squawk1738
04.07.2021 •
Mathematics
Solve for x. Round to the nearest tenth, if necessary.
Solved
Show answers
More tips
- C Computers and Internet How to Reinstall Windows: A Detailed Guide for Beginners...
- S Style and Beauty How to Get Rid of a Bruise: Tips and Tricks...
- F Food and Cooking Лечо: вкусное и простое блюдо для любой кухни...
- H Health and Medicine Relieving Swelling in Legs: Causes and Ways to Alleviate the Symptom...
Answers on questions: Mathematics
- M Mathematics For an exponential regression equation in the form y=ab^x , a value of 1.101 for b will cause y to get larger as x gets larger true or false...
- M Mathematics One model of earths population growth is...
- M Mathematics The table shows a linear function. which equation represents the function? f(x)=−53x+9 f(x)=9x+53 f(x)=53x+9 f(x)=−53x−9 x f(x) −6 −1 −3 4 0 9 3 14...
- M Mathematics Let the function f(x) have the form f(x) = acos(x- c). to produce a graph that matches the one shown below, what must the value of a be? a. 4 b. 3 c. 2 d. 1...
- M Mathematics Factor completely 4x2 − 32. 4(x + 4)(x − 4) 4(x + 4)(x − 8) 4(x2 − 8) prime...
- M Mathematics The owner of a fabric store has determined that the profits p of the store are approximately given by p(x) = -x^2 + 70x+67, where x is the yards of fabric sold daily. find the...
- M Mathematics The perimeter of a regulation singles tennis court is 210 feet and the length is 57 feet less than five times the width. what are the dimensions of the court? f width length ft...
- M Mathematics Asquare steel bar has a length of 7.4 ft and a 2.9 in by 2.9 in cross section and is subjected to axial tension. the final length is 7.40504 ft . the final side length is 2.89945...
- M Mathematics The primary source of funding for the medicare program is from a. premiums collected from the elderly population b. payroll taxes on the employed population c. state government...
- M Mathematics The population of a certain country is approximated by the following equation, where x is the number of years since 1980 and p is the population in millions p-2.761x +126.296...
Ответ:
Hi there!
1. Trigonometric Ratio
For this question, we will be knowing legs or sides of the right triangle and its ratio. Trigonometric Ratio or Trigonometry is very useful when it comes to solve for legs or sides. Because it has something to do with angles.Currently, there are 6 Trigonometric Ratios. 2 ratios are the main topic which are sine and cosine. Both can be shortened as sin, cos. While the other 4 ratios are defined by these two ratios.
2. Adjacent, Hypotenuse, Opposite
There are 3 sides in a right triangle. Opposite is a side or length of a triangle that is opposite of a specific angle. For example in the picture. CD is opposite of 65 degrees. ED is opposite of angle C.Adjacent is a leg or we can call it a base of right triangle.Hypotenuse is the longest side of right triangle according to Pythagorean Theorem. It is also the opposite of right angle.3. Using Cosine Ratio
Cosine Ratio is defined as adjacent to hypotenuse or adjacent/hypotenuse. Since we focus on the 65 degree. We can conclude that the adjacent side is x and the hypotenuse side is 7.Cosine Ratio is:
For this part, use the calculator to find the value of cos65 degrees. When you put cos65 degree in a calculator, you should get 0.42261826... round to the nearest tenth as we get 0.4
Hence, the new equation is:
4. Solve The Equation
The best way to deal with decimal number when solving the equation is to multiply the whole equation by 10. Because we want to turn 0.4 to 4 which will be easier in solving the equation.Multiply 7 both sides to get rid of the denominator.
Divide both sides by 10 so we can finally isolate x.
Since the denominator is 10. We can convert to the decimal as 2.8
Because you want the nearest tenth then 2.8 is your answer!
5. Final Answer
x = 2.8Ответ:
16 km due west
Step-by-step explanation:
The bearing of the school p from school q is 16 km due west.
To find the bearing of school q from school p, we have to find the direction that the school q is with respect to school p.
Since p is directly west of q, then it implies that q must be directly east of p.
We now know the direction.
Since the distance from q to p is exactly the same as the distance from p to q, then, the distance from p to q is 16 km.
Hence, the bearing of q from p is 16 km due west.