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sleet_krkn [62]
2 years ago
14

Plz solve this pic fast and correctly!!!

Mathematics
1 answer:
Leni [432]2 years ago
6 0

Answer:

mi = 45(hr)

  hr = mi/45

Step-by-step explanation:

Distance = 45 mph times the number of hours (time)   D = 45t  

time in hours = the number of miles (Distance) divided by 45 mph  t = D/45

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What does the graph of f(x)=3x^2-2x+1 look like
aleksklad [387]

Answer:

Below.

Step-by-step explanation:

This is a parabola.

As the coefficient of x^2 is positive it will open upwards ( shaped like a 'U').

If we convert to vertex form we can find the line of symmetry  and the coordinates of the vertex:

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

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

f(x) = 3[(x - 1/3)^2 - (1/3)^2] + 1

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

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

So the line of symmetry is  x = 1/3 and

the vertex ( the minimum of the curve) is at (1/3, 2/3).

5 0
3 years ago
Find the value of x. Give the answer in simplest radical form.<br><br> PLEASE HELP
Dafna11 [192]

The answer is 7 or 7.07. Hope this helps

5 0
3 years ago
What property of equality is 15v-55=-10
aliina [53]

Answer:

3

Step-by-step explanation:

15v-55=-10

15v=45/÷15

v=3

3 0
3 years ago
Roopa and Noor try to simplify the expression 18 x 4 the power of 2 + (9-3) the power of 2. Roopa simplifies the expression and
pentagon [3]

Answer:

Noor was right because the answer is 324

Step-by-step explanation:

the BODMA rule of solving the expression the bracket first before applying the index or before multiplying.

The correct way of solving the expression is

18 x 4x 4 + (9-3)(9-3)

= 18×16 + 6×6

= 288 + 36

= 324

But

Roopa solved it this way instead

18 x 4x 4 + (9×9-3×3)

= 18×16 + (81-9)

= 288 + 72

= 360

So, Noor was right while Roopa was wrong

3 0
3 years ago
Read 2 more answers
Convert 25% to a decimal.
LekaFEV [45]
Your answer is C.

Hope this helped.
5 0
3 years ago
Read 2 more answers
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