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3 years ago

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Which gives the best estimate and the exact product of (5.9)(8.28)? estimate: 40; exact product: 48.852 estimate: 48; exact prod

uct: 48.852 estimate: 400; exact product: 488.52 estimate: 480; exact product: 488.52

2 answers:

levacccp [35]3 years ago

5 0

Answer:

B. Estimate: 48; Exact Product: 48.852

Step-by-step explanation:

5.9 rounds to 6 and 8.28 rounds to 8. Therefore the estimate would be the product of 6 and 8 which is 48.

fomenos3 years ago

3 0

Answer:

its c

Step-by-step explanation:

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Fihding the Selling Price for a Given Profit

vivado [14]

Answer:

2.05 and 14.61

Step-by-step explanation:

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3 years ago

QUESTION 1: TRANSPORT Mr Dlamini transport people between Butterworth and East London using a bus which has a capacity of 100 pe

Dvinal [7]

From the series, it can be deduced that the sum of the first two terms will be 18.

<h3>How to calculate the series</h3>

From the information given, it was stated that the transport charge starts with a minimum charge of R8 and thereafter it was increased by R2 for each kilometre.

The series is also given as S. = 8 + 10 + 12 + 14 +... Therefore, the sum of the first two terms will be:

= 8 + 10

= 18

Expressing T2 in terms of S, and S2 will be T2 = S + S2.

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2 years ago

Look at the function f(x)=x^2-2. Which of the following describes the domain and range of the function and its inverse?

anygoal [31]

Answer:

A

Step-by-step explanation:

The function is a quadratic whose graph is a parabola. All parabolas have no limitations on their domain. This means the domain of the function is all real numbers.

This parabola has a minimum value since its leading coefficient is positive. Its vertex is at (0,-2). This means its range is all values greater than -2 or y ≥ -2.

An inverse of a function is its reflection across the y=x line. This results in (x,y) in the function becoming (y,x) in its inverse. The domain of the function becomes the range of the inverse and the range of the function becomes the domain of the inverse. Inverse has x ≥ -2 as its domain and all real numbers for its range.

6 0

4 years ago

Anyone help me. ....

weeeeeb [17]

Answer:

see explanation

Step-by-step explanation:

Using the rules of exponents

All the exponents inside the parenthesis are multiplied by the exponent outside the parenthesis.

Then

$\frac{m^{-7}n^{14} }{m^{-25}n^{40} }$ ÷ $\frac{m^{-21}n^{42} }{m^{-25}n^{40} }$

[ Using the rule $\frac{a^{m} }{a^{n} }$ = $a^{(m-n)}$ ]

= $m^{(-7-14)}$ $n^{(14-(-28)}$ ÷ $m^{(-15-10)}$ $n^{(25-(-15)}$

= $m^{-21}$ $n^{14+28}$ ÷ $m^{-25}$ $n^{25+15}$

= $\frac{m^{-21}n^{42} }{m^{-25}n^{40} }$

= $m^{(-21-(-25))}$ $n^{(42-40)}$

= $m^{(-21+25)}$ n²

= $m^{4}$ n² = $m^{x}$ $n^{y}$ , so x = 4 and y = 2

Then

$m^{x-2y}$ = $m^{4-2(2)}$ = $m^{4-4}$ = $m^{0}$ = 1 ← as required

6 0

3 years ago

If we changed the –0.14 to a 2 in the equation, what would happen to the graph?

MatroZZZ [7]

If -0.14 is changed to 2, the graph would become a positive graph, or it would be steeper, because it has a positive slope

The equation of the graph is given as:

$y = -0.14x + 3$

The above equation is a linear equation, which is represented as:

$y =mx + c$

Where m represents the slope of the linear equation.

By comparison, we have:

$m = -0.14$

i.e. the slope of the equation $y = -0.14x + 3$ is -0.14

When -0.14 is replaced with 2, the equation becomes

$y = 2x + 3$

And the slope of the new equation $y = 2x + 3$ is

$m =2$

2 is greater than -0.14, and 2 is positive.

This means that the graph would become a positive graph, or it would be steeper, because it has a positive slope

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3 years ago