3 years ago

Which equation in point-slope form contains the point (-3,5) and has slope -1?

Mathematics

1 answer:

andrezito [222]3 years ago

3 0

Hello :
equation in point-slope form : y - 5 = -1(x -(- 3))
y - 5 = - (x+3)

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3 years ago

Quadrilateral ABCD is a rectangle. BD = 6x - 14 and AC = 8x - 20. What is BD?

BigorU [14]

Answer:

Step-by-step explanation:

The diagonals are equal length:

$6x - 14 = 8x - 20\\-2x = -6\\x = 3$

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3 years ago

Evaluate the expression below when y = 3. If needed, answer as a fraction or a decimal. y⋅5y+2

Anika [276]

Answer:

-10

Step-by-step explanation:

y-5y+2

=3-5 x 3+2

Using the rule of BODMAS

=3-15+2

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= -10

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2 years ago

What is m _BEC OB) 70° OA) 65° OD) 120° OC) 50°

just olya [345]

Answer:

C) 50°

Step-by-step explanation:

$m\angle BEC= 180\degree-(65\degree+65\degree)$

$\implies m\angle BEC= 180\degree-130\degree$

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2 years ago

Does 10,15,20 form a right triangle

sveta [45]

A right triangle can only be formed when you use the 3/4/5 rule.
The 3/4/5 rule is a^2 + b^2 = c^2.

We will use 10 for a, 15 for b, and 20 for c.

a^2 + b^2 = c^2

Plug in 10 for a, 15 for b, and 20 for c.

10^2 + 15^2 = 20^2

10^2 = 100

15^2 = 225

20^2 = 400

100 + 225 = 400
This is not applicable, as 100 + 225 = 325.

Your answer is:

No, 10,15,20 does not form a right triangle.

I hope this helps!

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3 years ago