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2 years ago

For which value of x does each expression make sense

Mathematics

1 answer:

Vitek1552 [10]2 years ago

6 0

$\text{If you want the domain of this function then it is}~x\leq 0 ~ \text{or} ~ (-\infty ,0]$

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Which two points on the number line are opposites?

Nutka1998 [239]

Answer:

b and c

Step-by-step explanation:

pls mark me brainliest

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3 years ago

A 5kg book rests on a table. How much force is it exerting on the table?

Yuri [45]

Answer:

49N

Step-by-step explanation:

a= 9.8

m= 5kg

F=?

F=ma

F=(5)(9.8)

F= 49 Newtons

4 0

3 years ago

Let g(x)=4x +9 and h(x)=x+2. Find the expression.<br> (h◦g)(x)

hammer [34]

So you plug in g(x) for x in h(x)
Since g(x) = 4x + 9, substitution that in
4x + 9 + 2
4x + 11

Solution: 4x + 11

6 0

2 years ago

Read 2 more answers

the table below shows relative frequencies of players outcomes for two teams one player will be randomly selected to be interviw

Maslowich

Answer:

Tationia Rolon

Step-by-step explanation:

I think it will be letter b because the the amount that game lost is greater than the total of wins

4 0

3 years ago

Given the relationship x2 + 3y2 =12, with y > 0 and dx, dt = 2 units/min., find the value of dy, dt at the instant y = 1 unit

matrenka [14]

$\bf x^2+3y^2=12\implies \stackrel{chain~rule}{2x\cfrac{dx}{dt}}+3 \stackrel{chain~rule}{\left(2y\cfrac{dy}{dt}\right)}=0
\\\\\\
2x\cfrac{dx}{dt}+6y\cfrac{dy}{dt}=0
\implies 
6y\cfrac{dy}{dt}=-2x\cfrac{dx}{dt}\implies \cfrac{dy}{dt}=\cfrac{-2x\frac{dx}{dt}}{
6y\frac{dy}{dt}}
\\\\\\
\boxed{\cfrac{dy}{dt}=-\cfrac{x\frac{dx}{dt}}{3y}}\\\\
-------------------------------$

$\bf \textit{now, when y = 1, what is \underline{x}?}\qquad x^2+3y^2=12\implies x^2+3(1)^2=12
\\\\\\
x^2=9\implies x=\sqrt{9}\implies x=3\\\\
-------------------------------\\\\
\begin{cases}
y=1\\
x=3\\
\frac{dx}{dt}=2
\end{cases}\implies \cfrac{dy}{dt}=-\cfrac{3\cdot 2}{3\cdot 1}\implies \cfrac{dy}{dt}=-2$

7 0

3 years ago