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VLD [36.1K]
3 years ago
7

Find the area of the triangle 15cm, 18cm, 5cm

Mathematics
2 answers:
BabaBlast [244]3 years ago
6 0

Answer:

32.62\:\mathrm{cm^2}

Step-by-step explanation:

The area of a triangle with side lengths a, b, and c is given by:

Let s=\frac{a+b+c}{2} (semi-perimeter)

A=\sqrt{s(s-a)(s-b)(s-c)}

We're given three side lengths with lengths 15 cm, 18 cm, and 5 cm. Therefore, the semi-perimeter, s, is equal to \frac{15+18+5}{2}=\frac{38}{2}=19.

Thus, the area of this triangle is:

A=\sqrt{19(19-18)(19-15)(19-5)},\\A=\sqrt{19\cdot 1\cdot 4\cdot 14},A=\sqrt{1064}=32.6190128606\approx \boxed{32.62\:\mathrm{cm^2}}

forsale [732]3 years ago
4 0

Answer:

38

Step-by-step explanation:

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A tire manufacturer has a 60,000 mile warranty for tread life. The manufacturer considers the overall tire quality to be accepta
Dominik [7]

Answer:

Fail to reject H₀

Step-by-step explanation:

To reject the null hypothesis, the P-value must be less than 0.05.

Since the P-value is 0.15 which is greater than 0.05, we would fail to reject the null hypothesis as there is no sufficient evidence against the null hypothesis.

Thus, the conclusion would be to fail to reject H₀.

7 0
3 years ago
What value of d will make this system have the same solution?<br> -3x + 7y = -1<br> dy = 3
Dima020 [189]

The value of d which will.make this system have the same solution is; d = 21/(3x -1)

First, we must make y, the subject of the formula in each case as follows;

  • y = (3x -1)/7. and
  • y = 3/d.

In essence, by equating y to y in both equations; we have;

  • (3x -1)/7 = 3/d

By Cross-product; we have;

  • (3x -1).d = 21

  • d = 21/(3x -1)

Read more on subject of formula;

brainly.com/question/11000305

4 0
3 years ago
Identify the type of function represented by f(x)=3/8(4)x
Veseljchak [2.6K]
We have the following function:
 f (x) = 3/8 (4) ^ x
 The function is of the form:
 f (x) = A (b) ^ x
 Where,
 A: initial amount
 b: growth factor (b> 1)
 x: time variable.
 Answer:
 
f (x) = 3/8 (4) ^ x
 
It is an exponential function of the form:
 
f (x) = A (b) ^ x
8 0
3 years ago
Técnicas de conteo como se es
musickatia [10]
Caracterizar las condiciones de ordenación que definen las permutaciones en un conjunto finito de elementos para la solución de problemas donde se aplica ésta técnica de conteo. DEFINICIÓN: Una PERMUTACIÓN es un arreglo de objetos distintos de un conjunto en un determinado orden


<span>más inteligente por favor :D
</span>
(english)
<span>Characterize the ordering conditions that define the permutations in a finite set of elements for the solution of problems where this counting technique is applied. DEFINITION: A PERMUTATION is an arrangement of objects other than a set in a certain order

Brainliest please :D

</span>
4 0
3 years ago
34=9r-11 <br> help plzzzzzzzzzzzzz hurry
natali 33 [55]

Answer:

5

Step-by-step explanation:

Swap sides so that all variable terms are on the left hand side.

9r−11=34

Add 11 to both sides.

9r=34+11

Add 34 and 11 to get 45.

9r=45

Divide both sides by 9.

r= 45/9

Divide 45 by 9 to get 5.

r=5

5 0
4 years ago
Read 2 more answers
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