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Ratling [72]
3 years ago
11

What numbers have the absolute value of 2 1/2

Mathematics
1 answer:
vredina [299]3 years ago
3 0
2 1/2 is not a number so we would have to turn it into one.

Divide 1/2
1/2 = .5
The answer would be 2.5
 
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What is the value of x to the nearest tenth? <br> x=2.1<br> x=3.4<br> x=9.6<br> x=13.1
dusya [7]
X /11.2 = 5.4 / 6.3 = 6/7

x = (6 * 11.2) / 7 = 9.6   answer
5 0
4 years ago
there are 30000 lioms in africa. the number of lions in africa decreases exponentially by 2% each year. Find the number of lion
viktelen [127]
30,000-100%

2%(6)=12%

30,000/100(12)=3600

30,000-3600=26400 lion in Africa after 6 years
3 0
3 years ago
Mathieu is finding the x-intercepts of the function f(x)=x^2+4x+3. His world is shown below. (In the photo) The Answer is: (He s
navik [9.2K]

Answer:

X intercepts are points where a function intersects or cuts through the x axis where y=0.

Step-by-step explanation:

In the function given which is f(x) =x^2 +4x + 3 we see that this is a parabola of which when the graph is drawn it has a U shape so when finding x intercepts of this function it is those points on the function where the graph cuts the x axis and at those two points f(x)= 0, so here Mathieu had made a mistake of factorizing and equating the x intercepts for this function.

For finding the X intercepts let f(x) = 0

therefore 0= x^2 + 4x + 3  now we solve for x

0= (x+1)(x+3)  

(x+1)= 0 or (x+3)=0

therefore x=-1 or x=-3

now if you substitute these values onto the function they give f(x)= 0,

f(-1) = (-1)^2 + 4(-1) + 3 = 0

f(-3) = (-3)^2 + $(-3) + 3 =0

now let us look at Mathieus answer which is x+1 = x+3 yes these x values do give the same y value but they are not equal because if you can actually solve this further you would not get a defined answer. Both these are factors of the function but are not actually equal as the function would not be able to be drawn if this was the case.

3 0
3 years ago
Read 2 more answers
Need help with this math don’t understand
slava [35]

Answer:

A

Step-by-step explanation:

The formula for flipping smth over the x axis is(x,y)→(x,−y)

just flip the symbol on the second #

your points are:

(-4,-2)→(-4,2)

(0,-4)→(0,4)

(-4,-5)→(-4,5)

Once you graph it, youll see that the shapes are congruent, just flipped, therefore the answer is A

3 0
3 years ago
the equation of line AB is y = -1/4 x - 2. write an equation of a line parallel to line AB in slope intercept form that contains
NikAS [45]
The general equation of a straight line is in the form of;
Y=MX + c,
Where m is the gradient and
C the y-intersept.
Parallel line have the same gradient.
From the equation,
Y=-1/4X - 2,
Gradient = - 1/4.

Now assuming that the second line passes through (x,y) and (-3,2).
(Y-2)/(X--3) =-1/4
4(Y-2)=-1(X+3)
4Y-8 = -X-3
4Y = -X -3+8
4Y = -X +5
Y = -1/4X +5/4
8 0
3 years ago
Read 2 more answers
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