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blagie [28]
3 years ago
9

Solve for x. 0.71= 1/2(9.8) x^2. ​

Mathematics
1 answer:
Fudgin [204]3 years ago
5 0

Answer: 0.38065

in simpler terms x=±  0.145  =±0.38065

Step-by-step explanation: -490x2+71 = 0  

Subtract  71  from both sides of the equation :  

                     -490x2 = -71

Multiply both sides of the equation by (-1) :  490x2 = 71

Divide both sides of the equation by 490:

                    x2 = 71/490 = 0.145

 

When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:  

                     x  =  ± √ 71/490  

The equation has two real solutions  

These solutions are  x = ±√ 0.145 = ± 0.38065  

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Answer:

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Step-by-step explanation:

since there are two jobs and a chance that he won't get either that's three options. so the denominator is three (as a fraction). there are two jobs so the probability of James getting one of the two is 2/3. 2/3 as a decimal is 0.66666 and keeps going on and on forever. Rounded to the nearest hundredth, 0.666666 is 0.67.

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3 years ago
Convert repeating decimal 9.81 to a fraction
vampirchik [111]

Answer:

981/100

Step-by-step explanation

step: 9.81= 9.81/1

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9.81/1 = (9.81*100)/(1*100)= 981/100

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4 years ago
-6.25x + 262.5 = 250
ZanzabumX [31]

Answer:

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Step-by-step explanation:

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4 years ago
Read 2 more answers
F(x) = 3x^2-3x + 1<br> Find f (-2)
Oxana [17]

Answer:

19

Step-by-step explanation:

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

Let x = -2

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

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3 years ago
A book sold 35,300 copies in its first month of release. Suppose this represents 6.3 of the numbers sold to date. How many copie
skelet666 [1.2K]

Answer:

560,317.460

Step-by-step explanation:

The computation of copies that have been sold is shown below:-

we assume the number of copies is x

So, the number of copies in the first month is

= \frac{6.3}{100} x

As per the situation the number of sold copies is 35,300 so the equation will be

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