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2 years ago

15

Given the following triangles, what additional information is required in order to know that the triangles are congruent because

of the ASA congruence criteria?
QD and ED are congruent
DCQDCE
QC and DE are congruent
CDEDCQ

2 answers:

Soloha48 [4]2 years ago

8 0

Answer:

The correct answer is : DCQ ( angle) = DCE (angle)

Vlad [161]2 years ago

4 0

Answer: DCQ=DCE

Step-by-step explanation:

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The ratio of two complementary angles is 5:4. Find the measure of both angles.

grandymaker [24]

Answer:

50 degrees and 40 degrees

Step-by-step explanation:

50 degrees and 40 degrees

complimentary = add up to 90 degrees

5:4:9

50:40:90

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Eight less than a number is no more than 14

myrzilka [38]

Answer:

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Step-by-step explanation:

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2 years ago

The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.' a) What

Tcecarenko [31]

Answer:

$Mean = 0.36$

$SD = 0.5817$

$P(x=3) = 0.003588$

Step-by-step explanation:

Given

Let

A = Event of being a universal donor.

So:

$P(A) = 0.06$

$n = 6$

Solving (a): Mean and Standard deviation.

The mean is:

$Mean = np$

$Mean = 6 * 0.06$

$Mean = 0.36$

The standard deviation is:

$SD = \sqrt{np(1-p)}$

$SD = \sqrt{6*0.06*(1-0.06)}$

$SD = \sqrt{0.3384}$

$SD = 0.5817$

Solving (b): P(x = 3)

The event is a binomial event an dthe probability is calculated as:

$P(x) = ^nC_x * p^x * (1-p)^{n-x}$

So, we have:

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^{6-3}$

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 20 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 0.003588$

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Ivanshal [37]

Answer:

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2 years ago

An item that was selling for $72.00 was reduced to $60.00. Find the percent decrease in price. Show all your work.

dsp73

The formula to figure out the percentage increase or decrease is:
<span>(new - old) / old * 100% </span>

<span>new = 60 </span>
<span>old = 72 </span>

<span>(60 - 72) / 72 * 100% </span>
<span>-12 / 72 * 100% </span>
<span>= -1/6 * 100% </span>
<span>= -0.1666... * 100% </span>
<span>≈ -16.667% </span>

<span>Because it is negative, that's a decrease. </span>

<span>Answer: </span>
<span>A decrease of about 16.7%</span>

8 0

2 years ago