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zimovet [89]
3 years ago
9

Use a calculator to find the trigonometric ratio to four decima place tan 23​

Mathematics
1 answer:
Aneli [31]3 years ago
4 0

Answer:

=0.4245 (4dp)

Step-by-step explanation:

tan(23)=0.4244748162

=0.4245 (4dp)

I hope this helps!

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Bill is 2 years older than his brother Will. If the product of their ages is one less than five times the sum of their ages, how
Advocard [28]

Answer:

Will's age = 9 years

Bill's age = 11years

Step-by-step explanation:

Let will age = x

Bill = x +2 since he is 2 years older

x(x+2) = 5( x +x+2) - 1

Opening brackets

x² + 2x = 5(2x + 2) - 1

x² + 2x = 10x + 10 - 1

x² + 2x = 10x + 9

Collect like terms

x² + 2x - 10x - 9 = 0

x² - 8x - 9 = 0

Solve quadratically using factorisation method by finding two factors of +9 that can add up to give -8, the coefficient of x.

The factors are -9 and +1

x² + x - 9x - 9 = 0

x(x + 1) -9( x +1)

x+1) (x -9) =0

x + 1 = 0 or x -9 =0

x = -1 or 9

Age can not be negative

Therefore,

Will's age = 9 years

Bill's age = x+2 = 9+2 = 11years

I hope this was helpful, please rate as brainliest

6 0
2 years ago
M∠6 is (2x – 5)° and m∠8 is (x + 5)°. What is m∠3?
erastovalidia [21]
I hope this helps you

4 0
3 years ago
Read 2 more answers
Find the surface area of a cylinder with a diameter of 18 and a height of 32. Use 3.14 for π. Round your answer to the nearest t
Ksenya-84 [330]

Answer: a = 2,315.5

Step-by-step explanation:

a = 2πrh+2πr²

a = 2π(9)(32) + 2π9²

a = 2π x 288 + 2π x 81

a = 1809.6 + 508.9

a = 2,315.5

(pls mark me the brainliest)

(theres a button that says "mark brainliest" on my answer)

7 0
3 years ago
some poeple where asked which there favourite school subject was, from a choiceof maths, english and science. how many people in
Sedaia [141]

Answer:

IS THERE MORE TO THE PROBLEM? NOT ENOUGH INFORMATION IS GIVEN

Step-by-step explanation:

5 0
3 years ago
What is the equation of this line?
quester [9]

A. y = 2x - 3

This is the correct answer

4 0
3 years ago
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