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4 years ago

3178 rounded to nearest thousand

Mathematics

2 answers:

Sophie [7]4 years ago

4 0

Answer:

the answer is 3000, hope it helped :-)

dmitriy555 [2]4 years ago

3 0

3000 uhhhhhhhhh yeah

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11:19. you would put 11 first to represent the girl and 19 by adding 11 and 8 to represent the total number of students

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4 years ago

State the domain, the range, and the intervals on which function is increasing, decreasing, or constant in interval notation

aleksandr82 [10.1K]

Answer:

Domain: $[-1,\infty)$

Range: $(-\infty, 3]$

Decreases over: $(-1,-\infty)$

Step-by-step explanation:

Given

$f(x) = -\sqrt{x + 1} + 3$ --- Missing from the question

Solving (a): The domain

To get the domain, the expression under the square root must not be negative.

In other words:

$x + 1 \ge 0$

Solve for x

$x + 1 -1\ge 0-1$

$x \ge -1$

Hence, the domain is:

$[-1,\infty)$

To get the range, we plot the values of the domain in the expression.

$x = -1$

$f(x) = -\sqrt{x + 1} + 3$

$f(-1) = -\sqrt{-1+1} +3$

$f(-1) = -\sqrt{0} +3$

$f(-1) = -0 +3$

$f(-1) = 3$

$x = \infty$

$f(\infty) = -\sqrt{\infty +1}+3$

$f(\infty) = -\sqrt{\infty}+3$

$f(\infty) = -\infty+3$

$f(\infty) = -\infty$

So, the range is: $(-\infty, 3]$

To get the interval where the function increases or not, we simply plot the graph of f(x).

See attachment for graph.

From the attachment, it will be observed that the graph of f(x) continuously decreases from x = -1, and it never increased.

This implies that, the graph decreases over the interval $(-1,-\infty)$

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3 years ago

What’s the slope of (-4,-8) and (0,2)

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The slope is 5/2.

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3 years ago

Samuel bakes cakes and earns $5 profit from each cake. This week, he made 25 cakes. One cake was so beautiful, that the customer

Anna35 [415]

Answer:

$150.00

Step-by-step explanation:

$5 times 25 cakes = $125.00 plus the extra $25.00 in tips = $150.00

Hope this helped you :)

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4 years ago

A bag contains 4 blue marbles, 2 black marbles, and 3 red marbles. If a marble is randomly drawn from the bag, what is probabili

maw [93]

There are 4 blue marbles
There are 2 black marbles
There are 3 red marbles
There are a total of 9 marbles
You minus the black marbles from the total
9-2=7
If there are 7 non black marbles then the ratio is 7:9
7:9 is the probability that you won't get a black marble

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3 years ago