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Agata [3.3K]
2 years ago
11

Математика срочно пожалуйста​ ​

Mathematics
1 answer:
azamat2 years ago
7 0

Step-by-step explanation:

2,3÷2,5=23÷25=0,92

0,3÷0,8=3÷8=0,375

1,7÷025=170÷25=6,8

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Left parenthesis 5 plus 2 square root of 6 right parenthesis squared = a plus b square root of 6 then the value of a and b are
Ganezh [65]

Answer:

The values of a and b are 33 and \frac{20\sqrt{3}}{3}, respectively.

Step-by-step explanation:

The statement is equivalent to the following mathematic expression:

\left(5 + 2\sqrt{2})^{2} = a + b\cdot \sqrt{6} (1)

By definition of the perfect square trinomial:

25 + 20\cdot \sqrt{2} + 8 = a + b\cdot \sqrt{6}

33 + 20\sqrt{2} = a + b\cdot \sqrt{6}

And by direct comparison we have the following system:

a = 33 (2)

b\cdot \sqrt{6} = 20\sqrt{2} (3)

By (3), we solve for b:

b = \frac{20}{\sqrt{3}}

b = \frac{20\sqrt{3}}{3}

The values of a and b are 33 and \frac{20\sqrt{3}}{3}, respectively.

6 0
3 years ago
Figure out the pattern, and write the next number.<br> 2,6,21,88
bija089 [108]
Answer:
a5=445

Explanation:
a of n=(a+1)*n
a1=2
I found the pattern to add 1 to the previous number and then multiply it by its number in the sequence. Apologies for the terrible format of my recursive formula.
Proof of pattern:
(2+1)*2=6
(6+1)*3=21
(21+1)*4=88
a5=(88+1)*5=445
6 0
3 years ago
45 miles per hour<br><br> ? miles per minute
hjlf

if its 45 miles per hour then, 0.75 mile/minute.

8 0
2 years ago
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What word describes the equal shares of a shape
Phantasy [73]
This is known as: Symmetry
6 0
3 years ago
Help please answer the picture
cupoosta [38]

Answer:

Three angles measuring 75, 45, and 60.

Step-by-step explanation:

3 0
2 years ago
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