Answer:
Hi there!
If W= A/4, then A= 4W
Step-by-step explanation:
because if you times 4 on both sides of the equation : w*4 = (A/4) *4
you get A= 4W
40% are boys. divide 2 by 5 and then multiply by 100
Answer:
False
Step-by-step explanation:
We first write the equation in the form ax² + bx + c=0 which gives us:
3x² - 6x + 9=0
Given the quadratic formula,
x= [-b ±√(b²- 4ac)]/2a ,the discriminant proves whether the equation has real roots or not.
The discriminant, which is the value under the root sign, may either be positive, negative or zero.
Positive discriminant- the equation has two real roots
Negative discriminant- the equation has no real roots
Zero discriminant - The equation has two repeated roots.
In the provided equation, b²-4ac results into:
(-6)²- (4×3×9)
=36-108
= -72
The result is negative therefore the equation has no real solutions.
M+k because the subtraction sign and negative cancel out to become positive
Answer is -10
Step by step exploration
7x=-70
x=-70/7
x=-10
