Answer:
Numbers =(6,-2 )
Step-by step explanation:
Given
the sum of two numbers is four and the sum of their squares minus three times their product is 76,
Let the first term =X
Second term will be=4-x
So
X^2+(4-x)^2-3x(4-x)=76
x^2+16+x^2-8x-12x+3x^2=76
5x^2-20x+16=76
5x^2-20x-60=0
5(x^2-4x-12)=0
So x^2-4x-12=0
x^2-(6-2)x-12=0
x^2-6x+2x-12=0
X(x-6)+2(x-6)=0
(X-6)(X+2)=0
X=6,-2
Let X=6 and -2 then numbers will be 6 and (4-6)=-2
Answer:
mu answer is A
Step-by-step explanation:
because if an point shows (0,0) shows the cost is $0 for 0 pound of dog food
hope this helps
Answer:
x ≈ 66.73
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan27° = 
= 
= 
( multiply both sides by x )
x × tan27° = 34 ( divide both sides by tan27° )
x = 
≈ 66.73 ( to 2 dec. places )
Answer:
Step-by-step explanation:
6! = 6*5*4*3*2*1 =720
3! - 21 = 3*2*1 - 21 = 6 - 21 = (-15)
4r²<span>– 16 = 84
4r</span>² = 84+16
4r²= 100
r²=25
r=√25
r=<span>±5</span>
