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Dennis_Churaev [7]
2 years ago
15

100 POINTS WILL GIVE BRAINLIEST TOO FIRST RESPONSE

Mathematics
1 answer:
yulyashka [42]2 years ago
5 0

Answer:

58

Step-by-step explanation:

Angle D is an inscribed angle that intercepts arc ZBC, so the measure of angle D is half the measure of arc ZBC.

m<D = (1/2)[m(arc)ZBC]

10x + 16 = (1/2)(7x - 5 + 154)

20x + 32 = 7x + 149

13x = 117

x = 9

m(arc)BZ = 7x - 5 = 7(9) - 5 = 63 - 5 = 58

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PLZ HELP WILL GIVE BRAINLIEST!!!
Alexxx [7]

Answer:

Answer A

Step-by-step explanation:

Angle A = 180 - 26 - 90 (90 right angle)

The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

cos ( A)= adj/hyp

Cos (26) = a / 13

a = 13* Cos (26)

a= 11.7

Find the last side of the triangle using the Pythagorean theorem.

b^{2}=c^{2} -a^{2}

6 0
3 years ago
How would you Simplify this???????????
Korvikt [17]
Lets solve this problem:(5x^2)(5x^2)^2


so first of all you would do the () first


so lets do the first one first. 5x^2 = 5*5 wich would equal 25


so the () by each other means multiply


so now its: 25*(5x^2)^2

5x^2= 5*5=25 

now its: 25*25^2

do 25^2 first: 25 * 25 =625

625*25

625*25=15,625 

your answer 15,625


3 0
3 years ago
What is the cube root of 25​
Neko [114]

Answer:

15625

Your welcome. Have a great day :D

7 0
3 years ago
Read 2 more answers
The second statement is the what of the first?
Tamiku [17]

Answer:

  contrapositive

Step-by-step explanation:

The <u>converse</u> statement would be ...

  b ⇒ a

The <u>contrapositive</u> swaps the parts and negates them both:

  ¬b ⇒ ¬a . . . . . matches your given statement

The <u>inverse</u> negates both parts:

  ¬a ⇒ ¬b

A <u>contradiction</u> arises when the implication is false: a is true and b is false.

6 0
4 years ago
Look at the triangle show on the right. The Pythagorean Theorem states that the sum of the squares of the legs of a right triang
Vladimir [108]

Answer:

cos^2\theta + sin^2\theta = 1

Step-by-step explanation:

Given

(\frac{b}{r})^2  + (\frac{a}{r})^2

Required

Use the expression to prove a trigonometry identity

The given expression is not complete until it is written as:

(\frac{b}{r})^2  + (\frac{a}{r})^2  = (\frac{r}{r})^2

Going by the Pythagoras theorem, we can assume the following.

  • a = Opposite
  • b = Adjacent
  • r = Hypothenuse

So, we have:

Sin\theta = \frac{a}{r}

Cos\theta = \frac{b}{r}

Having said that:

The expression can be further simplified as:

(\frac{b}{r})^2  + (\frac{a}{r})^2  = 1

Substitute values for sin and cos

(\frac{b}{r})^2  + (\frac{a}{r})^2  = 1 becomes

cos^2\theta + sin^2\theta = 1

3 0
4 years ago
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