3 years ago

WILL mark answer right if gotten right

Mathematics

1 answer:

marin [14]3 years ago

7 0

Answer:

ooh bruh it pink

Step-by-step explanation:

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Evaluate the expression for the given values of the variables. x2 + 4(x − y) ÷ z2, for x = 8, y = 5, and z = 2

prisoha [69]

(8)(2)+4(8)(-5)(2)(2)

The answer is -624

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3 years ago

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adell [148]

The answer is letter is C. 19.5 Because you divide

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3 years ago

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Zanzabum

Answer: second option

Step-by-step explanation:

The standard form of a quadratic equation is:

$ax^2+bx+c=0$

Then, to write the quadratic equation given in the problem in standard form, you must substract 1 from both sides of the equation. Then you have:

$2x^2+5x-1=0$

Given the quadratic equation above, to find the value of $b^2-4ac$ you must substitute:

a=2; b=5 and c=-1 into $b^2-4ac$

Thenrefore, you obtain the following result:

$5^2-4(2)(-1)=33$

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3 years ago

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A force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work is done in stretching it

Troyanec [42]

Answer:

W = 15/4 ft . ib

Step-by-step explanation:

Force = 10ib

According to hooked law, f(x) = kx

x = 4inches = 4/12 ft

x= 1/3ft

f(x) = 1/3k

10 = 1/3k

k = 30 ib/ft

f(x) = 30x

Workdone = integral of f(x) with its limit

6 inches = 6/12 ft

= 1/2ft

W = integral(1/2 to 0) of 30x

W = 15x^2(1/2 to 0)

W = 15(1/2)^2 - 15(0)^2

W = 15(1/4) - 0

W = 15/4 ft. Ib

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3 years ago

Solve for x -5x = -10 O x= -2 O x = 50 O x= 2

KATRIN_1 [288]

X=2 - hope it helps

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3 years ago

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