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2 years ago

Express 512 as a power of 2. a) 28 b) 277 c)299 d) 21010

Mathematics

1 answer:

mote1985 [20]2 years ago

7 0

Answer:

256^2

Step-by-step explanation:

256 power 2 is in a power of 2

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Following data, what would be the value of x?

kirill115 [55]

Answer:

The answer is C. 10

Step-by-step explanation:

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2 years ago

Read 2 more answers

Answer for number 12

aalyn [17]

Answer:

12 a. 4605 feet 12 b. 1,459,063 square feet

Step-by-step explanation:

For the perimeter, we simply add the lengths of each of the 5 sides together (or multiply 5 times one side length).

P = 5(921)

P = 4605 feet

For the area, we will use composition...add the area of the triangle to the area of the trapezoid.

For the area of the triangle, the formula is

$A=\frac{1}{2}bh$ .

Filling in our values gives us

$A=\frac{1}{2}(1490)(541)$ and

A = 403,045 square feet.

Now for the trapezoid. The formula for a trapezoid is

$A=\frac{1}{2}(b_{1}+b_{2})(h)$

where the b's represent the bases and the h represents the height. Filling in our values gives us

$A=\frac{1}{2}(921+1490)(876)$

Work inside the parenthesis first:

$A=\frac{1}{2}(2411)(876)$ and

A = 1,056,018

Now we add those together to get that area of the Pentagon is 1,459,063 square feet

4 0

2 years ago

Find two rational expressions a / b and c / d that produce the result x − 1 / x2 when using the following operations. Answers

Mars2501 [29]

Answer:

a) Let $\frac{a}{b}=\frac{-1}{x^2}, \text{ and } \frac{c}{d}=\frac{1}{x}$ .

Observe that

$\frac{a}{b}+\frac{c}{d}=\frac{-1}{x^2}+\frac{1}{x}=\frac{-x+x^2}{x^3}=\frac{x(x-1)}{xx^2}=\frac{x-1}{x^2}$

Let $\frac{a}{b}=\frac{1}{x}, \text{ and } \frac{c}{d}=\frac{1}{x^2}.$

Observe that

$\frac{a}{b}-\frac{c}{d}=\frac{1}{x}-\frac{1}{x^2}=\frac{x^2-x}{x^3}=\frac{x(x-1)}{xx^2}=\frac{x-1}{x^2}$

Let $\frac{a}{b}=\frac{x-1}{x}, \text{ and } \frac{c}{d}=\frac{1}{x}.$

Observe that

$\frac{a}{b}*\frac{c}{d}=\frac{x-1}{x}*\frac{1}{x}=\frac{(x-1)1}{x*x}=\frac{x-1}{x^2}$

Let $\frac{a}{b}=\frac{x-1}{x}, \text{ and } \frac{c}{d}=\frac{x}{1}.$

Observe that

$\frac{a}{b}\div\frac{c}{d}=\frac{x-1}{x}\div\frac{x}{1}=\frac{x-1}{x}*\frac{1}{x}=\frac{x-1}{x^2}$

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2 years ago

5. Jenny earns $30 a day working part time at a supermarket. Write an algebraic expression to

mestny [16]

A. 30d
This is because d is the amount of day so if she earns £30 per day the it’s the amount of days x her daily wage =
d x £30 =
30d
(The number always goes first in equations) I hope this helped.

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2 years ago

What statistical technique should be used when testing for differences in the number of athletes and non-athletes in a college p

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Answer:Chi-square is a nonparametric statistical procedure for nominal data.

Step-by-step explanation:

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2 years ago

Express 512 as a power of 2. a) 2*8* b) 27*7* c)29*9* d) 210*10*

Express 512 as a power of 2. a) 28 b) 277 c)299 d) 21010