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3 years ago

11

Write the ration for sin A and cos A

1 answer:

Archy [21]3 years ago

6 0

$sine=\dfrac{opposite}{hypotenuse}\\\\cosine=\dfrac{adjacent}{hypotenuse}$

$\sin A=\dfrac{3}{5},\ \cos A=\dfrac{4}{5}$

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A particular fruit's weights are normally distributed, with a mean of 774 grams and a standard deviation of 31 grams.

Paha777 [63]

Step-by-step explanation:

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7 0

3 years ago

Someone please help me on this!

Alexxx [7]

Answer & Step-by-step explanation:

This can be proven with the SAS theorem (side-angle-side)

With a perpendicular bisector, the line it bisects is cut directly in half. This creates two equal sides:

$GJ=IJ$

and it creates two 90° angles:

∠ $GJH=$ ∠ $IJH$

And because of the reflexive property of congruence:

$JH=JH$

Side-Angle-Side.

:Done

6 0

3 years ago

Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.

jeka94

Answer:

$x=4+2\sqrt{3}$

$x=4-2\sqrt{3}$

Step-by-step explanation:

<u>Completing the square</u>

when $ax^2+bx+c=0$

Given equation:

$3x^2-24x+40=28$

Subtract 40 from both sides:

$\implies 3x^2-24x=-12$

Divide both sides by 3:

$\implies x^2-8x=-4$

Add the square of half the coefficient of $x$ to both sides:

$(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

$\implies x^2-8x+16=-4+16$

Factor the left side and simplify the right side:

$\implies (x-4)^2=12$

Square root both sides:

$\implies x-4=\pm\sqrt{12}$

Add 4 to both sides and simplify the radical:

$\implies x=4\pm\sqrt{4 \cdot 3}$

$\implies x=4\pm\sqrt{4}\sqrt{3}$

$\implies x=4\pm2\sqrt{3}$

5 0

1 year ago

Steven earns extra money babysitting. He charges $31.25 for 5 hours and $50 for 8 hours..

Maru [420]

$6.25 × h = c
h = hours, c = total cost

$31.25 for 5 hours. $6.25 per hour

$50 for 8 hours. $6.25 per hour

3 0

3 years ago

I actually literally dont pay attention alot in class, so i have no clue what this means, any help?

kaheart [24]

Answer:

pay attention in class

Step-by-step explanation:

936

-3

-------

=312

-------

so its 3.12

6 0

3 years ago

Read 2 more answers