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3 years ago

Consider △ABC.

Mathematics

2 answers:

VashaNatasha [74]3 years ago

6 0

Answers:

∠A=45° & ∠B=45°

Step-by-step explanation:

In triangle ABC, all angles are less than 180° but their sum is 180°

For the trigonometric statements

sin(A)=cos(B)

sin(B)=cos(A)

These are true when these angles that are A and B are equal and on these angles the sin and cos value must be same.

Hence, both angles are of 45°

Marysya12 [62]3 years ago

6 0

Answer:

For the trigonometric statements

sin(A)=cos(B)

sin(B)=cos(A)

Step-by-step explanation:

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Reason on why xy=uv,uv=tv

blagie [28]

Can you please add the picture with the problem, then I will answer your question ?

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4 years ago

Over what interval is the function differentiable? Y=3/2(x-1)

jolli1 [7]

Answer-

The interval where the function is diffrentiable is

$[-\infty,1)\ \bigcup\ (1,\infty]$

Solution-

The given expression is,

$y=\dfrac{3}{2(x-1)}$

The function will be differentiable where it is continuous and it will not be differentiable, where the function is not continuous.

The function continuous everywhere except at x = 1, because

$\Rightarrow 2(x-1)=0\\\\\Rightarrow x-1=0\\\\\Rightarrow x=1$

at x = 1, its limit does not exist.

Therefore, apart from x=1, this function is differentiable everywhere. The interval will be

$[-\infty,1)\ \bigcup\ (1,\infty]$

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3 years ago

Kayla has a tshirt store. she sold three times as many white tshirts as blue tshirts. she sold a total of 48 tshirts. How many w

SpyIntel [72]

First make the equation:

1. x
2. 3x

x + 3x = 48

Now solve it:
x + 3x = 48
4x= 48
x=12

Now plug in x
1. x = 12
2. 3x = 36

So Kayla sold 12 blue t-shirts and 36 white t-shirts.

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3 years ago

a super fast chess computer can perform 200,000,000 calculations per second how many calculations can it preform in the 3 minute

satela [25.4K]

3×60=180 seconds (60 seconds in 1 minute)
180×200,000,000= 36,000,000,000 calculations

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4 years ago

A pyramid has a square base with side s. The height of the pyramid is that of its side. What is the expression for the volume of

r-ruslan [8.4K]

Answer:

Pyramid Volume = (Area of Base * Height) / 3

height = side

Pyramid Volume = (side * side * side) / 3

Pyramid Volume = (side ^ 3) / 3

That's the answer. I don't know which of your answers equals that.

Pyramid Volume formula located here: http://www.1728.org/volpyrmd.htm

Step-by-step explanation:

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3 years ago