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3 years ago

I already tried to put 4.5 but it didn’t work Please help

Mathematics

1 answer:

mel-nik [20]3 years ago

7 0

Answer:

4.50 * 10^5

Step-by-step explanation:

We need to notice the 3 significant figures

First change to scientific notation by moving the decimal 5 places to the left. That makes the exponent +5

4.50000* 10^5

We need 3 sig figures

4.50 * 10^5

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3 years ago

which are the roots of the quadratic function f(b) = b2 – 75? check all that apply. b = 5 square root of 3 b = -5 square root of

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<span>The answers are b = 5 square root of 3; b = -5 square root of 3. f(b) = b^2 – 75. If f(b) = 0, then b^2 – 75 ) 0. b^2 = 75. b = √75. b = √(25 * 3). b = √25 * √3. b = √(5^2) * √3. Since √x is either -x or x, then √25 = √(5^2) is either -5 or 5. Therefore. b = -5√3 or b = 5√3.</span>

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3 years ago

Read 2 more answers

Help me now plz it do in 30 min

lapo4ka [179]

Answer:

For the first row, write 5(0)-1 = 0-1. y is equal to -1.

For the second row, write 5(1)-1 = 5-1. y is equal to 4.

For the third row, write 5(2)-1 = 10-1. y is equal to 9.

For the fourth row, w rite 5(3)-1 = 15-1. y is equal to 14.

Step-by-step explanation:

Hope this helps!

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3 years ago

From deltamath.com Help me please i really don't get it.

Brums [2.3K]

Answer:

cos = adjacent/hypotenuse

3/square root13

now you do square root 13 x3 divided by square root 13^2

= 3square root13/13

hope that answers your question

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3 years ago