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3 years ago

4I-2I-I-3I please evaluate

Mathematics

1 answer:

Elena-2011 [213]3 years ago

4 0

4I-2I-I-3I
= 4(2) - 3
= 8 -3
= 5

hope it helps

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A right triangle has side lengths that are consecutive interest and a perimeter of 12 feet what are the angles of the triangle

mafiozo [28]

Answer:

Step-by-step explanation:

The sides are consecutive integers and the perimeter is 12 ft.

3 ft, 4 ft, 5 ft

One angle is 90°, one angle is arcsin(3/5) ≅ 36.9°

the remaining angle is 90-36.9 = 53.1°

8 0

3 years ago

Work out length xheight 7 .5 cm base 16cm

Serga [27]

Answer:

120 $cm^{2}$

Step-by-step explanation:

is this for area?

Length times Height is the same as Base times Height

A = L * W

A = 7.5 * 16

A = 120 $cm^{2}$

Hope this helped!

Have a supercalifragilisticexpialidocious day!

8 0

3 years ago

How do you find the linear regression equation?

konstantin123 [22]

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3 years ago

Is 144m,165m,219m a right triangle

maw [93]

Answer:

Yes

Step-by-step explanation:

For a triangle to be rights angled.

It should follow Pythagoras theorem.

Pythagoras theorem states that if sides containing right angle is a and b

then is given by

hypotenuse = $\sqrt{a^2+b^2}$

As hypotenuse is always the greatest side

Out of the given sides 144m,165m,219m

219 can only be hypotenuse

Thus side containing right angle will be 144m and 165m .

Lets plug these value in formula of Pythagoras theorem

$hypotenuse = \sqrt{144^2 + 165^2} \\hypotenuse = \sqrt{20,736 + 27,225} \\hypotenuse = \sqrt{47961} \\hypotenuse = 219\\$

As we can see that hypotenuse calculated by us is same as given in problem.

Thus the given triangle is right angled.

4 0

4 years ago

500(x - 3) = 5000 can you help me

Ierofanga [76]

Answer:

x = 13

Step-by-step explanation:

500(x - 3) = 50000 ( divide both sides by 500 )

x - 3 = 10 ( add 3 to both sides )

x = 13

3 0

3 years ago

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