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ICE Princess25 [194]
3 years ago
7

Can someone explain this to me plz Unhelpful answers will be reported

Mathematics
2 answers:
dlinn [17]3 years ago
6 0

Answer:

In order to find the area of a triangle, you need to use the formula \frac{1}{2} bh. Substitute the known values into the formula and solve the equation.

Step-by-step explanation:

The formula to calculate the area of a triangle is \frac{1}{2} bh, where b represents the length of the triangle's base, and h represents the length of the triangle's height. Since b and h are variables that have different values in regards to different triangles, that means you should substitute the known/given values of each variable into the formula and solve the equation.

mixer [17]3 years ago
4 0

Answer:

axb/2

Step-by-step explanation:

When theres a triangle with a right angle you need to make in a rectangle and divide it by 2

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Hitman42 [59]

Function: x = years

x = $32,000-15%x

Value of car in 2020:

$8000

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2 years ago
Find the area of a square
Phoenix [80]

Answer:

Step-by-step explanation:

area =l^2

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A textbook search committee is considering
lora16 [44]

Number of ways to select 3 books from 13 books for adoption is 286 .

<u>Step-by-step explanation:</u>

A Permutation is an ordered Combination. When the order does matter it is a Permutation. There are basically two types of permutation:

  • Repetition is Allowed: such as the lock above. It could be "333".
  • No Repetition: for example the first three people in a running race. You can't be first and second.

Formula is given by:

nC_r= \frac{n!}{r! (n-r)!} , where n is the number of things to choose from,  and we choose r of them,  no repetitions,  order matters. Here , n=13 , r=3.

⇒ 13C_3 = \frac{13!}{3!(13-3)!}

⇒ 13C_3 = \frac{13!}{3!(10)!}

⇒ 13C_3 = \frac{13(12)(11)10!}{3(2)(1)(10)!}

⇒ 13C_3 = 13(2)(11)

⇒ 13 C_3 = 286

∴ Number of ways to select 3 books from 13 books for adoption is 286 .

3 0
3 years ago
A bag contains 4 black tiles, 5 white tiles, and 6 blue tiles. Event A is
Murljashka [212]

Answer:

2/21

Step-by-step explanation:

The question is badly formatted so cannot match the answer choice

Total number of tiles = 4 + 5 + 6 = 15

P(A) = P(drawing a black tile from 15 tiles) = 4/15

After event A, there are 14 tiles left : 3 black, + 5 white + 6 blue

P(B/A) = P(drawing white tile after a black tile has been drawn) = 5/14

P(A and B) = P(A).P(B/A) = 4/15 x 5/14 = 2/21

Note that P(B) = 5/15 since we are talking about independently drawing a white tile from the original stack of tiles

6 0
2 years ago
What is the Midpoint of segment BC with B(-9, -4) and C(-3, 5)?<br>​
Anastasy [175]

Answer:

(-6,0.5)

Step-by-step explanation:

(-9 + -3)÷2= -6

(-4 + 5)÷2=0.5

(-6,0.5)

3 0
2 years ago
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