Accuracy is how _______ a measurement is to the expected value'

Mathematics

1 answer:

elena-s [515]3 years ago

3 0

Answer:

Accuracy is how close a measured value is to an accepted value. Precision is how close measurements are to one another. To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.

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Carter sold 4 identical pillows for $54. For how much would Carter sell 10 of the same pillow?

marta [7]

Your answer should be:
135

5 0

3 years ago

Read 2 more answers

HELP PLEASE

Maurinko [17]

$\bf \cfrac{x^2-x-42}{x-6}\implies \cfrac{(x+7)\underline{(x-6)}}{\underline{x-6}}\implies x+7$

so.. the left-hand-side does indeed simplify to x+7, so the equation does check out.

however, notice something, for the equation of x+7, when x = 6, we get (6) + 7 which is 13.

BUT for the rational, we get $\bf \cfrac{x^2-x-42}{x-6}\qquad \boxed{x=6}\implies \cfrac{x^2-x-42}{\boxed{6}-6}\implies \stackrel{und efined}{\cfrac{x^2-x-42}{0}}$

so, even though the siimplification is correct, the rational or original expression is constrained in its domain.

6 0

4 years ago

Solve each equation. 8x^2-24=3x^2-9

Sauron [17]

$8 {x}^{2} - 24 = 3 {x}^{2} - 9$
$5 {x}^{2} = 15$
${x}^{2} = 3$
x equals about 1.732 or
$\sqrt{3}$

5 0

4 years ago

What is the length of CD in this diagram, ABC - EDC,

natima [27]

Answer:

Option A is the right option.

solution,

∆ABC~∆EDC

$\frac{bc}{cd} = \frac{ac}{ec} \\ \:$

putting the values,

$\frac{20 - x}{x} = \frac{20}{5} \\ or \: 5(20 - x) = 20x(cross \: multiplication) \\ or \: 100 - 5x = 20x \\ or \: - 5x - 20x = - 100 \\ or \: \: - 25x = - 100 \\ \: or \: x = \frac{ - 100}{ - 25} \\ x = 4$