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3 years ago

Determine the function

Mathematics

1 answer:

zalisa [80]3 years ago

5 0

For each increment in x, the output is multiplied by 2. The function could be written the way a geometric sequence can be written:

... f(x) = 5·2^(x-1)

Or, it could be simplified to ...

... f(x) = (5/2)·2^x

The first 5 terms will be

... 5, 10, 20, 40, 80

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(8.11×107)–(4.3×107)

Ivanshal [37]

Answer: 407.67

Explanation:

(8.11×107)–(4.3×107) =

(8.11)(107)−(4.3)(107) =

407.67

5 0

3 years ago

WILL GIVE 40 BRAINLY

irina [24]

Answer:

$(3,2)$

Step-by-step explanation:

The method of variable substitution is a way of solving a system of equations. It involves solving one equation for a variable and then substituting in the expression that represents the value of the solved variable into the other equation. After doing so, one can solve for the unknown variable and then backsolve for the other variable.

$y=-2x+8\\y=x-1$

In this system, the second equation is already solved for (y), thus one can substitute that expression into the other equation in the system.

$x-1 = -2x + 8$

Now solve using inverse operations,

$x -1 = -2x + 8\\+2x\\\\3x - 1 = 8\\+1\\\\3x =9\\/3\\\\x = 3$

Backsolve to find the value of (y), substitute in the value of (x), and solve for the value of (y).

$y=x - 1\\$

Substitute,

$y=(3)-1$

Solve,

$y=2$

Thus, the answer to this system of equations is the following, $(3,2)$ .

8 0

3 years ago

Celina and Zoe both sing in a band.

coldgirl [10]

Step-by-step explanation:

65% of 80= 80×0.65 = 52mins

5/8 of 80= 5/8×80 = 50 mins

5 0

3 years ago

A room has a rectangular floor that is 15 feet by 21 feet. What is the area of the floor in square yards ?

Soloha48 [4]

Answer:

Hey There!

Let's solve...

Here it is a rectangular floor with length =21 cm and width =15cm

$area = l \times w \\ = 21 \times 15 \\ = 315 {ft}^{2} \\ \\$

So now We need to convert it to yards square

$315ft^{2} \times \frac{ {1yd}^{2} }{ {9ft}^{2} } \\ \\ = \cancel{315ft^{2}} \: ^{35} \times \frac{ {1yd}^{2} }{ \cancel{9 {ft}^{2} }} \\ \\ = 35 {yd}^{2}$

So how this 9 ft^2 came??

Let's know

$ft \to \: yards \\ \\ 3ft = 1yd \\ \\ {3ft}^{2} = {1yd}^{2} \\ \\ \boxed{ {9ft}^{2} = {1yd}^{2}}$

<h2>I hope it is helpful to you...</h2><h3>Cheers!_______</h3>

8 0

2 years ago

Read 2 more answers

To convert a capacity of 8.7 gallons to quarts which ratio could you multiply by

guajiro [1.7K]

A- 4 quarts over 8.7 gallon

B- 1 gallon over 4 quarts

C- 8.7 gallons over 4 quarts

D- 4 quarts over 1 gallonUpdate: Remember that 1 gallon = 4 quarts

6 0

2 years ago