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Romashka [77]
3 years ago
7

PLEASE HELP!!!!!!!!!!!!!!

Mathematics
1 answer:
creativ13 [48]3 years ago
4 0

Answer:

a+b=1

Step-by-step explanation:

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Indicate whether the lines are parallel, perpendicular, or neither. Justify your answer. X=4 and Y=-2
geniusboy [140]

Answer:

perpendicular

Step-by-step explanation:

x = 4 is a vertical line.

y = -2 is a horizontal line.

The lines are perpendicular.

6 0
3 years ago
List of 412 multiples of seven
Arlecino [84]

7,14,21,28,35,42,49,56,63,70,77,84


8 0
3 years ago
Read 2 more answers
Helpppppppppppppppppppppppppp
Firlakuza [10]

Answer:

Option D.

Step-by-step explanation:

==>27

r = 3

9r

which means 9x3 = 27.

6 0
3 years ago
Solve this system of equations using the substitution method<br>y=x+7<br>-2x-11=y​
ryzh [129]

Answer:

x=-6, y=1

Step-by-step explanation:

Let's solve your system by substitution.

y=x+7;−2x−11=y

Step: Solve y=x+7 for y:

y=x+7

Step: Substitute x+7 for y in −2x−11=y:

−2x−11=y

−2x−11=x+7

−2x−11+−x=x+7+−x(Add -x to both sides)

−3x−11=7

−3x−11+11=7+11(Add 11 to both sides)

−3x=18

−3x/ −3 = 18/ −3  (Divide both sides by -3)

x=−6

Step: Substitute−6 for x in y=x+7:

y=x+7

y=−6+7

y=1  (Simplify both sides of the equation)

Answer:

x=−6 and y=1

 

3 0
3 years ago
Any help greatly appreciated
REY [17]

Answer:

Option B. 8.6%

Step-by-step explanation:

Simple index of two stocks: i=?

i=[(5,000*5.1+2,500*7.45)/(5,000*4.5+2,500*7.25)-1]*100%

i=[(25,500+18,625)/(22,500+18,125)-1]*100%

i=[(44,125)/(40,625)-1]*100%

i=[1.086153846-1]*100%

i=[0.086153846]*100%

i=8.6153846%

i=8.6%

8 0
3 years ago
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