We know there are 4 suites the deck can be divided into, and two of the 4 are black. So you divide 2/4, and get 1/2. So the probability that a black card will be chosen is 1/2.
Answer:

Step-by-step explanation:
We are given the following in the question:
Let
be the proportion of the internet sales and
be the proportion of the store sale.
Hypothesis:
We have to conduct a hypothesis to check that the Internet sales are more than 10 percent higher than store sales.
Thus, we can design the null and alternative hypothesis as:

Alternate Hypothesis:
The alternate hypothesis states that the proportion of the internet sales is greater than the proportion of store sales by 10 percent.
Speed = Distance / Time
SI unit for Distance is meters, m, and for time is seconds, s,
Speed = Distance / Time = m/s
Option b.
Answer:
The answer is in the screenshot below
Step-by-step explanation:
Hello there.
<span>How to solve 6x-3=7x-11</span>
<span><span><span>6x</span>−3</span>=<span><span>7x</span>−11</span></span>
<span><span><span><span>6x</span>−3</span>−<span>7x</span></span>=<span><span><span>7x</span>−11</span>−<span>7x</span></span></span><span><span><span>−x</span>−3</span>=<span>−11</span></span>
<span><span><span><span>−x</span>−3</span>+3</span>=<span><span>−11</span>+3</span></span><span><span>−x</span>=<span>−8</span></span>
<span><span><span>−x/</span><span>−1</span></span>=<span><span>−8/</span><span>−1</span></span></span><span>x=8</span>
Answer: 8