2 years ago

Thank you for your help>>>>>>>>>>+++++++

Mathematics

1 answer:

Shkiper50 [21]2 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

Rectangular prism with a length, width, and height of 1/5 cm, 2/5 cm, 3/5 and cm, respectively

Bezzdna [24]

3/4 with the main number divide it

5 0

3 years ago

The steepness or grade of a road is expressed as a percent. if a road rises 6feet for every 24 horizontal feet. What is the slop

anygoal [31]

Answer:

25%

Step-by-step explanation:

The ratio of rise to run is ...

rise/run = 6 ft/24 ft = 1/4

Expressed as a percentage, this is ...

1/4 × 100% = 25%

_____

Comment on this grade

Interstate highways are limited to a 7% grade. Most local jurisdictions limit the grade of a road to somewhere between 12% and 15%.

7 0

3 years ago

Read 2 more answers

**A rock dropped from a 100 foot tower.

mars1129 [50]

Answer:

2.83 s

Step-by-step explanation:

We are given that

$h(t)=-16t^2+10t+100$

When a rock reached the ground then h(t)=0

$-16t^2+10t+100=0$

$16t^2-10t-100=0$

Using quadratic formula

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$t=\frac{10\pm\sqrt{(-10)^2-4\times 16\times (-100)}}{2(16)}$

$t=\frac{10\pm\sqrt{100+6400}}{32}$

$t=\frac{10+\sqrt{6500}}{32}=2.83$

$t=\frac{10-\sqrt{6500}}{32}=-2.2$

Time cannot be negative .Therefore, negative value of t can not be possible.

Hence, the rock takes 2.83 sec to reach the ground.

8 0

3 years ago

Brian rides his bicycle 24 miles in 2 hours. Write a ratio of Brain's miles per hour. Use the ratio from #1 to determine how far

Sati [7]

Answer:Ratio in miles per hour is 12 miles per hour.

Distance travelled is 60miles

Step-by-step explanation:

Speed=distance/time taken

24/2=12miles per hour

Therefore, distance travelled in 5 hours is 12*5=60miles

6 0

3 years ago

Solve: 5n = 25 A. n = 8 B. n = 5 C. n = 2 D. n = 1

Lilit [14]

Answer:

n=5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers