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olasank [31]
3 years ago
9

Is y=3x linear or nonlinear

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0
Linear that is it  ugh i needed to make it 20 characters ok

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Write 6 17/20 as a decimal
djverab [1.8K]

Answer:

6.85

Step-by-step explanation:

6 17/20

Convert to improper fraction.

137/20

Divide.

= 6.85

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3 years ago
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What is the difference between the temperature -3 and 1
lisov135 [29]
That 1 is greater than 1 because 1 is positive and -3 is negative
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3 years ago
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A sphere has a diameter of 4 x 10^-3 mm. What is the approximate volume of the sphere? Use 3.14 for pi.
kolezko [41]

Answer:

3.349 \times {10}^{ - 10} \:  {mm}^{3}

Step-by-step explanation:

d = 4 \times  {10}^{ - 3}  \: mm \\ r = 2 \times  {10}^{ - 3}  \: mm \\ V_{sphere}  =  \frac{4}{3} \pi {r}^{3}   \\ = \frac{4}{3}  \times 3.14 \times {(2 \times  {10}^{ - 3} )}^{3} \\  = \frac{4}{3}  \times 3.14 \times 8\times  {10}^{ - 9}  \\ = \frac{100.48}{3}  \times   {10}^{ - 9}  \\  = 33.4933333\times   {10}^{ - 9}  \\  = 33.49 \times {10}^{ - 9} \\  = 3.349 \times {10}^{ - 10} \:  {mm}^{3}

8 0
3 years ago
Area unit conversion with whole numbers value 5 yards long and 4 wide = what in square feet?
Law Incorporation [45]
Poopjjjvgjg tj bejvevkq rvrj vrvirgivd
4 0
3 years ago
[tex]cos {}^{4} α+sin {}^{4} α= \frac{1}{4} (3+cos4α)<br>Prove:<br>​
asambeis [7]

Given:

\cos^4 \alpha+\sin^4\alpha=\dfrac{1}{4}(3+\cos 4 \alpha)

To prove:

The given statement.

Proof:

We have,

\cos^4 \alpha+\sin^4\alpha=\dfrac{1}{4}(3+\cos 4 \alpha)

LHS=\cos^4 \alpha+\sin^4\alpha

LHS=(\cos^2 \alpha)^2+(\sin^2 \alpha)^2

LHS=(\cos^2 \alpha+\sin^2\alpha)^2-2\sin ^2\alpha\cos^2 \alpha     [\because a^2+b^2=(a+b)^2-2ab]

LHS=(1)^2-2(1-\cos^2 \alpha)\cos^2 \alpha      [\because \cos^2 \alpha+\sin^2\alpha=1]

LHS=1-2\cos^2 \alpha+2\cos^4 \alpha

Now,

RHS=\dfrac{1}{4}(3+\cos 4 \alpha)

RHS=\dfrac{1}{4}[3+(2\cos^2 2\alpha-1)]        [\because \cos 2\theta=2\cos^2\theta -1]

RHS=\dfrac{1}{4}[2+2\cos^2 2\alpha]

RHS=\dfrac{1}{4}[2+2(2\cos^2 \alpha-1)^2]        [\because \cos 2\theta=2\cos^2\theta -1]

RHS=\dfrac{1}{4}[2+2(4\cos^4 \alpha-4\cos \alpha+1)]        [\because (a-b)^2=a^2-2ab+b^2]

RHS=\dfrac{1}{4}[2+8\cos^4 \alpha-8\cos \alpha+2]

RHS=\dfrac{1}{4}[4+8\cos^4 \alpha-8\cos \alpha]

RHS=1+2\cos^4 \alpha-2\cos \alpha

RHS=1-2\cos^2 \alpha+2\cos^4 \alpha

LHS=RHS

Hence proved.

8 0
3 years ago
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