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3 years ago

11

a science center has v visitors on the first day of an special exhibit and 200 visitors on the second day what is the average nu

mber of visitors per day over the two days

1 answer:

Luda [366]3 years ago

6 0

(V + 200) divided by 2= average of the 2 days

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A triangle has side lengths of 39, 80, and<br> 87. Is this triangle a right triangle?

iren2701 [21]

Answer:

Step-by-step explanation:

39²=1521

80²=6400

39²+80²=1521+6400=7921

87²=7569

7921≠7569

so it is not aright angled triangle.

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2 years ago

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Find the measure of the missing angle *

lubasha [3.4K]

Answer:

21°

Step-by-step explanation:

we know that every single triangle has to equal 180°

we have all 3 angles 90° 34° 35° which equal 159°

so we take 180°-159° and your answer is 21°

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3 years ago

Write an equation of the line parallel to y=8x-1 that contains the point (-6,2)

s2008m [1.1K]

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3 years ago

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How many solutions does the equation sin(4x)= 3/4?

MAVERICK [17]

$sin(4x)= \dfrac{3}{4}$

$4x=sin^-^1( \dfrac{3}{4}), \pi -sin^-^1( \dfrac{3}{4})$

<span>Since sin is a periodic function, add the periodicity.
</span>
$4x=2\pi n+sin^-^1 ( \dfrac{3}{4} ) ,nEZ 

$

$4x=2\pi n-sin^-^1 ( \dfrac{3}{4} ) ,nEZ$

$x= \dfrac{2\pi n+sin^-^1 ( \dfrac{3}{4} ) }{4}, nEZ$

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3 years ago

If the leg of a 45-45-90 triangle is 20in long, what is the perimeter of the triangle

Sindrei [870]

Yo sup??

Lenght of two side will be equal to 20 in as its an isoceles triangle.

The third side will be

x^2=b^2+h^2 (by pythagoreas theorem)

=9^2+9^2

x=9√2 in

Therefore the perimeter is = 9+9+9√2

=9√2(√2+1) in

Hope this helps.

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3 years ago