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Amiraneli [1.4K]
3 years ago
15

Determining the Difference in Means

Mathematics
2 answers:
Natali [406]3 years ago
7 0

Answer:

its 3mm i promise its right pls make me brainliest

Step-by-step explanation:

BartSMP [9]3 years ago
4 0

Answer:

15.27 +12.05

Step-by-step explanation:

15.27 +12.05

Сондай

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Effective Rate find the effective rate of interest corresponding to a nominal rate of 7.5% per year compounded.
Jlenok [28]

Answer:

(A) 7.5 %

(B) 3.75 %

(C) 2.5%

(D) 0.625 %

Step-by-step explanation:

We have given effective rate of interest r = 7.5%

(a) Annual rate of interest will be equal to 7.5 %

(B) As we know that 1 year = 12 months

And interest is compounded semiannually

1 semiannual = 6 months

So semiannual rate of interest will be equal to \frac{7.5}{2}=3.75 %

(c) 1 quarter = 4 month

So number of period in an year = 3

So rate of interest quarterly =\frac{7.5}{3}=2.5 %

(D) Amount when amount is compounded monthly '

So number of period in an year = 12

So rate of interest =\frac{7.5}{12}=0.625 %  

3 0
3 years ago
What is the value of x, when x2 + 5 = 21?
djverab [1.8K]

Hey there!

  • \bold{x^2+5=21}
  • <em>Firstly, subtract by the number \bold{5}  on each of your sides</em>
  • \bold{x^2+5-5=21-5}
  • \bold{Cancel:5-5} because it gives us the result of \bold{1}
  • \bold{Keep:21-5}  because it equals: \bold{16}
  • \bold{x^2=16}
  • <em>Nextly, we have to take our square root </em>
  • \bold{x=}±\bold{\sqrt{16}}
  • <em>Solve the square root and you have found your answer</em>
  • <em>\boxed{\boxed{\bold{Answer:x=4[or]x=-4}}} \bold{\checkmark}</em>

Good luck on your assignment and enjoy your day!

~\bold{LoveYourselfFirst:)}

4 0
3 years ago
A Ferris wheel rotates 9π/8 radians prior to making a stop. The total height of the Ferris wheel is 246 ft. How far around did t
WARRIOR [948]

Answer:

The ferris wheel travelled 434.717 ft.

Step-by-step explanation:

Assuming that the ferris wheel is a perfect circle, then it's height is the same as the diameter of the circle, therefore it's radius is:

radius = height/2 = 246/2 = 123 ft

The distance travelled by the ferris wheel is the same as the length of the arc created by a angle of (9pi/8). The length of an arc is given by:

length = r*(angle in radians)

length = 123*(9pi/8)

length = 434.717 ft

The ferris wheel travelled 434.717 ft.

5 0
3 years ago
I need a little help :)
Naily [24]

So firstly, square root 9a^2 and 49: 3a+7\sqrt{b}-a+\sqrt{b}


Next, combine like terms, and your answer will be 2a+8\sqrt{b} , or the third option.

3 0
3 years ago
How would you solve this problem 999 + 587 = 1000 + what = what ? How would this problem be solved
bija089 [108]

Answer:

2,586

Step-by-step explanation:

Add 1000+1000

2000

Since its 999 not 1000 subtract 1

1999

Now add 1 and subtract 1 from 587

Then add 2000 with 586

2,586

3 0
3 years ago
Read 2 more answers
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