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mixas84 [53]
3 years ago
9

What is the area of this tropeziod

Mathematics
2 answers:
Sonja [21]3 years ago
4 0

\huge{\boxed   {\hookrightarrow{\mathcal{ Ànswer }}}}

=》Trapezoid :

\boxed{ \mathbb{ area = \frac{1}{2}  \times (a + b) \times h}}

where,

  • a and b are parallel sides
  • h is height

So,

\boxed{  \implies\frac{1}{2}  \times (15 + 7) \times 8}

\boxed{ \implies  22 \times 4}

\boxed{ \implies 88}

Area of trapezoid = 88 cm²

alisha [4.7K]3 years ago
3 0

Answer:

88cm \: is \: your \: answer

I hope it helps

have a nice day

#Captainpower

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Svet_ta [14]
If the scale is 32 to 1, that means it is 32 times bigger than the actual thing. So if the model is 196 inches long, then the actual heart is 196/32 inches long. This equals 6.125.

Answer, rounded to the nearest whole number: 6 inches.
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3 years ago
Lisa is earning 7.50 dollars per hour she worked for 33 hours last week. how much money did she earn?
never [62]

Answer:

Lisa earned $247.50 for working 33 hours.

Step-by-step explanation:

WAY 1: proportional reasoning

7.50 x

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1 h 33h

33 / 1 = 33

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WAY 2: unit rate reasoning

7.50 per hour so x value of money for 33 h

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Step-by-step explanation:

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3 years ago
Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail inste
Vladimir [108]

Answer:

The value of t test statistics is 5.9028.

We conclude that the true mean is greater than 10 at the .01 level of significance.

Step-by-step explanation:

We are given that a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead.

The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.

<em />

<em>Let </em>\mu<em> = true mean transmission of pages.</em>

So, Null Hypothesis, H_0 : \mu \leq 10 pages     {means that the true mean is smaller than or equal to 10}

Alternate Hypothesis, H_A : \mu > 10 pages     {means that the true mean is greater than 10}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                        T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean = 14.44 pages

            s = sample standard deviation = 4.45 pages

            n = sample of fax transmissions = 35

So, <u><em>test statistics</em></u>  =  \frac{14.44-10}{\frac{4.45}{\sqrt{35} } }  ~ t_3_4  

                               =  5.9028

(a) The value of t test statistics is 5.9028.

Now, at 0.01 significance level the z table gives critical values of 2.441 at 34 degree of freedom for right-tailed test.

<em>Since our test statistics is more than the critical values of z as 5.9028 > 2.441, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which </em><em><u>we reject our null hypothesis.</u></em>

Therefore, we conclude that the true mean is greater than 10.

(b) Now, P-value of the test statistics is given by the following formula;

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<h3>What is a transformation?</h3>

Transformation is the movement of a point from its initial location to a new location. Types of transformation are <em>reflection, translation, rotation and dilation.</em>

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#SPJ1

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