Answer:
x=1/2
y=7
Step-by-step explanation:
2x − y + 6 = 0
4x + y − 9 = 0
Solve the second equation for y
y = 9-4x
Substitute this into the first equation
2x - (9-4x) +6 = 0
Distribute the minus sign
2x -9 +4x +6 =0
6x -3 =0
Add 3 to each side
6x =3
Divide by 6
6x/6 = 3/6
x =1/2
Now find y
y = 9-4x
y = 9 -4(1/2)
y = 9 - 2
y =7
Answer:
volume = about 117.81 feet^3
density = 0.763942 lb/ft^3
Step-by-step explanation:
this is if the piece of pine is cylindrical
Answer:
Qu.3 a = 70 degree.
Qu 4. a = 6 b= 4 c = 15 d =9
Step-by-step explanation:
Rules of parallelogram show that diagonal adjacent angles are equal
Then 110 = 110 and 110+110 = 220
Then as angles equal 360 degree we subtract.
a * 2 = 360-220 = 140 degree
Where there are two angles we divide by 2 to find one of them = a as both measures equal double;
a = 140/2 = 70 degree.
Qu 4. a = 6 b= 4 c = 15 d =9
without calculator we simplify
a= 3/4 x 8 = 1 x 8 - 1/4 = 6 = 3/4 +1/4 = 1 then 1 *8 = 8 then 8 -1/4 = 6 or go decimal 0.75 * 8 = 0.40 + 5.60 + total = 6
b = 2/6 x 12 = 1/6 x 12 (2) = 2 (2) = 4 = 1/6 *2 is the same as 2/6 we then *12
c = 3/2 x 10 = 1/2 x 10 (3) = 5 (3) = 15 = 1/2 *3 is the same as 3/2 we then *10
d = 3/12 x 36 = 1/4 x 36 = 9 = decimal 0.25 x 36 = 1.50 | + 7.5 = 9
Answer:
2
Step-by-step explanation:
The degree of a function is the highest power any single term is raised to.
x^2 is the term that has the highest degree, so in this case, the degree is 2.
For example; in x^5-x^4-3x^3; the degree would be 5 because the highest power x is raised to is 5.
Area of triangle = 1/2 * base * height
what we know:
area of triangle = 120
height = 15
now we just substitute it in:
120 = 1/2 * base * 15
dividing by something is the same as multiplying by its reciprocal, so:
120 * 2 = base * 15
240 / 15 = base
16 = base
so, your base is 16 inches.