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3 years ago

Help me with this math question

Mathematics

2 answers:

sammy [17]3 years ago

6 0

Answer:

Step-by-step explanation:

AfilCa [17]3 years ago

4 0

Answer: B

Step-by-step explanation:

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In one year, Linda's parents spend $2400 on cable and internet service. If they spend the same amount each month, what is the re

Yuri [45]

Answer: $200

Step-by-step explanation:

Given: In 1 year ,

Linda's parents spend $2400 on cable and internet service.

If they spend the same amount each month, Monthly payment = $\dfrac{\text{Total money spent in 1 year}}{\text{Number of months in a year}}$

$=\dfrac{\$2400}{12}\ \ \ [\text{Number of months in a year}=12]\\\\=\$200$

Hence, the resulting monthly change in the family's income = $200

4 0

2 years ago

The slope of the line passing through the points (6, 2) and (7, 3) is 3/5 1 -1

Softa [21]

The slope of the line passing through the points (6, 2) and (7, 3) is

$\large\begin{array}{I} \mathtt{ slope= \dfrac{3-2}{7-6}=1} } \end{array}$

7 0

2 years ago

Read 2 more answers

Listed below are prices in dollars for one night at different hotels in a certain region. Find the range, variance, and standar

Vanyuwa [196]

Answer:

Range = $115

Variance = $1915.2857

Standard deviation = $43.764

Step-by-step explanation:

Given the data:

234 160 119 131 218 207 146 141

Arranging in ascending order :

119, 131, 141, 146, 160, 207, 218, 234

The range = maximum - minimum

The range = 234 - 119 = 115

The variance :

Σ(x - mean)²/n-1

The mean = Σx / n

The mean = 1356 / 8 = 169.5

Variance :

Σ(x - mean)² = (119-169.5)² + (131-169.5)² + (141-169.5)² + (146-169.5)² + (160-169.5)² + (207-169.5)² + (218-169.5)² + (234-169.5)² = 13407

n - 1 = 8 - 1 = 7

Variance = 13407 / 7 = 1915.2857

Standard deviation = √variance

Standard deviation = √1915.2857

Standard deviation = $43.764

8 0

2 years ago

Find a numerical value of one trigonometric function of x for cscx=sinxtanx+cosx

ehidna [41]

cscx = sinx tan x + cos x

Using xsx x = 1/sin x and tan x = sin x/cos x

$\frac{1}{sin x} = sinx *\frac{sinx }{cos x} + cosx$

$\frac{1}{sin x} = \frac{sin^2x +cos^2x}{cos x}$

$\frac{1}{sin x} = \frac{1}{cos x}$

Multiplying both sides by cos x

$\frac{cos x}{sin x} = 1$

cot x =1

Correct option is d .

5 0

3 years ago

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At a car dealership yesterday, the ratio of trucks sold to cars sold was 5.6. If the dealership sold 30 cars, how many trucks we

aleksley [76]

Answer:

Step-by-step explanation:

ratio 5:6

$\frac{5}{6} = \frac{x}{30}$

6x = 5(30)

6x = 150

x = 25

3 0

2 years ago