Answer:
3 yards
Step-by-step explanation:
7-4= 3 lol
Answer:
ax^2 + bx + c
Step-by-step explanation:
The standard form of an equation of a parabola is ax^2 + bx + c
a and b are coefficients and b is a constant
A parabola opening up has a positive a value while a parabola opening down has a negative a value
Answer:
point D
Step-by-step explanation:
think about it....y = x.....this is saying that x and y are equal
now look at point D. (-3,-3)...x = -3 and y = -3
therefore, y = x
the rest of them dont work
because on A, 1 does not equal -1
because on B, 4 does not equal 2
because on C, -3 does not equal 3
Andrew has saved 36 number of R5 coins, 90 number of R2 coins and 126 number of R1 coins.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
The coins are in the ratio 2:5:7 respectively. If he has a R90 in R2 coins. If x represent the total coins, hence:
(5/14) * x = 90
x = 252
Number of R5 coins = (2/14) * 252 = 36
Number of R1 coins = (7/14) * 252 = 126
Andrew has saved 36 number of R5 coins, 90 number of R2 coins and 126 number of R1 coins,
find out more on equation at: brainly.com/question/2972832
Answer:
The height of the mast is 8√2 feet
Step-by-step explanation:
In this question, we are asked to calculate the height of the mast given the information in the question.
Please check the attachment for diagrammatic representation.
From the diagrammatic representation, we can conclude that we are asked to calculate the value of the third side of a right angled triangle, given the length of the two other sides.
Using the pythagoras’s theorem;
Square of hypotenuse = square of opposite + square of adjacent
From the diagram, we can see that the length of the cable represents the hypotenuse.
Hence;
AB^2= BC^2 + AC^2
12^2 = 4^2 + AC^2
144 = 16 + AC^2
AC^2 = 144 - 16
AC^2 = 128
AC = √128
AC = 8√2 feet
