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Sindrei [870]
3 years ago
9

What does measure angle ECF equal?

Mathematics
1 answer:
Anika [276]3 years ago
3 0
The measure angle ECF equals 32°.
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The formal definition of a polygon states that a polygon is a closed plane figure formed by _____ or more segments called sides.
Alona [7]
The answer would be three. The reasons are clear. You can't form a closed figure when you just have two sides. All they would do is just intersect each other. Also, one side must intersect with two other noncollinear sides. This means that a polygon has to have at least three sides. 
5 0
3 years ago
How many tissues should the kimberly clark corporation package of kleenex contain? researchers determined that 60 tissues is the
Agata [3.3K]

Answer:

Step-by-step explanation:

For the null hypothesis,

µ = 60

For the alternative hypothesis,

h1: µ < 60

This is a left tailed test

Since the population standard deviation is not given, the distribution is a student's t.

Since n = 100,

Degrees of freedom, df = n - 1 = 100 - 1 = 99

t = (x - µ)/(s/√n)

Where

x = sample mean = 52

µ = population mean = 60

s = samples standard deviation = 22

t = (52 - 60)/(22/√100) = - 3.64

We would determine the p value using the t test calculator. It becomes

p = 0.00023

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5 0
4 years ago
Jeremy buys 2 sweaters for $18 each. He can use only one of the following coupons:
katen-ka-za [31]

Jeremy should use coupon 2 because when you multiply both the sweaters (36) by .25 you get 9, and then you subtract 36 by 9 which is 27.

But when you use coupon 1 you multiply 18 by .40 which is 7.20 where you subtract 18 by 7.20 which is 10.80. You then add 10.80 with 18 which is 28.80.

I don't even know what the question is but I found the same problem and this was the answer

7 0
3 years ago
Find the y-intercept of the line below.
ANEK [815]
Y=mx+b, the b is your y-intercept so just rearrange your equation
y=(3/7)x+(2/7)
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4 years ago
17/10 - 2/5 = *<br> Helpppp
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17/10-(2/5x2/2)
17/10-4/10
=13/10
8 0
3 years ago
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