<u>Answer & Step-by-step explanation:</u>
<u>Question 18 </u>
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form: x ≤ −10
Interval Notation: (−∞ , −10]
<u>Question 19</u>
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form: x ≤ 4
Interval Notation: (−∞ , 4]
Answer:
Step-by-step explanation:
let the number of dimes=x
and number of quarters=y
x=2y
0.10 x+0.25 y=2.25
or 10x+25y=225
divide by 5
2x+5y=45
2 ×2y+5y=45
4y+5y=45
9y=45
y=45/9=5
x=2y=2×5=10
Hence dimes=10
quarters=5
Answer:
The Distance should be 26
Step-by-step explanation:
Answer:
The slope is -4.
Step-by-step explanation:
Slope formula:


Therefore, the slope is -4, and the correct answer is -4.
Hope this helps!
Answer:
2.29 rads
Step-by-step explanation:
The length of the arc of a circle of radius r is given by;
l = rθ ---------------------------(i)
Where;
l = length of the arc
θ = central angle o that intercepts that arc and measured in radians.
From the question:
l = 16ft
r = 7ft
Substitute these values into equation (i) as follows;
16 = 7θ
Make θ subject of the formula
θ = 
θ = 2.29
Therefore, the radian measure of the central angle is 2.29 rads