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3 years ago

Free points come grabe them if you answer this properly what is 1+2=?

Mathematics

2 answers:

lina2011 [118]3 years ago

4 0

Answer:

1+2=3

Step-by-step explanation:

Alecsey [184]3 years ago

3 0

Three.
This is due to the fact that if you add the first exponent to the second, you will end up with your solution. This process is called addition. For example l +ll =lll. So therefore 1+2 =3. Hope this helps!!

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It will take her 33/18

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3 years ago

HELP ASAP! CORRECT ANSWER GETS BRAINLIEST!!!

LUCKY_DIMON [66]

Answer:

Have you tried 25.1?

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3 years ago

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The hypotenuse of an isosceles right triangle is centimeters longer than either of its legs. Find the exact length of each side.

Varvara68 [4.7K]

Question

The hypotenuse of an isosceles right triangle is 11 centimeters longer than either of its legs. find the exact length of each side.

Answer:

$Hypotenuse:37.56$

$Other\ Legs: 26.56$

Step-by-step explanation:

Let the hypotenuse be y and the other legs be x.

So:

$y = 11 + x$

Required

Determine the exact dimension of the triangle

Using Pythagoras theorem;

$y^2 = x^2 + x^2$

$y^2 = 2x^2$

This gives:

$(11+x)^2 = 2x^2$

Open bracket

$121 + 22x + x^2= 2x^2$

Collect like terms

$2x^2 - x^2 -22x - 121 = 0$

$x^2 -22x - 121 = 0$

Using quadratic formula:

$x = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}$

$x = \frac{-(-22)\±\sqrt{(-22)^2 - 4*1*-121}}{2*1}$

$x = \frac{-(-22)\±\sqrt{968}}{2*1}$

$x = \frac{22\±31.11}{2}$

Split

$x = \frac{22+31.11}{2}\ or\ x = \frac{22-31.11}{2}\\$

$x = \frac{53.11}{2}\ or\ x = \frac{-9.11}{2}$

x can not be negative.

So:

$x = \frac{53.11}{2}$

$x = 26.56$

Recall that:

$y = 11 + x$

$y = 11 + 26.56$

$y = 37.56$

Hence, the dimensions are:

$Hypotenuse:37.56$

$Other\ Legs: 26.56$

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3 years ago

The rectangle shown has a perimeter of 86 cm and the given area. Its length is 3 more than four times its width. Write and solve

Naddika [18.5K]

Answer:

55x

Step-by-step explanation:

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2 years ago

What is the sum of the series? Write in expanded form making sure to show all steps used to find the sum.

san4es73 [151]

Answer:

-16

Step-by-step explanation:

k = 3

-2(3) + 5 = -1

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k = 6

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(-1) + (-3) + (-5) + (-7)

= -16

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3 years ago

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