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3 years ago

Put the size of the angles of this triangle in order from least to

Mathematics

1 answer:

Flauer [41]3 years ago

4 0

Answer:

C,A,B

Step-by-step explanation:

A= 48°

B= 90°

C= 42°

We know that C = 42° because all of the angles in a triangle must add up to 180°.

180°-(90° + 48°) = 42°

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Help if your smart plzzzzzzz <br> ( will give 35 pts and brainliest)

Temka [501]

Answer:

a) alternate interior angles theorem

b) OXP ≅ XOL

c) XO ≅ OX

d) reflexive property (i'm not sure about this one)

e) ΔXOP ≅ ΔOXL

f) cpctc

make sure to double check the fourth one

4 0

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]

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

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

7 0

3 years ago

-2m=7<br> whats the solution as a decimal

Allisa [31]

The only thing that you need to do is Divide -2 on both sides to isolate the M. so 7/-2 M=3.5

6 0

4 years ago

CAN SOMEONE PLEASE HELP

kotykmax [81]

Answer:

The first one.

Step-by-step explanation:

The symbol that you are comparing the numbers with is equal two or greater than and you have to be 48 inches or taller.

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3 years ago

#15 & #16 please thanks

-BARSIC- [3]

Answer:

15. 122.49 16.13.17

Step-by-step explanation:

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4 years ago