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2 years ago

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

Mathematics

2 answers:

Sholpan [36]2 years ago

6 0

Answer:

15.625

Step-by-step explanation:

egoroff_w [7]2 years ago

3 0

Answer:

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

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ankoles [38]

Simplify the radical, then combine the numbers.
-131

4 0

3 years ago

How many terms are in the arithmetic sequence 1313, 1616, 1919, ……, 7070, 7373?

Nataliya [291]

To find the number of terms in the arithmetic sequence, we need to use the formula
$a_{n}= a_{1}+(n-1)d$
where $a_{n}$ is the nth number, $a_{1}$ is the first number, n is the number of terms and d is the difference of the two consecutive numbers.
7373 = 1313 + (n - 1)(303)
7373 = 1313 + 303n - 303
7373 = 1010 + 303n
7373 - 1010 = 303n
6363 = 303n
6363 ÷ 303 = n
n = 21

Therefore, there are 21 terms in the arithmetic sequence given.

7 0

3 years ago

7 × (–3) × (–2)2 = ? A. 84 B. 48 C. –84 D. –48

Dahasolnce [82]

7 × (-3) ×(-2)2 =

7 × -3 × -4 = (you have to eliminate all parenthesis in the equation.)

7 × -12 = -84

so your answer would be: C

3 0

3 years ago

Read 2 more answers

Knight and Haslam (2010) found that office workers who had some input into the design of their office space were more productive

sleet_krkn [62]

Answer:

1. Option A

2. Option A

Step-by-step explanation:

The independent variable is the one which affects the other variable. Here two variables "design of office space" and "control by managers" control the Productivity and well-being of the workers.

Hence, the independent variable is Control of the office manager

Option A

2. The dependent variable is the one which gets affected by the independent variable and in this case it is the Productivity and well-being of the workers.

Option A

5 0

2 years ago

Based on information from previous years, 40% of the fans at each of a baseball team's Games are female. At one of the team's Ga

SSSSS [86.1K]

I think it is 1200 people. Because if 40% are female and there are 480 females, then do 480 x 2 and that equals 960 then half of 480 is 240 so add 960 to 240 and you get 1200 as the total amount of people there. I'm not sure if it's right, but it should be.

6 0

3 years ago