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raketka [301]
3 years ago
11

What is the value of x?

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
4 0

The formula to start with is (DC +CE) * CE = (AB + BE) * BE

Replace the letters with the numbers and equations:

(1 + x+4) * x+4 = (11 + x+1) * x+1

(x+5) * (x+4) = (x+12) * (x+1)

x^2 + 9x +20 = x^2 +13x +12

x^2 = x*x = 2x

11x+20 = 15x+12

20 = 4x+12

8 = 4x

x = 8/4

x = 2

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Solve the compound inequality 6b < 24 or 4b + 12 > 4.
myrzilka [38]
The answer is a. b>-2 because

6b<24
b< 24/6
b<4


And

4b+12>4
4b>4-12
4b>-8
b>-8/4
b>-2
3 0
3 years ago
Function f(x) is positive, increasing and concave up on the closed interval [a, b]. The interval [a, b] is partitioned into 4 eq
Umnica [9.8K]

The left sum would be f0+f1+f2+f3

The right sum would be f1+f2+f3+f4

The trapezoidal rule value is:

(f0+f1)/2 + (f1+f2)/2+(f2+f3)/2 +(f3+f4)/2

This would put the trapezoidal rule in the middle , which makes the answer:

Lower sum < Trapezoidal rule Value < Upper sum

5 0
3 years ago
Read 2 more answers
Anyone would like to do this im so bad at math lm(a)o you will get brainliest if you do this correctly
Maru [420]

Answer:

1.548

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What does equal to 1+1?
Fudgin [204]

Answer:

21

Step-by-step explanation:

because look, 1+1 = 2 but if u add 2 to 1 u get 21 together.

4 0
3 years ago
Read 2 more answers
A container holds 50 electronic components, of which 10 are defective.
Gala2k [10]

Answer:

There is some inforrmation that is missing in this question. It should read:

A container holds 50 electronic components, of which 10 are defective. If 6 components are drawn at random from the container, the probability that at least 4 are not defective is . If 8 components are drawn at random from the container, the probability that exactly 3 of them are defective is .

Answers

Part 1.   0.02

Part 2.  0.0375

Explanation

The probability is a chance of an event happening. It is calculated as;

probability = (Number of favourable outcome)/(Number of available outcome)

Part 1

6 are chosen at random. If 4 are not defective, then 2 are defective.

P(at least 4 are not defective) = 4/40 × 2/10

                                               = 1/10 ×1/5

                                               = 1/50

                                                = 0.02

Part 2

8 are chosen at random. If 3 are defective, the 5 are not defective.  

P(3 are defective) = 3/40 × 5/10  

                            = 15/400

                            = 3/80

                           = 0.0375

Step-by-step explanation:

4 0
3 years ago
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