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Mariana [72]
3 years ago
12

A remote control uses two batteries. If I have 5 remote controls and 1 pack of 8 batteries, will I have enough for all of the re

motes? Group of answer choices
Mathematics
1 answer:
Alisiya [41]3 years ago
8 0
If 1 remote control uses 2 batteries
5 remote controls would use 10 batteries.
1x2 = 2
5x2 = 10
If you only had 8 batteries you could only use 4 remote controls as 4x2 = 8

The answer is no, you won’t have enough for all the remotes as you’re 2 batteries short.
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Derive this identity from the sum and difference formulas for cosine:
DiKsa [7]

Step-by-step explanation:

½ [cos(a − b) − cos(a + b)]

Using sum and difference formulas:

½ [cos a cos b + sin a sin b − (cos a cos b − sin a sin b)]

Distribute the negative:

½ (cos a cos b + sin a sin b − cos a cos b + sin a sin b)

Combine like terms:

½ (2 sin a sin b)

Simplify:

sin a sin b

4 0
3 years ago
Find the mean,median,mode and range for each set of data its 23,27,24,26,26,24,26,24
lilavasa [31]

Mean is the average of the data set, which is found by adding all values together and then dividing that sum by the number of data values.

Median is the middle number of the data set, and can be found by ordering the values from least to greatest. If there are two middle numbers, the average of the two would be the median.

Mode is the number that shows up most frequently in the data set.

Range is found by subtracting the lowest number from the highest number in the data set.

<u>Set 1</u>

Mean:

18+20+22+11+19+18+18=126

126÷7=18

Median:

11, 18, 18, 18, 19, 20, 22 →  18

Mode: 18

Range: 22-11=11

<u>Set 2</u>

Mean: 23+27+24+26+26+24+26+24=200

200÷8=25

Median:

23, 24, 24, 24, 26, 26, 26, 27 → 24+26=50 → 50÷2=25

Mode: 24 and 26

Range: 27-23=4

4 0
3 years ago
Read 2 more answers
Find the value of x. Round to the nearest tenth.
Aliun [14]

Answer:

Step-by-step explanation:

Triangle XYZ is a right angle triangle.

From the given right angle triangle

XZ represents the hypotenuse of the right angle triangle.

With ∠34 as the reference angle,

YZ represents the adjacent side of the right angle triangle.

XY represents the opposite side of the right angle triangle.

To determine x, we would apply the Cosine trigonometric ratio

Cos θ = opposite side/hypotenuse. Therefore,

Cos 34 = x/28

x = 28Cos34 = 28 × 0.8290

x = 23.212

To the nearest tenth, it becomes

23.2

7 0
3 years ago
If three times a number plus four is no more than four times the number minus one, which of the
pychu [463]
The number is at least 5
6 0
3 years ago
Read 2 more answers
Mhanifa please help this is due soon
kvv77 [185]

Answer:

<u>Use Pythagorean theorem:</u>

  • a² + b² = c²

#7

  • 3² + 7² = 9 + 49 = 58
  • (√57)² = 57
  • 58 ≠ 57
  • No

#8

  • 11² + 2² = 121 + 4 = 125
  • (5√5)² = 25*5 = 125
  • 125 = 125
  • Yes
3 0
2 years ago
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