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2 years ago

How do you graph an explict equation

1 answer:

5 0

I think this might help but sorry if it does not but I hope it does :) :D - https://learnzillion.com/lesson_plans/5701-writing-an-explicit-formula-for-the-graph-of-an-exponential-relationship/

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A music website charges x dollars for individual songs and y dollars for entire albums. Person A pays $25.92 to download 6 indiv

kati45 [8]

Amount charged for downloading individual songs = x dollars
Amount charged for downloading an entire album = y dollars
In respect to person A:
6x + 2y = 25.92
3x + y = 12.96
y = 12.96 - 3x
In respect to person B:
4x + 3y = 33.93
Putting the value of y from the first equation in the second, we get
4x + 3(12.96 - 3x) = 33.93
4x + 38.88 - 9x = 33.93
- 5x = - 4.95
x = 0.99 dollars
Putting the value of x in the first equation, we get
y = 12.96 - 3x
= 12.96 - 2.97
= 9.99 dollars

7 0

3 years ago

I will give brainliest! Which number has a 3 with a value that is 100 times greater than the values of the 3 in 20.342?

elena-s [515]

Answer:

36.25 and 307.18

Step-by-step explanation:

both are 100 times greater than 20.342.

7 0

3 years ago

Read 2 more answers

the Gateway Arch in St. Luis, Missouri, weighs about 20,000 tons. Write an amount that could be the exact number of tons the Arc

alexandr402 [8]

19675 tons
possible answer

8 0

3 years ago

Solve x^2=2x+3 by factoring

solong [7]

The solution is x = 1 and x = -3

Solution:

Given that we have to solve the given equation by factoring

Given equation is:

$x^2=2x + 3\\\\x^2 - 2x - 3 = 0$

$\text{Consider the form } x^2+bx+c$

Find a pair of integers whose product is c and and whose sum is b

$\text{Compare } x^2-2x-3 = 0 \text{ with } x^2+bx +c\\\\\text{We get } b = -2 \text{ and } c = -3$

Now find, a pair of integers whose sum is -2 and product is -3

The integers that satisfies this condition is -1 and 3

When we add - 1 and 3 we get 2

When multiply -1 and 3 we get -3

Thus the pair of integers are -1 and 3

Write the factored form using these integers.

$(x-1)(x+3) = 0$

The Zero Product Property states that if ab = 0, then either a = 0 or b = 0, or both a and b are 0

Set the factors equal to 0

$x - 1 = 0 \text{ and } x + 3 = 0$

x = 1 and x = -3

Thus the solution is x = 1 and x = -3

4 0

2 years ago

the mantle layer of earth begins about 70 kilometers underneath the surface. The layer called the outer core begins about 2970 k

gavmur [86]

Given:
mantle layer of earth begins about 70 kilometers underneath the surface
outer core begins about 2970 kilometers underneath the surface

Since we need to find the position of each layer relative to the surface, the surface will serve as the point of origin or 0. Below the surface infers a negative value. So, Mantle layer is -70 km from the surface while outer core is -2970 km under the surface.

Comparing -70 and -2970, -70 has a greater value than -2970. The nearer the number is to the origin or 0, the higher its value.

Comparing the absolute greater value of -70 and -2970, -2970 has a greater absolute value. This is because absolute value is the positive value of the number. Absolute value of -70 is 70 while absolute value of -2970 is 2970. Thus, -2970 has a greater absolute value.

6 0

3 years ago