<h2>Good morning
,</h2>
<em><u>Answer</u></em>:
The quadratic equation is : x²+x+1=0
<u><em>Step-by-step explanation:</em></u>
Generally:
let S be the sum of the roots z₁ and z₂
and P be the product of the roots z₁ and z₂
then z₁ and z₂ are the solutions for the equation: x² − Sx + P = 0
Now,
S=-1 and P=1 then the equation is x²+x+1=0.
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:)
Answer:
10.50°C
Step-by-step explanation:
Given x = 2 + t , y = 1 + 1/2t where x and y are measured in centimeters. Also, the temperature function satisfies Tx(2, 2) = 9 and Ty(2, 2) = 3
The rate of change in temperature of the bug path can be expressed using the composite formula:
dT/dt = Tx(dx/dt) + Ty(dy/dt)
If x = 2+t; dx/dt = 1
If y = 1+12t; dy/dt = 1/2
Substituting the parameters gotten into dT/dt we will have;
dT/dt = 9(1)+3(1/2)
dT/dt = 9+1.5
dT/dt = 10.50°C/s
Hence the rate at which the temperature is rising along the bug's path is 10.50°C/s
Answer:
a. 0.5
Step-by-step explanation:
We know that X follows normal distribution with
mean=75
standard deviation=8


P(0<Z<∞)
The area under the normal curve is 1 and the (0<Z<∞) =0.5 and (-∞<Z<0) =0.5
So, P(0<Z<∞)=0.5
Hence the P(X ≥ 75)=0.5
The next bigger tenth is 0.5 .
The next smaller tenth is 0.4 .
0.473 is closer to 0.5 than it is to 0.4 . So the nearest tenth is 0.5 .
Answer: C
Explanation: it’s the longest one