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olga_2 [115]
3 years ago
8

Hi i rlly need help on 8 9 and 10'sooo could someone plz tell me the answer for the three and explain it i rlly meed this asap

Mathematics
2 answers:
Mamont248 [21]3 years ago
8 0
540 is the answer I am sure hope this helps
lilavasa [31]3 years ago
3 0
8. I think it is 540 because 3 ft equals 36in. so 36×30×1/2= 540
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Please help explain how to solve problem 16?
Anarel [89]
Here is the problem.....√(15x + 10) = 2x+3

to remove the square root, we do the opposite which is to square everything.

(√(15x + 10))² = (2x + 3)²      (the square negates the square root)
15x + 10 = (2x +3)(2x + 3)    (use the distributive property to continue)
15x + 10 = 4x² + 6x + 6x + 9  (combine like terms)
15x + 10 = 4x² + 12x + 9      (subtract 15x and 10 from each side)
-15x - 10          -15x - 10
0 = 4x² - 3x - 1                      (factor completely)
(x - 1) (4x + 1)                    (set each to equal 0)

x - 1 = 0                4x + 1 = 0
x = 1                      4x = -1
                               x = -1/4

place both into the equation to check for reasonableness...we see the negative number is not reasonable, but the x value of 1 is a solution.

answer is 1
4 0
3 years ago
Two numbers are randomly selected from integers 1 through 9. What is the probability that only one of the integers is odd given
12345 [234]

Answer: i think its just 1

Step-by-step explanation:

6 0
3 years ago
(7x-3) ( 11y+5) what’s the value of x
timofeeve [1]

Answer:

7x - 3 = 60

7x = 63

 x = 9

if you need to find for y

11y + 5 = 60

11y = 55

   y = 5

Step-by-step explanation:

plz mark brainest

7 0
3 years ago
Choose the two expressions that are equivalent to 6.5 ÷ 1.3.
kenny6666 [7]

Answer:

A & C

Step-by-step explanation:

To find the two expressions that are equivalent to 6.5 ÷ 1.3, you need to solve all of them until you get the two expressions that have a quotient of 5.

Let's begin solving!

65 ÷ 13  = 5

So now we know that A is one of our answers

65 ÷ 130 = 0.5

Not one of our answers because the quotient is not 5

650 ÷ 130 = 5

This is our other answer! We don't need to solve D because we only needed to find two expressions which are A and C.

Hope this helps you :)

8 0
2 years ago
Read 2 more answers
What is the product?
Dmitrij [34]

Answer:

-3

4

Step-by-step explanation:

You need to take something called the dot product

6 0
3 years ago
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