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Liono4ka [1.6K]
3 years ago
7

Which line shows the first error in the solution?

Mathematics
1 answer:
Andrew [12]3 years ago
4 0
The part of the solution that is incorrect is (5). This is because -10 -8 = -18. :)
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PLEASE HELP I WILL MARK BRAINLIST TO WHOEVER ANSWERS FIRST !!
dezoksy [38]

Answer:

Graph (6, 5) and (-6, -3), and then use a ruler (optional), and draw a line between them, and a little after the points.

Step-by-step explanation:

y = 2/3x + 1

Substitute different numbers for x, and find y:

You don't really want to work with fractions, so try to find a number that when multiplied by 2/3, gives you a whole number

x = 6

y = 2/3(6) + 1

y = 12/3 + 1

y = 4 + 1

y = 5

Point: (6, 5)

x = -6

y = 2/3(-6) + 1

y = -12/3 + 1

y = -4 + 1

y = -3

Point: (-6, -3)

Graph these two points, and then use a ruler (optional), and draw a line between them, and a little after the points.

8 0
3 years ago
Consider f(x)=-(x+7)^2+4. Which of the following are true for f(x)?Check all that apply.
lisabon 2012 [21]

Answer:

A, D, F

Step-by-step explanation:

A. True, because f(x)=-(x+7)^2+4 represents quadratic function (the greatest power of x is 2)

B. False, because this function is quadratic, so cannot be linear

C. False. The vertex of the parabola is at point (-7,4) (see diagram)

D. True. The axes of symmetry is the line x=-7 that passes through the vertex.

E. False. The y-intercept is at point x=0 and y=-(0+7)^2+4=-49+4=-45.

F. True. The graph has the maximum at vertex, where y_{max}=4.

G. False. The graph of the parabola intersects the x-axis at two points (-9,0) and (-5,0), so x=-9 and x=-5 are two real solutions of the equation f(x)=0.

3 0
3 years ago
Solve: 3|x+1|≥−6. Write your solution in interval notation
Lynna [10]

Answer:

3x+3 menor igual a -6

3x menor igual a -6-3

3x menor igual a -9

x es menor igual a -3

x es -2,-1,0,1,2,3,.......

Step-by-step explanation:

7 0
3 years ago
suppose the farmer buys another 1/2 square mile of land and divides all his land into square fields 1/4 mile long and 1/4 mile w
gtnhenbr [62]
To answer this question, you need to find the area of the divided land that the farmer want. Since it was a square with 1/4 mile length then the area would be:
1/4 mile * 1/4 mile= 1/16 miles square.

Then you can divide the total area of land the farmer buys, with the area of divided land. The calculation would be: (1/2 square miles) / (1/16 square miles)= 16/2=8 pieces of field
4 0
3 years ago
HELP!! ILL MARK U BRAINLIEST!!!
vagabundo [1.1K]

Answer:

6.96

Step-by-step explanation:

4 0
3 years ago
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