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Ray Of Light [21]
2 years ago
6

Evaluate 42 – a² + ab for a = 6 and b = 5.

Mathematics
2 answers:
Reika [66]2 years ago
7 0

Answer:

42-a²+ab

42-6²+6×5

42-36+30

6+30

36.

rodikova [14]2 years ago
3 0
42-(6x6)+(6x5)
42-36+30
6+30
Answer: 36
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Debra travels a distance of 2 miles in 1 minute how much distance can she cover in 25 minutes
Marta_Voda [28]

Debra will travel 50 miles in 25 minutes

Step-by-step explanation:

Given

distance = 2 miles

Time = 1 minute

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We can use the proportions to find the number of miles debra will travel in 25 minutes

So,

Distance:Time::Distance:Time\\2:1::Distance:25\\\frac{2}{1} = \frac{Distance}{25}\\Distance = 25 *2\\= 50\ miles

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Debra will travel 50 miles in 25 minutes

Keywords: Proportion, rate

Learn more about proportion at:

  • brainly.com/question/4528757
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8 0
3 years ago
An equilateral triangle has a perimeter of 15x +3. what is the length of each side of the triangle?
xxTIMURxx [149]
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3 years ago
A car was Skid to a half a uniform rate of -9.4 m/s ^2 squared if the measure skid marks that are 34 m long with what speed is t
babymother [125]

Answer:

vi = 25.28 m/s

Step-by-step explanation:

a = -9.4 m/s²

x = 34 m

vf = 0 m/s

vi = ?

We can apply the equation

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⇒     vi = √(vf² - 2*a*x)

⇒     vi = √((0 m/s)² - 2*(-9.4 m/s²)*34 m)

⇒     vi = 25.28 m/s

5 0
3 years ago
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