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zhuklara [117]
4 years ago
7

????????????.....???????,,,,,,,,,,,,,,,,,,

Mathematics
1 answer:
Elza [17]4 years ago
4 0
If you need to simply the expression it would be 21+12x
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Catherine wants to pass year for Ms. Ford's class and all she has left is to take the final Spring Final. If she earned a 60 on
Anvisha [2.4K]

Step-by-step explanation:

The final grade is the average of the two semesters.

70 = ½ (60 + x)

x = 80

So Catherine needs a Semester 2 grade of 80%.

The average of RC3 and RC4 is ½ (62 + 53) = 57.5.  This accounts for 90% of the Semester 2 grade.  The other 10% is the Spring final.

80 = 0.90 (57.5) + 0.10 (x)

x = 282.5

Catherine would have to score 282.5% on the Spring final in order to pass.

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4 years ago
. Emma wanted to make an origami fish for each of her 22 classmates. She takes 30 minutes to make one fish. How long will Emma t
zzz [600]

Answer:

11 hours

Step-by-step explanation:

50 minutes = 1 hour

30 minutes = 1/2 hour

She takes 1/2 per fish.

1/2 * 22 = 11

Answer: 11 hours

3 0
3 years ago
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I NEED THE ANSWER ASAP.An architect is planning a triangular pool with the perimeter of 99 feet.If two sides measure 20 and 42,
Alla [95]

Answer:

37 feet

Step-by-step explanation:

99 - (20+42) = 37

3 0
3 years ago
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.00 m/s. The car is a distan
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S=\frac{d}{t},\ where\ s-speed,\ d-distance,\ t-time\\t=\frac{d}{S}\\\\d+37.2-bear\ distance\\\\Time\ (tourist\ tourist\ and\ bear)\ will\ be\ the\ same\ so\ we\\ should\ comparise\ them:\\\\\frac{d}{4}=\frac{d+37.2}{4.96}\\\\4.96d=4(d+37.2)\\\\4.96d=4d+148.8\\\\4.96d-4d=148.8\\\\0.96d=148.8\\\\d=155m\\\\Maximum\ value\ of\ d\ is\ 155m
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3 years ago
Which trigonometric functions have a domain of [–1, 1]?
Annette [7]

Answer:

The answer is A. y = arcsinx and y = arccosx

Step-by-step explanation:

7 0
3 years ago
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