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3 years ago

What is the answer 2x5-5=

Mathematics

1 answer:

coldgirl [10]3 years ago

4 0

The answer to that question is 5

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Of the 50 US states four have names that start with the letter W? What percentage of the US states have names that start with th

zlopas [31]

create a fraction of the 4 states out of 50 and multiply by 100% to express as a percentage, that is

$\frac{4}{50}$ × 100% = $\frac{400}{50}$ = 8%

7 0

3 years ago

An object is launched vertically upward from a 25 foot platform and is modeled by the function s(t)=−16t2+11t+25.

ch4aika [34]

Correct option:

d. 1.64

<h2>Explanation:</h2>

An object is launched vertically upward from a 25 foot platform and is modeled by the following function:

$s(t)=-16t^2+11t+25$

So this is the equation of a parabola because the object is a projectile so it follows the Projectile Motion.

The object fall back to the ground when $s(t)=0$ so:

$-16t^2+11t+25=0 \\ \\ \\ Using \ quadratic \ formula: \\ \\ t_{12}=\frac{-b\pm \sqrt{b^2-4ac}}{2a} \\ \\ a=-16 \\ \\ b=11 \\ \\ c=25 \\ \\ \\ t_{12}=\frac{-11\pm \sqrt{11^2-4(-16)(25)}}{2(-16)} \\ \\ t_{12}=\frac{-11\pm 41.48}{-32} \\ \\ t_{1}=\frac{-11+ 41.48}{-32}=-0.95s \\ \\ t_{2}=\frac{-11- 41.48}{-32}=1.64s$

Since time can't be negative, we only choose the positive value. therefore:

<em>The object fall back to the ground after 1.64 seconds</em>

<h2>Learn more:</h2>

Projectile motion: brainly.com/question/12554459

#LearnWithbrainly

4 0

3 years ago

A plumber charges $25 for a service call, plus $50 per hour of service. (Linear Equation)

DochEvi [55]

Answer:

y=50x+25

y-interept=(0,25)

slope: 50

8 0

3 years ago

Paul and Tom both commute to work. Paul's commute on the train takes 15 minutes more than one third as many minutes as Tom's com

Ronch [10]

Answer:

45 = (one third)x + 15

Step-by-step explanation:

If x represents the number of minutes Tom commutes, then (1/3)x is "one-third as many minutes as Tom's commute." 15 minutes more than that is ...

(1/3)x + 15

We are told this is the length of Paul's commute, and that it is 45 minutes. So, the appropriate equation is ...

45 = (1/3)x +15

8 0

3 years ago

Ejejejjejjejjejjjdjdjjjdjjdjjdjjd

skelet666 [1.2K]

Answer:

freeeeeeee pooooooooints

Step-by-step explanation:

thanks I guess?

5 0

3 years ago