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mixer [17]
3 years ago
7

What is the area of this trapezoid? { Please answer ASAP , I need it now! }. A= h(b1+b2) then divide by 2

Mathematics
1 answer:
OlgaM077 [116]3 years ago
6 0

Answer:

30in squared

Step-by-step explanation:

(4x5) + ((4x3)/2)  + ((4x2)/2) = 20 in sq.

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Please help me compute standard deviation! Here is the problem, as written.
aleksandr82 [10.1K]

Answer:

The standard deviation for the income of super shoppers is 76.12.

Step-by-step explanation:

The formula to compute the standard deviation for the grouped data probability distribution is:

\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}

Here,

<em>x</em> = midpoints

\mu=\sum x\cdot P(x)

Consider the Excel table attached below.

The mean is:

\mu=\sum x\cdot P(x)=32.3

Compute the standard deviation as follows:

\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}

   =\sqrt{259.71}\\\\=76.1155204\\\\\approx 76.12

Thus, the standard deviation for the income of super shoppers is 76.12.

3 0
3 years ago
He calculates that these two periods account for 18% of minutes he spends at school. How many does he spend at school.
arlik [135]

Answer:

26

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the volume of this triangular prism?
kati45 [8]

Answer:

Given:

perpendicular [p]=9cm

base[b]=15cm

length[l]=4cm

we have

the volume of this triangular prism=area of traingle. ×length=1/2 p×b×l

=½×9×15×4=270cm³

270cm³ is a required volume.

4 0
3 years ago
Read 2 more answers
What is an equation for the translation of (x – 2)2 + (y + 1)2  = 16  by 3 units left
Akimi4 [234]
Answer: ( x + 1)² + (y - 4)² = 16

Explanation:

1) The given equation,  ( x - 2)² + (y + 1)² = 16, represents a circumference with center (2,-1) and radius √16 = 4.

1) The translation will not modify the radius of the circunference, siince translations are rigid transformations.

2) The translation 3 units to the left and 5 units upward certainly will move the center of the circunference.

This is how:

(x,y) → (x - 3, y + 5)

(2, -1) → (2 - 3, - 1 + 5) = (- 1, 4)

3) Then, keeping the same radius and being the center (-1,4), the equation of the circumference after the translation will be:

( x + 1)² + (y - 4)² = 16 ← answer


6 0
3 years ago
If cereal costs $2.79 for 16.4 ounces. How much does 25 ounces of cereal cost?
Nostrana [21]
4.2530487 but you round it to $4.25 You get the answer by dividing 2.79 by 16.4 times 25
4 0
3 years ago
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