I need help ASAP setting points to 30!!! (Number 23)
2 answers:
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The set A satisfying the given inequality is A = (-, -10].
Following are some facts which are true for an inequality relation:
- Equal numbers can be added or subtracted from both sides of an inequality without affecting the inequality sign.
- The Inequality sign is unchanged if both sides are multiplied or divided by a positive number, but when multiplied or divided by a negative number the inequality sign is reversed.
Since y ∈ B, -2 ≤ y ≤ 7. So,
The set {-x | inequality (1) holds ∀ y ∈ B} is [10, ) i.e.
10 ≤ -x ≤ .
Multiplying -1 throughout gives
-10 ≥ x ≥ -.
x, thus, lies in the range A = (-, -10}.
Learn more about the inequality here.
Disclaimer: The question was incomplete. Please find the full content below.
<h3>Question </h3>Find the set A such that for x ∈ A
∀y ∈ B = {y ∈ R | -2 ≤ y ≤ 7}.
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Answer:
17.5% of 360 = 63
Step-by-step explanation:
We are given a process of finding 17.5% of 120. Following the same process we have to determine the 17.5% of 360.
17.5% can be break down as 10% + 5% + 2.5%
Thus,
STEP 1 : Find 10% of 360 , we get,
STEP 2 : find 5% of 360, we get,
STEP 3: find 2.5% of 360 , we get,
STEP 4: 17.5% of 360 = 10% of 360 + 5% of 360 + 2.5% of 360
⇒ 17.5% of 360 = 36 + 18 + 9
⇒ 17.5% of 360 = 63