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3 years ago

Is angle ABC congruent to angle DCE

Mathematics

2 answers:

deff fn [24]3 years ago

8 0

Answer: where's the pic?

Step-by-step explanation:

xxTIMURxx [149]3 years ago

4 0

Answer:

I do not think I can answer this without any pictures.

Step-by-step explanation:

Sorry, but could you attach a link or maybe sketch it out?

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The drying times for a certain type of cement are normally distributed with a standard deviation of 30 minutes. A researcher wis

IceJOKER [234]

Answer:

h. 36

Step-by-step explanation:

For a 68.26% confidence, z = 1.0.

Standard deviation (s) = 30 minutes

The sample size needed to assure that the sample mean does not differ from the true mean by more than 5 minutes is given by:

$5\geq z*\frac{s}{\sqrt n}\\\sqrt n\geq 1*\frac{30}{5}\\n\geq 36$

The sample size needed is 36.

5 0

3 years ago

What is the slope <br> (-3,1) (4,5)

myrzilka [38]

The slope in short is:
4/7

7 0

3 years ago

Read 2 more answers

Explain each step for solving x^2 - 4x=6 by the method of completing the square.

deff fn [24]

Answer:

If you aren't looking for the quadratic solving method then comment it down below and tell me what you're looking for

QUADRATIC EQUATION

x²- 4x = 6

(x - 2)²- 4 = 6

(x - 2)² = 10

x - 2 = ±10

x = ±10+2

x = -8, 12

3 0

3 years ago

What was the name of the famous mogul ruler who finally defeated the song dynasty and saw the complete conquest of china?

Finger [1]

Did you mean mongol?
Kublai Khan

5 0

3 years ago

Sixty percent of the customers who go to Sears Auto Center for tires buy four tires and 22% buy two tires. Moreover, 14% buy few

Bezzdna [24]

Answer:

There is a 4% probability that a customer buys three tires.

Step-by-step explanation:

We have those following percentages

60% buy four tires. This is also the probability that someone buys four tires.

22% buy two tires

14% buy fewer than two tires(one or none).

P% buy three tires

The sum of the percentages must be 100%.

$60 + 22 + 14 + P = 100$

$96 + P = 100$

$P = 4$

There is a 4% probability that a customer buys three tires.

8 0

3 years ago