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wariber [46]
3 years ago
7

2/3(3/5x+9)=1/2(2x+40) I posted this before but w/o the 1/2 on accident

Mathematics
1 answer:
andriy [413]3 years ago
5 0
The answer and working are shown in the photo below
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I need an explanation for the problem 4v2=-12v-9. I don't understand why it factors into 4v+3 and 4v+3
kirza4 [7]

Answer:

The factors are 2v+3,2v+3.

The factors are not 4v+3,4v+3

Step-by-step explanation:

Equation is 4v^2=-12v-9.

This equation can be written as follows:

4v^2+12v+9=0

Here,

12v=6v+6v

Therefore,

4v^2+6v+6v+9=0\\2v(2v+3)+3(2v+3)=0\\(2v+3)(2v+3)=0

So, the factors are 2v+3,2v+3.

The factors are not 4v+3,4v+3

7 0
3 years ago
Evaluate 3 to the 2nd power plus 7 times 2
Olin [163]

Hey there!

3^2 + 7 • 2

3^2 = 3 • 3 = 9

9 + 7 • 2

7 • 2 = 14

9 + 14 = 23

Answer: 23 ☑️

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

7 0
3 years ago
Read 2 more answers
There are 26 prize tickets in a bowl,labeled A to Z. What is the probability that a prize ticket with a vowel will be chosen,not
labwork [276]

Answer:

3.1%, dependent event

Step-by-step explanation:

We have that vowel are 5, it is from A, E, I, O, U therefore the probability of drawing a vowel is:

5/26

since there are a total of 26 options to choose from. Then, when selecting that, we are left with 25 options and 4 vowels, therefore the probability would be:

4/25

Therefore the final probability is:

5/26 * (4/25) = 0.031

In other words, selecting a vowel and then another (without replacement) the probability is 3.1%

The events are dependent, since the first event affects the second event, since the number of vowels and the number of total options are reduced.

5 0
3 years ago
What is the sum of the complex number 2+3i and 4+8i, where i=√-1?
ser-zykov [4K]
2+3i+4+8i
2+4+3i+8i
6+11i
3 0
3 years ago
If a man runs for a nd hour and a half at 8 miles an hour due South; and he continues south on a bus traveling at 55 miles an ho
blsea [12.9K]

he ran 8 * 1.5 = 12 miles

the bus went : 55 * 24/60 = 22 miles

12 +22 = 34 miles total

8 0
3 years ago
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