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Pavlova-9 [17]
2 years ago
10

I don’t understand math so can you help me?

Mathematics
2 answers:
LekaFEV [45]2 years ago
7 0
I know the volume is 6.5 X 3 = 19.5 X 2 = 39 that’s the volume
chubhunter [2.5K]2 years ago
4 0
Surface area = 6.5x3 + 6.5 x 2 + 3 x 2 = 77
You might be interested in
Mops
Ipatiy [6.2K]

Answer:

270

Step-by-step explanation:

For any arithmetic sequence

nth term is given by

nth term = a + (n-1)d

where a is first term,

d is common difference

d is given by nth term - (n-1)th term

sum of n terms given by

sum = n/2(2a + (n-1)d)

________________________________________________

Given arithmetic sequence

-2,0,2,4,6,8...

first term a = -2

lets take third term as nth term and second term as (n-1)th term to find common difference d.

d = 2 - 0 = 2

using a = -2 , d = 2, n = 18

thus, sum of first 18 terms = n/2(2a + (n-1)d)

                                           =18/2( 2*(-2) + (18-1) 2)

                                           =9 ( -4 + 34)

                                           =9 ( 30) = 270

Thus, sum of first 18 terms is 270.

7 0
3 years ago
Felix spent $12 on a movie ticket and x amount of money on snacks. He spent no more than a total of $22 dollars. Which inequalit
adoni [48]
$12+X is less than or equal to $22
6 0
3 years ago
What is the value of x? Please help me
Travka [436]

Answer:

x=33

Step-by-step explanation:

because DC and AB are the same, x must be 33.

7 0
3 years ago
How many eggs are 1/4 of a dozen
poizon [28]
3. Because there are 12 in a dozen. 12 divided 4 is 3. :) 
6 0
3 years ago
Read 2 more answers
Please help 20 points!!!!!
skad [1K]

Three students want to estimate the mean backpack weight of their schoolmates. To do this, they each randomly chose 8 schoolmates and weighed their backpacks. Then as per the given sample data,

(a) The sample means of the backpacks are: 6.375,6.375,6.625

(b) Range of sample means: 0.25

(c)The true statement is: The closer the range of the sample means is to 0, the less confident they can be in their estimate.

For the first sample, mean= 6.375

For the second sample, mean= 6.375

For the third sample, mean= 6.625

Range of sample means=Maximum Mean- Minimum Mean

                                        = 6.625 - 6.375

                                        = 0.25

The students will estimate the average backpack weight of their classmates using sample means, the true statement is:

The closer the range of the sample means is to 0, the more confident they can be in their estimate.

Learn more about range here:

brainly.com/question/24326172

#SPJ1

6 0
2 years ago
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