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laila [671]
2 years ago
7

LINEAR EQUATIONS PLZ HELP BRAINLIEST AND EXTRA POINTS!!!

Mathematics
2 answers:
Studentka2010 [4]2 years ago
5 0

1) B) a = 14



2)D) x = -11



3)B) x = 8



4)A) 250 = 3c-20



5)D)8



6)B), C), D)


___________________________________________________

7)

1.  one solutions

2. no solution

3. infinite solutions

4. no solution

5. one solutions

6. infinite solutions

___________________________________________________

8)A) 14 months



9)Sarah = 40 years



Sarah = 5/4 x Tanya



40 = 5/4 x Tanya's age



Therefore Tanya's age is 32 years old


Oliga [24]2 years ago
4 0

Answer:


1) B) a = 14

2)D) x = -11

3)B) x = 8

4)A) 250 = 3c-20

5)D)8

6)B), C), D)

8)A) 14 months

9)Sarah = 40 years

Sarah = 5/4 x Tanya

40 = 5/4 x Tanya's age

Therefore Tanya's age is 32 years old


Hope this helps you!


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A^2 - ab + b^2 
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3 years ago
Which expression below gives the average rate of change of the function h(x) = 4^x+2 + 7 on the interval –3 ≤ x ≤ 5?
expeople1 [14]

Answer:

4^(5+2) + 7 - (4^(-3+2) +7)

--------------------------------------

5 +3

Step-by-step explanation:

The average rate of change is given by

h(5) - h(-3)

---------------

5 - -3

h(5) - h(-3)

---------------

5 +3

h(5) = 4^(5+2) + 7

h(-3) = 4^(-3+2) +7

4^(5+2) + 7 - (4^(-3+2) +7)

---------------

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4 0
3 years ago
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 2 of 2 : S
Darya [45]

Step-by-step explanation:

From given data,

n = 1496

x = 478

Proportion estimate ( p ) = \frac{x}{n}

                                        = \frac{478 }{1496} = 0.3195 ≅ 0.31

Proportion estimate ( p ) = 0.31

∴ The proportion of new car buyers who prefer foreign cars -> 0.31

4 0
3 years ago
PLEASE HELP ME HURRY
Ymorist [56]

Answer:

6/5

Step-by-step explanation:

8 0
3 years ago
Devin’s friend Ryan lives 2 blocks west and 5 blocks south of Devin. Devin’s friend Andy lives 7 blocks east and 2 block north o
My name is Ann [436]

Answer:

≈11.4

Step-by-step explanation:

We know that, Ryan lives 2 blocks west and 5 blocks south of Devin

=> Coordinate of Ryan: (-2,-5). Because:

  • 2 blocks west = 2 unit to the left = -2
  • 5 blocks south = 5 unit go down= -5

Andy lives 7 blocks east and 2 block north of Devin.

=>Coordinate of Andy: (7,2), because:

  • 7 blocks east = 7 unit ti the right = 7
  • 2 block north = 2 unit go up = 2

Hence, to find out the distance of Ryan and Andy, we use distance formula as below:

\sqrt{(2+5)^{2} + ((7+2)^{2} }  ≈11.4

3 0
2 years ago
Read 2 more answers
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