1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garik1379 [7]
3 years ago
12

find the sum of even numbers between 1001 and 10,000 (Arithmetic progressions) DO STEP BY STEP PLEASE ​

Mathematics
1 answer:
love history [14]3 years ago
7 0

Step-by-step explanation:

arithmetic progression

even numbers between 1001 and 10000

1002,1004,.......9998

Tn=a+(n-1)d

Tn = 9998 last term in the progression of even numbers

a = 1002 first term

d = 2 distance

9998=1002+(n-1)(2)

8996=2n-2

8998=2n

n = 4499 the number of terms

sum = n/2 (a+Tn) = 4499/2(1002+9998)

= (4499/2)(11000) = 24744500

Logic:

notice what happens when you add the first and last terms

1002+9998=11000

1004+9996=11000

.......

You might be interested in
Two chemists working for a chicken fast-food company, have been producing a very popular sauce. Let’s call then Jesse and Mr. Wh
a_sh-v [17]

Answer:

Check the explanation

Step-by-step explanation:

Let \overline{x} and \overline{y} be sample means of white and Jesse denotes are two random variables.

Given that both samples are having normally distributed.

Assume \overline{x} having with mean \mu_{1} and \overline{y} having mean \mu_{2}

Also we have given the variance is constant

A)

We can test hypothesis as

H0: \mu_{1} =  \mu_{2}H1: \mu_{1} > \mu_{2}

For this problem

Test statistic is

T=\frac{\overline {x}-\overline {y}}{s\sqrt{\frac {1}{n1} +\frac{1}{n2}}}

Where

s=\sqrt{\frac{(n1-1)*s1^{2}+(n2-1)*s2^{2}}{n1+n2-2}}

We have given all information for samples

By calculations we get

s=2.41

T=2.52

Here test statistic is having t-distribution with df=(10+7-2)=15

So p-value is P(t15>2.52)=0.012

Here significance level is 0.05

Since p-value is <0.05 we are rejecting null hypothesis at 95% confidence.

We can conclude that White has significant higher mean than Jesse. This claim we can made at 95% confidence.

3 0
3 years ago
How to get smarter in math?
anastassius [24]
Practice, practice & practice.
8 0
3 years ago
Read 2 more answers
Help ASAP I’ll give brainliest how do u find this out or how do u think we could find this out
emmainna [20.7K]

Answer:

9526/87

Step-by-step explanation:

87·x=9,526

x=9526/87

3 0
2 years ago
Solve:
Temka [501]

Answer:

a= -5

Step-by-step explanation

PEMDAS

8 0
3 years ago
How to solve and answer using elimination
grin007 [14]

Answer:

the answer is:

x=6

y=7


4 0
3 years ago
Other questions:
  • What is the answer for a magic square for the number 18?
    7·2 answers
  • Work out the area of this triangle
    11·1 answer
  • Mrs Blackwell gives each of her students two pencils. How many pencils did she hand out
    7·2 answers
  • Gary sold tickets to the school football game. He sold $1240 worth of tickets. He sold 10 more adult tickets than children ticke
    13·1 answer
  • Pls help me with this! Thank u !!
    14·1 answer
  • Can someone help me with this please?
    11·1 answer
  • . What is the negative solution to this equation?<br> 8x2 – 4x = 363
    15·1 answer
  • How many solutions does the nonlinear system of equations graphed below
    13·2 answers
  • Plz help me understand!!! ps plz answer and I will mark brainlylest if I get a true and correct answer.
    15·2 answers
  • Help me plz.......................
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!