5a + 17 = 47
- 17 -17
——————-
5a = 30
a= 6
Answer:
1/3
Step-by-step explanation:
7/21 = 1/3
This is because 21 & 7 are both multiples of 7. 7 / 7 = 1. 21 / 7 = 3.
That makes it 1/3.
<em>Hope that helps! :)</em>
The answer would be A.) 1
To find this answer you solve for x. Subtract 3/2 from both sides. This will give you 1/2x = 1/2^x. Then, divide by 1/2 on both sides to get x = 1.
To check this fill in x with 1. Then solve.
- 1/2 * 1/1 + 3/2 = 2^1
- 1/2 + 3/2 = 2
- 4/2 = 2
- 2 = 2
Thus making 1 the answer. Here's an image to show how I got this. I hope this helps!
Answer:
See below.
Step-by-step explanation:
Step 1. Find any zeroes.
(a) <em>y-intercept
</em>
y = 4(1.5)^x Let x = 0
= 4(1.5)⁰
= 4 × 1
= 4
We have a <em>point at (0,4)</em>.
(b) <em>x-intercept
</em>
y = 4(1.5)^x Let y = 0
0 = 4(1.5)^x Divide each side by 4
0 = (1.5)^x Take the log of each side
log0 = xlog1.5
log(0) is undefined. There is <em>no x-intercept.
</em>
Step 2. Identify any asymptotes
y<em> </em>= 4(1.5)^x
y can never be negative, so the <em>x-axis is an asymptot</em>e.
Step 3. Plug in and plot a few points
Here's a table of a few points.
<u> x y </u>
-6 0.4
-4 0.8
-2 1.8
-1 2.7
0 4.0
1 6.0
2 9.0
4 20.3
6 45.6
Step 4. Check the end behaviour.
y = 4(1.5)^x
As x ⟶ ∞, y ⟶ ∞.
As x ⟶ -∞, y ⟶ 0
.
Step 5. Draw a smooth line through the points.
Your graph should look something like the one below.
Answer:
58 in
Step-by-step explanation:
38 divided by 19 = 2
20 divided by 2 = 10
19 x 2 = 38
10 x 2 =20
38 + 20 = 58