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3 years ago

PLEASE HELP! I WILL MAKE YOU BRAINIST!

Mathematics

1 answer:

Rudiy273 years ago

4 0

I think b or c someone correct me if I’m wrong

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I could really use some help!!!!

Phantasy [73]

Answer:

AD ║ BC

Third option

Step-by-step explanation:

Parallelogram the opposite sides are parallel.

Answer

AD ║ BC

4 0

3 years ago

Please help and step by step please

alexdok [17]

Answer:

Step-by-step explanation:

$cos\theta=\frac{(adjacent\ side)}{(hypotenuse)}\\ \\ cos43^o=\frac{34}{x}\\ \\ x=\frac{34}{cos43^o}\\ \\ x\approx 46.5$

6 0

3 years ago

I need help. How do I do this??

Ivenika [448]

First of all, you figure out that -4 < 3, so you use the first function definition. Then you put -4 wherever you see x.
.. f(-4) = (-4)^2 -5
.. = 16 -5
.. f(-4) = 11

3 0

3 years ago

A box with a square base and an open top is being constructed out of A cm2 of material. If the volume of the box is to be maximi

viktelen [127]

Answer:

Side length = $\sqrt{\frac{A}{3} }$ cm , Height = $\frac{1}{2} \sqrt{\frac{A}{3} }$ cm , Volume = $\frac{A\sqrt{A}}{6\sqrt{3} }$ cm³

Step-by-step explanation:

Assume

Side length of base = x

Height of box = y

total material required to construct box = A ( given in question)

So it can be written as

A = x² + 4xy

4xy = A - x²

$y = \frac{A - x^{2} }{4x}$

Volume of box = Area x height

V = x² ₓ y

V = x² ₓ ( $\frac{A - x^{2} }{4x}$ )

V = $\frac{Ax - x^{3} }{4}$

To find max volume put V' = 0

So taking derivative equation becomes

$\frac{A - 3 x^{2} }{4} = 0$

A = 3 $x^{2}$

$x^{2}$ = $\frac{A}{3}$

x = $\sqrt{\frac{A}{3\\} }$

put value of x in equation 1

y = $\frac{A - \frac{A}{3} }{4\sqrt{\frac{A}{3} } }$

y = $\frac{2 \sqrt{\frac{A}{3} } }{4 \sqrt{\frac{A}{3} } }$

y = $\frac{1}{2} \sqrt{\frac{A}{3} }$

So the volume will be

V = $x^{2}$ × y

Put values of x and y from equation 2 & 3

V = $\frac{A}{3} (\frac{1}{2} \sqrt{\frac{A}{3} } )$

V = $\frac{A\sqrt{A}}{6\sqrt{3} }$

8 0

4 years ago

Help! Please!

LuckyWell [14K]

This is what i got not forsure if this helped let me know if it did help.
<span> Slope = -378.000/2.000 = -189.000 x-intercept = 0/189 = 0.00000<span> y-intercept = 0/1 = 0.00000</span></span>

8 0

3 years ago