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3 years ago

Is c^5 - 49 a difference of squares? a. yes b. no

Mathematics

1 answer:

gogolik [260]3 years ago

4 0

No. Since we cannot factor,

$c^5-49$ .

Hope this helps.

r3t40

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A rocket is launched into the air and follows the path, h (t) = -3 * t^2 + 12 * t

DanielleElmas [232]

check the picture below.

so, the rocket will come back to the ground when h(t) = 0, thus

$\bf h(t)=-3t^2+12t\implies \stackrel{h(t)}{0}=-3t^2+12t\implies 0=-3t(t-4)\\\\[-0.35em]~\dotfill\\\\0=-3t\implies 0=t\impliedby \textit{0 seconds when it took off from the ground}\\\\[-0.35em]~\dotfill\\\\0=t-4\implies 4=t\impliedby \textit{4 seconds later, it came back down}$

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4 years ago

A 14 -pound mixture of coffee that contains both decaffeinated and regular coffee costs $37. The decaffeinated coffee costs $

nikdorinn [45]

Answer:

The number of pounds of:

Decaffeinated coffee = x = 5 pounds

Regular coffee = y = 9 pounds

Step-by-step explanation:

A 14 -pound mixture of coffee that contains both decaffeinated and regular coffee costs $37. The decaffeinated coffee costs $2 per pound, and the regular coffee costs $3 per pound.

Let the number of pounds of:

Decaffeinated coffee = x

Regular coffee = y

Hence, our system of equations =

x + y = 14..... Equation

x = 14 - y

2x + 3y = 37....... Equation 2

We substitute 14 - y for x in Equation 2

= 2(14 - y) + 3y = 37

= 28 - 2y + 3y = 37

= - 2y + 3y = 37 - 28

= y = 9 pounds

Solving for x

x = 14 - y

x = 14 - 9

x = 5 pounds

Therefore,

The number of pounds of:

Decaffeinated coffee = x = 5 pounds

Regular coffee = y = 9 pounds

7 0

3 years ago

Basir buys 4 small drinks for $6 writd an equation to represent the cost c,for d small drinks

Phantasy [73]

6+6+6+6=28 so he/she spent 28 if wrong i do not understand

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3 years ago

The number line below represents which combined inequality? number line with a closed circle on negative 6 and 5 with shading in

Xelga [282]

When the circle is shaded it means that the variable is equal or greater or it equal or less

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3 years ago

Which function could be a stretch of the exponential decay function shown on the graph?

Paha777 [63]

We find that the function that could be a stretch of the <em>exponential</em> decay is $f(x) = 2\cdot \left(\frac{1}{6} \right)^{x}$ . (Correct choice: C)

<h3>What function represents a stretch of a exponential decay function?</h3>

<em>Exponential</em> functions are <em>trascedent</em> functions whose form is described below:

$y = a\cdot r^{x}$ (1)

Where:

a - Stretch factor
r - Growth rate

There are two conditions for a <em>stretch</em> factor and <em>exponential</em> decay: (i) a > 1, (ii) 0 < r < 1. Thus, we find that the function that could be a stretch of the <em>exponential</em> decay is $f(x) = 2\cdot \left(\frac{1}{6} \right)^{x}$ . (Correct choice: C)

<h3>Remark</h3>

The picture is missing and it cannot be found, but statement is still solvable as there is only one choice that responds the question.

To learn more on exponential functions: brainly.com/question/11487261

#SPJ1

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2 years ago