All categories

3 years ago

Hi guys im stuck on this maths question (2/5)^-3

Mathematics

2 answers:

Sholpan [36]3 years ago

6 0

Answer:

15.625

Step-by-step explanation:

egoroff_w [7]3 years ago

3 0

Answer:

$(\frac{2}{5} ) {}^{ - 3} \\ = (\frac{a}{b} ) {}^{ - x} = (\frac{b}{a} ) {}^{x} \\ so \: \: \: \: \: \: (\frac{2}{5} ) {}^{ - 3} \\ = (\frac{5}{2} ) {}^{3} \\ = \frac{5 {}^{3} }{2 {}^{3} } \\ \: = \: \frac{125}{8}$

You might be interested in

Matilda always eats at least one of the following for breakfast: cereal, bread, or yogurt. On Monday, she is especially picky. I

Annette [7]

Answer:

Matilda eats Cereal on Monday.

Step-by-step explanation:

Breakfast options for Matilda are: Cereal (C), Bread (B) or Yogurt (Y).

Condition 1: If she eats cereal and bread she also eats yogurt.

Then Matilda's breakfast combination is: C + B + Y.

Condition 2: If she eats bread or yogurt, she also eats cereal.

Then Matilda's breakfast combination is: C + B or C + Y.

Condition 3: She never eats both cereal and yogurt.

Then Matilda's breakfast combination does not include is: C + Y.

Condition 4: She always eats bread or cereal.

Then Matilda's breakfast combination always includes is: C or B.

If Matilda eats bread (B) then according to Condition 2 she eats cereal (C) also. And since she eats both C and B she eats yogurt (Y) also.

But according to Condition 3 Matilda never eats both cereal and yogurt.

Hence she can never have all three for breakfast.

She cannot eat bread (B) alone [according to Condition 2], Matilda is left with only one option, i.e. Cereal (C).

Thus, Matilda eats Cereal for breakfast on Monday.

5 0

3 years ago

Part B

Yuki888 [10]

The answer is 2.625$ rounded up to 2.63$

3 0

3 years ago

Help please will give brainlist Find x+y

Leno4ka [110]

Answer:

Step-by-step explanation:

2y-5 and 95 are vertical angles so they are equal

$2y - 5 = 95$

$2y = 100$

$y = 50$

3x and 144 form a linear pair angle so

$3x + 144 = 180$

$3x = 36$

$x = 12$

x=12 and y=50 so

$12 + 50 = 62$

3 0

3 years ago

Read 2 more answers

Determine the sequence

balu736 [363]

1) neither
2) geometric sequence

5 0

3 years ago

Which expression is equivalent to ( 7^-2 x 3^5 ) ^-2

finlep [7]

The answer is 7^4 / 3^10.

8 0

1 year ago