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nasty-shy [4]
3 years ago
7

What is the product of (b+5)(b-11)

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
3 0

Answer:

b^2 - 6b - 55

Step-by-step explanation:

(b + 5)(b - 11)

Use FOIL

First

Outside

Inside

Last

F:  b * b = b^2

O:  b * -11 = -11b

I:  5 * b = 5b

L:  5 * -11 = -55

b^2 - 11b + 5b - 55

Combine like terms

-11b + 5b = -6b

b^2 - 6b - 55

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Anyone have a pad let I can join? 3x3÷1​
Nina [5.8K]

Answer:

9

Step-by-step explanation:

3 x 3 =9 9 divived by 1

9

4 0
3 years ago
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Whats a line passing<br> through the<br> points (0, 0) and<br> (5,-7)?
Ipatiy [6.2K]

Answer:

y = -7/5x

Step-by-step explanation:

First, we need to use the two points to find the slope.

m = y₁ - y₂ / x₁ - x₂

m = -7 - 0 / 5 - 0

m = -7/5

Now we know that the slope is -7/5. Now we'll substitute the information we've gathered into the point-slope form equation to get an equation.

y - y₁ = m(x - x₁)

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y + 7 = -7/5x + 7

y = -7/5x

Therefore, the equation of the line is y = -7/5x.

7 0
3 years ago
Solve for the zeros of the quadratic function f(x) = 9x2 + 6x + 1. Write the answer as a fraction.
GaryK [48]
We are asked to solve for the zeros of the given quadratic equation f(x) = 9x2 + 6x + 1. To solve this, first, we need to set the given equation into zero such as the succeeding solution is shown below:
0 = 9x2 + 6x +1
Perform factoring such as:
0 = (3x + 1) (3x + 1)
Solving for x1, we have:
3x + 1=0
3x = -1
x1 = -1/3
Soving for x2, we have:
3x +1=0
x = -1/3
Therefore, the zeroes of the given expression is both -1/3 for x1 and x2.
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4 years ago
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Which expression is equivalent to the following complex fraction? StartFraction 3 Over x minus 1 EndFraction minus 4 divided by
zimovet [89]

The expression which is equivalent to the provided complex fraction is equal to the expression,

{\dfrac{-4x+7}{2(x-2)}}

<h3>What is the equivalent expression?</h3>

Equivalent expressions are the expression whose result is equal to the original expression, but the way of representation is different.

The expression given in the problem is,

\dfrac{\dfrac{3}{x-1}-4}{2-\dfrac{2}{x-1}}

Let the expression which is equivalent to the above expression is f(<em>x</em>). Therefore,

f(x)=\dfrac{\dfrac{3}{x-1}-4}{2-\dfrac{2}{x-1}}

Take the LCM (x-1) in the numerator and denominator as,

f(x)=\dfrac{\dfrac{3-4(x-1)}{x-1}}{\dfrac{2(x-1)-2}{x-1}}

Simplify the expression and cancel out the (x-1) from both the fraction as,

f(x)={\dfrac{3-4(x-1)}{2(x-1)-2}}\\f(x)={\dfrac{3-4x+4}{2x-2-2}}\\f(x)={\dfrac{-4x+7}{2(x-2)}}

Hence, the expression which is equivalent to the provided complex fraction is equal to the expression,

{\dfrac{-4x+7}{2(x-2)}}

Learn more about the equivalent expression here;

brainly.com/question/2972832

5 0
3 years ago
A bike is on sale for 30% off. If the scale price is 308$ what is the original price?​
aleksandr82 [10.1K]
100% - 30%=70%

70% : $308 = 100% : x
70x = 308x100
70x = 30800
X = $440

Original =$440
5 0
3 years ago
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