3 years ago

Rewrite 3/7 with a denominator of 28

1 answer:

6 0

28 is 4 times 7. So, to make the fraction equal you must also multiply the numerator by 4
4x3 =12 so the new fraction would be 12/28

You might be interested in

The probability that a worker with occupational exposure to dust contracts a lung disease is 0.2. three such workers are checked

Elena-2011 [213]

Answer:

i think b. at least one of them contracted a lung disease

5 0

2 years ago

A pumpkin is launched from the top of a 20 foot tall platform at an initial velocity of 84 feet per second. The height, h, of th

Gennadij [26K]

<h2>Explanation:</h2>

In this problem we have a pumpkin is launched from the top of a 20 foot tall platform at an initial velocity of 84 feet per second. So the height, h, of the pumpkin at time t seconds after the launch can be modeled by the equation:

$h(t) = -16t^2 + 84t + 20$

So this is the equation of a parabola. The maximum of this parabola occurs at its vertex. So let's find this vertex:

$\text{The x-value of the vertex is}: \\ \\ t=-\frac{b}{2a} \\ \\ \\ Where: \\ \\ a=-16 \\ \\ b=84 \\ \\ c=20 \\ \\ \\ t=-\frac{84}{2(-16)} \\ \\ t=-\frac{84}{-32} \\ \\ t=\frac{21}{8}=2.625 \\ \\ h(2.625)=-16(2.625)^2+84(2.625)+20 \\ \\ h(2.625)=-110.25+220.5+20 \\ \\ h(2.625)=130.25m$

Finally, the maximum occurs at time 2.625 seconds when the height is 130.25m

8 0

3 years ago

The point P (5, -1) is rotated 90 degrees clockwise around the origin.

blondinia [14]

I would say the answer is c

3 0

2 years ago

Fast brainliest for u if u fast answer

sergiy2304 [10]

Answer:

It's 1/21

cuz if u divide them that what i got

Step-by-step explanation:

7 0

2 years ago

A species of catfish, can generate up to 350 voltsWrite an inequality to represent the amount of electricity generated by the ca

vaieri [72.5K]

Catfish≤350 because the catfish cannot generate more than 350 volts.

8 0

3 years ago