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podryga [215]
3 years ago
8

Find the value of x. 2x - 3 + 5​

Mathematics
1 answer:
Bumek [7]3 years ago
3 0

Answer: -1

Explanation: -3 + 5 = 2

2x + 2 = 0

x = -1

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The perimeter of a triangle is not greater than 12 and the lengths of sides are natural numbers.
weqwewe [10]

Answer:

3 triangles

Step-by-step explanation:

Perimeter of triangle = a + b + c

Given that :

P = 12

and a, b, c are natural numbers

Let :

Side A = a

Side B = b

Side C = 12 - (a + b)

Side A + side B > side C - - - (condition 1)

a + b > 12 - (a + b)

a + b > 12 - a - b

a + a + b + b > 12

2a + 2b > 12

2(a + b) > 12

a + b > 6

Side A - side B < side C

a - b < 12 - (a + b)

a - b + a + b < 12

2a < 12

a < 6

b < 6 (arbitrary point)

Going by the Constraint above :

The only three possibilities are :

(2, 5, 5)

(3, 4, 5)

(4, 4, 4)

Total number of triangle = 3

Equilateral triangle (all 3 sides equal) = (4, 4, 4) = 1

Isosceles triangle (only 2 sides equal) = (2, 5, 5) = 1

3 0
3 years ago
A ball is kicked upward with an initial velocity of 56 feet per second. The ball's height h (in feet) can be expressed as a func
siniylev [52]

Answer:

1.75

Step-by-step explanation:

h(t) = -16t² + 56t

h'(t) = -32t + 56

To find time at max height equate h' to 0

0 = -32t + 56

t = 56/32 = 1.75 s

It takes 1.75 s to reach max highest point

8 0
3 years ago
Will 4in. 3in. and 5in. form a triangle?
lesya692 [45]
Yes, there is a type of triangle called a "3 4 5 triangle" with side lengths 3, 4, and 5. 
8 0
3 years ago
What kind of function is f(x)?
kupik [55]
F(x) would appear in linear and quadratic functions.
3 0
3 years ago
What is the value of the function f(x) = 1.5x + 7.6 when x = 1.1?
Triss [41]
So the equation is 1.5(1.1) +7.6


1. Multiply 1.5* 1.1 = 1.65

2. Add 1.65 +7.6= 9.25


I would have to say the answer is 9.25
7 0
3 years ago
Read 2 more answers
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