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Black_prince [1.1K]
4 years ago
10

Need help with 61. Show steps please.

Mathematics
1 answer:
skelet666 [1.2K]4 years ago
3 0
Just do 3x+5+2x=90 And solve for x.

So, 5x+5=90
5x=85
x=85/5 = 17

now you know the value of x, so you can calculate the angles.

Btw the total angle of a triangle is 180, and since this is a right angle triangle, you know that the two angles added together needs to equal 90.
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Y=5x+3 which orderd pair works for the rule<br><br> A. (4,23)<br><br> B. (3,14)<br><br> C. (5,3)
gtnhenbr [62]
Y = 5x + 3
when x = 4
y = 5(4) + 3 = 23

Answer (4,23) 
4 0
3 years ago
(15 points!!) please help!! If you can answer the other questions on my page I will Venmo u!
Anon25 [30]

Answer:

y = (x - 3)² - 4      Vertex form

(3, -4)    Vertex

Step-by-step explanation:

f(x) = x² - 6x + 5

Complete the square

y = (x - 3)² + 5 - (-3)²

y = (x - 3)² + 5 - 9

y = (x - 3)² - 4      Vertex form

(3, -4)    Vertex

7 0
3 years ago
How does the area of a circle change if the radius is multiplied by a factor of n, where n is a whole number?
Fantom [35]
Increases but is that what you are asking?
6 0
3 years ago
A drawer contains 3 white balls and 6 black balls. Two balls are drawn out of the box at random. What is the probability that th
Rudik [331]
You have a 2/9 chance of it being white. It is how many of that color or number over the total, so you have a 2/9 chance of it being white.
6 0
3 years ago
Ashley, Bob, Claire, and Daniel are among 13 students who entered a lottery to win a free vacation to Paris.
AlladinOne [14]

Answer:

0.0014 = 0.14% probability that Ashley, Bob, Claire, and Daniel will be chosen.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the students are chosen is not important, so the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes:

4 students from a set of 4(Ashley, Bob, Claire, and Daniel). So

D = C_{4,4} = \frac{4!}{4!(4-4)!} = 1

Total outcomes:

4 students from a set of 13(number of students in the lottery). So

T = C_{13,4} = \frac{13!}{4!(13-4)!} = 715

Probability:

p = \frac{D}{T} = \frac{1}{715} = 0.0014

0.0014 = 0.14% probability that Ashley, Bob, Claire, and Daniel will be chosen.

7 0
3 years ago
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