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3 years ago

3. If there are eighty-eight students hanging

Mathematics

2 answers:

Andreyy893 years ago

7 0

Answer:i guess it is 89.

Step-by-step explanation:

if there are 88 students hanging around "his" desk then even the person whose desk it was should be counted

Sliva [168]3 years ago

7 0

I feel like it may be 89 cause 88 including the “him”

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The graph shows how the length of a buildings shadow at a certain time of day is related to the height of the building.

Artyom0805 [142]

A. the graph represents a relation because it contains ordered pairs (x,y). It is also a function because there are no repeating x values.

B. (0,0) (8,6)
slope = (6 - 0 ) / (8 - 0) = 6/8 = 3/4
so ur equation is : y = 3/4x or f(x) = 3/4x <===

C. the variable x represents the height of the building and the variable y (or f(x)) represents the total length of the shadow

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2 years ago

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Solve for x in the given interval. sec x= -2√3/3, for π/2 ≤x≤π

drek231 [11]

Answer:

b. $x=\frac{5\pi}{6}$

Step-by-step explanation:

The given function is

$\sec x=-\frac{2\sqrt{3} }{3},\:\:for\:\:\frac{\pi}{2}\le x \le \pi$

Recall that the reciprocal of the cosine ratio is the secant ratio.

This implies that;

$\frac{1}{\cos x}=-\frac{2\sqrt{3} }{3}$

$\Rightarrow \cos x=-\frac{3}{2\sqrt{3} }$

$\Rightarrow \cos x=-\frac{\sqrt{3}}{2}$

We take the inverse cosine of both sides to obtain;

$x=\cos^{-1}(-\frac{\sqrt{3}}{2})$

$x=\frac{5\pi}{6}$

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3 years ago

marcel's plane travels 3.345 meters salvadors plane travels 3.35 meters .jennifers plane travels 3.3 meters baced on measurement

KonstantinChe [14]

To see, which plane traveled farthest of shortest distance we have to write all the numbers in the same accurance
3.345
3.35 => 3.350
3.3 => 3.300
The longest is 3.35
The shortest is 3.3

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3 years ago

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Write the standard form of the equation of a circle with radius 10 and center (9,3)

gladu [14]

Answer:

$(x-9)^{2}+(y-3)^{2} =100$

Step-by-step explanation:

The standard form formula for a circle equation is $(x-h)^{2}+(y-k)^{2} =r^{2}$ , where (h,k) represents the center of the circle, and r represents the radius.

r=10

(h,k)= (9,3)

$(x-h)^{2}+(y-k)^{2} =r^{2}$

$(x-9)^{2}+(y-3)^{2} =10^{2}\\(x-9)^{2}+(y-3)^{2} =100$

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2 years ago

Which values are solutions to the inequality below? Check all that apply. Sqrt x > 8

Sophie [7]

Answer:

64 is the right answer of your question

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2 years ago