply

164,264/100=100x/100

1642.69=x

7 0
3 years ago
Other questions:
  • Math please help! Solve for x.
    15·1 answer
  • Math Help Please and Thank ya!
    7·1 answer
  • In a study of chain saw injuries, 57 percent involved arms or hands. If three different chain saw injury cases are randomly sele
    8·1 answer
  • 5. How many solutions will the following system of equations have?<br> y = -x +4<br> x² + y² = 16
    9·1 answer
  • in the given figure the side BC is extended to D.IF BE is the bisectorof angle ABC and CE is the bisector of angle ACD THEN PROV
    12·1 answer
  • When i was 4 my sister was 2 now if i am 100 how old is my sister
    7·1 answer
  • John has $80. Every week, he spends $7. Create an equation that represents how much money, m , he has after t weeks
    15·1 answer
  • Determine the x-intercept, y-intercept and slope of the line described by - 3x + 7y = –21 (Which is not proper Standard Form bec
    9·1 answer
  • X + 318 = 718 x = x – 212 = 634 x =<br> x – 3.23 = 0.77 x =
    5·1 answer
  • Step by step explanation pls (30 points!)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!