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2 years ago

What is the estimated quotient of 57.8/81

Mathematics

1 answer:

Brut [27]2 years ago

4 0

The answer to this is : 0.75 (.75)

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Sin theta=-1/2 then cos theta=

zepelin [54]

Answer:

Step-by-step explanation:

Step one:

Applying the SOH CAH TOA principle

assuming all dimensions are in cm

Step two:

Given data

opposite= 1 cm

hypotenuse= 2 cm

<h3>we can now solve for θ</h3>

Sin(θ)= opp/hyp

Sin(θ)= 1/2

Sin(θ)= 0.5

θ= sin-1 0.5

θ= 30°

hence from tables cos 30°= 0.866

4 0

3 years ago

Simplify the polynomial (4n² + 3n – 5) − (2n² + 3n - + 6)

Veseljchak [2.6K]

Answer:

2n² + 1

Step-by-step explanation:

Given polynomial:

(4n² + 3n – 5) − (2n² + 3n - 6)

Solution:

Removing parentheses,we obtain

$4n {}^{2} + 3n - 5 - 2n {}^{2} - 3n + 6$

Combine like terms:

$4n { }^{2} - 2n {}^{2} + 3n - 3n - 5 + 6$
$2n { }^{2} + 0 + 1$
$\boxed{2n {}^{2} + 1}$

Done!

Order:BPEMDAS

7 0

1 year ago

An electronic store is advertising a discount of 18 percent off the inventory. Constantine buys a DVD player that cost $300. Wha

mel-nik [20]

100 % minus 18 % is 82% or .82

So multiply the price by .82 to get the sale price

300(.82)= 246

7 0

3 years ago

Rectangle HYGT has a perimeter of 170 inches. If the length is 10x - 7

frozen [14]

Answer:

The wide of the rectangle = 42 inches

The length of the rectangle = 43 inches

Step-by-step explanation:

Step(i):-

Given that the length of the rectangle = 10x-7

Given that the width of the rectangle = 6x +12

The perimeter of the rectangle = 2(length + width)

Given that the perimeter of the rectangle = 170

Step(ii):-

2(length + width) = 170

length + width = 85

10x-7 +6x +12 =85

16x +5 = 85

16x = 85-5 = 80

x = $\frac{80}{16}$

x = 5

Final answer:-

The length of the rectangle = 10(5)-7 = 50-7 = 43

The wide of the rectangle = 6x +12 = 6(5) + 12 = 30+12 =42

5 0

2 years ago

HELP ASAP!!!! WILL GIVE BRAINLIEST! Tamara bought yarn for $39 and 2 pairs of knitting needles. Her total cost for the yarn and

Alona [7]

Answer:

2,3,5

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers