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lina2011 [118]
3 years ago
11

Can you plz answer these 2 questions​

Mathematics
1 answer:
vampirchik [111]3 years ago
5 0

Answer:

sorry cant help but how are u on lesson 71 im only 8

Step-by-step explanation:

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Could you guys help me find the area of these please? i don't understand how to do this
vova2212 [387]

Answer:

for 9, the answer is 246.49

Step-by-step explanation:

This is area of a circle correct?

The formula is PI x radius squared.

3.14 x the radius, which is 5, squared

I am re-editing this

so sorry the answer is actually 78.54

The reason why it is 78.54 is that you need to square the radius before multiplying with PI.

7 0
3 years ago
Read 2 more answers
I need some help:
dedylja [7]

The unit rate is another way of saying speed, so we divide the distance over the time. We can pick on any row

If we pick row 1, then, speed = distance/time = 90/2 = 45

Row 2 says the same thing: 135/3 = 45

So does row 3: 225/5 = 45

and so on

Because the speed is 45 mph, the unit rate is 45 miles in one hour. The term "unit" implies how much distance can be covered in one unit of time, in this case 1 hour.

You have the correct answer. Nice work.

6 0
2 years ago
Find S11 for 1 + 2 + 4 + 8 +
Free_Kalibri [48]
Evaluating the given sequence, it is evident that the next number is twice the number prior to it. Thus, the given is a geometric sequence with first term (a1) equal to 1 and common ratio of 2. The geometric series may be calculated by the equation,
 
                                            Sn = a1 x (1 - r^n) / (1 - r)

where Sn is the sum of n terms in this case, n = 11. 
Substituting the known values, 
 
<span>                                      Sn = 1 x (1 - 2^11) / (1 - 2) = 2047
</span>
Thus, S11 is 2047. 
4 0
3 years ago
Sally is playing a board game and rolls two number cubes. Let A = {the sum of the number cubes is odd} and let B = {the sum of t
slega [8]
The Answer to the question is { }.<span>

This is because there are no answers that are odd and divisible by 2.</span>
4 0
3 years ago
Read 2 more answers
A $1,000.00 bond at 85 1/4 % pays 6.8 % annual interest. Calculate cost of bond.
stepladder [879]

Based on the par value of the bond and the percentage it was issued at, the cost of the bond is $852.50.

<h3>What is the cost of the bond?</h3>

The current cost of the bond is the present value of the bond's cashflows and its par value.

This is taken into account when the bond is issued at a certain percentage which in this case is 85 ¹/₄%.

The cost of the bond is:

= 1,000 x 85 ¹/₄%

= $852.50

Find out more on the cost of bonds at brainly.com/question/15567868.

#SPJ1

8 0
2 years ago
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