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Kamila [148]
4 years ago
13

Please help me thanks

Mathematics
1 answer:
makvit [3.9K]4 years ago
6 0

Answer:

324 inches^2

Step-by-step explanation:

So to start off we will find the area of the rectangles.

So on has side lenghts of 15 and 6 meters.

So the area for that would be 90, after multiplying 15 and 6.

The next one has side lenghts of 9 and 6.

And after multiplying you would get 54.

For the last rectangle the side lenghts are 12 and 6.

And after multiplying you would get 72.

So adding all that together is 216 meters^2.

Now for the two triangles.

The height is 9 and the base is 12.

So after multiplying you would get 54.

Same for the other one so adding them up it would be 108.

Hence, adding 108 and 216 the answer is 324inches^2

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4 years ago
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Nikitich [7]
The answer would be b, hope it helps! 
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A veterinarian investigating possible causes of enteroliths in horses suspects that feeding alfalfa may be to blame. She wishes
Ghella [55]

Answer: b. (0.561, 0.794).

Step-by-step explanation:

We know that the confidence interval for population proportion (p) is given by:-

\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

, where \hat{p}= Sample proportion.

n = Sample size.

z*  = Critical z-value.

Let p = proportion of horses with enteroliths who are fed at least two flakes of alfalfa per day.

As per given ,  n = 62

\hat{p}=\dfrac{42}{62}=0.67742

z-value for 95% confidence = z*=1.96

A 95% confidence interval is given by:

0.67742\pm (1.96)\sqrt{\dfrac{0.67742(1-0.67742)}{62}}\\\\ =0.67742\pm 0.11636\\\\ =(0.67742-0.11636,0.67742+0.11636 )\\\\=(0.56106, 0.79378)\approx(0.561,0.794 )

Thus , the required 95% confidence interval is (0.561, 0.794).

Hence, the correct option is b. (0.561, 0.794)..

4 0
3 years ago
X varies directly with Y and Z. x = 40 when y = 10 and Z = 20. find X when y = 30 and Z = 40.​
sp2606 [1]

Answer:

x = 60

Step-by-step explanation:

Direct variation is of the form

y= kxz

We know x =40 and y =10 and z= 20

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Divide each side by 800

10/800 = k

1/80 = k

The equation becomes

y = 1/80 xz

Let y = 30 and z = 40 and find x

30 = 1/80 * x * 40

30= 40/80 x

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Multiply each side by 2

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6 0
3 years ago
CAN SOMEONE PLEASE HELPPP !!!
bixtya [17]

Answer: NO

It is the third one, x > 7

What I did was I solved for x by adding and dividing.

Step-by-step explanation:

6 0
3 years ago
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