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3 years ago

Yeah I'm failing math, can you pls help?

Mathematics

1 answer:

belka [17]3 years ago

3 0

Step-by-step explanation:

Area=9π

r=3

Circumference=6πcm

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You travel from point A to point B in a car moving at a constant speed of 70 km/h. Then you travel the same distance from point

tankabanditka [31]

Answer:

Yes, the average speed for the entire trip from A to C is equal to $80\frac{km}{h}$

Step-by-step explanation:

The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time. For the special case of straight line motion in the x direction, the average velocity takes the form:

$V_a_v_e_r_a_g_e=\frac{x_2-x_1}{t_2-t_1}=\frac{Δx}{Δt}$

If the beginning and ending velocities for the motion are known, and the acceleration is constant, the average velocity can also be expressed as:

$V_a_v_e_r_a_g_e=\frac{V_1+V_2}{2}$

We Know that:

$V_1=70\frac{km}{h} \\\\V_2=90\frac{km}{h}$

Replacing the values:

$V_a_v_e_r_a_g_e=\frac{70+90}{2} =\frac{160}{2}=80\frac{km}{h}$

5 0

3 years ago

Mark is solving the equation 4x2 + 2x = -9 using the quadratic formula.

Masteriza [31]

4x^2 + 2x = -9
4x^2 + 2x + 9 = 0

remember that the form of quadratic is ax^2 + bx + c = 0

so
a = 4
b = 2
c = 9

6 0

3 years ago

.0417 DIVIDED 100 PLZ HELP (⊙_⊙)

nikklg [1K]

Answer: 0.000417

Hope this helps can u give me brainliest

Step-by-step explanation:

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3 years ago

Convert: 3 ½ mi = ____ ft.

just olya [345]

Answer:

3.5 mi = 18480 ft

Step-by-step explanation:

There are 5,280 feet for every one mile. Because there are 3.5 mile, you would multiply 5,280 x 3.5, getting 18480 feet.

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3 years ago

Read 2 more answers

Find a function ω(x) such that the function f(x) = sin(ω(x)) has the roots at π, π2

atroni [7]

So, I came up with something like this. I didn't find the final equation algebraically, but simply "figured it out". And I'm not sure how much "correct" this solution is, but it seems to work.

$f(x)=\sin(\omega(x))\\\\f(\pi^n)=\sin(\omega(\pi^n))=0, n\in\mathbb{N}\\\\\\\sin x=0 \implies x=k\pi,k\in\mathbb{Z}\\\Downarrow\\\omega(\pi^n)=k\pi\\\\\boxed{\omega(x)=k\sqrt[\log_{\pi} x]{x},k\in\mathbb{Z}}$

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3 years ago

Yeah I'm failing math, can you pls help?​

Yeah I'm failing math, can you pls help?