3 years ago

PLEASE ANSWER THIS QUICKLY!! I WILL GIVE BRAINLIEST!!!

Mathematics

1 answer:

lisov135 [29]3 years ago

4 0

I think it's $16.432 but I'm not sure.

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A river has a current of 2km per hour. Find the rate of Fred’s boat in still water if it travels 30 km downstream and the same t

ratelena [41]

Answer:

32km

Step-by-step explanation:

8 0

3 years ago

I NEED THIS ANSWER NOW! Determine which postulate or theorem can be used to prove that ABC DCB.

Archy [21]

Quick Answer SSS
Proof
AC = DB
AB = DC
BC = BC This side is equal to itself and is common to both triangles.

Three sides of one triangle equal to 3 sides of the other means that the triangles are congruent. It is the Theorem you need.

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2 years ago

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Calculate the area of triangle ABC with altitude BD, given A (−6, 0), B (0, 0), C (0, 6), and D (−3, 3).

nata0808 [166]

Answer:

18 unit²

Step-by-step explanation:

If BD is altitude then AC is the base.

The length of AC is:

AC = $\sqrt{6^2+6^2} = 6\sqrt{2}$

The length of BD is:

BD = $\sqrt{3^2 + 3^2} = 3\sqrt{2}$

The area is:

A = 1/2bh
A = 1/2 * $6\sqrt{2} *3\sqrt{2}$ = 18 unit²

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2 years ago

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(1×10,000)+(3×100)+(5×10)+(9× 1/10 )+(8× 1/100 ) as a decimal number.

Fed [463]

Answer:

10350.98

Step-by-step explanation:

6 0

3 years ago

-1/9+-5/9= Simplest form 24 points

Nataly [62]

-1/9+-5/9=

When you are adding a negative number, the operation turns into subtraction:

-1/9-5/9= $\frac{-1-5}{9}$ $=-\frac{6}{9}=-\frac{2}{3}$

Really, it's just subtraction. The simplest form is -2/3, which is equal to -0.66667.

I hope this helps :)

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3 years ago

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