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lidiya [134]
2 years ago
8

Joshua made note of all the bicycles and cars he could see parked or locked on a

Mathematics
1 answer:
Mars2501 [29]2 years ago
3 0

Answer:

56

Step-by-step explanation:

11*4=44

6*2=12

44+12=56

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The first term of an arithmetic sequence is 7 and the sixth term is 22. Find(a)the common difference;(2)(b)the twelfth term;(2)(
SVEN [57.7K]

d = 3 , a₁₂ = 40 and Sx_{100} = 7775

In an arithmetic sequence the nth term and sum to n terms are

<h3>• an = a₁ + (n-1)d</h3><h3>• S_n = \frac{n}{2}[2a + (n-1)d]</h3><h3>where d is the common difference</h3><h3>a₆ = a₁ + 5d = 22 ⇒ 7 + 5d = 22 ⇒ 5d = 15 ⇔ d = 3</h3><h3>a₁₂ = 7 + 11d = 7 +( 11× 3) = 7 + 33 = 40</h3><h3>S₁₀₀ = \frac{50}{2}[(2×7) +(99×3)</h3><h3>       = 25(14 + 297) = 25(311)= 7775</h3>
7 0
3 years ago
Which of the following is an example of the Associative Property?
photoshop1234 [79]
(13 + 20) + 15 = 13 + (20 + 15)
3 0
3 years ago
A stick is 20cm long.A student makes 5% error in measuring the stick.find two possible values for the student's measurement​
marishachu [46]

Answer:

16cm

24cm

Step-by-step explanation:

8 0
3 years ago
Find the area of each circle in terms of PI, the circles diameter is 2cm, what do i do know?
choli [55]
Given diameter 2cm
Find the area of a circle 
the formula for area of a circle 
A = pi r^2
the diameter is the radius times two 
so to find the radius given the diameter 2/2 = 1
radius is 1cm
pi is ~3.14
A = (3.14) * (1)^2
A = (3.14) * 1
A = 3.14

Hope this helps :)
7 0
3 years ago
What is the mean, median, mode, and range of the numbers 8,15,3,6,13,9
ivolga24 [154]

Hello There!

To find the mean, add up all the numbers and divide according to how many numbers there are. The mean for this set would be <em>"9"</em>

<em></em>

To find the median, place the numbers in value order and find the middle. if there is no middle, add up the two numbers in middle and divide by 2. In this set, the median would be <em>"8.5"</em>

<em></em>

To find the mode or modal value, it is best to put the numbers in order. Then count how many of each number. A number that appears most often is the mode. In this set, there would be no mode.

The range of a set of data is the difference between the highest and lowest values in the set. In this set, the range would be <em>"12"</em>

4 0
3 years ago
Read 2 more answers
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