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maks197457 [2]
2 years ago
5

Can someone HELP ME ON NUMBER 16 IM NOT SURE IM RIGHT!!!

Mathematics
1 answer:
nikitadnepr [17]2 years ago
7 0

Answer:

true im not sure tho but trust me

Step-by-step explanation:

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I need help
algol [13]

Answer:

1. No.

2. Yes, there is no solution here.

Step-by-step explanation:

The former:

8(5x - 3) = 6(-3x - 4); \\ 8 * 5x - 8 * 3 = 6 * (-3x) - 6 * 4; \\ 40x - 24 = -18x - 24; \\ 40x + 18x = -24 + 24; \\ 58x = 0; \\ x = 0.

\{0\} is our set of solutions.

The latter:

3x - 13 = 7(x + 2) - 4(x - 7); \\ 3x - 13 = 7x + 7 * 2 - 4x - 4 * (-7); \\ 3x - 13 = 7x + 14 - 4x + 28; \\ 7x - 4x - 3x = -13 - 14 - 28;\\ 0x = 55; \\ x \in \emptyset.

In other words, there is not any solution from the set of real numbers that suits us.

5 0
2 years ago
Suppose a random sample of 25 students is selected from a community college where the scores in the final exam (out of 125 point
BartSMP [9]

Answer:

he probability that the sample mean deviates from the population mean = 112 by no more than 4= 0.9050

Step-by-step explanation:

mean = 112

sd = 12/sqrt(25) = 2.4

z = (x - μ)/σ

z = (116 - 112)/2.4 = 1.67

Therefore,

P(X >= 116) = P(z <= (116 - 112)/2.4)

= P(z >= 1.67)

= 1 - 0.9525

= 0.0475

z = (x - μ)/σ

z1 = (108 - 112)/2.4 = -1.67

z2 = (116 - 112)/2.4 = 1.67

Therefore, we get

P(108 <= X <= 116) = P((116 - 112)/2.4) <= z <= (116 - 112)/2.4)

= P(-1.67 <= z <= 1.67) = P(z <= 1.67) - P(z <= -1.67)

= 0.9525 - 0.0475

= 0.9050

6 0
3 years ago
What is the percent of decrease from 2,000 to 1,000?
IgorLugansk [536]

Answer:

50%

Step-by-step explanation:

2,000 is 2 x more than 1,000. Or, 1,000 is half of 2,000 and half of 100%=50%.

7 0
3 years ago
What attribute must be present for a quadrilateral to also be a trapezoid?
konstantin123 [22]

Answer:

At least two of the opposite sides must be parallel.

Step-by-step explanation:

In the picture below, the segment AB must be parallel to the segment DC so that the figure can be called a trapezoid.

3 0
3 years ago
Read 2 more answers
What is the slope?<br> Please help!!!
adell [148]
Check the picture below.

8 0
3 years ago
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