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4 years ago

Write an expression for this phrase. 2. A third of a number n

Mathematics

1 answer:

Leona [35]4 years ago

5 0

A third of a number n

= $\frac{1}{3} * n = \frac{1}{3} n = \frac{n}{3}$

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Pls help <br> Is this triangle acute, right or obtuse?

Ilia_Sergeevich [38]

Probably between obtuse angle or triangle because sometimes they trick you

But I'm not 100 percent sure

5 0

3 years ago

Read 2 more answers

Which value in the set {12.16,44,52} is a solution of the equation 4g= 48? Show your work. ANSWER ASAP

Alexus [3.1K]

Answer:

The answer is 12.

Step-by-step explanation:

If you divide 48 by 4 will give you 12 and it's correct because when you multiply 4 times 12 give you 48. You can also use the solution of the picture.

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3 years ago

assume that tge volume,v, of a sphere is expanding at a rate of 100 inches cubex per minute, the volume of a sphere is given by

Zielflug [23.3K]

$\bf \textit{volume of a sphere}\\\\
V=\cfrac{4}{3}\pi r^3\\\\
-----------------------------\\\\
\cfrac{dv}{dt}=\cfrac{4\pi }{3}\cdot 3r^2\cfrac{dr}{dt}\implies \cfrac{dv}{dt}=4\pi r^2\cfrac{dr}{dt}
\\\\\\
\cfrac{\frac{dv}{dt}}{4\pi r^2}=\cfrac{dr}{dt}\qquad 
\begin{cases}
\frac{dv}{dt}=100\\\\
r=8
\end{cases}\implies \cfrac{100}{4\pi 8^2}=\cfrac{dr}{dt}$

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3 years ago

Given rectangular prism ABCD. Choose all of the terms that best describe each of the sets of lines or points. Points D, G and J

Yuki888 [10]

Answer:

Two points are collinear when they lie on the same line. Points are collinear but not lines. Rather when two lines lie on the same plane we say they are coplanar.

Hence, line AB and CD are NOT collinear, so they are noncollinear and they are coplanar.

Two or more lines are said to be intersecting, when the lines meet at some point, when lines are not intersecting they are said to be parallel.

Recall that one of the properties of a rectangle is that opposite sides are parallel.

Notice that line AB and CB are the opposite sides of the rectangle ABCD.

Thus, line AB and CD are not intersecting but are parallel.

Therefore, the terms that best describe lines AB and CD are

parallel

noncollinear

coplanar

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

If a bird is on the ground, 7 ft away from a 10 ft tall tree, then what is the angle (to the

iren2701 [21]

Answer:

The angle is 55°

Step-by-step explanation:

To find the angle at which a bid is looking up on top of a tree that is 10feet tall if the bird is on the ground 7 feet away from the tree, we will follow the steps below:

we will use trigonometric ratio to find the angle

SOH CAH TOA

sinФ = opposite / hypotenuse

cosФ = adjacent / hypotenuse

tanФ = opposite /adjacent

from the diagram below, opposite = 10 feet and adjacent = 7 feet

the best trig.ratio to use is tan

tanФ = opposite /adjacent

tanФ = 10 /7

tan Ф =1.42857

to get the value of Ф, we will take the tan⁻¹ of both-side

tan⁻¹ tan Ф = tan⁻¹ 1.42857

Ф= tan⁻¹ 1.42857

Ф≈55°

Therefore, the angle is 55°

4 0

4 years ago