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GarryVolchara [31]
3 years ago
13

Please help me with this, its confusing

Mathematics
1 answer:
ser-zykov [4K]3 years ago
3 0
I can’t even read it ...
step by step explanation:
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PLEASE HELP ILL GIVE YOU 50 POINTS
Stella [2.4K]

Answer:

Step-by-step explanation:

D.closed series circuit

3 0
3 years ago
The radius of a circle is 42 inches. What is the circle's area?<br> Use 3.14 for ​.
Mazyrski [523]

Answer:

A =5538.96 in^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

We know the radius is 42 and pi is approximated by 3.14

A = 3.14 * 42^2

A =5538.96 in^2

3 0
3 years ago
Read 2 more answers
How do you graph lines using intercepts<br> Ex. 3y= 1/2x-2 (How would you graph that?)
scZoUnD [109]
Read this article https://weteachscience.org/mentoring/resources/lesson-plans/algebra-1-%E2%80%93-how-to-graph-a-linea...

6 0
3 years ago
Find the value of x if -x+4=-9​
vladimir1956 [14]

Answer:

-13

Step-by-step explanation:

x+4=-9

  -4  -4

x= -13

If you did 9+4 you'd get 13. But instead its negative because x is negative.

6 0
3 years ago
What is a30 for the arithmetic sequence presented in the table below?
Xelga [282]
\bf \begin{array}{ll}&#10;n&a_n\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;6&50\\&#10;7&50+d\\&#10;8&50+d+d\\&#10;9&50+d+d+d\\&#10;10&50+d+d+d+d\\&#10;11&50+d+d+d+d+d\\&#10;&35&#10;\end{array}&#10;\\\\\\&#10;50+5d=35\implies 5d=-15\implies d=\cfrac{-15}{5}\implies d=-3&#10;\\\\\\&#10;\textit{we know d = -3, and we know }a_{11}=35\qquad thus

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\&#10;a_n=a_1+(n-1)d\qquad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;d=\textit{common difference}\\&#10;----------\\&#10;d=-3\\&#10;n=11\\&#10;a_{11}=35&#10;\end{cases}&#10;\\\\\\&#10;a_{11}=a_1+(11-1)(-3)\implies 35=a_1+(11-1)(-3)&#10;\\\\\\&#10;35=a_1-30\implies 65=a_1

now we know what "d" is, and what a₁ is, so let's check the 30th term,

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\&#10;a_n=a_1+(n-1)d\qquad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;d=\textit{common difference}\\&#10;----------\\&#10;d=-3\\&#10;n=30\\&#10;a_{1}=65&#10;\end{cases}&#10;\\\\\\&#10;a_{30}=65+(30-1)(-3)\implies a_{30}=65-87\implies a_{30}=-22
8 0
4 years ago
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