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Anon25 [30]
3 years ago
9

Please help I will give 10 pt

Mathematics
2 answers:
Mrac [35]3 years ago
4 0

The expressions 100×10 and the more complicated

(100 - 4a)(10 + a)

are calculating annual (expected) revenue.  In 100×10 the 100 is the number of decks and the 10 is the price per deck.  In (100 - 4a)(10 + a) the 100-4a is the number of decks and the 10+a is the price per deck.  So a must be the amount the price increases.

Answer: amount of price increase, last choice

Anestetic [448]3 years ago
4 0

Answer:

yes

Step-by-step explanation:

yes big sally

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Simplify (write without the absolute value sign): <br><br> |x÷3|, if x &lt; 0
polet [3.4K]

Answer:

0

Step-by-step explanation:

zero divided by anything that is integral is zero and 3 in a integer

0

7 0
3 years ago
Read 2 more answers
I have these factoring questions I need help with.
snow_lady [41]

f(x)=4x^2+4x-3

1. Determine y-intercept.

<em>The y-intercept is (0,-3). Substitute x = 0 in the equation as we get f(x) = -3 as the y-intercept.</em>

2. Determine the zeros.

<em>Factor the polynomials first. </em>(2x-1)(2x+3) <em>This is the factored form. The zeros are the roots of equation. Therefore, the zeros are 1/2 and -3/2</em>

3. Determine the Axis of Symmetry

<em>We can solve this by using the formula of </em>x=-\frac{b}{2a}  <em>However, I'll be solving the Axis of Symmetry with Calculus instead.</em>

<em />f'(x)=2(4x^{2-1})+1(4x^{1-1})-0\\f'(x)=8x+4<em />

<em>Then let f'(x) = 0 to find the Axis of Symmetry.</em>

<em />8x+4=0\\8x=-4\\x=-\frac{4}{8}\\x=-\frac{1}{2}<em />

<em>Therefore, the Axis of Symmetry is -1/2</em>

4. Determine the vertex.

<em>Substitute the value of Axis of Symmetry in f(x).</em>

<em />f(x)=4(-\frac{1}{2})^2+4(-\frac{1}{2})-3\\f(x)=4(\frac{1}{4})-2-3\\f(x)=1-2-3\\f(x)=-4<em />

<em>Therefore the vertex is at (-1/2, -4)</em>

5. Does the vertex representing max-pont or min-point?

<em>The vertex represents the minimum point. The graph is upward, meaning the minimum point is the point that gives the LOWEST Y-VALUE. </em>

7. Graph f(x)

<em>Unfortunately I won't be able to graph. But I can tell you to graph a parabola that has the most curve at the vertex and intercepts y-axis at (0,-3).</em>

<em>--------------------------- </em>End of Part 1 --------------------------------

2. Write the general form of Quadratic Function in standard form.

y=ax^2+bx+c

<em>The graph can be easily determined about the y-intercept and being an upward or downward parabola along with how narrow or wide the parabola is. </em>

<em>For example, c value is the y-intercept as defined. When a > 0, the parabola is upward and when a < 0, the parabola is downward. The more value of | a | is, the more narrow it will be and the less value of | a | it is, the wider it will be.</em>

3. Write in Factored Form

y=(x+a)(x+b)\\y=(x-a)(x-b)\\y=(x+a)(x-b)\\y=(x-a)(x+b)

<em>These are factored forms with different types of operators.</em>

<em>The equation can be easily determined about the roots of equation. For example, if the function is in f(x) = (x+2)(x-1) Then the roots would be x = -2 and 1 as the graph will intercept x-axis at (-2,0) and (1,0)</em>

4. Write in Vertex Form.

y=a(x-h)^2+k

<em>The equation can be easily determined for the vertex, axis of symmetry and the same narrow/wide/upward/downward parabola again.</em>

<em>The vertex is at (h,k) and the axis of symmetry is at x = h.</em>

<em>For example, </em>y=(x-2)^2+3<em />

<em>The vertex would be at (2,3) and the axis of symmetry is x = 2.</em>

3 0
3 years ago
The average length of an adult eastern coach whip snake is 152.4 centimeters write a sentence comparing its length to the other
crimeas [40]

Answer:

The eastern coach whip snake is:

i. 88.9 cm longer than the Copperhead snake

ii. 88.9 cm longer than the Western cottonmouth snake

iii. 30.8 cm longer than the Timber rattlesnake

iv. 91.4 cm longer than the Queen snake

Step-by-step explanation:

The average length of the adult eastern coach whip snake is 152.4 centimeters.

The length of the Copperhead snake is 63.5 centimeters

The difference between 152.4 and 63.5 is 152.4-63.5=88.9

Therefore the eastern coach whip snake is 88.9 cm longer than the Copperhead snake

The Western cottonmouth is 63.5 cm just the same length as the copperhead snake.

Hence, the eastern coach whip snake is also 88.9 cm longer than the Western cottonmouth snake

The Timber rattlesnake is 121.6 cm long. Since 152.4-121.6=30.8,  the eastern coach whip snake is 30.8 cm longer than the Timber rattlesnake

Also, 154.2-61=91.4

Therefore  the eastern coach whip snake is 91.4 cm longer than the Queen snake.

6 0
3 years ago
Let f= {(-5,1).( - 4,0).(0,6)}<br> Find f(0)<br> f(0)=
sweet [91]

<u>Given</u>:

It is given that the coordinates of the function are f=\{(-5,1),(-4,0),(0,6)\}

We need to determine the value of f(0)

<u>Value of f(0):</u>

The value of f(0) is the value of the function when the input is 0.

We need to determine the value of f(0) when the input is x = 0

Thus, from the coordinates of the function f=\{(-5,1),(-4,0),(0,6)\}, it is obvious that the input value of the function is x = 0 , then the value of the function f(0) = 6.

Thus, when the input value x = 0, the output is f(0) = 6.

Therefore, the value of f(0) = 6.

5 0
3 years ago
Which linear inequality is represented by the graph?
Mandarinka [93]
The answer should be C
3 0
3 years ago
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