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bija089 [108]
4 years ago
13

PLZZ HELP!!! ⚠️⚠️ ATTACHED AND NEEDS DONE ASAP!

Mathematics
1 answer:
Nataly [62]4 years ago
8 0

Step-by-step explanation:

change the unit

50 km per 1 hour

50 km/h = 50,000 m/ 3600 s = 13.8 m/s

the lorry speed is 13.5 m/s or 0.3 m slower than the limit

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Andrew solves 6x2=12x by using the quadratic formula. What values does he use for a, b, and c? a = (Put the number only in the b
zhenek [66]

Answer:

a=6, b=-12, and c=0

Step-by-step explanation:

The standard format for the quadratic formula is ax^2+bx+c (=0).

If we rearrange the numbers given to look like this formula, we will find the values of a, b, and c.

6x^2=12x    We can move over the 12x to the other side.

6x^2-12x=0   There is no visible value of c, but since there is no term without a variable, c=0

6x^2-12x+0=0

So a=6, b=-12, and c=0

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4 years ago
Simplify the following 7-8c+3-6c
Neporo4naja [7]

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Step-by-step explanation:

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7 0
3 years ago
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How do I solve this equation by using the quadratic formula 3x^2-12x-27=-6
Natali [406]

Answer:

Move all terms to the left side of the equation and simplify.

3x²−12x−21=0

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(−b±√b²−4(ac))/2a

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The result can be shown in multiple forms.

Exact Form: x=2±√11

Decimal Form: x=5.31662479…,−1.31662479…

Step-by-step explanation:

3 0
3 years ago
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Korolek [52]

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Step-by-step explanation:

We can break the shape up into a right angled triangle and a square;

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3 years ago
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Nutka1998 [239]

Answer:

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Step-by-step explanation:

Remember to follow PEMDAS (Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction).

First, divide: 8/4 = 2

Next, subtract: 24 - 2 = 22

22 is your answer

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3 years ago
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