Y² + 4y + 4 = 7
- 7 - 7
y² + 4y - 3 = 0
y = -(4) ± √((4)² - 4(1)(-3))
2(1)
y = -4 ± √(16 + 12)
2
y = -4 ± √(28)
2
y = -4 ± 2√(7)
2
y = -2 ± √(7)
y = -2 + √(7) U y = -2 - √(7)
Step-by-step explanation:
0.2x - 1 = -1
first write out the problem
0.2x - 1 = -1
+1 +1 Add 1 to both sides to remove the -1 from the same side as x
0.2x = 0
/0.2 /0.2 Divide the number being multiplied with x to get x alone
0/0.2 = 0
x = 0 Now you have the answer.
Answer:
angle B is 45 degree.
Step-by-step explanation:
since both radius are equal in a circle the triangle formed is ann isosceles triangle.
base angle of an isosceles triangle are equal
angle B be x
angle A = angle B (being base angles of a triangle)
then angle A is also x
angle A + angle B + angle C =180 degree (sum of interior angles of a triangle)
x + x + 90=180
2x =180-90
x=90/2
x=45 degree
Answer:
Step-by-step explanation:
when solving and equation with a variable, you must work backwards and do the opposite of the equation
sooo… you must subtract 4 (opposite of +4 is -4)
x=12
Answer:
14 MUST CHECK TO SEE IF IM CORRECT
Step-by-step explanation:
a+b>c
the two smallest numbers added together must be greater than the greatest number
ex: the triangle has three sides; 2,3,4 it could form a triangle because 2+3>4
SO HERE:
THE NUMBER MUST BE GREATER THAN 13 ADN THE SMALLEST WHOLE NUMBER GREATER THAN 13 IS 14
