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3 years ago

A tub contained 80 gallons

Mathematics

1 answer:

NemiM [27]3 years ago

6 0

Answer:

its 64 because 4x16= 64

Step-by-step explanation:

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-13=-18+w/4 two step equation

liubo4ka [24]

Answer:

w = 20

Step-by-step explanation:

Add 18 on both sides:

$\frac{w}{4} =5$

Multiply by 4 on both sides:

w = 20

7 0

3 years ago

Read 2 more answers

You can't solve this lol 70 times or divide by what gives you 100? <3

Korvikt [17]

Answer:

1 .... 30 remainder??

Step-by-step explanation:

6 0

3 years ago

The digits 1, 2, 3, and 4 are used to make a 3-digit number. Each digit can be repeated. What is the total number of 3-digit num

KiRa [710]

I think the answer is 10

5 0

3 years ago

Find the area of the surface correct to four decimal places by expressing the area in terms of a single integral and using your

love history [14]

If we substitute $x=r\cos\theta$ and $y=r\sin\theta$ , we get $r^2=x^2+y^2$ , so that

$z=\cos(x^2+y^2)=\cos(r^2)$

which is independent of $\theta$ , which in turn means the surface can be treated like a surface of revolution.

Consider the function $f(t)=\cos(t^2)$ defined over $0\le t\le1$ . Revolve the curve $C$ described by $f(t)$ about the line $t=0$ . The area of the surface obtained in this way is then

$\displaystyle2\pi\int_C\mathrm dS=2\pi\int_0^1\sqrt{1+f'(t)^2}\,\mathrm dt$

$=\displaystyle2\pi\int_0^1\sqrt{1+(-2t\sin(t^2))^2}\,\mathrm dt$

$=\displaystyle2\pi\int_0^1\sqrt{1+4t^2\sin^2(t^2)}\,\mathrm dt\approx7.4144$

4 0

3 years ago

Find the value of x.

wlad13 [49]

Answer: The letter x is often used in algebra to mean a value that is not yet known. it is called a variable or somethings an unknown in x + 2 = 7, x is a variable but we can work out its value if you try a variable does not have to be x though it could be y or w, or any letter, name or symbol. See: variable

Step-by-step explanation: and that's it! have a yummy cookie day! ◑﹏◐

3 0

3 years ago