Your answer will be in miles per hour
There are two ways to do this. Both use the forumula
d = v * t
Givens
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d = 5/9 mile
t = 1/4 hour
Method One
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Use your calculator to get rid of the fractions. (Likely both your teacher and your parents will hate this method, But humor me, do it).
d = 5/9 mile = 0.55555 mile
t = 1/4 hour = 0.25 hour
Calculation
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v = d/t
v = 0.555555 / 0.25
v = 2.2222222 miles per hour.
Method Two
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Use the fractions.
d = 5/9 // 1/4 Invert and multiply by the denominator.
d = 5/9 * 4/1
d = 20 / 9
d = 2 2/9
Answer:
The expression is not defined in a set of real numbers.
The square root of a negative number is not defined in the set of real numbers.
F(x)=18.1+2.2ln(x+1), when x=14
f(14)=18.1+2.2ln(14+1)
f(14)=18.1+2.2ln(15)
f(14)≈24.06 ft (to nearest hundredth of a foot)
Answer:
Step-by-step explanation:
hello :
5(x + 7)² = 245
(x + 7)² = 49
x=0 is solution but you have other solution -14 because :(-14+7)² = (-7)² =49
here is an solution Step-by-step :
(x + 7)² = 49 means : (x + 7)² = 7²
(x + 7)² - 7²=0 use identity : a²-b² = (a-b)(a+b)
a=x+7 and b= 7
(x+7-7)(x+7+7) = 0
x(x+14)=0
x=0 or x+14=0
so : x=0 or x= -14
From my knowledge, I think it is 9