Answer:
First question -> y = 2
Second question -> y = 10
Step-by-step explanation:
<u>Step 1: Solve y + 2 = 4</u>
Subtract 2 from both sides
y + 2 - 2 = 4 - 2
<em>y = 2</em>
<em />
<u>Step 2: Solve y - 2 = 8</u>
Add 2 to both sides
y - 2 + 2 = 8 + 2
<em>y = 10</em>
<em />
Answer: First question -> y = 2
Second question -> y = 10
His number line is incorrect, or he plotted the point incorrectly. We know that the numbers on a number line get bigger as we get farther and farther away from zero on both sides. So -4 being closer to zero than -2 is impossible on a perfect number line. Thus, he either needs to check his counting, or check if he plotted the right number.
5
<em><u>4</u></em>
<em><u>3</u></em>
2
1
0
-1
<em><u>-2</u></em>
-3
<em><u>-4</u></em>
-5
Answer:
A= 18, B= 12
Step-by-step explanation:
A +B= 30 -----(1)
A :B= 3 :2
From the ratio,
A ----- 3 units
B ----- 2 units
Units shall be represented by the letter u from this point forth.
Substitute into equation (1):
3u +2u ---- 30
5u ----- 30
u ----- 30 ÷5= 6
This means that 1 unit represents 6.
A
= 3(6)
= 18
B
= 2(6)
= 12
Answer:
Nonlinear
Step-by-step explanation:
Distribute the x
y=2x-x^2
It's quadratic
Step-by-step explanation:
When t = 2,
h(2) = 8 + 40.8(2) - 16(2)² = 8 + 81.6 - 64 = 25.6
Therefore the height after 2 sec is 25.6.
