Question 4 Which expression represents f-(x) if f(x) = 11 – 10x ?

Mathematics

1 answer:

EleoNora [17]3 years ago

8 0

Answer:

hhuhhuhhhuhh

Step-by-step explanation:

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Write an algebraic expression for the following: Four less than five times a number

eduard

5n-4 is 4 less than 5 times a number

5 0

3 years ago

What is 52,437 rounded to the nearest thousand?

saul85 [17]

<h3>What is 52,437 rounded to the nearest thousand?</h3>

Answer: 52,000

Step-by-step explanation:

We have to look at the number in the hundredth place and if it is less than five we round down, but if it is five or more, we round up.

In this case, since we have 52,437, the number of hundreds is 4, so we have to <u>round down</u>. 52,000.

$\textit{\textbf{Spymore}}$

7 0

4 years ago

An object falls from a position of rest and

kumpel [21]

Answer:

About 4.1323 meters.

Step-by-step explanation:

We can use the following kinematic equations:

$\displaystyle v_f = v_0 + at \text{ and } \Delta d = v_0 t + \frac{1}{2} at^2$

We want to determine the distance the object has dropped after falling from rest and reaching an instantenous speed of 9 m/s.

We are given that the acceleration due to gravity is 9.8 m/s².

Using this fact and the first equation, find the time for which it took the object to reach 9 m/s. Note that the initial velocity is 0 m/s since the object started from rest.

$\displaystyle \begin{aligned} v_f = v_0 + at \\ \\ (9\text{ m/s}) & = (0\text{ m/s}) + (9.8\text{ m/s$^2$})t \\ \\ 9\text{ m/s} & = (9.8 \text{ m/s$^2$})t \\ \\ t &\approx0.9184 \text{ s} \end{aligned}$

To find how far the object dropped, we can use the second equation:

$\displaystyle\begin{aligned} \Delta d & = v_0 t + \frac{1}{2} at^2 \\ \\ & = (0\text{ m/s})(0.9184 \text{ s}) + \frac{1}{2}(9.8 \text{ m/s$^2$})(0.9184 \text{ s})^2 \\ \\ & = 4.1323 \text{ m} \end{aligned}$