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Alex73 [517]
3 years ago
6

In the coordinate plane, ABCD has vertices with coordinates A(1,-1), B(-5,3), C(-3,6),

Mathematics
1 answer:
Nana76 [90]3 years ago
6 0

Answer:

C

Step-by-step explanation:

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Add. (3b + 5) + (2b + 4)
zaharov [31]

Answer:

\huge{ \fbox{ \sf{5b + 9}}}

Step-by-step explanation:

\star{ \text{( \: 3b + 5) + (2b + 4)}}

\text{Step \: 1 \:  :  \sf{Remove \: the \: unnecessary \: parentheses}}

\text{When \: there \: is \: a \: ( + ) \: in \: front \: of \: an \: expression \: in \: parentheses \:, there \: is \: no \: need \: to \: change \: the \: sign \: of \: each \: term \: in \: the \: expression.}

\text{That \: means, \: the \: expression \: remains \: the \: same. \: Just \: you \: have \: to \: remove \: the \: parentheses.}

\mapsto{ \sf{3b + 5 + 2b + 4}}

\text{Step \: 2 \:  : Collect \: like \: terms.}

\text{Like \: terms \: are \: those \: which \: have \: the \: same \: base.}

\mapsto{ \sf{3b + 2b + 5 + 4}}

\mapsto{ \sf{5b + 5 + 4}}

\text{ Step \: 3 \:  :  \sf{Add \: the \: numbers : 5 \: and \: 4}}

\mapsto{ \boxed {\sf{ {5b + 9}}}}

Hope I helped!

Best regards! :D

~\sf{TheAnimeGirl}

4 0
3 years ago
14. What is the vertex of y=-3x2 + 6x +15?
Flura [38]

Answer:

y=6x+21

Step-by-step explanation:

simply 3x2+6x+15

5 0
3 years ago
Each section of a running trail is 3/4 mile. The trail has 3 sections. Which expression tells how many miles long the entire tra
allsm [11]
3/4*3=2.25 miles long trail
Have a great day
8 0
3 years ago
What is a equivalent rational number to 1.28 repeating?
goblinko [34]
<span>the line over the 28 means the 28 repeats forever. 1.282828.... and so on let x be the rational number 1.28... we can use this trick: 100*1.282828....= 128.282828... (the decimal 28 part repeats) 100x = 128.28... next: 100x - x = 128.282828... - 1.282828... the .282828... part will be subtracted away 99x = 127 divide both sides by 99 to get x= 127/99</span>
3 0
3 years ago
If anyone knows answer with steps that will be greatly appreciated :)
OLga [1]

Answer:

The area formula is= 1/2(a+b)×height

1/2×20×6=60metres squared

Step-by-step explanation:

kindly correct me if am wrong

6 0
3 years ago
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