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maxonik [38]
4 years ago
5

A class has 18 students. the teacher asks how many students in the class have pets and find 5/9 of students have pets. how many

students have pets
Mathematics
1 answer:
adell [148]4 years ago
7 0
Here is the answer to the given question above. Given that there are a total of 18 students and 5/9 of the students have pets, let us divide 18 by 9 to see how many students have pets. So the answer would be 2. Since it is 5 out of 9, we multiply 2 by 5 and we get 10. Therefore, the answer is 10 students. Hope this answer helps.
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dusya [7]

Answer:

9)   shifted down 2

10)  shifted right 4

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Step-by-step explanation:

6 0
3 years ago
1.688 × 10⁴ = write in standard format​
Neporo4naja [7]

Answer

16880

Step-by-step explanation:

10x10x10x10=10,000

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7 0
3 years ago
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Find, correct to four decimal places, the length of the curve of intersection of the cylinder 16x2 + y2 = 16 and the plane x + y
lubasha [3.4K]

First find a parameterization for the curve of intersection.

Given the equation of a cylinder, a natural choice for a parameterization would be one utilizing cylindrical coordinates. Here,

16x^2+y^2=16\implies x^2+\left(\dfrac y4\right)^2=1

which suggests we could use

\begin{cases}x(t)=\cos t\\y(t)=4\sin t\\z(t)\end{cases}

with 0\le t\le2\pi, and we get z(t) from the equation of the plane,

x+y+z=12\implies z(t)=12-x(t)-y(t)=12-\cos t-4\sin t

Now use the arc length formula:

\displaystyle\ell=\int_0^{2\pi}\sqrt{\left(\dfrac{\mathrm dx}{\mathrm dt}\right)^2+\left(\dfrac{\mathrm dy}{\mathrm dt}\right)^2+\left(\dfrac{\mathrm dz}{\mathrm dt}\right)^2}\,\mathrm dt

\displaystyle\ell=\int_0^{2\pi}\sqrt{\sin^2t+16\cos^2t+(\sin t-4\cos t)^2}\,\mathrm dt

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4 0
4 years ago
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
ozzi

Answer:

\sf x=\boxed{18.21}

Step-by-step explanation:

Assuming this is a right triangle.

<u>Trigonometric ratios</u>

\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}

where:

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  • O is the side opposite the angle
  • A is the side adjacent the angle
  • H is the hypotenuse

Given:

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  • O = x
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\implies \sf \tan(35^{\circ})=\dfrac{x}{26}

\implies \sf x=26\tan(35^{\circ})

\implies \sf x=18.20539599...

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5 0
3 years ago
Please help!! 10 points for it
balu736 [363]

Answer:

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Step-by-step explanation:

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3 years ago
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