Geometry
Square area
Base multiplied by height
calculate
3x^2-3x=0
X1=0
X2=1/3
How much is 3/4 - 4/3
5/12
wich is the straight formula
F(x)= mx + n
What is 25% of 80?
20
Triangle area
Base multiplied by height and divided by 2
Tell me the first 5 digits of number pi
3, 14 15 9
5/8
What is the value of f(x)=2x+3f(x)=2x+3 when x=4x=4?
f(x)=2(4)+3=8+3=11
If 3 pens cost €6, how much do 5 pens cost?
5 pens cost 10€
Rectangle area
base multiplied by height
X= 6
3/4 to a decimal.
3/4 = 0,75
the function 2x + 1 passes through the point (0,0)?
No
A price goes up from €50 to €60. What is the percentage increase?
The percentage increase is 20%
Trapezoid area
major base plus minor base divided by two and multiplied by height
Wich is the formula of the 2 grade ecuation
(-b+-√(b²-4ac))/(2a)
0,4
Which of the following is a function?
A) (1, 2), (2, 3), (1, 4)
B) (2, 5), (3, 6), (4, 7)
“B” is a function
A student gets 18 out of 20 questions right. What percentage is this?
Is a 90%
rhombus area?
minor diagonal by major diagonal divided by 2
1/2x + 5x^2-6x=1/2x^2+x
X1=0
x2=13/9
Divide: 3/4 ÷ 1/2.
3/2
If y = x², what is y when x = 5?
y =25
A jacket costs $50. If there is a 20% discount, how much will the jacket cost after the discount?
The jacket will cost 40€ after de discount