Plug in -5 for n
-5^3 + 3(-5)^2
-125 + 3(25) = -125 + 75 = -50
f(-5) = -50
Answer:
BC = 13
Step-by-step explanation:
Pitagoras:
H^2= 5^2 + 12^2
H^2=25 + 144
H^2= 169
H= V 169 ---- square root
H= 13 -------BC
The number of units of tiles he will need is 18.96 units
Step-by-step explanation:
The parallelogram ABCD has a right triangle ABD with A as 90°
The length of segment AB is given as 3.16 units and that of the diagonal BD is 7.07 units.
Apply Pythagorean relationship to find length of segment AD=BC
The sum of squares of the sides equals the square of the hypotenuse.
a²+b²=c²
In this case, side a=3.16 units, b=AD and c=hypotenuse=7.07
Applying the formula;
a²+b²=c²
3.16²+b²=7.07²
9.99+b²=49.99
b²=49.99-9.99
b²=40
b=√40=6.3245 =6.32
AD=BC=6.32 units
Find the perimeter of the quadrilateral
=3.16+3.16+6.32+6.32=18.96 units
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Perimeter of a quadrilateral :brainly.com/question/12708927
Keywords : single line of tiles, pool,quadrilateral,length,hundredth
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Answer:
=10x3−5x2−3
Step-by-step explanation:
Write the problem as a mathematical expression.
-3+10x^3-5x^2
To write a polynomial in standard form, simplify and then arrange the terms in descending order.
ax^2+bx+c
Move −
3
.
If that’s 103.467 liters, it rounds to 103 liters. If it’s some other unit of measure, you should indicate what it is. 103 L