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Lubov Fominskaja [6]
3 years ago
9

HELP!!!! I WILL GIVE BRAINLIEST TO THE FIRST ANSWER!!!!!!!

Mathematics
1 answer:
aleksklad [387]3 years ago
3 0
I would say c. I’m not sure if I’m right if I’m not sorry but good luck
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Find the surface area of the square pyramid
mojhsa [17]

Answer:

4. 56 ft²

Step-by-step explanation:

SA = (4×4)+(4×½×4×5)

= 16+40

= 56

6 0
3 years ago
A small combination lock on a suitcase has 3 ​wheels, each labeled with the 10 digits from 0 to 9. If an opening combination is
Artyom0805 [142]

Answer:

0.14% probability of a person guessing the right​ combination

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the numbers are selected is important. For example, 1,3,2 is a different combination than 3,1,2. So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

Desired outcomes:

One right combination, so P = 1

Total outcomes:

10 numbers from a set of 3. So

P_{(10,3)} = \frac{10!}{(10-3)!} = 720

What is the probability of a person guessing the right​ combination?

p = \frac{D}{T} = \frac{1}{720} = 0.0014

0.14% probability of a person guessing the right​ combination

5 0
4 years ago
What divided by 80 equals 70?
xeze [42]
X/80 = 70
x = 80x70
x = 5,600
7 0
3 years ago
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slava [35]

somebody help this person

7 0
3 years ago
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What constant term should be added to both sides to complete the square on the left side?
grandymaker [24]

Answer:

  • 9/64

Step-by-step explanation:

<u>Given</u>

  • x² - 3/4x + _____ = 10

Need to complete square on the left side of equation

<u>The square should be in the form of:</u>

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<u>We see a = x therefore </u>

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  • b = -3/8 and
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So the missing constant term is 9/64

6 0
3 years ago
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