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tigry1 [53]
4 years ago
14

Adina is constructing a line perpendicular to YJ . She has already constructed two arcs as shown. She moves her compass point to

Y to construct an arc above the line. What must be true about the width of Adina’s compass opening before she draws the arc?
A. It must be narrower than it was when constructing the first two arcs.                          B. It must be the same as it was when constructing the first two arcs.
C. It must be wider than it was when constructing the first two arcs.

Mathematics
2 answers:
mestny [16]4 years ago
8 0
It has to be wider than the first two arcs or else you will just get two circles side by side with point c in common. I usually measure it to be the length of a point between the c and j. It is a good point to get the arcs to intersect.
dexar [7]4 years ago
5 0

Answer:

It has to be wider than the first two arcs or else you will just get two circles side by side with point c in common. I usually measure it to be the length of a point between the c and j. It is a good point to get the arcs to intersect.

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What s 80% of 60 questions.
Maslowich

Answer:

48 questions

Step-by-step explanation:

.8 * 60 = 48

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4 years ago
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A​ student's course grade is based on one midterm that counts as 20​% of his final​ grade, one class project that counts as 20​%
Rus_ich [418]

Answer:

His overall final​ score is 80.1.

His letter grade is a B.

Step-by-step explanation:

To find his grade, we multiply each grade by it's weight.

Grades and weights:

His midterm score is 64​. The midterm counts 20% = 0.2.

His project score is 80​. The project score counts 20% = 0.2.

His homework score is 94. The homework score counts 30%.

His final exam score is 77. It counts 30%.

What is his overall final​ score?

64*0.2 + 80*0.2 + 94*0.3 + 77*0.3 = 80.1

His overall final​ score is 80.1.

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At least 80 but less than 90 is a​ B. He scored 80.1, so his letter grade is a B.

5 0
3 years ago
The mean of four consecutive even numbers is 15.
mote1985 [20]
Find what the sum of the #s could be by multiplying 15*4 since there's 4 #s . 15*4=60 so the sum of the 4 #s is 60 

4 0
3 years ago
every morning, halle goes to school with 1 liter bottle of water. she drinks 1/4 of the bottle before school starts and 2/3 of t
lorasvet [3.4K]

<em>The question doesn't have any requirement. I'll calculate the water Halle has left for lunch after drinking the rest.</em>

Answer:

<em>Halle has 250 ml of water for lunch</em>

Step-by-step explanation:

<u>Fractions and Proportions </u>

Fractions often express ratios between partial and total measures. In this context, 1/4 means 1 part out of 4 parts.

Halle goes to school with 1 liter of water in a bottle, she drinks 1/4 of the bottle before school starts. The bottle now has 3/4 of a liter of water

Halle drinks 2/3 of it before lunch, it means that the bottle has 1/3 of 3/4 left of the water. Since 1/3*3/4 = 1/4. That is the fraction of water still present in the bottle.

Since 1 liter is 1000 ml, Halle has 1/4*1000= 250 ml of water for lunch

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They have 58 sides all together
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