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aleksandr82 [10.1K]
3 years ago
11

What percent of 3.5 is 21?

Mathematics
1 answer:
Masteriza [31]3 years ago
5 0
20% good luck on your test
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write the equation of a line that passes through the points (5, -7) and is perpendicular to the line -2x + 6y = -4
VashaNatasha [74]

Answer:

y= -3x + 8

Step-by-step explanation:

Put -2x + 6y = -4 into slope-interceltp form

Take the negative reciprocal of the slope.

Use this reciprocal in point-slope form

and you have,

= y= -3x + 8

<em>(EDITED)</em> Steps:

2x+6y = -4

6y=2x - 4

y= 1/3x + 2/3

if two lines are perpendicular,

m1 * m2 + -1

1/3 * m2 = -1

m2 = -3

the line perpendicular to this line is

y = -3x + k ; k ∈ R

the line passes through the point (5,-7)

so,

-7 = -3. (5) +k

-7 = -15 + k

k = 8

∴the equation of a line that passes through the point (5,-7) and is perpendicular to the line -2x+6y=-4 is

y= -3x + 8

Hope this helps, have a nice day/night! :D

6 0
2 years ago
The question is bellow
frozen [14]

Answer:

20

Step-by-step explanation:

we expect to have the smae outcome so we just multiply the out puts by 5 to see what would happen after 125 draws

8 0
2 years ago
Elijah's uncle gave him $300 to spend on baseball equipment. He bought a pair of cleats for $69.99, two baseball jerseys for $32
dalvyx [7]

9514 1404 393

Answer:

  $70

Step-by-step explanation:

The amount Elijah has remaining is ...

  $300 -(70 +2×33 +80 +2×7) = $300 -(70 +80 +2(33 +7)) = $300 -230 = $70

To the nearest dollar, Elijah has $70 left.

_____

Each amount is within a penny of the nearest dollar, so we can simply use the nearest dollar amounts for the prices. In order for the answer to be different, Elijah would have to purchase 50 or more items with this pricing (something.99).

4 0
3 years ago
In Buffalo, New York, the temperature was -14°F in the morning. If the temperature dropped 7°F, what is the temperature now? Sho
spayn [35]

Answer:

-21°

Step-by-step explanation:

the temperature was -14 degrees and then dropped by 7 degrees which meant that it became -21 degrees because -14 - 7 = -21

5 0
2 years ago
I need help with this, anyone wanna help?
Lera25 [3.4K]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
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