3 years ago

90 degrees clockwise rotation

Mathematics

1 answer:

Strike441 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

Please help me on the s thank you

Black_prince [1.1K]

Hi there, your picture in incomplete! Its cut off so we can't view the rest of it :)

7 0

3 years ago

The sum of the first 10 terms of an arithmetic sequence is 235 and the

Degger [83]

Answer:

$\bold{a_1 = -42.65}\\\\\bold{d=14.7}$

Step-by-step explanation:

The sum of the first 10 terms of an arithmetic sequence is:

$S_{10}=a_1+a_2+...+a_{10}=\dfrac{a_1+a_{10}}{2}\cdot10=\dfrac{2a_1+(10-1)d}{2}\cdot10$

$\dfrac{2a_1+(10-1)d}{2}\cdot10=235\\\\(2a_1+9d)\cdot5=235\\\\2a_2+9d=47$

the sum of the second 10 terms is: a₁₁ + a₁₂+...+ a₂₀

And the sum of the first 20 terms of an arithmetic sequence is:

$S_{20}=a_1+a_2+...+a_{10}+a_{11}+...+a_{20}=\dfrac{2a_1+(20-1)d}{2}\cdot10$

so the sum of the second 10 terms is:

$a_{11}+a_{12}+...+a_{20}=S_{20}-S_{10}$

Therefore we have:

$\dfrac{2a_1+(20-1)d}{2}\cdot10-\dfrac{2a_1+(10-1)d}{2}\cdot10=735\\\\(2a_1+19d)\cdot5-(2a_1+9d)\cdot5=735\\\\2a_1+19d-(2a_1+9d)=147\\\\10d=147\\\\d=14.7$

and:

$2a_1+9\cdot14.7=47\\\\2a_1+132.3=47\\\\2a_1=-85.3\\\\a_1=-42,65$

3 0

3 years ago

Which set of rational numbers is arranged from least to greatest?

Studentka2010 [4]

Answer:The first choice

Step-by-step explanation:As you can see all other question have 1 before 1 over 9 which 1 over nine is about 0.1111...

6 0

3 years ago

Which answer shows 9x 10-5 written in standard form?

kolezko [41]

Answer:

0.0009

Step-by-step explanation:

8 0

3 years ago

Solve the inequality. -1/4x - 8 < 3/4

scZoUnD [109]

The answer to the question

7 0

4 years ago