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valentinak56 [21]
2 years ago
5

Please help I have no idea what I’m doing

Mathematics
1 answer:
myrzilka [38]2 years ago
5 0

Answer:

1. Given

2. corresponding angles postulate

3. vertical anglrs theorem

4. transitive property

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BEST ANSWER GETS BRAINLIEST!! HELP PLEASE
skad [1K]
Area of the sign ( trapezoid ) :
A = ( a + b ) / 2 · h 
where: a = 8, b = 5, h = 5
A = ( 8 + 6 ) / 2 · 5 = 
= 14/2  · 5 = 7 · 5 = 35 ft²
Answer:
B ) 35 square feet
7 0
2 years ago
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An airplane flies at a rate of 356 km/h. the plane travels a total distance of 1424 km. (use distance = rate * time for your equ
frozen [14]

Your distance is 1424 and your rate is 356. As you said, d = r*t. Since you don't have the time you would do 1424 divided by 356. This leaves you with a time of 4 hours. (Don't forget units!)

6 0
3 years ago
The following information is obtained from two independent samples selected from two normally distributed populations.
AysviL [449]

A. The point estimate of μ1 − μ2 is calculated using the value of x1 - x2, therefore:

μ1 − μ2 = x1 – x2 = 7.82 – 5.99

μ1 − μ2 = 1.83

 

B. The formula for confidence interval is given as:

Confidence interval = (x1 –x2) ± z σ

where z is a value taken from the standard distribution tables at 99% confidence interval, z = 2.58

and σ is calculated using the formula:

σ = sqrt [(σ1^2 / n1) + (σ2^2 / n2)]

σ = sqrt [(2.35^2 / 18) + (3.17^2 / 15)]

σ = 0.988297

 

Going back to the confidence interval:

Confidence interval = 1.83 ± (2.58) (0.988297)

Confidence interval = 1.83 ± 2.55

Confidence interval = -0.72, 4.38

3 0
3 years ago
HELP PLEASE WIll GIVE A GOOD VOTE
Luba_88 [7]

Answer:

d) √2/2

Step-by-step explanation:

cos∠E= 5/5√2= 1/√2=√2/2

Correct option is d)√2/2

3 0
3 years ago
Emmanuel went to the store and
musickatia [10]

Answer:

$148.50

Step-by-step explanation

I solved this by using fractions.

x/450=33/100 is how I set up the problem. 33/100 represents 33%, while x/450 represents how much the jacket costs now.

I then went across and multiplied x by 100, and 450 by 33, which gave me 100x=14850. After this I divided each side by 100 to get 148.5, being the cost of the jacket.

7 0
3 years ago
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