I WILL GIVE BRAINLIEST 50 POINTS Find x. Round your answer to the nearest tenth of a degree.

Mathematics

2 answers:

sveta [45]3 years ago

8 0

Answer:

c = 30.8 (nearest tenth)

Step-by-step explanation:

Pythagoras' Theorem: a² + b² = c²

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

Given:

a = 21
b = 22.5

Substitute given values into the formula and solve for c:

⇒ 21² + 22.5² = c²

⇒ 947.25 = c²

⇒ c = ±√(947.25)

⇒ c = ±30.8 (nearest tenth)

As distance is positive, c = 30.8 (nearest tenth) only

Angelina_Jolie [31]3 years ago

3 0

$\\ \rm\rightarrowtail tan47=\dfrac{b}{21}$

$\\ \rm\rightarrowtail b=21tan47$

$\\ \rm\rightarrowtail b=22.5$

$\\ \rm\rightarrowtail cos47=\dfrac{21}{c}$

$\\ \rm\rightarrowtail c=21/cos47$

$\\ \rm\rightarrowtail c=30.88$

You might be interested in

When the p-value is used for hypothesis testing, the null hypothesis is rejected if _____

pashok25 [27]

Answer:

Step-by-step explanation:

Here, we are to give the reason why we would reject the null hypothesis during the hypothesis testing.

In considering whether to accept the null hypothesis or reject the null hypothesis, we have to take into consideration two things.

The p-value and the alpha value. The p-value refers to the probability which is directly obtainable from the standard score which is referred to as the z-score while the alpha refers to the level of significance.

Now, when the p-value is less than alpha, we simply reject the null hypothesis and accept the alternative hypothesis. In a case however, we have the value of p greater than or equal to the significance level alpha, we simply accept the null hypothesis in this case.

The question asks for a rejection case and this can happen only when the p-value is less than the level of significance alpha

5 0

3 years ago

Evaluate the integral by interpreting it in terms of areas. In other words, draw a picture of the region the integral represents

Oduvanchick [21]

Please find attached

thank you