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mr_godi [17]
3 years ago
5

The ribbon on a roll is 3 1/2m long. Joe wants to cut pieces of ribbon that are each 1/6 m long. he needs 50 pieces. how many ro

lls will he need?
​
Mathematics
1 answer:
Afina-wow [57]3 years ago
4 0

Anggggggggggggggu

Step-by-syuuyyuuytion:

gggggggg

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MODELING WITH MATHEMATICS The fire escape forms a right triangle, as shown. Use the Pythagorean Theorem to approximate the dista
anastassius [24]

Answer:

x = 14.13ft

Step-by-step explanation:

Given

See attachment for illustration

Required

Find x

To do this, we apply Pythagoras theorem.

From the attachment, the length of the hypotenuse is 16.7ft

While the length of the opposite/adjacent is 8.9ft

Length x is calculated using:

16.7^2 = 8.9^2 + x^2

x^2 = 16.7^2 - 8.9^2

x^2 = 199.68

Take square roots

x = \sqrt{199.68

x = 14.13ft

5 0
2 years ago
What ia cos 16°? Please help me
LuckyWell [14K]

This is a terrible question. Send the publisher a nasty note.

First let's answer the question.

Cosine is adjacent over hypotenuse, so the cosine of the angle labeled 16 degrees is 24 (the adjacent side to 16 degrees) divided by 25 (the hypotenuse).

Answer: 24/25

---------

Now I'm going to complain about the question.  24/25 is of course 0.96 exactly, while

cos 16° ≈ 0.96126169593831886191649704855706487352569

They're not the same, and never think 24/25 is the cosine of 16 degrees.  It's approximately the cosine of 16 degrees; there's a big difference.

The cosine of 16 degrees is some awfully complicated algebraic number, a zero of some high degree polynomial with integer coefficients.  Worse yet, the angle whose cosine is 24/25 is almost certainly a transcendental number, not the zero of any such polynomial.

Trigonometry as practiced forces approximations to be employed.  Let's not sweep that under the rug in the questions, please.

5 0
3 years ago
5 1/4% of what number is 42
valina [46]

Answer:

36.75%

Step-by-step explanation:

5 1/4% = 5.25

42-5.25= 36.75%

6 0
2 years ago
What equation matches the graph?
puteri [66]

Answer:

b

Step-by-step explanation:

3 0
2 years ago
Find the value of the expression 4a^4-2b^2+40 when a = 2 and b=7
Sonbull [250]

6 would be your answer

6 0
3 years ago
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