Determine the slope
Since the equation is already given in slope-intercept form, we'd assume that the slope is the coefficient of x.
2 is the slope
To write the equation in perpendicular form, change the slope to opposite-reciprocal.
2 opposite-reciprocal is -1/2
So, the equation would be y= -1/2x - 3
Answer:
y= -1/2x - 3
Erica knits 18 squares on Monday. She knits 7 more squares each day for the rest of the week. How many squares does Erica have on Friday?
To know that Alex did not have more than 800 coins exactly.Alex had 421 coins.
Well, we know that however many coins he does have, x, is not more than 800 AND cannot be divided by 2, 3, 4, 5, 6, or 7.
So,we need to find a number that can divide into 800 but the rest cannot.
x mod 3=1, x mod 4= 1, x mod 5 = 1 and x mod 7 =1.
Note that if x mod 3 =1 and x mod 4 =1 then x must be of the form 12a+1. So (12a+1) mod 2= 1
Counting is the process of determining the number of elements of a finite set of objects, i.e., determining the size of a set.
(12a+1) mod 6 =1.
That is you need not have the equations for 2 and 6.
To satisfy the 4 equations above x must be of the form
(3*4*5*7)b+1 =420b+1.
Knowing that x <800 we get that b=1 and so x=421.
Therefore Alex had 421 coins.
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Work out the normal price of the digital camera
(3marks)
The measure of the angle the ladder makes with the ground is 82.2°
A triangle in which one angle is 90° is called a right angled triangle.
According to the problem,
We know that in a right angled triangle,
cosФ = , where Ф is the angle between base and hypotenuse.
Here, cosФ =
⇒ Ф = 82.2°
∴ The measure of the angle the ladder makes with the ground is 82.2°
Find out more information about the measure of angles of right angled triangle here: brainly.com/question/8074395
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