We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
x^2+(x^2+2x+1)=421
2x^2+2x-420=0
According to the formula of quadratic
x=14 or-15
cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
14^2+15^2=421
Hope that helps you!!
The formula is (x-h)^2+(y-k)^2=r^2
so, using this, and knowing that h is -3 and k is -5 and r is 4, we get
(x--3)^2+(y--5)^2=(4)^2, which equals
(X+3)^2+(y+5)^2=16
:)
They will have same amount in 45 weeks.
Step-by-step explanation:
Given,
Starting amount of Nancy = $425
Per week saving = $25
Let,
x represent the number of weeks.
N(x) = 25x+425
Starting amount of Seamus = $875
Per week saving = $15
S(x) = 15x+875
For same amount;
N(x) = S(x)
Dividing both sides by 10
They will have same amount in 45 weeks.
Keywords: function, division
Learn more about functions at:
#LearnwithBrainly
From the given graph ,
DEVR is a rectangle
Now we find area of rectange DEVR
Area of rectangle = base * height
In rectangle DEVR , Base = 5 units and height =6 units
Area of the rectangle DEVR = 5 * 6 = 30
Now we find area of triangle MVR
Area of triangle = * base * height
Triangle has base 6 units and height 3 units
Area of triangle MVR = * 6 * 3 = 9
Area of this polygon = Area of the rectangle DEVR + area of triangle MVR
= 30 + 9 = 39 square units
The answer is 336 inches squared