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Oxana [17]
2 years ago
15

Find the values of x and y!!

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
3 0

Answer:

1st option

Step-by-step explanation:

7x + 7 and 112 are vertically opposite angles and are congruent , then

7x + 7 = 112 ( subtract 7 from both sides )

7x = 105 ( divide both sides by 7 )

x = 15

4y and 112 are adjacent angles and sum to 180° , that is

4y + 112 = 180 ( subtract 112 from both sides )

4y = 68 ( divide both sides by 4 )

y = 17

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17 &lt; 2x + 7 &lt;29*<br> Your Inswer
borishaifa [10]

Answer:

5<x<11

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Three times a certain number is 45. What is the number?
andriy [413]
The answer is fifteen (15)
Hope this helps!
4 0
2 years ago
An electronic product contains 48 integrated circuits. The probability that any integrated circuit is defective is 0.01, and the
BigorU [14]

Answer:

0.6173 = 61.73% probability that the product operates.

Step-by-step explanation:

For each integrated circuit, there are only two possible outcomes. Either they are defective, or they are not. The integrated circuits are independent. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

And p is the probability of X happening.

An electronic product contains 48 integrated circuits.

This means that n = 48

The probability that any integrated circuit is defective is 0.01.

This means that p = 0.01

The product operates only if there are no defective integrated circuits. What is the probability that the product operates?

This is P(X = 0). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{48,0}.(0.01)^{0}.(0.99)^{48} = 0.6173

0.6173 = 61.73% probability that the product operates.

5 0
3 years ago
What does 1 ft equal to​
Katyanochek1 [597]
Equal in what? Cm, m, mm ?
6 0
2 years ago
Read 2 more answers
A cherry falls from a tree branch that is 9 feet above the ground.
miss Akunina [59]
The cinematic equation is:
 h (t) = (1/2) * a * t ^ 2 + vo * t + h0
 Where,
 a: acceleration
 vo: initial speed
 h0: initial height
 Substituting values:
 h (t) = (1/2) * (- 32) * t ^ 2 + (0) * t + 9
 h (t) = - 16t ^ 2 + 9
 For t = 0.2 we have:
 h (0.2) = - 16 * (0.2) ^ 2 + 9
 h (0.2) = 8.36 feet
 To touch the ground we have:
 -16t ^ 2 + 9 = 0
 16t ^ 2 = 9
 t = root (9/16)
 t = 0.75 s
 Answer:
 
The height of the cherry after 0.2 seconds is:
 
h (0.2) = 8.36 feet
 
the cherry hits the ground at:
 
t = 0.75 s
5 0
2 years ago
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