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3 years ago

Find the area of the figure (sides meet at right angles)

Mathematics

1 answer:

Zigmanuir [339]3 years ago

3 0

4mm + 2mm + 12mm
18mm
18mm

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HELP PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

san4es73 [151]

Answer:

u = 5 and 2/3

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

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

2 years ago

There are 20 squares and 12 triangles. What is the simplest ratio of triangles to total shapes?

serious [3.7K]

3:8 is the answer ….

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2 years ago

As part of a class project, a university student surveyed the students in the cafeteria lunch line to look for a relationship be

Vedmedyk [2.9K]

Answer:

0.63

Step-by-step explanation:

To get the relative frequency of students with red hair, we need to find the relative frequency of students with red hair from the students with gray eyes.

Since we already know that the total number of students with gray eyes is 35 and the number of red hair students with gray eye is 22

The formula we will use to calculate the relative frequency will be

The relative frequency of students with red hair = Total students of red hair with gray eyes divide by total number of gray eye students

22 ÷ 35 = 0.628 ≅ 0.63

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3 years ago

Val is going to plant n vegetables seeds in one garden and 2n+5 vegetables seeds in another. How many seeds is Val going to plan

mezya [45]

Val will plant:
$2n+5+n$
seeds.

This is equal to:
$3n+5$

So, in total, Val will plant 3n + 5 seeds.

8 0

3 years ago