Answer:
Step-by-step explanation:
Y = -1/4x+6, when y= 4
Same as saying
4 = -1/4x+6 , where y = 4
Multiply both sides by (4x+6)
4(4x+6) = -1
Opening the parentheses
16x + 24 = -4
16x = -4-24
16x = -28
Divide both sides by 16
X = -28/16
X = - 7/4
Ans = -7/4
Answer:
x = 47
Step-by-step explanation:
So It most likely adds up to 180 degrees so.
x + 10 + x -10 + x - 10 + x + 6 = 180 (collect like terms)
4x -4 = 184 ( add 4 on both sides)
4x = 188 (divide 188 by 4)
x = 47
47 + 10 = 57 ----> x + 10
47 - 10 = 37 -----> x - 10
47 + 6 = 53 ------> x + 6
9) x= -6
10) x= 3/2
11) x= -4,0,5
12) no solution
Answer:
Teresa should build 7.5 inches model.
Step-by-step explanation:
Consider the provided information.
Teresa is building a scale model of the JP Morgan chase Tower in Houston.
Her scale model, 1.5 inches represents 61 meters.
The actual building is 305 meters tall,
First find how many 61's are there in 305.
For this divide 305 by 61.
Actual building is 5 times taller than 61. Thus the model should be 5 times taller than 1.5.
multiply 1.5 with 5 gives us:
Hence, Teresa should build 7.5 inches model.
Count change of signs to tell positive roots
then replace x with -x and evaluate, then count change in sign for negative roots
initially
+, -, -, +, +, -
3 changes
3 or 1 positive roots
replacing x with -x
-,-,+,+,-,-
2 changes
2 or 0 negative roots
B is answer
