Answer: 4a-12
Step-by-step explanation: Distribute 4 to a and -3
Answer:
Oh! We should start with finding the lngths of the "curvy sides". As you can see there are 2 semi circles which we can combine to make one circle with a diameter of 7. The formula for the circumference of the circle is 2πr which is also equal to the diameter x π. SO the circumeference is 7π which is this case equals 22 since they are telling us to use π as 22/7. I'm not sure about the rest but I hope this helped a little!!
Step-by-step explanation:
The reason this is false is because the number you are subtracting with can be greater than the number your are subtracting from, resulting in a negative number. Or, if the order doesn't matter, the numbers can be the same. This results in a difference of 0, neither positive nor negative.
Answer:
x = -1
y = 1
Step-by-step explanation:
x = 6y - 7
4x + y = -3
substitute x for 6y - 7 in the second equation
4x + y = - 3
4(6y - 7) + y = -3
open the parenthesis
24y - 28 + y = -3
combine like terms
25y - 28 = -3
add 28 to both sides of the equation
25y - 28 + 28 = -3 + 28
25y = -3 + 28
25y = 25
y = 1
now that you know y is 1, substitute it back into either equation
x = 6y - 7
x = 6 * 1 - 7
x = 6 - 7
x = -1
1:5
154:x
1 154
___=_____
5 x
Cross multiply
1x=770
divide both sides by 1
x=770
Answer=770
The easier way to solve for this is just to multiply 154 by 5.