Answer:
<3 ~= <5 - Alternate Interior Angles Theorem
<3 ~= <7 - Corresponding Angles Theorem
<5 ~= <7 - Vertical Angles Theorem
line I || line m - Transitive Property
Answer: thats easy i do that
32x-81 answer question 4 is 98x-9
Step-by-step explanation:
you only multiply the number if its has an exponite and you dont add a number with an x or a y only if it has another value
There are infinitely many solutions of the system of equations, x + y = 1
and 2x + 2y = 2
Step-by-step explanation:
We need to find how many solutions are there to the system of equations.

Solving:
Multiply equation (1) with 2 and subtract with equation(2)

Since our answer is 0=0 so, there are infinitely many solutions.
Keyword: Systems of equations
Learn more about Systems of equations at:
#learnwithBrainly
C. It is a basic parabola
Answer:
Step-by-step explanation:
Hello!
To see if driving heavy equipment on wet soil compresses it causing harm to future crops, the penetrability of two types of soil were measured:
Sample 1: Compressed soil
X₁: penetrability of a plot with compressed soil.
n₁= 20 plots
X[bar]₁= 2.90
S₁= 0.14
Sample 2: Intermediate soil
X₂: penetrability of a plot with intermediate soil.
n₂= 20 (with outlier) n₂= 19 plots (without outlier)
X[bar]₂= 3.34 (with outlier) X[bar]₂= 2.29 (without outlier)
S₂= 0.32 (with outlier) S₂= 0.24 (without outlier)
Outlier: 4.26
Assuming all conditions are met and ignoring the outlier in the second sample, you have to construct a 99% CI for the difference between the average penetration in the compressed soil and the intermediate soil. To do so, you have to use a t-statistic for two independent samples:
Parámeter of interest: μ₁-μ₂
Interval:
[(X[bar]₁-X[bar]₂)±
*Sa
]


[(2.90-2.29)±2.715*0.20
]
[0.436; 0.784]
I hope this helps!