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3 years ago

What is the answer 2( 4.8j + 4.57 ) ≤ - 19.06 – 18.6j

Mathematics

1 answer:

vesna_86 [32]3 years ago

7 0

Answer:

j $\leq$ -1

Step-by-step explanation:

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Which of the following expressions are equivalent to 10 – 12? Choose all answers that apply:

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Its B

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What is the GCF of 8 and 20 O 8 O2 O 4 O 10

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What is the GCF of 8 and 20

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3 years ago

Judy thinks there will be 325 people at the county fair on Friday, while Atticus thinks that there will be 600 people. On Friday

lana66690 [7]

Answer:

-Judy is closest to real value.

-% difference is 4.6%

Step-by-step explanation:

-We calculate the margin of errors for both Judy and Atticus:

$ME_j=|Real value -Assumed|\\\\=|452-325|\\\\=127\\\\\\ME_a=|Real \ Value- \ Assumed|\\\\=|600-452|\\\\=148\\\\ME_a>ME_j$

We realize that Judy's assumed value was nearer to the eal value than Atticus'.

The percentage ME difference is calculated as:

$\% ME=\frac{ME}{Real \ Value}\\\\=\frac{148-127}{452}\\\\=0.04646=4.6\%$

Hence, the % error difference is 4.6%

8 0

3 years ago

Need some help! help giving 10 points

steposvetlana [31]

Answer:

The remaining lenghts are $x = 20.364\,cm$ and $y = 12.925\,cm$ .

Step-by-step explanation:

Given that there are two triangles opposite to each other and between two parallel lines, then both are similar, meaning than following relationships exist:

$\frac{AC}{CD} = \frac{BC}{CE} = \frac{AB}{DE}$ (1)

If we know that $AC = 11\,cm$ , $CD = 28\,cm$ , $BC = 8\,cm$ and $DE = 32.9\,cm$ , then the missing lengths are, respectively:

$\frac{11\,cm}{28\,cm} = \frac{8\,cm}{x}$

$x = \frac{(28\,cm)\cdot (8\,cm)}{11\,cm}$

$x = 20.364\,cm$

$\frac{11\,cm}{28\,cm} = \frac{y}{32.9\,cm}$

$y = \frac{(11\,cm)\cdot (32.9\,cm)}{28\,cm}$

$y = 12.925\,cm$

The remaining lenghts are $x = 20.364\,cm$ and $y = 12.925\,cm$ .

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3 years ago