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8_murik_8 [283]
3 years ago
11

★PLEASE HELP★

Mathematics
1 answer:
sattari [20]3 years ago
7 0

$1.44 is the answer because

20% of 1.80 is 0.36

1.80 - 0.36 = 1.44

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Y=1/4x interpret the slope
VLD [36.1K]

Answer:

Step-by-step explanation:

well you start at origin 0 because there is no y-intercept so you would do rise over run up 1 over 4, 1/4 is your slope

5 0
3 years ago
How many significant numbers are in 343?
Alona [7]

Answer:

there are 3.

Step-by-step explanation:

3, 4 and 3 are all significant numbers

4 0
3 years ago
The axis of symmetry for the function f(x) = –2x2 + 4x + 1 is the line x = 1. Where is the vertex of the function located?
egoroff_w [7]

Answer:

(1, 3)

Step-by-step explanation:

You are given the h coordinate of the vertex as 1, but in order to find the k coordinate, you have to complete the square on the parabola.  The first few steps are as follows.  Set the parabola equal to 0 so you can solve for the vertex.  Separate the x terms from the constant by moving the constant to the other side of the equals sign.  The coefficient HAS to be a +1 (ours is a -2 so we have to factor it out).  Let's start there.  The first 2 steps result in this polynomial:

-2x^2+4x=-1.  Now we factor out the -2:

-2(x^2-2x)=-1.  Now we complete the square.  This process is to take half the linear term, square it, and add it to both sides.  Our linear term is 2x.  Half of 2 is 1, and 1 squared is 1.  We add 1 into the set of parenthesis.  But we actually added into the parenthesis is +1(-2).  The -2 out front is a multiplier and we cannot ignore it.  Adding in to both sides looks like this:

-2(x^2-2x+1)=-1-2.  Simplifying gives us this:

-2(x^2-2x+1)=-3

On the left we have created a perfect square binomial which reflects the h coordinate of the vertex.  Stating this binomial and moving the -3 over by addition and setting the polynomial equal to y:

-2(x-1)^2+3=y

From this form,

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

you can determine the coordinates of the vertex to be (1, 3)

5 0
3 years ago
Read 2 more answers
How would I solve I need to know Asap and what is the answer
Elanso [62]

Answer:

A) 5

Step-by-step explanation:

distance = √(distance between x coordinates² + distance between y coordinates²)

the horizontal distance between the two points is 4

the vertical distance between the two points is 3

to prove this, if you started at Q and went 4 points right and then 3 points up, you would get to P

distance = √(4²+3²) = √25 = 5

8 0
2 years ago
Evaluate the exponent<br> (14.7 + 9.3) * (1/2) to the second power
grigory [225]

Answer: well the thing is 12, i have no idea how to do it though. sorry

Step-by-step explanation:

8 0
3 years ago
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