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motikmotik
3 years ago
6

Evaluate this expression when a = 3, b = 4, c = 6 : ab-c

Mathematics
2 answers:
Lana71 [14]3 years ago
7 0
You just going to have to plug it in.
3(4)-6
=6
Harrizon [31]3 years ago
5 0
Answer is 6.

3x4=12, 12-6=6
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If f(x)=x/2-2and g(x)=2x^2+x-3 find (f+g) (x)
olya-2409 [2.1K]

Answer:

C   2x^2 + 3/2x -5

Step-by-step explanation:

f(x)=x/2-2

g(x)=2x^2+x-3

(f+g) (x)=x/2-2+2x^2+x-3

Combine like terms

           2x^2 + 3/2x -5

4 0
4 years ago
Complete the following tasks for this equation: b/7.8= -2.15.
riadik2000 [5.3K]

Answer:

Step-by-step explanation:

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(b)/(7.8)=-2.15

Multiply each term in the equation by 7.8.

(b)/(7.8)*7.8=-2.15*7.8

Cancel the common factor of (1)/(7.8).

1b=-2.15*7.8

Multiply -2.15 by 7.8 to get -16.77.

1b=-16.77

Divide each term in the equation by 1.

(1b)/(1)=-(16.77)/(1)

Cancel the common factor of 1.

b=-(16.77)/(1)

Divide -16.77 by 1 to get -16.77.

b=-16.77

#SPJ10

8 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B18x%2B79%3D0" id="TexFormula1" title=" x^{2} +18x+79=0" alt=" x^{2} +18x+7
strojnjashka [21]
X² + 18x + 79 = 0
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                       2(1)
x = <u>-18 +/- √(324 - 316)</u>
                     2
x = <u>-18 +/- √(8)
</u>              2<u>
</u>x = <u>-18 +/- 2√(2)
</u>               2<u>
<em /></u><em />x = -9 <u>+</u> √(2)
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4 0
3 years ago
Jason received $25 dollars from his grandmother. Jason's sister received $5 dollars more than Jason. Write an equation.
KiRa [710]

Answer: J(25) + JS(5) = 30

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J = Jason

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7 0
3 years ago
Celia is staring at the clock waiting for school to end so that she can go to track practice. She notices that the 4-inch-long m
ICE Princess25 [194]

there are 60 minutes marks on a clock

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<span> From 1:25 to 1:50 there are 25 minutes</span>

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150*pi/180 = 5pi/6 radians. ( 2.61799 radians)

 

Total distance the tip of minute hand has traveled in this time = 2pi*(4 in) * (5pi/6)/(2pi) = 10pi/3 inches (10.47 inches)


8 0
3 years ago
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