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3 years ago

What is the pythagoras theorem?

1 answer:

3 0

Pythagoras theorem is used in scalene triangles to work out the other side length to do this you would need to follow the rule a2+b2=c2 in order to calculate the hypotenuse

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Is the sequence 4, 8, 12, 16, 20, ... a geometric sequence? If it is a geometric sequence, what is the common ratio?

vovangra [49]

Answer and Step-by-step explanation:

This sequence is NOT a geometric sequence.

It is an arithmetic sequence, because the numbers are going up using addition, going up each time by 4.

#teamtrees #PAW (Plant And Water)

3 0

2 years ago

What is 31.5 percent of 473?

Anna [14]

31.5% of 473 can be calculated as follows

(31.5/100) * 473
= 14899.5/100
= 148.99

hope it helped

3 0

3 years ago

Please help me with 2 though 6

Ymorist [56]

It’s making me use 20 characters so here’s a lil text

4 0

3 years ago

27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

4 0

3 years ago

How do you simplify: 5(8 + 7) ? a. 75 b. 65 c. 47 d. 15

tia_tia [17]

Answer:

C. 47

Step-by-step explanation:

5(8 + 7)

Expand the brackets. Brackets mean to multiply.

5(8 + 7)

5 * 8 + 7

= 40 + 7

= 47

8 0

3 years ago

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