Answer:
x = -3
Step-by-step explanation:
3x + 10 -10 = 1 - 10
3x = -9
3x / 3 = -9/3
x = -3
Answer:
Seven-thirds
Step-by-step explanation:
The give equation is
.
The leading coefficient is 9
The constant term is 7
According to the rational root theorem, the ratio of factors the constant terms to that of the coefficient of the leading term are all possible rational roots of the given polynomial.
Base on this theorem,
or seven thirds is a potential root because the numeration is a factor of 7 and the denominator is a factor of 9.
For this, the first thing to do is to assume that the function of temperature with respect to r is written in one of the following ways:
Way 1:

Way 2:

To find the instant variation we must find the derivative of the temperature with respect to the distance r.
We have then:
For function 1:


Rewriting

For function 2:


Rewriting

Answer:
The instantaneous variation of the temperature with respect to r is given by:
Assuming function 1:

Assuming Function 2:

As shadow is directly propotional to height, we can say that,
Height/Shadow =k, where k is a constant.
So, in case of electric pole,
1410=k→(1)
In case of tree,
HT15=k→(2), where HT is height of tree
So, from (1) and (2),
1410=HT15
HT=14∗1510=21m
So, height of tree is 21 meters.
hope it helps thank youuuu