Answer:
V=7.8
Step-by-step explanation:
V=πr^2 h/3
V=3.14*1.8^2 2.3/3
V=7.8
Data:
If:
2 red pencils → 25% or 0.25
So:
"y" pencils → 75% or 0.75
The rule of three: (<span>directly proportional)
</span>

<span>multiply cross
</span>




<span>how many pencils are in his backpack?
</span><span>Add the values of the pencils
</span>

<span>
</span>
Step-by-step explanation:
Rewrite the expression using only positive exponents. Then, evaluate the expression. 3^{-2}
The last one is the answer.
Answer:
option A. 3x - y = 2 and 3x - y = 1
Step-by-step explanation:
Using the rule of y-intercept which is the value of y when x equals 0
<u>Option A:</u> 3x-y=2 and 3x-y=1
y-intercepts will be ⇒ -2 and -1
<u>Option B:</u> 3x+y=2 and 3x-y=1
y-intercepts will be ⇒ 2 and -1
<u>Option C:</u> 3x-y=2 and 3x+y=1
y-intercepts will be ⇒ -2 and 1
<u>Option D:</u> 3x+y=2 and 3x+y=1
y-intercepts will be ⇒ 2 and 1
Comparing the results with the y-intercepts from the graph
From the graph the system of equation intersects with y-axis, (which mean x=0), at y = -2 , -1
So, the system which is represented by the graph is option A