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AleksandrR [38]
2 years ago
11

Samir took a total of 21 quizzes over the course of 3 weeks. After attending 6 weeks of school this quarter, how many quizzes wi

ll Samir have taken in total? Solve using unit rates.
Mathematics
2 answers:
Naddika [18.5K]2 years ago
8 0
42 because 21 time 2 equals 42
BigorU [14]2 years ago
5 0
3 weeks= 21
3•2=6
21•2=42
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How do I solve this?
maria [59]

14.87

Step-by-step explanation:

use the Pythagorean theorem

a^2+b^2=c^2

C being the longest side of the triangle

14^2+5^2=C^2

196+25=C^2

221=C^

find the square root of 221

C=14.866

rounded to nearest tenth

C=14.87

6 0
3 years ago
Read 2 more answers
What interval notation represents the data graphed below?
Aliun [14]

Answer: Choice D

(-\infty, -2) \cup [4, \infty)

=====================================================

Explanation:

The left portion is the interval (-∞, -2)

This is a shorthand way of saying -\infty < x < -2

The curved parenthesis says "do not include this endpoint as part of the solution set". Note the open hole at x = -2 in the diagram.

In contrast, the value x = 4 is included (due to the filled in circle), so we use a square bracket for this endpoint. Therefore, the right-hand portion is represented by [4, ∞) which translates to 4 \le x < \infty

Negative and positive infinity will always use a parenthesis, and never a square bracket. This is because we can only approach infinity but never reach it, so we cannot include it as an endpoint.

All of this builds up to the full interval notation to be (-\infty, -2) \cup [4, \infty)

The only square bracket is near the 4; everything else is a curved parenthesis. This is why choice D is the final answer.

6 0
3 years ago
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NARA [144]
I think the answer would be the last one. a cylinder with radius 4 units.
3 0
3 years ago
The parabola shown is congruent to y = x^2. a) what are the zeroes of the function? B) write the equation in factored form.
Murljashka [212]

Answer:

idk

Step-by-step explanation:

8 0
3 years ago
Help question 4 pleaseeeeeeee
KIM [24]
The anwser is D and I’m sure of it
6 0
3 years ago
Read 2 more answers
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