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3 years ago

4^3x(100/25)-5^0 what is this plz

Mathematics

1 answer:

REY [17]3 years ago

5 0

Answer:

255

Step-by-step explanation:

trust

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Select the correct answer.

kherson [118]

Answer:

d.2/6 has a repeating decimal form

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3 years ago

Simplify the following expres (- 4xy-2) - 5 (xy-2)-1

Vedmedyk [2.9K]

Step-by-step explanation:

(- 4xy - 2) - 5(xy - 2) - 1

-4xy - 2 - 5xy + 10 - 1

Solving like terms

-9xy + 7

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3 years ago

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Complete the solution of the equation find the value of y when x equals 2. -8x - 5y = -1

tatuchka [14]

Answer: y = -3

Step-by-step explanation:

-8x - 5y = -1

+8x +8x

-5y = 8x - 1

÷-5 ÷-5 ÷-5

y = $-\frac{8}{5}x + \frac{1}{5}$

y(2) = $-\frac{8}{5}(2) + \frac{1}{5}$

= $-\frac{16}{5} + \frac{1}{5}$

= $-\frac{15}{5}$

= -3

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3 years ago

If y varies directly as x and y-21 when x is 7, find x when y = -5.

klasskru [66]

Step-by-step explanation:

Since, y varies directly as x:

$\therefore \: y = kx..(1) \\ (k = constant \: of \: proportionality) \\ at \: y = 21 \: and \: x = 7 \\ 21 = k \times 7 \\ k = \frac{21}{7} = 3 \\ plugging \: k = 3 \: in \: equation \: (1) \\ y = 3x..(2) \\ plugging \: \: y = - 5 \: in \: (2)\\ - 5 = 3x \\ x = \frac{ - 5}{3} \\ \: \: \: \: \: \: \huge \red{ \boxed{x = - \frac{5}{3} }}$

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3 years ago

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Which linear inequality is represented by the graph?

Dovator [93]

Answer:

The answer to your question is the second choice (y ≥ 1/3x - 1)

Step-by-step explanation:

Process

1.- Find two points of the graph

A (0, -1)

B (3, 0)

2.- Find the slope

m = (0 + 1)/(3 - 0)

m = 1/3

3.- Find the equation of the line

y - y1 = m(x - x1)

y + 1 = 1/3(x - 0)

y + 1 = 1/3x

y = 1/3x - 1

4.- Find the equation of the inequality

We need the upper part of the line so the inequality must be

y ≥ 1/3x - 1

3 0

3 years ago