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2 years ago

Please help‼️‼️ Will mark brainliest

Mathematics

1 answer:

DIA [1.3K]2 years ago

4 0

Answer:

Your answer should be: a < 8

Step-by-step explanation:

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What if the inverse of the function f(x)=4x+8

aliya0001 [1]

Here you go, hope I helped.

8 0

3 years ago

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Blank divided by 9 equals 6

Airida [17]

X ÷ 9 = 6

Multiply both sides by 9

x ÷ 9 • 9 = 6 • 9

x = 54

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2 years ago

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A rock is thrown up from the ground at a velocity of 84 feet per second. The formula h = -16t2 + 84t gives the rock's height in

kenny6666 [7]

Answer:

h = 110.24 m

Step-by-step explanation:

It is given that,

A rock is thrown up from the ground at a velocity of 84 feet per second. The formula $h = -16t^2 + 84t$ gives the rock's height in feet after t second.

We need to find the maximum height of the rock. For maximum height put $\dfrac{dh}{dt}=0$

So,

$\dfrac{d( -16t^2 + 84t)}{dt}=0\\\\-32t+84=0\\\\t=\dfrac{84}{32}\\\\t=2.62\ s$

Put t = 2.62 s in the equation of height. So,

$h = -16(2.62)^2 + 84(2.62)\\\\h=110.24\ m$

So, the maximum height of the rock is 110.24 m.

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3 years ago

Use the distributive property to remove the parentheses in the following expression 6(m+5)=

coldgirl [10]

6m+30 is the answer.
Multiply 6 and m and you get 6m.
Multiply 6 and 6 and you get 30.
6m+30

5 0

3 years ago

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Find the line integral of f⃗ (x,y,z)=x3i⃗ +y2j⃗ +zk⃗ along the line segment c from the origin to the point (2,3,9).

AlladinOne [14]

The path $\mathcal C$ can be parameterized by the vector-valued function,

$\mathbf r(t)=t(2\,\mathbf i+3\,\mathbf j+9\,\mathbf k)$

where $0\le t\le1$ . Then

$\mathrm d\mathbf r=(2\,\mathbf i+3\,\mathbf j+9\,\mathbf k)\,\mathrm dt$

The line integral reduces to

$\displaystyle\int_{\mathcal C}\mathbf f\cdot\mathrm d\mathbf r=\int_{t=0}^{t=1}(x(t)^3\,\mathbf i+y(t)^2\,\mathbf j+z(t)\,\mathbf k)\cdot(2\,\mathbf i+3\,\mathbf j+9\,\mathbf k)\,\mathrm dt$

$=\displaystyle\int_{t=0}^{t=1}((2t)^3\,\mathbf i+(3t)^2\,\mathbf j+9t\,\mathbf k)\cdot(2\,\mathbf i+3\,\mathbf j+9\,\mathbf k)\,\mathrm dt$

$=\displaystyle\int_{t=0}^{t=1}(16t^3+27t^2+81t)\,\mathrm dt=\frac{107}2$

7 0

2 years ago