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2 years ago

Choose the equation for the line in slope-intercept form. help.

Mathematics

1 answer:

olga55 [171]2 years ago

6 0

analyze picture

y int is -3

slope is

1/2

so, the equation is 1/2x-3,

which is number three

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Every time Liliana bakes a batch of brownies,

blagie [28]

Answer:

Liliana can make two batches of brownies!

Step-by-step explanation:

12/8 is equal to 6/4, which is double 3/4.

6 0

3 years ago

What is 40% of 39 ?

Zarrin [17]

Answer:

15.6

Step-by-step explanation:

40% × 39 = 15.6

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3 years ago

Factor the expression using the GCF. 18-12

rodikova [14]

Answer:

6(3-2)

Step-by-step explanation:

Find the GCF of both numbers. The GCF is 6. Write it as 6( - )

Then, divide both numbers by 6. 18 divided by 6 is 3 and 12 divided by 6 is 2. Fill in the blanks with 3 and 2. A=6(3-2)

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3 years ago

The histogram shows the distribution of hurricanes that have hit a country from 1851 through 2015, where 1 is the weakest level

aleksandrvk [35]

Answer:

a) mean = 0.2

variance = 0.0391

standard deviation = 0.198

b) The average hurricane is aprox. category 2.* (B)

Step-by-step explanation:

In order to find the mean, variance, and standard deviation, let us for a table for the data:

level x

1 0.411

2 0.278

3 0.221

4 0.080

5 0.010

Calculating the mean ( $\bar{x}$ )

$\bar{x} = \frac{x_1+x_2+x_3+x_4 + x_5}{n}\\\\\bar{x} = \frac{0.411 + 0.278 + 0.221 + 0.080 + 0.010}{5}\\\bar{x} = \frac{1}{5}\\ \bar{x} = 0.2$

∴Mean = 0.2

level x $x- \bar{x}$ $(x - \bar{x})^2$

1 0.411 0.211 0.0445

2 0.278 0.078 0.0608

3 0.221 0.021 0.000441

4 0.080 -0.12 0.0144

5 0.010 -0.19 0.0361

$\sum(x - \bar{x})^2 = 0.1562$

$variance = \frac{\sum(x - \bar{x})^2}{n-1} \\variance = \frac{0.1562}{4} \\variance = 0.0391$

standard deviation = √(variance)

Standard deviation = √(0.0391)

Standard deviation = 0.198

b) the average hurricane is aprox. category 2 (B)

8 0

3 years ago

A merchant buys a television for $125 and sells it for $75 more.What is the percent of markup?

cestrela7 [59]

Since he sold it for $75 more,

% Mark Up = Mark Up/ Cost Price x 100%

% Mark Up = 75 / 125 x 100% = 0.6 x 100% = 60%

Percent Mark Up = 60%
Hope this helps :)

3 0

3 years ago