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2 years ago

10

Help please???!!!!?!!!!??!!?!!!!!!!!

1 answer:

Alexeev081 [22]2 years ago

5 0

Answer:

b，c，f

Step-by-step explanation:

a is -8

b 8

c 8

d -8

e 1-

f 8

g -8

h -8

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Which one is linear

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A because linear means straight line

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3 years ago

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3 years ago

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A sporting goods store sells right-handed and left-handed baseball gloves. In one month, 12 gloves were sold for a total revenue

stepladder [879]

Answer:

$9$ right-handed gloves and $3$ left-handed gloves were sold.

Step-by-step explanation:

Given: In one month, $12$ gloves were sold for a total revenue of $\$561$ .

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Now, cost of each right-handed gloves $=\$45$

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$45x+52y=561\:\:\:...(i)$

Also, in a month $12$ gloves were sold.

So, we get

$x+y=12\:\:\:...(ii)$

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3 years ago

How many times does the graph of the function below interect or touch the x-axis? y=-2x^2+3x+5

Andrei [34K]

Answer:

Two times at (-1,0) and (2.5,0)

Step-by-step explanation:

When the graph intersects or touches x-axis, y is equal to 0

so y = -2x^2 + 3x + 5

=> 0 = -2x^2 + 3x + 5

The formula to solve a quadratic equation of the form ax^2 + bx + c = 0 is equal to x = [-b +/-√(b^2 - 4ac)]/2a

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so the graph has two x-intercepts (-1,0) and (2.5,0), therefore it intersects x-axis two times

7 0

3 years ago