3 years ago

Find the value of X:

Mathematics

1 answer:

tia_tia [17]3 years ago

8 0

Answer:

Your answer is

31.17

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Step-by-step explanation:

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Thanks, & yes how did you get that

soldier1979 [14.2K]

Hello <span>Vmcdowell43

The word Thanks is a shorter way of saying Thank you. Many people use it because it is easier.

The word yes is a simple way to agree with something.

Hope that helps!
-Chris</span>

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3 years ago

At noon, ship A is 50 km west of ship B. Ship A is sailing south at 10 km/h and ship B is sailing north at 20 km/h. How fast is

Lena [83]

So hmmm check the picture below

so, we're looking for dr/dt then at 4:00pm or 4 hours later

now, keep in mind that, the distance "x", is not changing, is constant whilst "y" and "r" are moving, that simply means when taking the derivative, that goes to 0

$\bf r^2=x^2+y^2\implies 2r\cfrac{dr}{dt}=0+2y\cfrac{dy}{dt}\implies \cfrac{dr}{dt}=\cfrac{y\frac{dy}{dt}}{r}\quad 
\begin{cases}
\cfrac{dy}{dt}=30\\
r=130\\
y=120
\end{cases}
\\\\\\
\cfrac{dr}{dt}=\cfrac{120\cdot 30}{130}$

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3 years ago

If a = -3, find the value of 3a²<br><br>

guajiro [1.7K]

Step-by-step explanation:

given

a = - 3

3a² = 3 * ( -3) ²

= 3 * 9

= 27

The value of 3a² is 27.

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3 years ago

True or false: “If a positive integer is divisible by both 2 and 3, then it is divisible by 12.”

Julli [10]

False because 6 is divisible by 2 and 3, but not 12

4 0

3 years ago

Landon is building new bookshelves for his bookstore's new mystery section. Each shelf can hold 33 books. There are 1,221 myster

kvasek [131]

Answer:

Step-by-step explanation:

Landon is building new bookshelves for his book store

Each shelf can hold 33 books

There are 1221 mystery books

Therefore the number of shelves he will need to build can be calculated as follows

= 1221/33

= 37

Hence Landon will need to build 37 shelves

6 0

3 years ago