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 3 b = 3 square root of 5 b = -3 square root of 5 b = 25 square root of 3 b = -25 square root of 3

Answers

Answer 1

Answer: 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.

Answer 2

Answer:

Answer:

$b=5√(3)$ and $b=-5√(3)$ are the roots of given quadratic equation.

Step-by-step explanation:

Given quadratic equation is $f(b)=b^2-75$

We have to check all the given options.

If the value of f(b) gives 0 when put the value of b in above equation then only that b value is the root of quadratic equation.

$b=5√(3): (5√(3))^(2)-75=75-75=0$

$b=-5√(3): (-5√(3))^(2)-75=75-75=0$

$b=3√(5): (3√(5))^(2)-75=45-75=30\neq 0$

$b=-3√(5): (-3√(5))^(2)-75=45-75=30\neq 0$

$b=25√(3): (25√(3))^(2)-75=1875-75=1800\neq 0$

$b=-25√(3): (-25√(3))^(2)-75=1875-75=1800\neq 0$

hence, only first two values $b=5√(3),-5√(3)$ gives the value of f(b)=0 .

⇒ $b=5√(3)$ and $b=-5√(3)$ are the roots of given quadratic equation.

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Answers

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Answers

Answer:

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Suzy buys 2 shirts and 2 pairs of pants for 42 dollars at the store. Annette buys 3 shirts and 1 pair of pants for 37 dollars.Create a system of equations that can be used to solve for the cost of the shirts and pants.

a
2s + 2p = 37
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b
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c
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Answers

Answer:

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Hope this helps.

Step-by-step explanation:

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Answers

Simply subtract by converting the whole number to a decimal;
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Now lets subtract the two decimals;
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Hope this helps :)

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Equation:

Solution:

Answers

X + (3 × X) = 100

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Let the number be x.

According to your question,

x + 3x = 100 ( Equation)

thus, 4x = 100

Thus, x = 100/4 = 25

Thus, the number is 25 (Solution)

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Answers

Answer:

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Step-by-step explanation:

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