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velikii [3]
3 years ago
7

The formula for the area,A, of a trapezoid is shown below, where ݄H represents its height and b1 and b2

Mathematics
1 answer:
emmainna [20.7K]3 years ago
4 0
One equivalent is A=h( \frac{ b_{1}+b_{2} }{2})

Another example is A= \frac{(b_{1}+b_{2})(h)}{2}
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Find the measurement indicated in each parallelogram
xenn [34]
QR is congruent to PS
So if QR is 17.7 PS is 17.7
Answer 3.) PS equals 17.7
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3 years ago
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Refer to the accompanying TI-83/84 Plus calculator display of a 95% confidence interval. The sample display results from using a
nikklg [1K]

Answer:

The confidence interval is 22.805

Step-by-step explanation:

We have given,

The Z interval (23.305,25.075)  

Mean \bar{x}=23.69

Sample n=30

To find : The confidence interval?

Solution :

We know, The confidence interval is in the format of

\bar{x}-E

E denotes the margin of error,

E=\frac{U-L}{2}

Where, U is the upper limit U=25.075

L is the lower limit L=23.305

E=\frac{25.075-23.305}{2}

E=\frac{1.77}{2}

E=0.885

Substitute the value of E and \bar{x} in the formula,

23.69-0.885

22.805

Therefore, The confidence interval is 22.805

8 0
3 years ago
Horn Elementary School has 456 students. If there are exactly 24 students in each class, how many classes are there in the schoo
Ivan

Answer: There are 19 classes

Step-by-step explanation:

divide the total amount amount of students by the amount of students in each class

3 0
3 years ago
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Evaluate (1/3)(m) - 1 - (1/2)(n) m=21 and n=12
Aneli [31]

Answer:

the answer is 0

Step-by-step explanation:

(1/3)(21)-1-(1/2)(12)

The first thing you do is that you multiply 1/3 times 21/1 which equal 7 then you  multiply 1/2 times 12/1 which that equal 6 then you solve 7-1-6 and you get 6-6 which equal 0 i hope this help you and i hope you have a goood day.

8 0
3 years ago
What is the volume of a box with 385 cubes and 11/3 x 5/3 x 7/3
Aleks04 [339]

Answer:

y

=

x

2

−

2

x

,  

y

=

x

Step-by-step explanation:

7 0
3 years ago
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