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3 years ago

The rules which tell which calculations are done before others in an expression

1 answer:

3 0

BEDMAS

Brackets
exponents
division & multiplication }
addition & subtraction} -these 2 last ones can be done interchangably or from left to right

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]solomon needs to justify the formula for the arc length of a sector. which expression best completes this argument? the circumf

Anna35 [415]

Answer:

$\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}$ best completes this argument

Step-by-step explanation:

Circumference of circle = $\pi \cdot d$

Where d is the diameter of circle

We are given that if equally sized central angles, each with a measure of n°, are drawn, the number of sectors that are formed will be equal to $\frac{360^{\circ}}{n^{\circ}}$

So, Number of sectors = $\frac{360^{\circ}}{n^{\circ}}$

The arc length of each sector is the circumference divided by the number of sectors

$\Rightarrow \frac{\pi \cdot d}{\frac{360^{\circ}}{n^{\circ}}}$

Diameter d = 2r (r = radius)

$\Rightarrow \frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}$

Option b is true

Hence $\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}$ best completes this argument

7 0

3 years ago

2) Pranavi can hike 4 mile in 7% minutes. How long would it take her to hike<br> a mile?

Sergeeva-Olga [200]

To calculate this, we need to divide 7 minutes by 4 miles to see how long it takes her to hike 1 mile.
7/4 = 1.75 minutes/ mile
= 1 minute and 75 seconds = 2 minutes and 15 seconds.
Glad I could help and have a fantastic day!
Also, can you please mark my answer as the brainliest answer?
Thanks.

8 0

2 years ago

Find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. (Round your

Keith_Richards [23]

Answer:

Step-by-step explanation:

f'(x)=-sin x

$f'(x)=\frac{cos \frac{\pi }{3} -cos (\frac{-\pi }{3}) }{\frac{\pi }{3} -(\frac{-\pi }{3}) } \\-sin x=\frac{\frac{1}{2} -\frac{1}{2} }{\frac{\pi }{3} +\frac{\pi }{3} } \\sin x=0\\at x=c ,sin c=0,c=0$

c=0∈(-π/3,π/3)

4 0

3 years ago

I NEED HELP ASAP!!!! PLZZ HELP MEEEE!!!!! Which of the following lists is ordered from least to greatest?

mario62 [17]

Answer: D. -5, 0, 0.8, 1, 1 1/2

<em>Hope this helps!</em>

8 0

3 years ago

A club had a total of $1,520.50 in its bank account . At a budget meeting they decide to set aside 0.12 times the total amount t

marshall27 [118]

A club had a total of $1,520.50 in its bank account .

At a budget meeting they decide to set aside 0.12 times the total amount to travel.

so we have to find 0.12 times of $1,520.50

0.12 * 1520.50=182.46

so they will set aside $182.46 to travel

4 0

3 years ago