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Dmitry_Shevchenko [17]
4 years ago
10

I just need help for 3 questions!

Mathematics
1 answer:
Hoochie [10]4 years ago
8 0
4.1x+29
5(m-100)
I understand the third one but please correct me if I'm wrong
You might be interested in
Find the sale price.<br> Original price: $50<br><br> Discount: 15%<br><br> Sale Price Is:
White raven [17]
The correct answer would be 42.50

Work:

50 divided by 100 = .5

.5 * 15 = 7.5

50 - 7.5 = 42.50.
5 0
4 years ago
20 squared root is between what two integers? add explanation
lutik1710 [3]
C: 4 and 5, because 5x4=20 hope it helps
7 0
3 years ago
10 .find the partial sum S10 of the arithmetic series with a1 = 4, d = 5.
Crazy boy [7]

Answer:

S10 = 320

Step-by-step explanation:

The formula for calculating the sum of the nth term of an AP is expressed as

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

Given

a = 4

d = 5

n = 10

S10 =10/2{2(5)+(10-1)5}

S10 =5{10+9(6)}

S10 =5{10+54}

S10 = 5(64)

S10 = 320

Hence the sum of the first ten terms of the sequence is 320

8 0
3 years ago
Let's illustrate the idea of a sampling distribution in the case of a very small sample from a very small population. The given
Olegator [25]

Answer:

a:  sample mean: 130.2 pounds

This is not the population mean

Step-by-step explanation:

To find the mean weight of the sample, add up all the values and divide by the total number of values entered.  In this case, 10, so we have...

mean:  (136 + 99 + 118 + 129 + 125 + 170 + 130 + 128 + 120 + 147)/10 =

1302/10 = 130.2

This is not the population mean.  It is the mean of the sample.  We would have to know more information to make a conjecture about the population mean.

4 0
3 years ago
A true-false test contains 21 questions. In how many different ways can this test be completed.
KatRina [158]

There are 5.1090942e+19 different ways this test can be completed

<h3>In how many different ways can this test be completed?</h3>

The given parameters are:

Questions, n =21

Options = 2 i.e. true or false

The number of different ways this test can be completed is calculated as:

Ways = n!

Substitute 21 for n in the above equation.

So, we have:

Ways = 21!

Expand the above equation

Ways = 21 * 20 * 19 * ...... 1

Evaluate the products

Ways = 5.1090942e+19

Hence, there are 5.1090942e+19 different ways this test can be completed

Read more about factorials at:

brainly.com/question/25997932

#SPJ1

8 0
2 years ago
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