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
jeka94
2 years ago
15

Which equation could be used to find the length of the missing side of

Mathematics
1 answer:
ivolga24 [154]2 years ago
8 0

Step-by-step explanation:

use Pythagoras theorem

b =  \sqrt{h ^{2} - p ^{2}  }

You might be interested in
Given sin x =-4/5 and x is in quadrent 3, what is the value of tan x/2
4vir4ik [10]

Answer:

We can write sin x in terms of tan x/2 using the formula:

⇒ sin x = (2 tan (x/2)) / (1 + tan2(x/2))

Therefore, using the above formula, we can find the values of tan x/2 by putting the value of sin x.

⇒ -4/5 = (2 tan (x/2)) / (1 + tan2(x/2))

Now, if we replace tan (x/2) by y, we get a quadratic equation:

⇒ 0.8y2 + 2y + 0.8 = 0

⇒ 2y2 + 5y + 2 = 0

By using the quadratic formula, we get y = -0.5, -2

Hence, the value of tan (x/2) = -0.5, -2

Now, we have two solutions of tan (x/2).

Now, let's check for the ideal solution using the formula tan x = (2 tan (x/2)) / (1 - tan2(x/2)).

For tan (x/2) = -0.5:

⇒ tan x = 2(-0.5) / 1 - (-0.5)2 = -4/3

It is also given that x lies in the third quadrant. We know that tan is positive in the third quadrant, and here we get tan x = -4/3 which is negative.

Hence, we can say that tan (x/2) = -0.5 is not a correct solution. Hence it is rejected.

Now let's check for tan (x/2) = -2.

⇒ tan x = 2(-2) / 1 - (-2)2 = 4/3

Here, we get tan x = 4/3 which is positive.

Hence, we can say that tan (x/2) = -2 is a correct solution.

5 0
3 years ago
According to a Gallup survey conducted in July 2011, 20% of Americans favor reducing the U.S. budget deficit by using spending c
Yakvenalex [24]

Answer:

Option C is correct.

The test statistic for this question is -3.13

Step-by-step explanation:

To compute the z-test statistic, the formula is given as

z = (x - μ₀)/σₓ

x = p = sample proportion of the 500 college students sampled, that favor reducing the deficit using only spending cuts with no tax increase = (75/500) = 0.15

μ₀ = p₀ = the proportion to be compared against, that is, the proportion of Americans that favor reducing the U.S. budget deficit by using spending cuts only, with no tax increases = 20% = 0.20

σₓ = standard error of the sample proportion = √[p(1-p)/n]

p = 0.15

n = Sample size = 500

σₓ = √[0.15×0.85/500] = 0.01597

z = (0.15 - 0.20) ÷ 0.01597

z = -3.13

Hope this Helps!!!

8 0
3 years ago
One glue stick has 1/5 left and the other 3/10 left, which is bigger
dedylja [7]
The glue stick with 3/10
6 0
3 years ago
Read 2 more answers
Ms. Check your answers.
xenn [34]
3kg+2kg=5kg
5/$3.25=0.65
price per kg=0.65
5 0
3 years ago
Read 2 more answers
Divide.
In-s [12.5K]

Hii

The answer us - 5/4

Sorry if incorrect

8 0
2 years ago
Read 2 more answers
Other questions:
  • A useful rule of thumb called the "rule of 70" states that if something grows at a constant rate of z percent per year, it doubl
    9·1 answer
  • The Tour de France race course was 3,642 kilometers. How many meters long was the race? One mile is about 1.6 kilometers. About
    9·2 answers
  • Earlier we analyzed the revenue earned by the junior class at East High School from their discount card fundraiser. They had
    10·1 answer
  • An arithmetic sequence is given below
    15·1 answer
  • Someone please help me this will be a lot of points and I will follow u and Mark u the brainiest​
    10·1 answer
  • Bob and Kathy want to save a total of $500,000 for retirement. How much should they deposit monthly into an account that pays 3.
    10·1 answer
  • What does 5 mean? What is the value of 5
    10·1 answer
  • A.) A $135 pair of shoes is on sale for 40% off. If the sales tax is 8%, what is the final price of the shoes? The shoes will co
    6·1 answer
  • 3. Evaluate and graph<br> the solution.<br> 3. E<br> the<br> "the<br> 5x + 9-3x s 21<br> +<br> ++
    9·1 answer
  • What is the product of 741 and 0.48?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!