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2 years ago

Pls answer……………………..

Mathematics

1 answer:

algol [13]2 years ago

8 0

Answer:

They are not congruent because the lines aren't parallel.

Step-by-step explanation:

For all of those angle relation theorems to be valid, PARALLEL lines need to be split by a transversal.

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As part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 c

iris [78.8K]

Answer:

Step-by-step explanation:

Given that a part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year.

If x is the selenium concentration then

X has mean= 6.21 mg/dl

and std dev = 1.84

Sample size n = 36

std error of sample = $\frac{1.84}{\sqrt{36} } \\=0.307$

Margin of error for 95%

$1.96(0.307)=0.602$

Confidence interval = $(6.21-0.605, 6.21+0.605)\\= (5.605, 6.815)$

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3 years ago

PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( !

Kaylis [27]

Answer:

1/4:1/5

Step-by-step explanation:

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3 years ago

PLEASE HELP EASY 10 POINTS!!

vlada-n [284]

Answer: 19.625

Step-by-step explanation: if u need the explanation add me

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2 years ago

SHOW WORK PLS.<br> y = x ^ 2 - x - 11<br> y = - x - 7<br> solve by substitution!

slava [35]

X^2-x-11=-x-7
X^2-11=-7
X^2=4
X=2 (4 was reduced to 2 after the equation was square rooted)
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3 0

2 years ago

Find the midpoint of the line segment

strojnjashka [21]

Answer:

midpoint (5,4)

Step-by-step explanation:

The midpoint(M) of a segment with endpoints (x₁ , y₁) and ( x₂, y₂) is

where x₁ = 2 and x₂ = 8

y₁ = 0 and y₂ = 8

M = $\frac{x_1 + x_2}{2} ,\frac{y_1 + y_2}{2}$

M = $\frac{2 + 8}{2} ,\frac{0 + 8}{2}$

M = 5 , 4

5 0

2 years ago