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2 years ago

MATH HELP PLEASE 50 POINTS

Mathematics

2 answers:

Tamiku [17]2 years ago

7 0

This is my fav um...
a is 180
B and C are acute
A is obtuse
what are the anwers choices

Illusion [34]2 years ago

4 0

To find the length of a, you should use the Law of Cosines

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Find the equation of the line that is parallel and passes through the point (9,6) find the equation of the line perpendicular

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Any line parallel to this line can be written as y=-2/3x+c and passes through (9,6).thus 6=-2/3(9)+c.c-6=6.c=12.equation is y=-2/3x+12.

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3 years ago

Can Someone tell me how to do this?

Veronika [31]

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3 years ago

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A shipping service restricts the dimensions of the boxes it will ship for a certain type of service.

Mandarinka [93]

Answer:

Then the answer is option a

a. 0<x $\leq$ 10

Step-by-step explanation:

perimeter + height is less than 130 inches.

If height is 60 inches.then perimeter left is 70 inches.

If perimeter was more than 70 inches then perimeter 60 more than the height would be more than 130.

perimeter of rectangle is

It has two widths and two lengths because that's what rectangles do.

width of base "x"

Then the length is 2.5x

perimeter = 2 width + 2 length

= $2(x) + 2(2.5x)$

= 2x + 5x

= 7x

but perimeter can't be more than 70 inches.

So x can't be more than 10 inches because if x was more than 10 inches, then 7x which is perimeter would be more than 70 inches.

$2x + 2(2.5x) + 60 \leq 130$

7x + 60 ≤ 130

7x ≤ 70

x ≤ 10

Then the answer is option a

a. 0<x≤10

3 0

3 years ago

All three sides of a triangle are initially 5.0 long. One of the triangle's sides is oriented horizontally. The triangle is scal

zlopas [31]

Answer:

h = 3.62

Step-by-step explanation:

First, as both triangles have the same angles we can use the relationship of areas and sides corresponding to similar triangles as follows:

$relation\ between\ areas=( relation\ between\ sides)^2\\\frac{0.7A}{A}=(\frac{s}{5})^2\\s= 5\sqrt0.7= 4.18$

Now we know that the new triangle has sides of 4.18. Then, as these triangles are equilateral we can use the Pythagorean Theorem to find the height:

$4.18^2=h^2+(\frac{4.18}{2})^2\\h=\sqrt (4.18^2-2.09^2)=3.62 m\\h= 3.62$

Finally the height of this new triangle is 3.62 cm

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2 years ago