Answer:
the answer is a
Step-by-step explanation:
Plug in the first equation into the he second equation
3x-(2x+7)=-9
3x-2x-7=-9
x-7=-9
x=-2
plug in x=-2 into the first equation
y=2(-2)+7
y=-4+7
y=3
answer: (-2,3)
Answer:
Priya got it right.
Step-by-step explanation:
I wouldn't have done it the way she did, but it's still correct. You can check with a calculator (if Khan Academy allows you to) or do it like this:
If f = 4, then f ÷ 0.25 should be 16.
4 ÷ 0.25 = 16
So, Priya got it right.
Answer:
<em>ALU </em><em>stands </em><em>for </em><em><u>arithmetic</u></em><em><u> </u></em><em><u>logic </u></em><em><u>unit.</u></em><em> </em><em>which </em><em>is </em><em>part </em><em>of </em><em>the </em><em>central</em><em> </em><em>processing</em><em> </em><em>unit </em><em>of </em><em>a </em><em>computer </em><em>which </em><em>performs </em><em>arithmetic</em><em> </em><em>and </em><em>logical </em><em>operations</em><em>.</em>
<em>I</em><em> hope</em><em> this</em><em> helps</em>
Answer:
Yes, you can square a negative number. In fact, any number at all can be squared, even numbers like pi and 0. This is because to square a number just means to multiply it by itself. For example, (-2) squared is (-2) (-2) = 4. Note that this is positive because when you multiply two negative numbers you get a positive result.
Step-by-step explanation:
