3 years ago

What is the result of multiplying 2.5•10^10by 3.5•10^7

Mathematics

1 answer:

NeX [460]3 years ago

5 0

You mean 2.5x10^10 time 3.5x10^7 . right ?

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30.54

leonid [27]

<h3>Answer: Choice 2) sin(B) = cos(90-B)</h3>

Explanation:

The rule is that

sin(A) = cos(B)

if and only if A+B = 90.

Solving for A gets A = 90-B

So we end up with

sin(90-B) = cos(B)

which is the same as

cos(B) = sin(90-B)

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Two numbers, a and b, are stored in one byte floating point notation using the least significant (rightmost) 3 bits for the expo

ehidna [41]

$a=00110111 = 00110_2 \times 2^{111_2} = 6 \times 2^{-1} = 3$

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$a+b=-2 = -1 \times 2^{001} = -2 \times 2^{0} = -4 \times 2^{-1}$ etc.

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Hard to select the correct answers without seeing the choices. Let's check a couple,

$11111001 = -(00000+1) \times 2^{1} = -2 \quad\checkmark$

$11110000 = -(00001 + 1) \times 2^{0} = -2 \quad\checkmark$

$11100111 = -(00011 + 1) \times 2^{-1} = -4/2= -2 \quad\checkmark$

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3 years ago

The following lines are parallel.<br> 4x + 2y = 8 and y = 2x + 4<br> True<br> False

Alenkasestr [34]

I believe the answer is True ! Hope this helps you

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3 years ago

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Find the 62nd term of the arithmetic sequence -27, -21, -15, ...

kaheart [24]

Answer:

a = -27

d = -21 - ( -27) => 6

a62 => a + 61 (d) +=> -27 + 61(6)

=> -27 + 366

=> 339

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2 years ago

Twice a number plus 6 is 20

grigory [225]

Answer:

Step-by-step explanation:

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