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vlada-n [284]
3 years ago
6

When it is best to solve using factoring and the Zero Product Property. Include at least one example of an equation that you wou

ld use this method to solve.
Mathematics
1 answer:
Alecsey [184]3 years ago
7 0

Answer:

Step-by-step explanation:

hello :

here is two examples:

1) x²-9=0   means : x²-3² = (x-3)(x+3) = 0   .... use identity : a²-b² = (a-b(a+b)

use the Zero Product Property; x-3=0 or x+3=0  so : x=3 or x= +3

2) x²+4x = 0....using factoring : x(x+4)=0  means : x=0 or x+4=0

x=0 or x= - 4

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B = 54°, b=15, c=<br> c = ? (Round answers to<br> the nearest hundredth.)
zaharov [31]

Answer:

18.54

Step-by-step explanation:

sine is opposite/hypotenuse, and you have opposite (b=15), so use that

sin(54) = 15/c

c = 15/sin54

then use calculator

c = 18.54

8 0
2 years ago
Dave receives a salary of $200 a week plus a commission of 10% of his weekly sales. An equation y = m x + b represents Dave’s we
vovangra [49]

Answer:

y = 0.1x+200

Step-by-step explanation:

First, let's establish that:

x is independent

y is dependent

Basically, the value of y will depend on what x is.

The problem states that the slope of the line is Dave's comission, so since he makes 10% of comission, we can make the slope as 0.1x (mx)

The problem also states that the y intercept (b) is Dave's base salary, and earlier in the problem it states that his base salary is $200 a week. Therefore, b=200

now, the equation is:

y=0.1x+200

Hope this helps!

4 0
3 years ago
Write a summary about decimals that are equivalent to fractions with denominators of 10 or 100. EXTRA CREDIT
Flura [38]
Decimals that contain a zero in the tenth position can be thought of as a fraction over 100 as the tenth isn't occupied and the hundredth correlates to the 100 as a denominator. The same goes for a number with the tenth position occupied. These decimals would be put over 10 as they are occupying that position in the decimal.
7 0
3 years ago
Plz answer this I really need this
kiruha [24]

Answer:

D prefer romance over poetry 2:1

Step-by-step explanation:

Poetry is 20%

Romance is 40%

\frac{40}{20} =\frac{2}{1}

6 0
3 years ago
Read 2 more answers
A circle has a circumference of 50.2450.2450, point, 24 units. What is the radius?
Free_Kalibri [48]

Answer:

r = 8 units

Step-by-step explanation:

The circumference is calculated using C = 2\pi r. Substitute C = 50.24 units. Solve for the radius.

C = 2 \pi r\\50.24 = 2 \pi r\\25.12 = \pi r\\8 = r

8 0
3 years ago
Read 2 more answers
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