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3 years ago

Please help me with 16-20

Mathematics

2 answers:

jasenka [17]3 years ago

7 0

Answer:

-4

Step-by-step explanation:

16-20 = -4

Sunny_sXe [5.5K]3 years ago

4 0

Answer:

16 a. -5·4⁻⁴ = -0.01953125

16 b. 7·4⁻³ = 0.109375

Step-by-step explanation:

16 a. -5·4⁻⁴ is the same as -5 / 4⁴ is the same as -5/256

the same applies to b. raise to a negative exponent is the same as placing that factor in a denominator.

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What is the following sum? 2 (RootIndex 3 StartRoot 16 x cubed y EndRoot) 4 (RootIndex 3 StartRoot 54 x Superscript 6 Baseline y

san4es73 [151]

Equivalent expressions are expressions that have the same value, and can be used interchangeably.

The result of the sum $2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5})$ is $4x\sqrt[3]{2y} + 8x^2y\sqrt[3]{2y^2})$

The expression is given as:

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5})$

Rewrite the expression as:

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5}) = 2 (\sqrt[3]{2^4x^3y}) + 4 (\sqrt[3]{3^3 \times 2x^6y^5})$

Evaluate the roots

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5}) = 2 (2x\sqrt[3]{2y}) + 4 (3x^2y\sqrt[3]{2y^2})$

Open the brackets

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5}) = 4x\sqrt[3]{2y} + 12x^2y\sqrt[3]{2y^2})$

The above expression cannot be further simplified.

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Read more about equivalent expressions at:

brainly.com/question/2972832

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2 years ago

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Slope 1.5, passes through (0,5)

Phantasy [73]

Answer:

y = 1.5x + 5

Step-by-step explanation:

The slope(m) is 1.5

The line passes through (0,5)

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1.5 $\frac{y - 5}{x - 0}$

Cross multiplying gives;

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3 years ago