On a map with a scale of 1 : 50000 , he shortest distance from the railway line to the river is 2.1km. What distance on the map
1 answer:
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Part A)
The given equation is:
The radicand or discriminant(d) of the equation will be:
Since the discriminant is equal to 0, the given quadratic equation has only 1 root. In other words we can say the the given equation is a perfect square.
Part B)
The given equation is:
We can solve this expression by factorization. Factors of middle term are to be made in such a way that their product equals the product of first and third term and sum is equal to the middle term i.e. product should be 4x² and sum should be -4x.
So the two such terms are -2x and -2x. Using the factors and simplifying the equation by taking common we get:
The given equation is:
The radicand or discriminant(d) of the equation will be:
Since the discriminant is equal to 0, the given quadratic equation has only 1 root. In other words we can say the the given equation is a perfect square.
Part B)
The given equation is:
We can solve this expression by factorization. Factors of middle term are to be made in such a way that their product equals the product of first and third term and sum is equal to the middle term i.e. product should be 4x² and sum should be -4x.
So the two such terms are -2x and -2x. Using the factors and simplifying the equation by taking common we get:
Answer: C
Step-by-step explanation:
You can write each term into a fraction.
becomes
When you multiply 2 terms with the same base, you add the exponents.
is also the same as
You get this because . When you pull out 5 os x, you are left with x³ on the inside.
The gravity is 1.5m\s^2
Further explanation:
The weight of any object is given by the product of mass and gravity of the object
Let
m denote the mass of object
g be the gravity
and
w be the weight
Then the statement can be mathematically written as:
Given
m=300kg
w=450N
Putting the values of m and w into the formula
The gravity is 1.5m\s^2
Keywords: Mass, Gravity
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