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Ronch [10]
3 years ago
13

Write each missing number 7+2=2+

Mathematics
2 answers:
Firdavs [7]3 years ago
5 0
7+2=2+6 because 7+2=8 and 2+6 is = to 8 as well
Nimfa-mama [501]3 years ago
5 0
7+2=9
2+the opposite number which is 7 equals 9 too.
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The graph of the quadratic function y=-x^2-2x+3 is shown below
Karolina [17]

Answer:

The axis of symmetry is at x=-1

The graph has an x-intercept at (1,0)

The graph has a vertex at (-1,4)

Step-by-step explanation:

we have

y=-x^{2}-2x+3

Statements

case 1) The graph has root at 3 and 1

The statement is False

Because, the roots of the quadratic equation are the values of x when the value of y is equal to zero (x-intercepts)

Observing the graph, the roots are at -3 and 1

case 2) The axis of symmetry is at x=-1

The statement is True

Observing the graph, the vertex is the point (-1,4)

The axis of symmetry in a vertical parabola is equal to the x-coordinate of the vertex

so

the equation of the axis of symmetry is x=-1

case 3) The graph has an x-intercept at (1,0)

The statement is True

see procedure case 1)

case 4)  The graph has an y-intercept at (-3,0)

The statement is False

Because, the y-intercept is the value of y when the value of x is equal to zero

Observing the graph, the y-intercept is the point (0,3)

case 5) The graph has a relative minimum at (-1,4)

The statement is False

Because, is a vertical parabola open downward, therefore the vertex is a maximum

The point (-1,4) represent the vertex of the parabola, so is a maximum

case 6) The graph has a vertex at (-1,4)

The statement is True

see the procedure case 5)

see the attached figure to better understand the problem

6 0
3 years ago
Read 2 more answers
Write .27 as a fraction in simplest form.
Debora [2.8K]

Answer:

27/100

Step-by-step explanation:

It's in the hundreths,

so we just put 27 over 100

8 0
2 years ago
What is the difference between -4=7 vs 5=5
KiRa [710]

Answer:

{-4 = 7, 5 = 5} = {False, True}

Step-by-step explanation:

3 0
3 years ago
Plz do both plz plz plz
shtirl [24]
The first one is A and the second is either B or D I can’t decide
4 0
2 years ago
A large brine tank containing a solution of salt and water is being diluted with fresh water. The relationship between the elaps
kati45 [8]

Answer: 5.97 hours

Step-by-step explanation:

S(t) = 100

I put in 100 = 600 x e^-0.3t and it came out to be 5.97 when rounded to the nearest hundredth. It is also correct on khan academy.

7 0
3 years ago
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