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AlekseyPX
4 years ago
5

Help! I need to know if 7√3+2√9 is rational or irrational

Mathematics
1 answer:
Brums [2.3K]4 years ago
3 0

Answer:

Irrational

Step-by-step explanation:

7\sqrt{3}+2\sqrt{9}= \\\\7\sqrt{3}+2(3)= \\\\6+7\sqrt{3}

Therefore, this is irrational. Hope this helps!

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Please help, sorry. Will grant brainliest !
Nonamiya [84]

Answer:

i think it's x=1

Step-by-step explanation:

4 0
4 years ago
Which choice shows the product of 22 and 39?
Yuliya22 [10]

Answer: (22)(39) = 858.

Step-by-step explanation:

Product of a number simply means that one has to multiply the numbers that are given. For example, if a student is told to find the product of 2 and 5, it simply means that 2 × 5 = 10.

Regarding the above question, the product of 22 and 39 is represented by: (22)(39) = 858. It should be noted that 22 × 39 = 858

8 0
3 years ago
What are two straight lines that cross each other at a right angle?         A. Curved   B. Parallel   C. Broken   D. Perpendicul
jolli1 [7]
It is d perpendicular
4 0
4 years ago
How do you solve 4x- 3y=-15. x y=5 using substitution
Juli2301 [7.4K]
4x - 3(5) = -15
4x - 15 = -15
4x = 0
x = 0

So the solution to the system of inequalities is (0,5)
6 0
3 years ago
A flask contains 12% acid solution and the remaining volume is water. If the flask is 8.52 inches high and the diameter is 3.71
Tamiku [17]

Answer:

Percent of water in the mixture=88%

Which is 81.07 square inches of the total volume

Step-by-step explanation:

Volume of the flask=πr^2h

π=3.142

radius=diameter/2

=3.71/2

=1.855

height=8.52 inches

Volume of the flask=πr^2h

=3.142*(1.855)^2*8.52

=3.142*3.441025*8.52

=92.115688686

Approximately 92.12 square inches

Flask contains 12% acid solution and the remaining volume is water

Percentage of water =Total percentage - acid solution percentage

=100%-12%

=88%

Percentage of Water =88%

Percentage of the mixture by volume is water=88% of the total volume

=88/100*92.12

=81.0656 square inches

Approximately 81.07 square inches

6 0
4 years ago
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