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12345 [234]
3 years ago
14

The distance from the origin to the point(-15,20)

Mathematics
1 answer:
Anastasy [175]3 years ago
3 0

Answer:

25 units.

Step-by-step explanation:

The origin is (0,0)

There using distance formula.

\sqrt{(y2 - y1) { }^{2} + (x2 - x1) {}^{2}  }

\sqrt{0 - ( - 15) {}^{2} + (0 - 20) {}^{2}  }

\sqrt{15 {}^{2} + 20 {}^{2}  }

\sqrt{625}

Answer is 25 units.

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7. Write the equation -3x +2y = 7 in slope-intercept form.
Vlad [161]

Answer:

y = 3/2x + 7/2

Step-by-step explanation:

Slope-intercept form is when y is the subject. So we make y the subject:

Add 3x to both sides :

2y = 3x + 7

Now we divide both sides by 2 :

y = 3/2x + 7/2

This is our final answer.

Hope this helped and brainliest please

8 0
2 years ago
Read 2 more answers
A grapefruit is 8% heavier than an orange, and an apple is 10% lighter than the orange.
likoan [24]
Weight of an grapefruit=weight of an orange+8% weight of an orange
weight of an apple=weight of an orange -10% weight of an orange

a.<span>By what percentage is the grapefruit heavier than the apple?
We should find the connection between grapefruit and an apple. We know the connection between the weight of a grapefruit and an orange, we know the connection between an orange and an apple, so this means we know the connection between a grapefruit and an apple.
</span>
weight of an grapefruit=weight of an <span>orange+8% weight of an orange
</span>weight of an orange=weight of an apple<span> +10% weight of an apple
</span>
-> weight of an grapefruit=weight of an apple+10% weight of an apple + 8%(weight of an apple+10% weight of an apple)= weight of an apple + 18% weight of an apple + 2% weight of an apple= <span>weight of an apple + 20% weight of an apple 

</span><span>b.By what percentage is the apple lighter than the grapefruit?
</span>weight of an grapefruit=weight of an apple + 20% weight of an apple<span> 
</span>
-> The apple ts 20% lighter than the grapefruit.
8 0
3 years ago
Read 2 more answers
A roulette wheel has 383838 slots, of which 181818 are red, 181818 are black, and 222 are green. In each round of the game, a ba
vlabodo [156]

Answer:

Of the 777 rounds of the game in about 368 the ball will land in a red slot.

Step-by-step explanation:

Since a roulette wheel has 383838 slots, of which 181818 are red, 181818 are black, and 222 are green, and in each round of the game, a ball is tossed in the spinning wheel and lands in a random slot, supposing we watch 777 rounds of this game, to determine the approximate number of rounds where the ball lands in a red slot, the following calculation must be performed:

383838 = 100

181818 = X

181818 x 100/383838 = X

18,181,800 / 383838 = X

47.3684 = X

100 = 777

47.3684 = X

47.3684 x 777/100 = X

36,805.24 / 100 = X

368.05 = X

Therefore, of the 777 rounds of the game in about 368 the ball will land in a red slot.

3 0
3 years ago
Each year the soccer team, Peterson United, plays 25 games at their stadium. The owner of Peterson United claimed that last year
Mars2501 [29]
Total Attendence = Mean Attendence × No. of Incidents
= 24,500 × 25
= 612,500.
7 0
3 years ago
Read 2 more answers
Someone pls help me i need to find the amount of hours
ikadub [295]

Answer:

5.65 hours

Step-by-step explanation:

Given: Initial number of bacteria = 1000

N=1000(2)

To find: Time taken to: increase to 50,000

Solution: N=1000(2)

  • 50,000=1000(2)
  • Taking log,
  • log 50,000 = log 1000(2)
  • 4.7 = 3 + _  log 2
  • _ = 1.7/log 2 = 5.65

Answer = 5.65 hours

_ = symbol after the two in the brackets that is high up and smaller.

8 0
3 years ago
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