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3 years ago

14

The area of the irregular polygon is ____ square units.

1 answer:

Aneli [31]3 years ago

7 0

First, you can section the polygon in the regular shapes.

Now, we can find the area of the bigger polygons. We will multiply 4x3 to get an area of 12 units^2. Then, we do 4x2 to get the area of the smaller polygon. This would be 8 units^2

12+8 is 20

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Write an exponential function in the form y=ab^xy=ab

Tcecarenko [31]

Answer:

y = 8 · 10ˣ

Step-by-step explanation:

y = abˣ

When x = 0, y = 8.

8 = ab⁰

8 = a

When x = 3, y = 8000.

8000 = 8b³

1000 = b³

10 = b

The function is:

y = 8 · 10ˣ

3 0

3 years ago

A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d

Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $3.26 a gallon

Sample mean, $\bar{x}$ = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}$

We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247$

Thus, the value of test statistic is -4.1247

3 0

3 years ago

The temperature, in degrees fahrenheit (°

vova2212 [387]

The temperature decreased by 5 degrees per hour, as -25 / 5 is -5.

5 0

3 years ago

A new bank account is opened on week 1 with a $200 deposit. After that first week, weekly deposits of $55 are made in the accoun

inysia [295]

Y=55x+200, you multiply the number of weeks by the amount of money, and add 200 because they started with that.

7 0

3 years ago

Read 2 more answers

HELP PLEASEEEEEEEEE.........!!!!!!!!!!!!!!!!

den301095 [7]

Answer:

x = 65

Step-by-step explanation:

Angles are equal because of the vertical angle thm

2x + 15 = 145

2x = 130

x = 65

7 0

3 years ago