1 year ago

I need an answer!! (marking as brainliest)

Mathematics

1 answer:

irina1246 [14]1 year ago

5 0

Answer: I hope this helps.

Step-by-step explanation:

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1-sin60÷cos60=1-Tan30÷1+Tan30

ipn [44]

Step-by-step explanation:

LHS=(1-sin60)/cos60

=(1-√3÷2)/1÷2

=2(1-√3÷2)

=2-√3

RHS=(1-tan30)/(1+tan30)

={1-(1÷√3)}/{1+(1÷√3)}

={(√3-1)/√3}/{(√3+1)/√3}

=(√3-1)/(√3+1)

={(√3-1)(√3-1)}/{(√3+1)(√3-1)}

=(3-√3-√3+1)/(3-1)

=(4-2√3)/2

=2-√3

Therefore LHS=RHS

8 0

3 years ago

A satellite dish has cross-sections shaped like parabolas. The receiver is located 13 inches from the base along the axis of sym

horsena [70]

Answer:

Depth = 3.3 inches

Step-by-step explanation:

Given that the shape of the satellite looks like a parabola

The equation of parabola is given as follows

$x^2=4\times a\times y$

Where

a= 13

Therefore

$x^2=4\times 13\times y$

$x^2=52\times y$

Lets take (13 , y) is a

Now by putting the values in the above equation we get

$13^2=52\times y$

$y=\dfrac{13^2}{52}=3.25$

y=3.25 in

Therefore the depth of the satellite at the nearest integer will be 3.3 inches.

Depth = 3.3 inches

7 0

3 years ago

Can you please help me with 3 and 4

Otrada [13]

Number 3 is 1:3 but I don't know what 4 is I can't see the whole problem

3 0

3 years ago

Help me please !!! I DONT KNOW WHAT TO PUT PLS HELP ME

Genrish500 [490]

I believe it is congruent

7 0

3 years ago

First step for solving x²+2x-11=4

fenix001 [56]

Answer:

subtract 4 on both side.

5 0

3 years ago

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