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galina1969 [7]
3 years ago
7

A square is inscribed in a circle. A tangent is drawn to the vertex. What size angle is formed? Select one: a. 45 b. 180 c. 22.5

d. 90
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
8 0

Answer:

I believe its A

Step-by-step explanation:

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A principal of $1800 is invested at 4% intrest, compounded annually. How much will the investment be worth after 8 years?
zavuch27 [327]
So the equation would be 4\100 of 1800 every year = (4/100x1800)x8 years = 72x8 years = $576. Best of luck!
5 0
3 years ago
In the rectangular prism shown below, which lines are parallel?
olga_2 [115]

Answer:

JN and LP...............

8 0
3 years ago
Read 2 more answers
Find d for the arithmetic series with S17=-170 and a1=2
Irina18 [472]
So, we know the sum of the first 17 terms is -170, thus S₁₇ = -170, and we also know the first term is 2, well

\bf \textit{ sum of a finite arithmetic sequence}\\\\
S_n=\cfrac{n(a_1+a_n)}{2}\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
----------\\
n=17\\
S_{17}=-170\\
a_1=2
\end{cases}
\\\\\\
-170=\cfrac{17(2+a_{17})}{2}\implies \cfrac{-170}{17}=\cfrac{(2+a_{17})}{2}
\\\\\\
-10=\cfrac{(2+a_{17})}{2}\implies -20=2+a_{17}\implies -22=a_{17}

well, since the 17th term is that much, let's check what "d" is then anyway,

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
n=17\\
a_{17}=-22\\
a_1=2
\end{cases}
\\\\\\
-22=2+(17-1)d\implies -22=2+16d\implies -24=16d
\\\\\\
\cfrac{-24}{16}=d\implies -\cfrac{3}{2}=d
6 0
3 years ago
Pls answer and thanks!!
Keith_Richards [23]

Answer:

Problem:

Solve 3x−y=6;y=x−4

Steps:

I will try to solve your system of equations.

y=x−4;3x−y=6

Step: Solvey=x−4for y:

Step: Substitutex−4foryin3x−y=6:

3x−y=6

3x−(x−4)=6

2x+4=6(Simplify both sides of the equation)

2x+4+−4=6+−4(Add -4 to both sides)

2x=2

2x

2

=

2

2

(Divide both sides by 2)

x=1

Step: Substitute1forxiny=x−4:

y=x−4

y=1−4

y=−3(Simplify both sides of the equation)

Answer:

y=−3 and x=1

Step-by-step explanation:

Hope this helped you

3 0
2 years ago
Read 2 more answers
I need help what is (6x9)+(7+3)=
Inessa05 [86]

Answer:

64

Step-by-step explanation:

Evaluate the parenthesis before doing the addition, that is

(6 × 9) + (7 + 3)

= 54 + 10

= 64

3 0
3 years ago
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