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Iteru [2.4K]
3 years ago
7

18. Which one of the following mathematical statements is true?

Mathematics
2 answers:
Mrac [35]3 years ago
8 0

Answer:

b

Step-by-step explanation:

poizon [28]3 years ago
8 0
ANSWER:
The correct answer is option ‘D’ .

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Given 15 cot A = 8, find sin A and sec A.​
pogonyaev

Answer:

sin A = 15/17

sec A = 17/8

Step-by-step explanation:

15 cot A = 8

First get cot A alone.

cot A = 8 / 15

Since cot is the reciprocal of tan then flip 15 and 8.

tan A = 15 / 8

Now you have the opposite and adjacent sides, just find the hypotenuse with Pythagorean's theorem

15^2 + 8^2 = 289

\sqrt{289} = 17

Now that you have all the sides use the opposite and hypotenuse to get sine and the adjacent and hypotenuse to get cosine then flip to get secant.

sin A = 15/17

cos A = 8/17

sec A = 17/8

7 0
3 years ago
Five times a number is the same as 30 more than 8 times the number. Find the number.
allsm [11]

5x = 8x+30

5x-8x+30 = 0

-3x=-30

x=-10

5 0
3 years ago
which rule would apply to the expression w^2w^3. A.addition rule. B.power rule. C.distributive rule. D.quotient to difference ru
Free_Kalibri [48]
"Power rule" is the one rule among the following choices given in the question that <span>would apply to the expression w^2w^3. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your desired help.</span>
4 0
3 years ago
I NEED HELP!! pleaseee
Veronika [31]

Answer:

<h3>y = 20</h3><h3 />

Step-by-step explanation:

line RPN = 180 = 4y - 10 + 90 + y

180 - 90 + 10= 5y

100 = 5y

y = 100/5

y = 20

4 0
2 years ago
Assume that you randomly select 6 cards from a deck of 52. what is the probability that all of the cards selected are hearts?
Ira Lisetskai [31]
There are 13 hearts in a 52 deck.

You can think about it like this:

P = (13/52)*(12/51)*(11/50)*(10/49)*(9/48)*(8/47) = 0.00008428903476

5 0
3 years ago
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