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1 year ago

Joanna made a table and a graph for the equation y = 2x.

Mathematics

2 answers:

otez555 [7]1 year ago

6 0

Answer:

Step-by-step explanation:

Leokris [45]1 year ago

5 0

B. both r correct

when it’s 2x it goes up two over one. rise/run, 2/1
for the table if you look at the graph when x=1 then y=2 and if x=2 then y=4

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Colin’s piano lesson is 45 minutes, or 3/4 of an hour, long. If he practices 6 different songs and spends an equal amount of tim

frosja888 [35]

Answer: $\frac{1}{8}$ hour

Step-by-step explanation:

Given: The total time Collin spent on 6 songs = $\frac{3}{4}\text{ hour}$

Now, the fraction of an hour does he spend practicing each song is given by :-

$\frac{\text{Total time taken}}{\text{Total songs}}=\frac{\frac{3}{4}}{6}=\frac{3}{4\times6}=\frac{1}{8}\text{hour}$

The fraction of an hour does he spend practicing each song= $\frac{1}{8}$

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2 years ago

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What is the answer to 6(y+2)-4=-10

Brilliant_brown [7]

$6(y+2)-4=-10\\ \\6y+12-4=-10\\\\6y=-10-12+4\\\\6y=-18\ \ / :6\\ \\y=-3$

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3 years ago

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(8×1,000)+(6×100)+(2×10)+(4×1)+(3×1/100)

otez555 [7]

Answer:

8624.03

Step-by-step explanation:

(8×1,000)+(6×100)+(2×10)+(4×1)+(3×1/100)

8000+600+20+4+.03

8624.03

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3 years ago

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F(x) = 2x^2-x-1 if f(x) = -1, what is x? What point(s) are on the graph of f ?

Elina [12.6K]

Answer:

x = 0, x = 0.5 or 1/2 The points on the graph are ( -1/2 or -0.5,0 ) and ( 1,0 )

Step-by-step explanation:

2x^2-x-1 = -1

2x^2-x = 0

x(2x-1) = 0

x=0

x=0.5 or 1/2

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2 years ago

What quadratic expression represents (2x+5)(7-4x)

den301095 [7]

<h2>Answer :)</h2>

$\sf{(2x+5)(7-4x) }$

$\sf{2x(7-4x)+5(7-4x) }$

$\sf{14x-8x^{2}+35-20x }$

$\sf{ -8x^{2}-6x+35 }$

$\\\\\\$

Therefore 

$\sf{Option~ D ~is ~correct }$

$\sf{ }$

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2 years ago

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