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3 years ago

HELP ME PLEASE ILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Leno4ka [110]3 years ago

3 0

Answer:

91.7 inches to 1 decimal place

Step-by-step explanation:

We will use Pythagoras's theorem to find the height of the pyramid.

The height of the Pyramid forms a right-angled triangle with half of the base and the slant height.

We can get half the length of the base by dividing the length of one side of the base = 20.4 by 2 = 10.2in

slant height = 92.3in

Therefore height = $\sqrt{92.3^{2} -10.2^2} =91.73in$

The height of the pyramid is 91.73inches to 1 decimal place

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In the whole number 2,098,753,124 what is the place value of the digit 9

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90,000,000 is the answer

Step-by-step explanation:

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1011+111 in binary form

Ann [662]

Answer:

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Step-by-step explanation:

$1011=1(2)^3+0(2)^2+1(2)^1+1(2)^0$

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So $1011+111$ gives us:

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$+$

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-----------------------------------------------------

Combine like terms:

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We aren't allowed to have a coefficient bigger than 1.

I'm going to replace $2^0$ with 1 and $2$ with $(2)^1$ :

$1(2)^3+1(2)^2+(2)^2+(2)^1(1)$

I want a $2^0$ number:

$1(2)^3+1(2)^2+1(2)^2+1(2)^1+0(2)^0$

Combine like terms:

$1(2)^3+2(2)^2+1(2)^1+0(2)^0$

$2(2)^2=2^3$ :

$1(2)^3+2^3+1(2)^1+0(2)^0$

Combine like terms:

$2(2)^3+1(2)^1+0(2)^0$

We can rewrite the first term by law of exponents:

$2^4+1(2)^1+0(2)^0$

$1(2)^4+1(2)^1+0(2)^0$

So the binary form is:

$10010$

Maybe you like this way more:

Keep in mind 1+1=10 and that 1+1+1=11:

Setup:

1 0 1 1

+ 1 1 1

------------------------------

(1) (1) (1)

1 0 1 1

+ 1 1 1

------------------------------

1 0 0 1 0

I had to do some carry over with my 1+1=10 and 1+1+1=11.

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Andrej [43]

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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