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lakkis [162]
3 years ago
5

If 0 < f ≤ 90 and cos(22f − 1) = sin(7f + 4), what is the value of f?

Mathematics
1 answer:
77julia77 [94]3 years ago
3 0

Answer:

f= 5

Step-by-step explanation:

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A disc has a diameter of centimeters while a mini disc has a diameter of centimeters. Write the ratio of the mini disc diameter
Dafna1 [17]

Answer:

2 : 3

Step-by-step explanation:

A disc has a diameter of 21 cm while a mini disc has a diameter of 14cm. Write the ratio of the mini disc diameter to the disc diameter.

Answer: Let the diameter of the mini disc be d_1 while the diameter of the disc be d_2. To get the ratio of the mini disc diameter to the disc diameter, we just simply have to divide the diameter of the mini disc by the diameter of the disc and then represent the fraction in ratio form. The ratio of the disc diameters is given by:

Ratio of the mini disc diameter to the disc diameter = Diameter of mini disc / diameter of disc

Ratio of the mini disc diameter to the disc diameter = \frac{14}{21}=\frac{2}{3}

Ratio of the mini disc diameter to the disc diameter = 2 : 3

3 0
3 years ago
Based on a poll of 100 citizens, a community action group claims that 38% of the population is in favor of the construction of a
tatyana61 [14]

Answer:

(0.55, 0.75)

Step-by-step explanation:

The range can be estimated to be 6 standard deviations wide.  Therefore, the standard deviation is:

σ = (0.72 - 0.42) / 6

σ = 0.05

The margin of error is ±2σ, so:

ME = ±0.10

Therefore, the interval estimate is:

(0.65 - 0.10, 0.65 + 0.10)

(0.55, 0.75)

8 0
3 years ago
Bruce walks 3/4 mile in 1/5 hour. What is his speed in miles per hour? (label your answer mph) * worth 25 points and brainlyiest
LenKa [72]
The answer to this question is 3.75
3 0
2 years ago
The Florida Everglades welcomes about
Bingel [31]

Answer:

14,000 visitors weekly

Step-by-step explanation:
Break the Equation Down.

10^3 = 10 x 10 x 10

10x10x10=1000 V

Put the 1000 within the problem.

2 x 1000

Solve

2 x 1000 = 2000 Visitors

7 days are within a week so multiply the daily visitors (2000) by 7

2000 x 7 = 14,000


Answer: 14,000 visitors weekly


Hope you like this way of solving! Let me know if have any questions!

3 0
2 years ago
Jermaine has just painted a large mural. It is 8 1/2 feet wide. The wall he wants to place it on is 11 3/4 feet wide. About how
PolarNik [594]
First turn 1/2 to 2/4 so you have a common denominator.
Next turn the mixed numbers into improper fractions:
11 3/4 --> 47/4 and 8 2/4 --> 34/4
Subtract:
47/4 - 34/4 = 13/4
Divide:
13/4 = 3.25
3.25/2 --> 1.625 or 1 5/8
Therefore, he will have to place it 1 5/8 feet from each side

Hope this helps!
6 0
3 years ago
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