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3 years ago

I need to find surface area

Mathematics

2 answers:

boyakko [2]3 years ago

8 0

Answer:

489.6

Step-by-step explanation:

6 x 6 x 2 x 4 x 1.7

6 x 6 = 36

36 x 2 x 4 x 1.7

36 x 2 = 72

72 x 4 x 1.7

72 x 4 = 288

288 x 1.7 = 489.6

NISA [10]3 years ago

7 0

I can't really be sure from the figure but I'll assume the top and bottom of these trapezoidal prisms are rectangles, as are two of the sides, the other two being isosceles trapezoids.

So the top is 6×6. It's hard to tell for sure but I'm going to assume the unlabeled bottomed edges are 6 so the bottom is 4×6 and two of the sides are 6×2. That leaves two trapezoids as the remaining faces, each with area

$A_{\textrm{trapezoid}} = \frac 1 2 (b_1+b_2) h= (1/2)(4 + 6) (1.7) = 8.5$

So we a total area of

A = 6×6 + 4×6 + 2×6×2 + 2×8.5 = 101

Answer: 101 square yards

Seems like the same problem with slightly different numbers, let's just write it

A = 10×6 + 4×10 + 2×4×10 + 2(1/2)(4+6)(3.9) = 219

Answer: 219 square meters

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Julie, a police officer, has the following work pattern. She works 3 days, has 4 days off, then works 4 days, then has 3 days of

zalisa [80]

Answer:

See below.

Step-by-step explanation:

For each day number, Y means working, and N means off

Day

1 Y

2 Y

3 Y

4 N

5 N

6 N

7 N

8 Y

9 Y

10 Y

11 Y

12 N

13 N

14 N

15 Y

16 Y

17 Y

18 N

19 N

20 N

21 N

22 Y

23 Y

24 Y

25 Y

26 N

27 N

28 N

29 Y

30 Y

31 Y

32 N

33 N

34 N

35 N

36 Y

37 Y

38 Y

39 Y

40 N

41 N

42 N

43 Y

44 Y

45 Y

46 N

a. Today is day 1. 30 days from today is day 31.

She works on day 31, so she does work 30 days from today.

b. 45 days from today is day 46. She is off on day 46, so she will be off 45 days from today.

8 0

3 years ago

Read 2 more answers

Someone please help I hate probability :(

nikdorinn [45]

I think starting from the top it would go as follows

9/36, 27/36, 32/36 , 4/36

b.) 9/36

c.) I really don't remember how to do the "order doesn't matter" thing anymore, so idk. my best idea is for you to look up the formulas for permutation and combinations. I know it has to do with that

7 0

3 years ago

4. Name the first five terms of the arithmetic sequence. a1 = -35, d=4

eduard

Answer:

Step-by-step explanation:

We first have to write the equation for the sequence, then finding the first five terms will be easy. Follow the formatting:

$a_n=a_1+d(n-1)$ and we are given enough info to fill in:

$a_n=-35+4(n-1)$ and

$a_n=-35+4n-4$ and

$a_n=-39+4n$ or in linear format:

$a_n=4n-39$ where n is the position of the number in the sequence. We already know the first term is -35.

The second term:

$a_2=4(2)-39$ so

$a_2=8-39$ and

$a_2=-31$

The third term:

$a_3=4(3)-39$ and

$a_3=12-39$ so

$a_3=-27$ and we could go on like this forever, but the nice thing about this is when we know the difference all we have to do is add it to each number to get to the next number.

That means that the fourth term will be -27 + 4 which is -23.

The fifth term then will be -23 + 4 which is -19. You can check yourself by filling in a 5 for n in the equation and solving:

$a_5=4(5)-39$ and

$a_5=20-39$ so

$a_5=-19$

7 0

3 years ago

A rotation ____________ a figure around a fixed point called the center of<br> ________________.

Irina-Kira [14]

Answer:

A rotation ____on the coordinate plane________ a figure around a fixed point called the center of

___rotation_____________.

4 0

3 years ago

The lsrl after an exponential transformation is log yhat=.4785 + 1.468x. What is the exponential form of the regression?

zheka24 [161]

Answer:

$10^{0.4785+1.468x}=y$

Step-by-step explanation:

So I'm assuming when you typed "log yhat=.4785 + 1.468x", you meant to write: $log(y)=0.4785+1.468x$ . And generally a logarithm can be written in the form $log_ba=c$ which can then be rewritten as $b^c=a$ , but since the log has no base, it's assumed to be 10. So in this case you have the equation:

$log_{10}y=0.4785+1.468x$ , which can then be written in exponential form as:

$10^{0.4785+1.468x}=y$

8 0

2 years ago