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Llana [10]
3 years ago
9

help please! I must solve using descartes law of signs or rational root theorem. show all steps please thanks!​

Mathematics
1 answer:
wel3 years ago
4 0

Answer:

x=2 or x=3

Step-by-step explanation:

x^4 - 5x^3 + 7x^2 - 5x + 6 = 0

Step 1=Factor left side of equation.

(x-2) (x-3) (x^2 + 1) = 0

Step 2=Set factors equal to 0.

x-2 = 0 or x-3 = 0 or x^2 + 1 = 0.

Answer:x=2 or x=3

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2) There are 40 boys and 60 girls in a class of students. What is the ratio of girls to students
ra1l [238]

Answer:

60:100, 6/10, 3/5, 6 to 10, etc.

Step-by-step explanation:

You take the number of girls over total students which is boys + girls. Since there's 40 boys and 60 girls, it's 60 girls to 100 students which can be written in several ways.

8 0
3 years ago
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Pedro, Alex, and Jaime are having a three-point contest. Each boy takes six turns and records the number of three-pointers he sh
bazaltina [42]
First, reorder the numbers for each person. 
The median is basically the middle number. If there are 2 middle numbers, then take the average of the two of them. 

Pedro: 4, 5, 6, 7, 8, 9    
The 2 middle numbers are 6 and 7. The average of 6 and 7 is 6.5 .
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Alex: 3, 5, 5, 5, 9, 9
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Jaime: 3, 4, 6, 8, 8, 9
The 2 middle numbers are 6 and 8 and thus, the average is 7.
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So the answer should be Jaime. 
7 0
3 years ago
Read 2 more answers
The length of a rectangle is five times its width.
kykrilka [37]

Answer:

w=10

L=50

Step-by-step explanation:

<h2><em>Length=5w</em></h2><h2><em>Width=W</em></h2>

6w=60

----   ----

6       6

w=10

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L=50

Also can you make me the top answer?

4 0
3 years ago
Solve the Equation p - 15 = 30.
Alina [70]

Answer:

45

Step-by-step explanation:

add 15 on both sides

5 0
3 years ago
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Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
MrMuchimi

Answer:

divide the 13 motorcycles by the total number of vehicles  and then multiply by 100%

43 cars

Step-by-step explanation:

Q3

To find the percent of motorcycles in traffic

divide the number of motorcycles by the total number of vehicles and then multiply by 100%

Q4

Mode means most often.  In a histogram, it is the tallest column.  It is the first column, which looks like 43 cars

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3 years ago
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