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2 years ago

15

21 = 1/4 Ayo can some1 solve this for me thanks lol mwa

1 answer:

Bumek [7]2 years ago

7 0

Answer: 84

Step-by-step explanation:

21 is 1/4 of ? The ? Is 4x21

Therefore, 21x4=84

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Please help! I'll mark it as brainliest

Drupady [299]

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2 years ago

The points (–2, 4) and (–2, –2) are vertices of a heptagon. Explain how to find the length of the segment formed by these endpoi

Scrat [10]

Answer:

The segment is 6 units long.

Step-by-step explanation:

The points (–2, 4) and (–2, –2) are vertices of a heptagon. We have to explain how to find the length of the segment formed by these endpoints.

If two points at the ends of a straight line PQ are P( $x_{1},y_{1}$ ) and Q( $x_{2},y_{2}$ ), then the length of the segment PQ will be given by the formula

$\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}$

Now, in our case the two points are (-2,4) and (-2,-2) and the length of the segment will be

$\sqrt{(- 2 - (- 2))^{2} + (4 - (- 2))^{2}} = 6$ units. (Answer)

5 0

2 years ago

Read 2 more answers

Jonathon has a bag that contains exactly one red marble (r), one yellow marble (y), and one green marble (g). He chooses a marbl

wariber [46]

Answer:

[ry, yr, gy, yg, rg, gr]-Any three picks from this sample space.

Step-by-step explanation:

-The bag contains exactly $1r, \ 1y, \ 1g \$ marbles.

-He picks one ball without looking, and chooses a second ball without replacing the first:

If the first is red, the the second is either yellow or green,
If the first is a yellow, then the second can be red or green,
If the first is green, then the second can be a red or yellow.

The sample space of the second pick is therefore:

[ry, yr, gy, yg, rg, gr]

Hence, any three picks from the sample space are correct possible outcomes.

7 0

2 years ago

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John is driving around town. When he reaches the gas station, he notes that he has traveled 20 miles. He reaches home 2 hours la

Troyanec [42]

Answer:

$d=5t+20$

Step-by-step explanation:

The equation that will model this situation will be of the form

$d=mt+b$

where $t$ is the time in hours john has traveled since the gas station, and $d$ is the distance.

Now we know that John has already traveled 20 miles when he is at the gas station, this means at $t=0$ , $d=20$ ; or

$20=m(0)+b$

$\boxed{b=20}$

Thus we have

$d=mt+20$ .

Now we need to figure out $m.$

When John reaches home 2 hours later he notes that he has traveled 30 miles, which means he has traveled 30 - 20 = 10 miles; thus we have

$m= \frac{\Delta d}{\Delta t} =\frac{10 miles}{2hours} =5$

$\boxed{m=5}$

Now we have the full equation:

$\boxed{d=5t+20}$

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2 years ago

Solve for the value of y. 13 points

iogann1982 [59]

Answer:

y=30

Step-by-step explanation:

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2 years ago

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