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kotykmax [81]
3 years ago
8

Evaluate each expression if a = -1 and b = 6: a + b ab​

Mathematics
2 answers:
photoshop1234 [79]3 years ago
7 0

\huge \boxed{\mathfrak{Question} \downarrow}

Evaluate each expression if a = -1 and b = 6:

  • a + b
  • ab

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

(1) a + b = ?

  • Given, a = - 1 & b = 6.
  • So, a + b = ?

\sf \: a + b =  ? \\  \\  \sf \: Substitute \: the \: values \: of \: a \: and \: b \\  \\ \sf a + b \\  \sf \dashrightarrow( - 1) + (6) \\    =  \large \boxed{\mathfrak{ 5}}

__________________

(2) ab = ?

  • Given, a = - 1 & b = 6
  • So, ab = ?

\sf \: ab \:  =  ? \\  \\  \sf \: Substitute \: the \: values \: of \: a \: and \: b \\  \\ \sf \:  ab \\  \dashrightarrow \sf( - 1)(6) \\  \dashrightarrow  \sf- 1 \times 6 \\   =  \boxed{\mathfrak{  \bold- 6}}

Sauron [17]3 years ago
3 0

Answer:

a + b =  - 1 + 6 = 5 \\ a \times b = 6 \times ( - 1) =  - 6

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The height of a right triangle is √6 units and the base is √9 units. Find the area of the triangle
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Answer:

Step-by-step explanation:

h = √6 units

b = √9 units

A = b*h/2 = √6·√9 /2 = √(6·9)/2 = √(2·3·3·3)/2 = 3√3 /2 units ²≈ 2.6 units²

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What is a 2c − 5b − c a − b simplified?
timama [110]
All you have to do is combine like terms. 2c and (-c) are like terms (-5b) and (-b) are like terms and a is a term. So, 2c combined with (-c) is C. (-5b) and (-b) combined is (-6b). Since a doesnt need to be combined with anything, you leave it as it is so your answer will then be c - 6b + a (this is the answer assuming that there is a + in front of the a. If there is a - sign, then just change your +a to -a at the end
7 0
3 years ago
Edward's cake recipe calls for 15 3/4 cups of flour and
rodikova [14]
Cups of flour=15  3/4=15+ 3/4=(4*15+3)/4=63/4
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We solve this problem by rule of 3:

63/4 cups of flour--------------100 people
x------------------------------------ 25 people

x=(63/4 cups of flout * 25 people)/100 people=1575/400 cups of  flour=
=63/16=(3*16+15)/16=3  15/16  cups of flour.

21/2 cups of sugar-----------------100 people
x-----------------------------------------25 people

x=(21/2 cups fo sugar * 25 people) / 100 people=525/200 cups of sugar= 21/8 =(2*8+ 5)/8=2   5/8 cups of sugar.

Answer:  3  15/16  cups of flour and 2  5/8 cups of sugar.
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Answer:

addition property

Step-by-step explanation:

See attached image.

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