Answer Expert Verified
Here, Discriminant D is less than 0, So No real value is possible, Hence this situation is
not possible
.
What is the present age of the daughter of the age of a mother?
Answer: Hey friend here’s your answer. Therefore the present age of daughter is 12 years and that of mother is 3*12=
36 years
.
When the present age of mother is added to the present age of daughter the total is 40 years what will be the total age in years after 5 years?
Now, we are given that the mother’s age will be
twice her daughter’s age
. Hence, the present age of the mother is 40 years and the present age of the daughter is 10 years.
When the present age of mother is added to the present age of the daughter the sum is 50 years?
Total age =
40 + 10
= 50 years.
Is the following situation possible if so determine the present age?
Age of
first friend = (x – 4) yrs
. and age of second friend = (20 – x – 4) yrs = (16 – x) yrs. So, the given quadratic equation has no real roots and hence it is not possible to calculate the present ages.
Can you design a rectangular park of perimeter 80m and area 400 square meters?
Summary:
Yes
, it is possible to design a rectangular park of perimeter 80 m and area 400 m
2
. The length and breadth both are equal to 40 m. Hence, the park will be square in shape.
Is as much younger than B and he is older than C if the sum of the ages of B and C is 50 years what is definitely the difference between B and A’s age?
A is as much younger than B and he is older than C. If the sum of the ages of B and C is 50 years, what is definitely the difference between B and A’s age? Answer: By problem,
age of A= avg of ages of B & C= 50/2=25
.
Is 2x 5’1 a linear equation?
It is a
linear equation
.
What should be added to 7 3to get3 7?
Hence,
58/21
should be added to -7/3 to get 3/7.
What is the ratio of father’s age to the sons age?
The ratio of the father’s age to the son’s age is
5 : 2
.
Which of the following is not a quadratic equation?
⇒ 4 x = 11 Thus,
x
2
+ 4x = 11 + x
2
is not a quadratic equation. can be written as x 2 − 4 x + 0 = 0 So, x 2 − 4 x is a quadratic equation.
Can you design a rectangular park of perimeter 80m and area 300 m2?
yes it is possible
…to draw a rectangle of length 30 m and breadth 10m.
What do you observe about the sum and the product of the roots of each quadratic equation?
The sum of the roots of a quadratic equation is
equal to the negation of the coefficient of the second term, divided by the leading coefficient
. The product of the roots of a quadratic equation is equal to the constant term (the third term), divided by the leading coefficient.
Is it possible to design a rectangular plot?
Let length of the rectangular park be x m and breadth be y m. So, the
given quadratic equation has equal roots
and hence it is possible to design a rectangular park.
Is it possible to design a rectangular rice field?
no its is not possible
.
How old is Tanya now?
| What is the present age of Tanya? | I. The ratio between the present ages of Tanya and her brother Rahul is 3 : 4 respectively. | II. After 5 years the ratio between the ages of Tanya and Rahul will be 4 : 5. | III. Rahul is 5 years older than Tanya. |
|---|
How many solutions does y 2x 5 have?
Summary: The linear system y = 2x – 5 and -8x – 4y = -20 has only
one solution
.
What should be added to twice the rational number 7 3to get 3 7?
So the number that must be added to twice rational number -7/3 to get 3/7 is
107 / 21
.
Is 2x 5 a linear equation?
Yes,
2x – 5 = 0
can be represented as a linear equation in two variables.
Why 5x 3 is not a linear equation?
Answer: Step-by-step explanation:
Because there are not two variables
…
What should be added to get 7/12 to get?
−1960 should be added to712to get
415
.
What should be added to a 3 7 solution?
Answer:
8/35
should be added to 1/5 to get 3/7.
What do you observe about the relationship between the number of roots and the degree of polynomials?
Remember that the degree of a polynomial, the highest exponent, dictates the maximum number of roots it can have. Thus, the degree of a polynomial with a given number of roots is
equal to or greater than the number of roots that are given
.
Do you think quadratic equation can be determined given the sum and product of its roots?
If a quadratic equation is given in standard form, we can find the sum and product of the roots using
coefficient of x
2
, x and constant term
.
Which one of the following is a quadratic equation?
In math, we define a quadratic equation as an equation of degree 2, meaning that the highest exponent of this function is 2. The standard form of a quadratic is
y = ax^2 + bx + c
, where a, b, and c are numbers and a cannot be 0. Examples of quadratic equations include all of these: y = x^2 + 3x + 1.
How do you know if it is not a quadratic equation?
So, to check if an equation is a quadratic equation, you
want to make two passes through it
(both sides): Does it have an x2 term appearing somewhere? If not, then it’s not a quadratic equation.
Which of the following is a root of the equation 2×2 5x 3 0?
Hence,
3/2 and 1
are the roots of the equation.
Is it possible to design a rectangular rice field whose length is twice its width and the area is 800m 2?
no its
is not possible
.
Does there exist a quadratic equation whose coefficients are all distinct Irrationals?
Yes
, consider the quadratic equation with all distinct irrationals coefficients i.e., √3×2 – 7 √3x + 12√3 = 0. The roots of this quadratic equation are 3 and 4, which are rationals.
