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3 years ago

Simplify the expression: 10+-2f^2+-6+7+-2f^2+-9f

Mathematics

1 answer:

aleksandrvk [35]3 years ago

5 0

$10+-2f^2+-6+7+-2f^2+-9f = 10-2f^2 -6+7-2f^2 -9f \\\\= -2f^2 -2f^2 -9f+10-6+7= \boxed {-4f^2 -9f +11}$

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Find the solution(s) of the quadratic equation 2x2 – 3x – 35 = 0

Yuliya22 [10]

Answer: x = 5, x = -7/2

Step-by-step explanation:

2x² - 3x - 35 = 0

Step 1: Find two values whose product = 2(-35) and sum = -3: -10 & 7

Step 2: Replace the b-value of -3x with -10x + 7x:

2x² - 10x + 7x - 35 = 0

Step 3: Factor the first two terms and the second two terms:

2x(x - 5) +7(x - 5) = 0

Step 4: Write the factored form:

Notice that the parenthesis are identical. This is one of the factors. The outside values are the other factor:

Parenthesis: (x - 5)

Outside: (2x + 7)

Factored form: (x - 5)(2x + 7) = 0

Step 5: Set each factor each to zero and solve for x:

x - 5 = 0 2x + 7 = 0

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3 years ago

Use the quadratic formula to solve 2y2 + 2y – 12 = 0.

soldier1979 [14.2K]

Hello
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Answer C (-3,2)

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3 years ago

Which expression represents the following situation add seven to the product of a number of ten

NNADVOKAT [17]

$10x + 7$
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4 years ago

I will gove you 100 points

MrMuchimi

To find side given angle and two sides:

a² = b² + c² − 2bc cos(A)

Here given:

a = AC cm

b = 10 cm

c = 7 cm

angle A = 120°

Solve for AC (a):

a² = (10)² + (7)² − 2(10)(7) cos(120)

a² = 219

a = √219

a = 14.7986 cm

a = 14.8 cm

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2 years ago

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Alekssandra [29.7K]

Answer:

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Step-by-step explanation:

The slope-intercept equation is basically y=mx+b

m is the slope and b is the intercept.

Plug the numbers in for those 2 and there's your answer :)

5 0

3 years ago

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