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3 years ago

How to solve this?????????????

Mathematics

1 answer:

RideAnS [48]3 years ago

6 0

Answer: 6.25 cm

Step-by-step explanation:

Area of parallelogram $A=base\times height$

Using base as AB and height as DE

$Area=8\times 5$

Now, using base BC and height as DF

$Area=6.4\times x$

Equating area

$8\times5=6.4\times x\\x=6.25\ cm$

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During curfew Mr and Mrs Langbauer like to go for a walk. Mr. Langbauer keeps track of their time and total distance walked. He

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Answer:

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Step-by-step explanation:

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3 years ago

Sound City sells the ClearTone-400 satellite car radio. For this radio, historical sales records over the last 100 weeks show 4

Ksivusya [100]

Answer:

See below

Step-by-step explanation:

$\bf \mu(x)$ is the average

$\bf \mu(x)=\frac{4*0+33*1+39*2+12*3+8*4+4*5}{100}=\frac{199}{100}=1.99\;radios/week$

$\bf \sigma^2(x)$ is the variance

$\bf \sigma^2(x)=\frac{4*(0-1.99)^2+33*(1-1.99)^2+39*(2-1.99)^2+12*(3-1.99)^2+8*(4-1.99)^2+4*(5-1.99)^2}{100}=\frac{128.99}{100}=1.2899$

$\bf \sigma(x)$ is the standard deviation

$\bf \sigma(x)=\sqrt{variance}$

$\bf \sigma(x)=\sqrt{1.2899}=1.1357\;radios/week$

7 0

4 years ago

Fill in the blank to make the expression a perfect square.<br> v^2 - 18v + ?

Oliga [24]

Answer: (v - 9)^2 - 81

Step-by-step explanation: Use the formula (b/2)^2 in order to create a new term to complete the square.

Hope this helps! :) ~Zane

5 0

3 years ago

What is the measure of A? (solve to the nearest WHOLE DEGREE)

swat32

Answer:

A = 0.507 or 29 degrees

Step-by-step explanation:

5 = tanA * 9

inv tan = 5/9

angle A = 0.507

angle A = 29 degrees

6 0

4 years ago

Simplify (2+2i) divided by (1-i)

Verdich [7]

Answer: 2i

Step-by-step explanation:

$\frac{2+2i}{1-i}$

$=\frac{\left(2\cdot \:1+2\left(-1\right)\right)+\left(2\cdot \:1-2\left(-1\right)\right)i}{1^2+\left(-1\right)^2}$

$=\frac{4i}{2}$

$=2i$

3 0

3 years ago

How to solve this?????????????​

How to solve this?????????????