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Brilliant_brown [7]
3 years ago
8

1. The first formula found for solving cubic equations applied only to cubics without a square term. In modern notation, these l

ook like These are sometimes called "depressed cubics." Let y x- and substitute in the equation below to "red uce" the cubic. Verify that the square term will disappear. Now we can solve this equation for x using the formula forx, and then subtra ind y
Mathematics
1 answer:
7nadin3 [17]3 years ago
6 0

Answer:a2+b2=c2

Step-by-step explanation:

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Please help and first right answer will be marked branliest
lakkis [162]

Answer:

a) 320 students

b) 25 students

Step-by-step explanation:

Number of 18-years old in the survey:

(We add all  frequency points for each line)

0 + 30 + 20 + 60 + 70 + 40 + 60 + 40 + 0 = 320 students

Number of 18 year old spending between 25 and 35 minutes: 40 + 65 = 105

Number of 12 year old spending between 25 and 35 minutes: 30 + 50 = 80

105 - 80 = 25 students

5 0
4 years ago
Let’s think about another type of scenario. What if you were told that a bracelet requires 10 beads and 10 minutes to make while
Georgia [21]

Answer:

$425

Step-by-step explanation:

Let x represent the number of bracelets made and let y represent the number of necklace made.

Since the craftsman has 1000 beads to work with, hence:

10x + 20y ≤ 1000    (1)

Also, the craftsman has 1600 minutes, hence:

10x + 40y ≤ 1600   (2)

From ploting equations 1 and 2 on the geogebra online graphing, we can see that the solution to the problem is (40, 30).

Since the bracelet costs $5 and a necklace costs $7.50, hence the maximum revenue is:

Revenue = 5x + 7.5y = 5(40) + 7.5(30) = $425

4 0
3 years ago
In a certain country, the car number plate is formed by 4 digits from the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 followed by 2 l
elena-s [515]

Answer:

none, because without the letters and numbers.the plate number can not be identify or formed

3 0
3 years ago
A soup recipe calls for 2 3/4 quarts of vegetable broth.An open can of broth contains 1/2 quart of broth.How much more do you ne
Annette [7]
1/2 - 2/4

2 3/4 - 2/4 + 2 1/4 still needed
5 0
3 years ago
Read 2 more answers
suppose that 18 inches of wire costs 54 cents. At the same rate, how much (in cents) will 36 inches of wire cost?
Ilya [14]

Answer:

108

Step-by-step explanation:

Since 18 x 2 = 36 you can just multiply 54 x 2. 54 x 2 =108

5 0
3 years ago
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