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icang [17]
3 years ago
7

If n = 4, the value of the expression 28 – 12 +

la1" title=" \sqrt{n - 2} " alt=" \sqrt{n - 2} " align="absmiddle" class="latex-formula">
is 15 121 17/2 17​
Mathematics
1 answer:
Svetllana [295]3 years ago
4 0

Answer: the answer is 17 letter B

Step-by-step explanation:

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The radius of a circle is 8 inches. What is the angle of an arc 2π inches long?
Y_Kistochka [10]

Answer:

π/4 radians

Step-by-step explanation:

The arc length formula is s = rФ, where Ф is the central angle (in radians).

Here, r = 8 inches and s = arc length = 2π inches.  We need to find the central angle, Ф.  The formula given above is s = rФ, or, equivalently,

Ф = s/r.

Here, the central angle is Ф = s/r = 2π/8, or π/4 radians.

3 0
3 years ago
Find the explicit formula for the given sequence 1/4, 3/4, 5/4, 7/4​
Harlamova29_29 [7]

Step-by-step explanation:

d=(3/4)-(1/4)=(5/4)-(3/4)=(7/4)-(5/4)=1/2

then it is an arithmetic sequence

by using this equation :

a(n) = a1 +(n-1)d

and we have : a1=(1/4),  d=(1/2)

So:

Explicit formula: a(n) = (1/4) +(n-1)*(1/2)

<em>hope this helps </em>

<em />

8 0
3 years ago
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Please help.. I got stuck on this question please help and explain
Inessa [10]
Jay is wrong about his claim
8 0
3 years ago
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What is the answer you this question
8_murik_8 [283]
Hello!

First, you will need to subtract -2 from 4 (4-(-2)). You'll need to do this because to find the slope, you'll need to subtract y² w/ y1 or 4-(-2) and divide it by x² - x1 or -1-(-3). So once you set up the equation it'll look like this...

4-(-2)/-1-(-3)

Now after you've subtracted the numbers, your equation will look like this...

6/2

You'll then divide 6 by 2 and your slope will be 3

I hope this helps!
3 0
3 years ago
HELP ASAP 2 and 3!! please :)
damaskus [11]

Answer:

2. D. division property of equality

3. B. transitive

Step-by-step explanation:

2. well, we divide both sides by the same factor 3.

3. the same reason as for 4. we are using that if A = B, and B = 30, then A =30 in both lines.

5 0
3 years ago
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