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3 years ago

PLEASE HELP I HAVE 5 MINUTES LEFT AND IM HALFWAY DONE PLEASE HELP ASDHA;EFhTHS

Mathematics

1 answer:

galben [10]3 years ago

7 0

Answer:

12 is 52 i think. i am not sure about 11.

Step-by-step explanation:

im so sorry i know 11:(

I hope this helps on 12 tho

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Use the power-reducing formulas to rewrite the expression as an equivalent expression that does not contain powers of trigonome

ratelena [41]

Answer:

$x = 0.175\cdot (1-\cos 4\cdot \theta)$

Step-by-step explanation:

Let use the following trigonometric identities:

$\sin^{2}\theta = \frac{1-\cos 2\cdot \theta}{2} \\\cos^{2}\theta = \frac{1+\cos 2\cdot \theta}{2}$

Then, the equation is simplified by substituting its components:

$x = 1.40\cdot \left(\frac{1-\cos 2\cdot \theta}{2} \right)\cdot \left(\frac{1+\cos 2\cdot \theta}{2} \right)$

$x = 0.35\cdot (1-\cos^{2}2\cdot \theta)$

$x = 0.35\cdot \sin^{2}2\cdot \theta$

$x = 0.35\cdot \left(\frac{1-\cos 4\cdot \theta}{2} \right)$

$x = 0.175\cdot (1-\cos 4\cdot \theta)$

7 0

4 years ago

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60:£3.Give the answer in lowest terms

AysviL [449]

Answer:

20:£1

Step-by-step explanation:

To simplify a ratio is like like simplifying a fraction

Take 4/8 as an example. Find a number you can divide both numbers with. In this case, it's 4. 4 divided by 4= 1, and 8 divided by 4= 2. So, the simplified version of 4/8 is 1/2. Similarly, with the ration 60:£3, you find the number you can divided both numbers with. In this case, it is 3. 3 divided by 3= 1, and 60 divided by 3= 20.

Final Answer: 20:£1

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3 years ago

X^2+16x+64 can anyone show the work for this and find the factor.

Alexandra [31]

Answer:

should i simplify it? or factorise it?

I guess its factorise! So i m factorising!

x^2+16+64

(x)^2+2×x×8+(8)^2

(x+8)^2

=(x+8)(x+8)

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3 years ago

A unit rate is a rate in which the _ in the comparison is 1 unit.

Nikitich [7]

Answer:

3.1415967382

Step-by-step explanation:

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3 years ago

A car's speed is 45 miles per hour. How far will it go in 4 hours and 20 mins?

PIT_PIT [208]

Hi Quanzia25,

Solution:

45mph

45mph x 4hrs. = 180 miles in 4 hours

45 / 3 = 15

180 + 15 = 195

Answer:

The car has traveled 195 miles.

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3 years ago

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