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zepelin [54]
3 years ago
10

Find x to the nearest tenth. A. 0.7 B. 1.0 C. 1.1 D. 1.4

Mathematics
2 answers:
vodomira [7]3 years ago
4 0

the answer would be d. 1.4

kramer3 years ago
3 0

Answer:

D

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos33° = \frac{adjacent}{hypotenuse} = \frac{1.2}{x}

Multiply both sides by x

x × cos33° = 1.2 ← divide both sides by cos33°

x = \frac{1.2}{cos33} ≈ 1.4 ( to the nearest tenth ) → D

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Although television HDTV converters are tested before they are placed in the installer's truck, the installer knows that 20 perc
Vsevolod [243]

Answer:

HDTV Converters

a. The probability that the driver will have enough working converters = 80% (100 - 20%).

b. The driver should load 10 boxes (or specifically 9.5 boxes) to ensure a 95% probability of having enough working converters.

Step-by-step explanation:

a) Data and Calculations:

Probability of HDTV converters known to not work property = 20%

This implies that 80% (100 - 20%) will work properly.

Number of converters to install today in an apartment building = 8

Number of converters placed in the truck = 10

b) The probability that the driver will have enough working converters = the probability of having properly working converters, which is 80%.  To ensure a 95 percent probability of having enough working converters, out of 10 converters, the number of boxes to load on the truck is 9.5 (10 * 95%) boxes.  Since there are no half boxes, it means that 10 boxes must be loaded, approximated to the nearest convenient number.

5 0
3 years ago
Help please!! Simplify the following expression
Andrej [43]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>D. 8x⁴ + x³ - 4x² + 1</em>

▹ Step-by-Step Explanation

Remove the opposites:

x⁴ + 3x³ - 2x³ - 5x² + x² + 1 + 7x²

Collect like terms:

8x⁴ + 3x³ - 2x³ - 5x² + x² + 1

8x⁴ + x³ - 5x² + x² + 1

8x⁴ + x³ - 4x² + 1

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

7 0
3 years ago
The number 4 is the smallest positive integer that has exactly three factors: 1, 2, and 4. If k is the next-highest integer that
saul85 [17]

To solve this problem, we must do a method of trial and error to find for the next highest integer with exactly three factors. We know that the value of k must be greater than 4, therefore by using trial and error to find for the correct answer:

 

Factors of 5:1, 5

Factors of 6:1, 2, 3, 6

Factors of 7:1, 7

Factors of 8:1, 2, 4, 8

Factors of 9:1, 3, 9

 

Therefore we stop at 9 since this is already our answer. It has exactly three factors.

The sum of the factors is:

sum of factors = 1 + 3 + 9

<span>sum of factors = 13</span>

3 0
3 years ago
2.98 times 10 to the 3rd power in standard notation
stiks02 [169]

Answer:

2980

Step-by-step explanation:

2.98*10^3 = 2980

3 0
3 years ago
Read 2 more answers
18 divided by 3-7+2x5<br> Please help!!!
chubhunter [2.5K]
The answer is to 18/3-7+2 x 5 is 3
6 0
3 years ago
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