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3 years ago

The graph shows two lines, A and B.

Mathematics

2 answers:

muminat3 years ago

7 0

Ur 1 solution is where the lines intersect, which is (1,4)

irga5000 [103]3 years ago

5 0

For the system of equations between the two lines, there is only one solution as you can see from the graph.

The point of intersection of the lines is the solution, the intersection point is at:

x = 1, and y =4

(1 , 4).

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Which coordinates will best represent point A'?

baherus [9]

Answer: OPTION A.

Step-by-step explanation:

You know that the rule that will be used for the translation of the figure ABC is:

$(x,y)$ → $(x-3,\ y+4)$

You can observe in the figure that the coordinates of the point A is this:

$A(1,1)$

Then, in order to find the coordinates that will best represent point A', you need to subtract 3 from the x-coordinate of the point A and add 4 to the y-coordinate of the point A:

$A'(1-3,\ 1+4)\\\\A'(-2,5)$

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3 years ago

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NO LINKS OR ELSE YOU'LL BE REPORTED!Only answer if you're very good at Math.

andreev551 [17]

Answer:

$D.\ y = 3\sin(2(x + \frac{\pi}{4}))$

Step-by-step explanation:

Given

$A = 3$ --- Amplitude

$C = \frac{\pi}{4}$ --- Right phase shift

Required

Identify the function

A sinusoidal function is defined as:

$y = A\sin(B(x + C)) + D$

Substitute values for A and C

$y = 3\sin(B(x + \frac{\pi}{4})) + D$

By comparison, only option (D) has the above format where

$y = 3\sin(2(x + \frac{\pi}{4}))$

Hence (D) is correct

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3 years ago

So Alex is selling a very rare spice that costs $100 per gram. Someone wants to buy $80 worth of the spice. How much spice (in g

Alika [10]

80% of a gram.
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3 years ago

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Zolol [24]

Answer:

Step-by-step explanation:

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2 years ago

What value of b makes the trinomial below a perfect square x^2-bx+100

Aloiza [94]

1. Perfect square trinomials, are 2nd degree polynomials, of the form $a x^{2} +bx+c$ so that $a \neq 0, b \neq 0, c \neq 0$ , which can be written as perfect squares.

2. For example $(x+1) ^{2} = x^{2} +2x+1
 
(3x-1)^{2}= (3x)^{2}-2(3x)+(-1) ^{2}= 9x^{2}-6x+1 
$

3. Thus $x^{2} +2x+1, 9x^{2}-6x+1$ are perfect square trinomials.

4. $x^{2} -bx+100= x^{2} -bx+ 10^{2}= (x+10)^{2} or (x-10)^{2}$

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.

6. b∈{-20, 20}

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3 years ago