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Trava [24]
3 years ago
12

Find the value of z in the isosceles triangle shown below. V20 V20 8

Mathematics
1 answer:
Andrews [41]3 years ago
5 0

Answer:

<h3>x = 2</h3>

Step-by-step explanation:

use Pythagorean theorem:

a² + b² = c²

where a = x

           b = 8/2 = 4  

           c = √20

plugin values into the formula:

x² + 4² = (√20)²

x² + 16 = 20

x² = 20 - 16

x = √4

x = 2

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melomori [17]

we know that

The probability that "at least one" is the probability of exactly one, exactly 2, exactly 3, 4 and 5 contain salmonella.

The easiest way to solve this is to recognise that "at least one" is ALL 100% of the possibilities EXCEPT that none have salmonella.

If the probability that any one egg has 1/6 chance of salmonella

then

the probability that any one egg will not have salmonella = 5/6.

Therefore

for all 5 to not have salmonella


= (5/6)^5 = 3125 / 7776

= 0.401877 = 0.40 to 2 decimal places


REMEMBER this is the probability that NONE have salmonella


Therefore

the probability that at least one does = 1 - 0.40

= 0.60


the answer is

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6 0
3 years ago
In the figure below, if the radius of circle o
Aliun [14]

Answer:

The length of AC is 10 units

Step-by-step explanation:

In the given circle O

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→ That means OB and AC are equal in lengths

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∵ B is a point on the circle

∴ OB is a radius of the circle O

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∴ OB = 10 units

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∴ AC = 10 units

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5 0
3 years ago
Together, two people earn $28,000. One earns $2,000 more than the other. How much is the smaller income?
Inessa [10]
Look at this:

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3 0
3 years ago
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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Answer:

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Step-by-step explanation:

I used the calculator :)

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