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3 years ago

What is the area? (please help ╥﹏╥)

Mathematics

1 answer:

zhenek [66]3 years ago

6 0

Answer:

It should be 28 inches if im not correct but if you do the triangle formula then it would be 14 inches 4 x 7 = 28 but half is 14

Step-by-step explanation:

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What is the answer to this and can you explain

katovenus [111]

Answer:30

Step-by-step explanation:

5 0

3 years ago

An experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. How man

zheka24 [161]

Answer:

43,680 ways.

Step-by-step explanation:

We have been given that an experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. We are asked to find the number of groups of 4 participants that can be chosen, assuming that the order in which the participants are chosen is irrelevant.

We will use permutations formula to solve our given problem.

$^nP_r=\frac{n!}{(n-r)!}$

For our given problem $n=16$ and $r=4$ .

$^{16}P_4=\frac{16!}{(16-4)!}$

$^{16}P_4=\frac{16!}{12!}=\frac{16*15*14*13*12!}{12!}=16*15*14*13=43,680$

Therefore, 4 participants can be chosen in 43,680 different ways.

6 0

4 years ago

Please help me with questions 18 and 19

pshichka [43]

18) answer is A: Reflect across the line y = -3. This is the horizontal line that cuts the trapezoid in half, forming a mirror image so to speak.

--------------------------------------------------------------

19)

Answer is choice A) 2
CB/GF = CD/GH
6/3 = 4/GH
6*GH = 3*4
6*GH = 12
GH = 12/6
GH = 2

6 0

3 years ago

I need the parent function and the transformation with some explanation, thank you.

True [87]

Answer:

parent: y = x²
transformed: y = -3x² +4

Step-by-step explanation:

You have correctly recognized that the function is quadratic, so has parent function y = x².

You may notice that the function drops by 3 units when x increases or decreases by 1 unit from the vertex. That factor (-3) is the vertical scale factor in the transformed function ...

f(x) = a(x -h)² +k

where "a" is the vertical scale factor and (h, k) is the location of the vertex of the transformed function.

We note that the graphed function has its vertex at (h, k) = (0, 4), so the complete transformed function with a=-3, h=0, k=4 is ...

f(x) = -3x² +4

7 0

3 years ago

An efficiency consultant determines that on the assembly line at Stihl Inc., there is a strong, negative, linear relationship be

nikklg [1K]

Answer:

The correct option is B.

Step-by-step explanation:

It is given that there is a strong, negative, linear relationship between x and y. where, x is the number of consecutive hours a worker has been assembling chainsaws and y is the number of chainsaws he can produce in an hour.

He finds that 70%of the variation in chainsaws produced per hour can be explained by the regression of y on x.

$y=-\frac{70}{100}x$

$y=-0.7x$

The slope is -0.7, therefore option B is correct.

8 0

3 years ago

What is the area? (please help ╥﹏╥) ​

What is the area? (please help ╥﹏╥)