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kakasveta [241]
3 years ago
7

X2 + x - 132 = 0 what is the formula

Mathematics
2 answers:
geniusboy [140]3 years ago
4 0
3x-132=0
you need to add all like terms first then answer the equation
kogti [31]3 years ago
4 0

Answer:

below

Step-by-step explanation:

x^{2} + x - 132 = 0 is a quadratic equation.

the quadratic formula is b^{2} -4ac

  • b = 1  
  • a = 1  
  • c = -132  

b^{2} -4ac = 1^{2} - 4*1*(-132) = 1 + 4*132 = 529

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Carly went shopping and bought a pair of pants for $25.00. She also purchased a shirt for $35.00, They were on sale for 20% off.
Anna007 [38]

Answer:

The answer is $12

Step-by-step explanation:

Multiply each price by 20% (0r .2) then add them. OR

Add each price then multiply them by 20$ (or .2)

Hoped this helped!

7 0
2 years ago
5
Daniel [21]

Answer:

a,c,d

Step-by-step explanation:

8 0
2 years ago
Which expression can be used to find the surface area of the following square pyramid?
kodGreya [7K]

Answer:

Step-by-step explanation:

expression for surface area = a² + a √(a²/4+h²)

=4² + 2(4) √(4²/4+5²)

=16 + 8  √(16/29)

= 24 √0.55

= 20.65

6 0
3 years ago
Please help me!!!
Kay [80]
A. Slope is defined by rise/run. It looks like the points where it intersects the axes are at (0, 6) and (2, 0)
Basically you take (y-y1)/(x-x1), which in this case could be (6-0)/(0-2), which is -3.
b. The perpendicular slope would be the negative inverse of that.
The inverse of 3 is 1/3, so the negative inverse of -3 would also be 1/3.
c. The parallel slope is the same as the original slope.
d. Plug these points in for y=mx+b. 
2=(1/3)(-1)+b
2=-1/3+b
b=7/3. (that's 2 and 1/3).
The equation for that line would be y=(1/3)x+(7/3)
e. The y intercept is found when x=0. But it's also the b in the y=mx+b equation, so the y intercept is (0, 7/3).

In case that's hard to read:
a. Slope = -3
b. Perpendicular Slope = 1/3
c. Parallel Slope = -3
d. y=(1/3)x+(7/3)
e. Y intercept = (0,, 7/3)

Hope that helps!

5 0
3 years ago
Read 2 more answers
The graph below represents an employee's earnings based on units sold. What can be interpreted from the slope of this graph?
Vesna [10]

Answer:

A

Step-by-step explanation:

<u />

From inspection of the graph, we can see that every time the x-value increases by 10, the y-value increases by 1000.

So, the employee earns an additional $1000 for every 10 units sold.

To calculate how much the employee earns for every 1 unit sold, divide $1000 by 10:

1000 ÷ 10 = 100

Therefore, the employee earns an additional $100 for every one unit sold.

<u />

<u>Proof</u>

This can be proved by calculating the slope (gradient) of the graph:

\sf slope=\dfrac{y_2-y_1}{x_2-x_1}

where \sf (x_1,y_1) and \sf (x_2,y_2) are two points on the line

When picking the two points, remember that the <u>y-values are in </u><u><em>thousands</em></u><u> </u><u>of dollars.</u>

<u />

Two points on the line:

(0, 30000) and (20, 32000)

Substituting these into the formula:

\sf \implies slope=\dfrac{32000-30000}{20-0}=\dfrac{2000}{20}=100

Therefore, the employee earns an additional $100 for every one unit sold.

7 0
2 years ago
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