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Tems11 [23]
4 years ago
6

Please give answers for all

Mathematics
1 answer:
aivan3 [116]4 years ago
5 0

Answer:

Step-by-step explanation:

5x+20 = 0

5X= -20

X= -20/5 = -4

8(4n+3) = 32n+24 =0

32n = -24

n = -24/32 = -3/4

12n-6=0

12n =6

n = 6/12 = 1/2

9(2x+9)

18x+81 =0

18x= -81

x= -81/18 = -9/2= -4.5

36+9y=0

36=-9y

36/-9 = y = -4

7(n-3) = 0

7n-21=0

7n = 21

n = 21/7

n=3

21+15a = 0

21= -15a

a= 21/-15 = 7/-5 = -1.4

32x-12x=0

20x=0

x=0/20 = 0

n-4-9=0

n-13=0

n=13

-3x-9+15x=0

-3x+15x-9 =0

12x-9=0

12x=9

x=9/12 = 3/4 = 0.75

-16N-14N=0

-30n=0

n=0/-30 =0

-10-90x-6x-10x²-2

-10-2-96x-10x²

-12-96x-10x²

10x²+96x+12

x= -b±√b²-4(a)(c)/2a

   {-96±√96²-4(10)(12)}/2(10)

{-96±√(9216-480)}/20

-96±√8736/20

-96±(93.4665715644)/20

-96+93.4665715644/20        -96-93.4665715644/20

-2.5334284356/20                 -189.466571564/20

-0.12667142178≅ -0.13             -9.4733285782≅ -9.47

-0.13                                                -9.47

-5(9n+9) =0

-45n-45 =0

-45n = 45

n = 45/-45 =-1

-5n+3(6+7n)

-5n+18+21n=0

-5n+21n+18 =0

16n+18 =0

16n = -18

n = -18/16 = -9/8 = -1.125

-4+7(1-3n)=0

-4+7-21n=0

3-21n=0

3=21n

3/21=n = 1/7

3n-(2n-8)

3n-2n+8=0

n+8=0

n=-8

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The two graphs below compare the gallons of gasoline used and the total distance traveled for two different cars.
Taya2010 [7]

Answer:

s₁ > s₂

Is accurate comparison

Step-by-step explanation:

If we have two different point for a straight line the slope of such line is given by:

P₁ = ( x₁ , y₁ )        P₂ = ( x₂ , y₂ )

The slope of the line is

s₁ = (y₂ - y₁ ) / ( x₂ - x₁)

Then for the pairs of points:

P₁ (2 , 50 )     and P₂ ( 4 , 100)

y₂  -  y₁   =  100 - 50    ⇒     y₂  -  y₁   = 50

and

( x₂ - x₁ )   ⇒  4 - 2  =  2

Then

s₁ =  50/2  

s₁  = 25

In the second case

Points

P₁ ( 2 , 40 )     P₂ ( 4 , 80 )

s₂ = (y₂ - y₁ ) / ( x₂ - x₁)

y₂  -  y₁   =  80 - 40  = 40

x₂ -  x₁  = 4 - 2  = 2

s₂  =  40/2

s₂ = 20

Then

s₁ > s₂

Is accurate comparison

6 0
4 years ago
Read 2 more answers
Please help me out........................
grandymaker [24]

RM is 10 because it’s the same as PM

Hope this helps

7 0
4 years ago
Suppose a+b = 2aa+b=2aa, plus, b, equals, 2,
Trava [24]
B-a=0.

Starting from the original equation, 
a+b=2a

We can isolate b by subtracting a from both sides:
a+b-a=2a-a
b=a

Substituting this into b-a, we have
a-a = 0
3 0
3 years ago
What is C<br><br> 20 points don't scam
slamgirl [31]

Answer:

C=15

Step-by-step explanation:

times 1.5 and 10 to get 15 then divide by 1 to get C equals 15

3 0
3 years ago
Read 2 more answers
7/10 divide by 1/5 - 4/3 x 10/11
Karolina [17]

Answer:

(-340)/231

Step-by-step explanation:

Simplify the following:

((-34)/33)/(7/10)

Multiply the numerator by the reciprocal of the denominator, ((-34)/33)/(7/10) = (-34)/33×10/7:

(-34×10)/(33×7)

33×7 = 231:

(-34×10)/231

-34×10 = -340:

Answer:  (-340)/231

7 0
3 years ago
Read 2 more answers
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