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Yuliya22 [10]
4 years ago
11

Given that the area of a rectangle is 36 square cm and its length is 12 cm. Find the

Mathematics
2 answers:
Alex_Xolod [135]4 years ago
8 0

Answer:

is 3

Step-by-step explanation:

because to find the area for a ractangle you have to multiply LxW and 12x3=36

SSSSS [86.1K]4 years ago
4 0
Answer: Width is 3 cm

Explanation: since the formula for area of a rectangle is length*width= area, plug the numbers in. 12*x=36. So, what times twelve equals 36? 3! You can also view it like this, 36/12, which would also get you three.
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[Calculus] particle at rest question. Show steps, please!
Vinvika [58]

Answer:

E

Step-by-step explanation:

We are given that a particle's position along the x-axis at time <em>t </em>is modeled by:

x(t)=2t^3-21t^2+72t-53

And we want to determine at which time(s) <em>t</em> is the particle at rest.

If the particle is at rest, this suggests that its velocity at that time is 0.

Since are we given the position function, we can differentiate it to find the velocity function.

So, by differentiating both sides with respect to <em>t</em>, we acquire:

\displaystyle x^\prime(t)=v(t)=\frac{d}{dt}\big[2t^3-21t^2+72t-53\big]

Differentiate. So, our velocity function is:

v(t)=6t^2-42t+72

So, we will set the velocity to 0 and solve for <em>t</em>. Hence:

0=6t^2-42t+72

We can divide both sides by 6:

0=t^2-7t+12

Factoring yields:

(t-3)(t-4)=0

By the Zero Product Property:

t-3\text{ and } t-4=0

Hence:

t=3\text{ and } t=4

Therefore, at the 3rd and 4th seconds, the velocity of the particle is 0, impling that the particle is at rest.

Our answer is E.

6 0
3 years ago
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
Tresset [83]

The measure of the angle R is m \angle R=69.4

Explanation:

It is given that the lengths of the triangle are PQ = 8 and QR = 3

To find the angle of R using the opposite and adjacent side, we shall use the tangent formula.

\tan \theta=\frac{o p p}{a d j}

where opp = 8 and adj = 3

Thus, substituting these values in the formula, we get,

\tan \theta=\frac{8}{3}

Multiplying both sides by tan^{-1}, we get,

\theta=tan^{-1} (\frac{8}{3})

Dividing, we get,

\theta=69.44

Rounding off to the nearest tenth, we have,

\theta=69.4

Thus, the measure of the angle R is m \angle R=69.4

7 0
3 years ago
Be precise A recipe calls for 5/8 cup of brown sugar and 2/3 cup of flour. Wich ingredient has the greater amount
Inga [223]

Answer:

2/3

Step-by-step explanation:

2/3 of a cup is approx. 150 grams, 5/8 a cup is approx. 140 grams.n

4 0
4 years ago
Which choice names a radius of circle F?
Kobotan [32]

Line FE is a radius of circle F. A radius is a line that connect to the center point ad is half of the circles diameter.

and

Line FC is a radius not a chord. A chord is a line within a circle that connects at two different point.

Hope this helps! Mark as Brainliest please! :)))

7 0
4 years ago
Plzzzz help me!!! Urgent!!!
Eddi Din [679]

I don't know if this is right

7 0
3 years ago
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