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ra1l [238]
4 years ago
15

Solve the system of equations.

Mathematics
1 answer:
il63 [147K]4 years ago
5 0

Answer:

D

Step-by-step explanation:

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Karen wants to estimate the mean number of siblings for each student in her school. She records the number of siblings for each
Tamiku [17]

The sample is 200 randomly selected students.

The following things should be considered:

  • Let us assume the no of siblings for each student be x.
  • Now for determining the mean no of siblings she choose 200 students.

So, here the sample should be 200 randomly selected students.

Therefore the other options should be incorrect.

Thus we can conclude that the sample is 200 randomly selected students.

Learn more about the sample here: brainly.com/question/13287171

5 0
3 years ago
Identify the domain of the exponential function shown in the following graph:
nalin [4]
Hello,

y=k*e^(-x) with k=1(1=k*e^(-0)) is defined for all reals.

Answer C
 
3 0
3 years ago
Read 2 more answers
Write the equation of the line in standard form that passes through the point (1, 7) and has a slope of 2. Show all work.
Finger [1]

Answer:

2x - y = - 5

Step-by-step explanation:

First obtain the equation in slope- intercept form

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2, thus

y = 2x + c ← is the partial equation

To find c substitute (1, 7) into the partial equation

7 = 2 + c ⇒ c = 7 - 2 = 5

y = 2x + 5 ← in slope- intercept form

The equation in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Subtract y from both sides

0 = 2x - y + 5 ( subtract 5 from both sides )

- 5 = 2x - y, that is

2x - y = - 5 ← in standard form

7 0
3 years ago
What is the value of 5c^3 the following expression when c=2
Elina [12.6K]

Answer:

7

Step-by-step explanation:

simple and easy

6 0
3 years ago
–105 + (–14) + 34? I keep getting -75, can someone explain to me what I'm doing wrong?
emmasim [6.3K]
It’s -85 I think there was just an error when you calculated it. -105+-14 is equal to -119. Than you add 34 to it to get -85.
5 0
3 years ago
Read 2 more answers
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