1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alekssr [168]
3 years ago
14

PLEASE HELP AND EXPLAIN! Find the height of the triangle.

Mathematics
2 answers:
dlinn [17]3 years ago
7 0
Hello!


So you need to find the sin of the angle:

sin20 = x / 10

10 x sin20 = x

x = 3.4

Hope this helps :))
vitfil [10]3 years ago
4 0
You are given the hypotenuse and an angle, and you need to find the opposite side, use sine
sin20=x/10
x=10*sin20
use a calculator: x=3.4
You might be interested in
105.6 L/h = ___ L/min?
borishaifa [10]

Answer:

(105.6 L / hour) x (hour / 60 min) = (105.6 / 60) = 1.76L / min .



6 0
3 years ago
Read 2 more answers
How many 1/4 - pound packages of cheese can the deli make with 12 - pound of cheese? Please help !!!
devlian [24]

Answer:

48 packages

Step-by-step explanation:

recipicate 1/4 which is 4 the multiply by 12

Hope this helps!!!

6 0
3 years ago
Read 2 more answers
Lori wants to determine the average amount of time that students at her school spend on a computer each day there are 350 studen
Bezzdna [24]

Answer:

2 students from each 15 classrooms

Step-by-step explanation:

"The number of boys and girls is approximately equal" is probably the most random sample, that is if the whole topic of the publication is Lorrie and her experimenting endeavors. If that is not the subject, then "Lorrie wants to determine the average amount of time that students at her school spend on the computer each day" is the most strange and random

3 0
3 years ago
A man travels 20 km by car from Town P to Town Q at an average speed of x km/h. He finds that the time of the journey would be s
yuradex [85]

Answer:

x = 20.

Step-by-step explanation:

First, you should remember the relation:

Distance = Speed*Time.

First, we know that a man travels a distance of 20km at a speed of x km/h, in a time T.

We can write this as:

20km = (x km/h)*T

We know that the time is shortened by 12 minutes if the speed is increased by 5km/h

Rewriting these 12 minutes in hours (remember that 60min = 1 hour)

12 min = (12/60) hours = 0.2 hours

Then from this, he can travel the same distance of 20km in a time T minus 0.2 hours if the speed is increased by 5 km/h

We can write this as:

20km = (x + 5 km/h)*(T - 0.2 h)

Then we have a system of two equations, and we want to find the value of x:

20km = (x km/h)*T

20km = (x + 5 km/h)*(T - 0.2 h)

First, we should isolate the variable T in one of the equations, if we isolate it in the first one, we will get:

20km/(x km/h) = T

Replacing that in the other equation we get:

20km = (x + 5 km/h)*(T - 0.2 h)

20km = (x + 5 km/h)*( 20km/(x km/h) - 0.2 h)

Now we can solve this for x.

Removing the units (that we know that are correct) so the math is easier to read, we get:

20 = (x + 5)*(20/x - 0.2)

We only want to solve this for x.

20 = x*20/x - x*0.2 + 5*20/x - 5*0.2

20 = 20 - 0.2*x + 100/x - 1

subtracting 20 in both sides we get:

20 - 20 = 20 - 0.2*x + 100/x - 1 - 20

0 = -0.2*x + 100/x - 1

If we multiply both sides by x we get:

0 = -0.2*x^2 + 100 - x

-0.2*x^2 - x + 100 = 0

This is just a quadratic equation, we can solve it using the Bhaskara's equation, the solutions are:

x = \frac{-(-1) \pm \sqrt{(-1)^2 - 4*(-0.2)*100} }{2*-0.2}  = \frac{1 \pm 9 }{-0.4}

Then the two solutions are:

x = (1 + 9)/-0.4 = -25

x = (1 - 9)/-0.4 = 20

As x is used to represent a speed, the negative solution does not make sense, so we should use the positive one.

x = 20

then the average speed initially is 20 km/h

3 0
2 years ago
In ΔEFG, the measure of ∠G=90°, FG = 67 feet, and EF = 98 feet. Find the measure of ∠F to the nearest tenth of a degree.
Mama L [17]

Answer:

46.9 degrees is the answer

6 0
3 years ago
Other questions:
  • Does y=x^5 represent y as a function of x?
    8·1 answer
  • From their location in the diagram, what are two possible values for m and n?
    13·1 answer
  • Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = ln(x2 + 5x + 12), [−3, 1]
    8·1 answer
  • Jonathan goes to the store and purchases 3 pencils for $0.28 each , and y number of erasers for $0.38 each . Write an expression
    11·1 answer
  • Write three different expressions in any form equivalent to each given expressions below.​
    8·1 answer
  • Solve the system using submsitution<br> x+y=-10<br> y=5x+2
    12·1 answer
  • Factor the equation x^2 -7x+10
    11·1 answer
  • Simply 3pq+5pr-2qr+qp-6rp​
    9·1 answer
  • A lava lamp is an example of which type of heat transfer?
    10·2 answers
  • Need help with homework
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!