All categories

3 years ago

How do you solve the function y = 2.5^x for y=20

1 answer:

6 0

$y=2.5^x;\ y=20\\\\2.5^x=20\\\\log_{2.5}2.5^x=log_{2.5}20\\\\x=log_{2.5}20\\\\x=log_{2.5}(2.5\cdot8)\\\\x=log_{2.5}2.5}+log_{2.5}8\\\\x=1+log_{2.5}8$

You might be interested in

Each month, a shopkeeper spends 3x+2 dollars on rent and 7x+4 on electricity. Ahmed claims that the shopkeeper spent a total of

Ivenika [448]

Nope he’s not

3x + 7x = 10x
2+4= 6
So the answer is 10x + 6 not whatever Ahmed got

8 0

2 years ago

Read 2 more answers

Y = 6x − 4

Kamila [148]

Answer:

Part B: $\displaystyle [1, 2]$

Part A: Set both equation equal to each other by Substitution, since our y-values are already given to us.

Step-by-step explanation:

6x - 4 = 5x - 3

- 6x + 3 - 6x + 3

____________

$\displaystyle -1 = -x; 1 = x$

Plug this coordinate back into the above equations to get the y-coordinate of 2.

y = mx + b [where b is the y-intercept and the rate of change (slope) is represented by m]

$\displaystyle y = 5x - 3; [0, -3]; 5 = m \\ y = 6x - 4; [0, -4]; 6 = m$

I am joyous to assist you at any time.

3 0

3 years ago

If f(x) = 2x^3– 5x+ 2, then what is the remainder when f(x) is divided by X – 4?

Mashutka [201]

The remainder is 110 when $f(x) = 2x^3-5x+ 2$ is divided by x-4

Step-by-step explanation:

We need to find the remainder when $f(x) = 2x^3-5x+ 2$ is divided by x-4

Solving:

The solution is attached in the figure below.

The quotient is: $2x^2+8x+27$

The remainder is: 110

Keywords: quotient, division

Learn more about Division and quotient at:

#learnwithBrainly

5 0

3 years ago

Is there such a thing as 0x, there's 5x, 6x, 19x, x etc., but 0x... just sound weird to me.

erastovalidia [21]

Zero × anything is zero, so no... you'll never see 0x. If for some reason you do, just rewrite the equation without it... because it's zero. :)

3 0

2 years ago

Read 2 more answers

Answer this question i need help!! i’ll give brainly

frez [133]

Answer:

A. The color of fire when different metals are burned.

Explanation:

Qualitative data is data that relates to a quality or characteristic of an object, and does not include any numbers.

example: colour, taste, survey answers

Quantitative data, on the other hand, relates to measurements and counting of variables, and uses numbers to convey value.

example: height of a person, number of coins

5 0

1 year ago