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3 years ago

Given: triangle ABC, D is on AC, m

Mathematics

2 answers:

Novosadov [1.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

slavikrds [6]3 years ago

3 0

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Claudia is reading a book that has 360 pages. she read some of the book last week. she plans to read 46 pages. when she does, sh

gladu [14]

She read 242 pages. I got that by finding what (4/5) x (360) was which is 288 and then subtracted 46 to see what was left over which is 242

3 0

3 years ago

PLS HELP TIMED QUIZ The size of a television screen is given as the length of the diagonal. If a television is advertised as hav

grin007 [14]

Answer:

D.24

Pythagorean states:

hypotenuse^2 = side1^2 + side2^2

30^2 = 18^2 + side2^2

side2^2 = 30^2 - 18^2

side2^2 = 900 - 324

side2^2 = 576

side2 = sqr root 576

side2 = 24

Source: http://www.1728.org/pythgorn.htm

Step-by-step explanation:

5 0

3 years ago

In a random sample of 85 people attending a workshop, 63 of the respondents said the workshop was useful. What is the sample pro

SVETLANKA909090 [29]

Divide the number of respondents saying it was useful by the total number
63/85 = 0.74

8 0

3 years ago

Read 2 more answers

Paige launched a ball using a catapult she built. The height of the ball (in meters above the ground) ttt seconds after launch i

agasfer [191]

Answer:

1) Factor form : $h(t)=-5t(t-8)$

2) 8 second after launch.

Step-by-step explanation:

The height of the ball (in meters above the ground) t seconds after launch is modeled by

$h(t)=-5t^2+40t$

To find the time when ball hit the ground, we need to find the factor form of the given function.

$h(t)=-5t(t-8)$

When ball hi the ground, then height of the ball from the ground is 0.

$h(t)=0$

$-5t(t-8)=0$

Using zero product property, we get

$-5t=0\Rightarrow t=0$

$t-8=0\Rightarrow t=8$

Ball hit the ground at t=0 and t=8. It means ball hit the ground in starting and 8 second after launch.

5 0

3 years ago

The velocity,v of a missile is related to time t, By the equation v=5t^2+3t+1.calculate the time at which the velocity is minimu

Cloud [144]

Answer:

time: t = -0.3
minimum: v = 0.55

Step-by-step explanation:

For quadratic ax^2 + bx + c, the extreme value is found at x=-b/(2a). For your quadratic, the minimum is found at ...

t = -(3)/(2(5))

t = -0.3 . . . . . time of minimum velocity

The value of velocity at that time is ...

v = 5(-0.3)^2 +3(-0.3) +1 = 5(.09) -.9 +1

v = 0.55 . . . . . value of minimum velocity

3 0

3 years ago