All categories

3 years ago

LAST QUESTION HELP A GIRL OUT

Mathematics

1 answer:

uysha [10]3 years ago

4 0

Using the given points, you can write the equation as ...
$y=7.5\left(\dfrac{16.875}{7.5}\right)^{\frac{x-1}{3-1}}=7.5\cdot (2.25^{\frac{1}{2}})^{x-1}\\=7.5\cdot 1.5^{x-1}=7.5\cdot 1.5^{-1}\cdot 1.5^{x}\\y=5\times 1.5^{x}$

You might be interested in

Determine the x-intercept for 3x + 2y = 14.

spin [16.1K]

First isolate y

3x + 2y = 14

-3x -3x

2y = -3x + 14

y = -3/2x + 14/2

y = -3/2x + 7

X-intercept is found when y = 0

0 = -3/2x + 7

-7 = -3/2x

x = 14/3

x-in. = (14/3,0)

3 0

2 years ago

Evaluate the following expression when x = 1/2 and y = -3.<br><br><br> -4xy

solong [7]

Answer:6

Step-by-step explanation:

-4xy

-4(1/2)(-3)

-4(-1.5)

3 0

2 years ago

How to find a slope of (-3,-3) and (5,9)

Rzqust [24]

Answer: m= 3/2

Step-by-step explanation:

Because....

if you use the slope formula y2-y1/y2-y1 .

It's going to be....

$m=\frac{9-(-3)}{5-(-3)}$

Therefor, the answer is m = $\frac{3}{2}$

* Hopefully this helps:) Mark me the brainliest:)!!!

8 0

3 years ago

Write an equation of the line that passes through the point (5,-4) and has a slope of 2.

Romashka-Z-Leto [24]

Answer:

Point slope formula: (y + 4) = 2(x - 5)

Slope intercept formula: y = 2x - 14

Step-by-step explanation:

Point slope formula: (y + 4) = 2(x - 5)

Slope intercept formula: y = 2x + b, -4 = 10 + b, b = -14

y = 2x - 14

6 0

3 years ago

Prove: The difference of the reciprocals

murzikaleks [220]

Step-by-step explanation:

let two successive integers n, n+1

difference of the reciprocals:

$\frac{1}{n}-\frac{1}{n+1} \\=\frac{(n+1)-n}{(n)(n+1)}\\=\frac{1}{(n)(n+1)}\\=\frac{1}{(n)}\frac{1}{(n+1)}\\$

7 0

2 years ago