ANSWER:
75 emails.
Trey has to answer a total of 75 emails.
STEP-BY-STEP EXPLANATION:
If:
20% of emails = 15
Then:
20% × 5 = 15 × 5
100% of emails = 75
The statement that is most correct is (b) In Grade 8, 17% of students liked running.
<h3>How to interpret the two-way frequency table</h3>
<u>The students that like swimming</u>
From the table, we have the following highlights
- 24% students like swimming in grade 8
- 18% students like swimming in grade 9
<u>The students that like running</u>
From the table, we have the following highlights
- 17% students like running in grade 8
- 14% students like running in grade 9
<u>The students that like volleyball</u>
From the table, we have the following highlights
- 5% students like volleyball in grade 8
- 54% students like volleyball in grade 9
When the above highlights are compared to the given options, the correct statement is (b) In Grade 8, 17% of students liked running.
Read more about two-way frequency table at:
brainly.com/question/26313274
The statements regarding multiple referrals that are true are:
- Multiple referrals increase the power of the leadership.
- Multiple referrals is more common in the U.S. House than the U.S. Senate.
- Complex bills that concern many different issues may be assigned to different standing committees.
<h3>What is Multiple Referral?</h3>
This refers to the process where a proposed bill in the legislature is sent for a second reading.
Hence, we can see that in the United States legislature, multiple referrals help to increase the power base of the leadership and are more common in the U.S. House than in the U.S. Senate.
Read more about US Senate here:
brainly.com/question/277056
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The oxidation number if eah of the elements is as follows;
- Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
- Oxidation number if hydrogen is +1 on both sides
- The oxidation number of oxygen is -2 on both sides
- The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.
<h3>What is a redox reaction?</h3>
A redox reaction is one in which there is a change in the oxidation number of the reactants from left to right.
Let us now consider the oxidation number of each element from left to right;
- Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
- Oxidation number if hydrogen is +1 on both sides
- The oxidation number of oxygen is -2 on both sides
- The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.
Learn more about oxidation number: brainly.com/question/15167411?
Sin(30°) =1/2 0.5
cos(30°) = (√3)/2
Note that the sin of an angle is equal to the cos of the complementary angle:
sin(60°) =cos(30°) = (√3)/2 since 30+60 = 90 (compl. angle)
