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Alisiya [41]
3 years ago
15

Which of the following options correctly represents the complete factored

Mathematics
1 answer:
jeka943 years ago
4 0

Answer:

(x^2 + 1)(x^2 + 4)

Step-by-step explanation:

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A CD is circular and has a diameter of 6 centimeters. Which is closest to the area of the CD? Use 3.14 for π
prohojiy [21]

Answer:

28.26 cm²

Step-by-step explanation:

Area of a circle = πr²

         r = diameter/2

         r = 6/2 = 3

A = (3.14)(3)²

A = 28.26 cm²

5 0
3 years ago
What is vaule of y when x=4'5
Degger [83]

Answer:

y = 2.096 or y = \frac{2\sqrt5+6}{5}}

Step-by-step explanation:

Given

y = \frac{4}{x} + \sqrt x + 0.2  - 5x

x = \frac{4}{5}

Required

Find y

y = \frac{4}{x} + \sqrt x + 0.2  - 5x

Substitute x = \frac{4}{5}

y = \frac{4}{4/5} + \sqrt{4/5} + 0.2 - 5 * 4/5

y = 5 + \sqrt{4/5} + 0.2 - 4

Collect like terms

y = \sqrt{4/5} + 5  + 0.2 - 4

y = \sqrt{\frac{4}{5}} + 1.2

Split the surd

y = \frac{\sqrt4}{\sqrt5}} + 1.2

y = \frac{2}{\sqrt5}} + 1.2

Rationalize

y = \frac{2\sqrt5}{\sqrt5*\sqrt5}} + 1.2

y = \frac{2\sqrt5}{5}} + 1.2

Take LCM and add

y = \frac{2\sqrt5+1.2*5}{5}}

y = \frac{2\sqrt5+6}{5}}

or solve as:

y = \frac{2*2.24+6}{5}}

y = \frac{10.48}{5}

y = 2.096

7 0
3 years ago
Is the statement true or false?<br> 4 - 2(3 + 7) = 4 – 2.3+2.7
Katen [24]

Answer:

Step-by-step explanation:

4-2(3+7)=4-2.3+2.7

4-2(10)=4+0.4

4-20=4.4

-16=4.4 which clearly is false

6 0
3 years ago
4. Explain why the melting point is difficult to measure.​
Usimov [2.4K]

Answer:

Heating sample too rapidly may cause the thermometer reading to differ from the actual temperature of the heat source. Why is a finely powdered sample used in a melting point measurement? Particles may not pack well.

Step-by-step explanation:

I had An assignment question like this

7 0
3 years ago
76, 74,75,76,78,74<br><br> find the median , mode , mean ,range and outlier
inn [45]

Answer:

median=75.5

mode=76

mean=453/6

mean=75.5

Step-by-step explanation:

8 0
3 years ago
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