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3 years ago

Find the value of x.

Mathematics

2 answers:

levacccp [35]3 years ago

8 0

Answer:

Step-by-step explanation:

all three angles must equal 180 bc theyre on a straight line

so add 76 + 63 to get 139

then subtract that from 180

180 - 139 = 41

so x = 41

hope this helps <3

umka2103 [35]3 years ago

5 0

Answer:

Step-by-step explanation:

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Sveta_85 [38]

Answer:

$x = - \frac{11}{2}$

divide each term by two and simplify.

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3 years ago

ANSWERR ASAPP!!! I GIVE BRAINLIESTT!!<br><br>Answer b and correct c and a if wrong

FrozenT [24]

Answer:

b is (4,55). c is correct I believe.

Step-by-step explanation:

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3 years ago

Read 2 more answers

$10,000 is invested at two different rates. $2,500 is invested at 4%, and the rest is invested at 5%. How much interest is earne

worty [1.4K]

I'm assuming this is a yearly interest.

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3 years ago

What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?

Serggg [28]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=-2\\
n=6\\
S_6=-105
\end{cases}$

$\bf -105=a_1\left( \cfrac{1-(-2)^6}{1-(-2)} \right)\implies -105=a_1\left( \cfrac{1-(64)}{1+2} \right)
\\\\\\
-105=a_1\left( \cfrac{-63}{3} \right)\implies -105=a_1(-21)
\\\\\\
\cfrac{-105}{-21}=a_1\implies 5=a_1$

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3 years ago

Find the circumference of this circle<br> using 3 for T.<br> C = ?

DerKrebs [107]

Answer:

Step-by-step explanation:

C = pi* d

pi= 3 (given in the problem)

d=24(the diameter is given in the picture)

C= 3*24 = 72

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2 years ago