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kifflom [539]
3 years ago
18

Which graph represents a reflection of f(x) = 2(0.4)x across the y-axis? On a coordinate plane, an exponential function approach

es y = 0 in quadrant 2 and increases into quadrant 1. It crosses the y-axis at (0, 2) and goes through (1, 5). On a coordinate plane, an exponential function decreases from quadrant 3 to quadrant 4 and approaches y = 0 in quadrant 3. It crosses the y-axis at (0, negative 2) and goes through (1, negative 5). On a coordinate plane, an exponential function decreases from quadrant 2 to quadrant 1 and approaches y = 0 in the first quadrant. It goes through the y-axis at (0, 2) and goes through (negative 1, 5). On a coordinate plane, an exponential function increases from quadrant 3 to quadrant 4 and approaches y = 0. It goes through (negative 1, negative 5) and crosses the y-axis at (0, negative 2).
Mathematics
2 answers:
kondaur [170]3 years ago
8 0

Answer:

B

Step-by-step explanation:

ed2021 :)

Leona [35]3 years ago
5 0

Answer:B

Step-by-step explanation:

Just got it right

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Otrada [13]

Answer:

+30 +-25

Savings is positive

Buying is negative

Step-by-step explanation:

+30 saved

-25 to buy

+30 +-25

Savings is positive

Buying is negative

6 0
3 years ago
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PLEASE SHOW FULL SOLUTIONS!!! WILL MARK BRAINLIEST FOR BEST ANSWER!!
kirill [66]

Answer:

  • We would use the explicit formula

Step-by-step explanation:

<u>The recursive formula is good to find the next term, example:</u>

  • a₁ = 20
  • aₙ = aₙ₋₁ + 10

<u>You would need the explicit formula to find any term, example:</u>

  • aₙ = 20 + 10(n - 1)
4 0
3 years ago
The sum of the lengths of any two sides of a triangle must be greater than the third side. If a triangle has one side that is 18
kogti [31]

Answer: One side could be 18 and the other side will be 33.

Step-by-step explanation:

  • Side #1 = 18
  • Side #2 = 2x - 3
  • Side #3 = x

<u>One way of setting up the inequality is: Side #2 + Side #3 > Side #1</u>

<u />2x-3+x>18\\3x-3>18\\3x>18+3\\3x>21\\x>7

<u>Another way of setting up the inequality is: Side #1 + Side #3 > Side #2</u>

<u />18+x>2x-3\\18+3>2x-x\\x<u />

<u>Final way of setting up the inequality is: Side #1 + Side #2 > Side #3</u>

<u />18+2x-3>x\\15>x-2x\\15>-x\\x>-15<em />

<em>Therefore, we have the range for our value of x, which is between 7 and 21. Any possible value between works. Negative measurements are rejected. One of the sides would equal the x-value, while the other side would equal the value of 2x-3.</em>

3 0
3 years ago
The function h(x) = x2 + 4x − 11 represents a parabola.
Vitek1552 [10]
A.
 = (x + 2)^2 - 4 - 11
= (x + 2)^2 - 15

B.   vertex  is at ( -2, -15) which is a minimum because the coefficient of x^2 is positive.

C.   The axis of symmetry is a vertical line passing through the vertex It is 
x = -2.
6 0
3 years ago
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The following statements concern the modulus. Which statement is false?
Gelneren [198K]

we will check each options

option-A:

The modulus represents the distance between the complex number and the origin

we know that modulus is a kind of distance

For example: if we have to find modulus of x+iy

we get

|z|=\sqrt{x^2+y^2}

that is also distance between (0,0) and (x,y)

so, this is TRUE

option-B:

|z|=\sqrt{x^2+y^2}

It is also similar to Pythagoras theorem

so, this is also TRUE

option-C:

we got modulus formula

|z|=\sqrt{x^2+y^2}

we know that value of sqrt can never be negative because it will always result in positive value

so, this is FALSE

option-D:

|z|=\sqrt{x^2+y^2}

It is also similar to absolute value

so, this is TRUE

5 0
3 years ago
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