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2 years ago

Find the value of 21.03 + 80.4 - 21.03

Mathematics

2 answers:

astraxan [27]2 years ago

7 0

Answer:

80.4

Step-by-step explanation:

21.03 + 80.4 - 21.03

21.03 - 21.03 cancel each other out because it equals 0.

The equation becomes 0 + 80.4 = 80.4

Bumek [7]2 years ago

4 0

Solution: 80.4

Process:

21.03 + 80.04 = 101.43

*Use an Additional 0 as a Placeholder*

101.43 - 21.03 = 80.04 A.K.A 80.4

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Step-by-step explanation:

Between each term you are multiplying the previous term by 2, making 2 the common ration of the sequence.

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3 years ago

Sin(60-theta)sin(60+theta)

ehidna [41]

Step-by-step explanation:

$\sin(60 - \theta) \sin(60 + \theta) \\ = \{ \sin(60) \cos( \theta) - \sin( \theta) \cos(60) \} \{ \sin(60) \cos( \theta) + \cos(60) \sin( \theta) \} \\ = \{ \frac{ \sqrt{3} }{2} \cos( \theta) - \frac{1}{2} \sin( \theta) \} \{ \frac{ \sqrt{3} }{2} \cos( \theta) + \frac{1}{2} \sin( \theta) \} \\ \\$

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therefore:

$= \{ {( \frac{ \sqrt{3} }{2}) }^{2} { \cos }^{2} \theta \} - \{ {( \frac{ \sqrt{3} }{2} )}^{2} { \sin }^{2} \theta \} \\ \\ = \frac{3}{4} { \cos }^{2} \theta - \frac{3}{4} { \sin}^{2} \theta$

factorise out ¾ :

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2 years ago

Read 2 more answers

(30 POINTS AND BRAINLIEST FOR BEST)

Romashka-Z-Leto [24]

Part A)

Multiply the amount he earned by 8.5%

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Part B)

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2 years ago

The average price of a gallon of milk has constantly increased by $0.07 per year. In 2002, a gallon of milk cost $2.75. Which eq

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Step-by-step explanation:

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2 years ago

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First you must acknowledge that you are dealing with a line therefore you must write linear equation or linear function in this case.

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Then calculate the slope m using the coordinates of two points. Let say A(x1, y1) and B(x2, y2),

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Now pick a point either A or B and insert coordinates of either one of them in the linear equation also insert the slope you just calculated, I will pick point A.

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r3t40

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2 years ago

Find the value of 21.03 + 80.4 - 21.03 ​

Find the value of 21.03 + 80.4 - 21.03