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Georgia [21]
3 years ago
5

Which of the following distances round to 4 m if we're rounding to the nearest meter?

Mathematics
1 answer:
jeka57 [31]3 years ago
7 0
3 & 3
Can someone help me with this

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What value of x makes this statement true?<br><br> 3x = 2x+12
saul85 [17]

Answer:

x=12

Step-by-step explanation:

3x=2x+12

3x-2x=12

x=12

4 0
3 years ago
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A swimming pool is being drained so it can be cleaned. The amount of water in the pool is changing according to the función f(t)
TiliK225 [7]

Answer:

0 ≤ t ≤ 5.

Step-by-step explanation:

In the function f(t), t is the independent variable. The domain of f is the set of all values of t that this function can accept.

In this case, f(t) is defined in a real-life context. Hence, consider the real-life constraints on the two variables. Both time and volume should be non-negative. In other words,

  • t \ge 0.
  • f(t) \ge 0.

The first condition is an inequality about t, which is indeed the independent variable.

However, the second condition is about f, the dependent variable of this function. It has to be rewritten as a condition about t.

\begin{aligned} f(t) &\ge 0 &&\text{Assumption} \cr 80000 - 16000\, t& \ge 0 && \text{Definition of} ~ f \cr 80000 & \ge 16000\, t && \begin{aligned}&\text{Add $16000\, t$} \\[-0.5em] & \text{to both sides of the inequality}\end{aligned} \cr 5 &\ge t &&\begin{aligned}&\text{Divide both sides of} \\[-0.5em] & \text{the inequality by $16000$}\end{aligned} \cr t &\le 5 && \text{Flip the inequality}\end{aligned}.

Hence, t ≤ 5.

Combine the two inequalities to obtain the domain:

0 ≤ t ≤ 5.

6 0
2 years ago
A scale factor that is less than 1, but greater than 0 is​
swat32

Since the scale factor is smaller than one (the original), the resulting image is smaller than the original.

Hope this helped, and feel free to ask more questions if needed(:

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V=3.14(r)^2h solve for r
sveticcg [70]
Assuming the h is not in the exponent, R would equal The square root of V over 3.14h 
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If you have $2500 how many board feet can you buy if the cost per board foot is $3.21?
dexar [7]

Answer:

2500÷$3.21 =778.81

just round to the nearest whole number

6 0
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