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Tamiku [17]
4 years ago
13

What are any properties use to solve 8-2^3)+21

Mathematics
1 answer:
mote1985 [20]4 years ago
6 0

To solve an equation, we use the addition-subtraction property to transform a given equation .... 7x = 21. Finally, we divide each member by 7 to obtain.

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A utility company burns coal to generate electricity. The cost of removing a certain percent of the pollutants from the smokesta
Shtirlitz [24]

Answer:A utility company burns coal to generate electricity. ... b) Find where the function is undefined. c) Interpret the meaning of the vertical asymptote. As the company attempts to remove higher amounts of the pollutants, the cost rises, and ... and they will successfully be able to remove 100% of the pollutants.

Step-by-step explanation:That is, if it costs dollars to remove 25% of the pollutants, it would cost more than ... The cost (in dollars) of removing percent of the smokestack pollutants is given by ... How much additional expense is the new law asking the utility company to ... The graph of this function is shown in Figure 3.56. ... C 80,000 85 100 85 p 100.

3 0
4 years ago
A box contains 10 ​transistors, 3 of which are defective. If 3 are selected at​ random, find the probability of the statements b
Naily [24]

Answer:

1. 1/120

2. 7/24

Step-by-step explanation:

n = 10

Number of defective = 3

1. Probability of all defective =

(Number of defective/n) x (number of defective -1/n -1)...(number of defective -n/n-1)

=3/10 x 2/9 X 1/8

= 6/720

= 1/120

2. probability of none defective

Since 3 are defective, those that are not defective = 7

The probability is therefore:

7/10 x 6/9 x 5/8

= 210/720

= 7/24.

8 0
3 years ago
3x-y=5 <br> write each equation in slope-intercept form
hram777 [196]

Answer:

y = 3x - 5

Step-by-step explanation:

3x-y=5

-3x     -3x

-y= -3x + 5

divide each number by -1

-y/-1 = y

-3x/-1 = 3x

5/-1 = -5

8 0
4 years ago
The parent teacher association is raising money for a new swing set.they need $682.56 to purchase the swing set and receive a $2
zheka24 [161]
Total amount to be raised by the 8 student groups = Total amount required - Donation = $682.56 - $200.00 = $482.56

Amount to be raised bu each group = Total amount to be raised by the 8 groups /8 = 482.56/8 = $60.32
5 0
3 years ago
Premises: If a triangle has an angle with a measure more than 90°, then the triangle is an obtuse triangle. The measure of an an
andreyandreev [35.5K]

we know that

<u>Law of detachment </u>is used when you have a conditional statement and another statement that matches the hypothesis of the conditional.

<u>Law of syllogism</u> is used when you have two conditionals and the hypothesis of one matches the conclusion of the other

in this problem we have the law of detachment

<u>the conditional statement is </u>

If a triangle has an angle with a measure more than 90°

<u>the another statement that matches the hypothesis of the conditional</u>

then the triangle is an obtuse triangle

therefore

<u>the answer is</u>

the law of detachment

5 0
4 years ago
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