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3 years ago

A piece of metal is cut in the shape of a triangle what is the area of the piece of metal

Mathematics

1 answer:

Kruka [31]3 years ago

3 0

It depends on which triangle it actually is

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Chloe spent $69 and now has no money left. She had before her purchase. She had $ before her purchase. can you please help me wi

max2010maxim [7]

Answer:

$69

Step-by-step explanation:

Given

$Purchase = \$69$

$Amount\ Left = \$0$

Required

Determine the cash before purchase

To get the her amount before the purchase, we simply add both given parameters together.

This is done as follows;

$Amount = Amount Left + Purchase$

Substitute 0 for Amount Left and 60 for Purchase

$Amount = \$0 + \$69$

$Amount = \$69$

Hence, she had $69 before the purchase

6 0

2 years ago

An 85-foot rope from the top of a tree house to the ground forms a 45 degree angle of elevation from the ground. How high is the

Feliz [49]

Answer:

$\boxed{h=60.1\ ft }$

Step-by-step explanation:

Right Triangles

They have a right angle (90°) and a longer side called the hypotenuse opposite to the right angle. The legs and the hyponetuse form two angles that must sum 90°, and they comply:

$\displaystyle sin\ \alpha=\frac {opp-leg}{hypotenuse}$

Where opp-leg is the opposite leg to $\alpha.$

The rope from the top of a tree house is 85-foot long. It's the hypotenuse (L) of the triangle it forms with the ground and the tree. The angle of 45° is opposite to the height of the tree (h).

$\displaystyle sin\ \alpha=\frac {h}{L}$

We can solve for h

$h=L\ sin\alpha =85\ sin\ 45^o$

$\boxed{h=60.1\ ft }$

6 0

3 years ago

Find the value of x and y Please help me. Thank you

STatiana [176]

Answer:

Step-by-step explanation:

let each angle=A

A+A+A=180

3A=180

A=180/3=60°

as the angles are equal so sides are equal.

16+y=46

y=46-16=30

applying sine formula

$\frac{30}{sin z} =\frac{46}{sin~80} \\sin~z=\frac{30}{46} \times ~sin~80=\frac{15}{23} \times sin ~80\\z=sin^{-1}( \frac{15}{23} \times sin ~80) \approx~39.96^\circ \approx40^\circ$