3 years ago

Which of the scenarios below would a t-test of the difference between means for dependent samples be appropriate?

Mathematics

1 answer:

GalinKa [24]3 years ago

4 0

Answer:

Step-by-step explanation:

scatter

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Which best describes the relationship between the successive terms in the sequence shown? 9, –1, –11, –21, … The common differen

storchak [24]

The difference is -10 because

9-10= 1
-1-10= -11
-11-10= -21

common difference means you add and common ratios means you multiply.

hope this helps!

5 0

3 years ago

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4. Write the quadratic equation in standard form.

kicyunya [14]

Answer:

i think it on of these C. y = 2x2 - 6x + 80

D. y = 2x2 + 6x - 80

Step-by-step explanation:

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3 years ago

(8x-20) (5x+37) apply angle theorem find x

Studentka2010 [4]

Value of x = 19

(8x - 20) = (5x + 37)
3x = 57
x = 19

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3 years ago

Answer yes or no to determine whether 57 is divisible by each number:

Dvinal [7]

Answer:

2 no 3 yes 4 no 5 no 6 no 9 no and 10 no

Step-by-step explanation:

it only divisible by 3 if you're talking about whole numbers. Hope this helps!

4 0

2 years ago

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Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified, exact value in terms o

Digiron [165]

Check the picture below.

$\stackrel{\textit{\Large Areas}}{\stackrel{triangle}{\cfrac{1}{2}(6)(6)}~~ + ~~\stackrel{semi-circle}{\cfrac{1}{2}\pi (3)^2}}\implies \boxed{18+4.5\pi} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{pythagorean~theorem}{CA^2 = AB^2 + BC^2\implies} CA=\sqrt{AB^2 + BC^2} \\\\\\ CA=\sqrt{6^2+6^2}\implies CA=\sqrt{6^2(1+1)}\implies CA=6\sqrt{2} \\\\\\ \stackrel{\textit{\Large Perimeters}}{\stackrel{triangle}{(6+6\sqrt{2})}~~ + ~~\stackrel{semi-circle}{\cfrac{1}{2}2\pi (3)}}\implies \boxed{6+6\sqrt{2}+3\pi}$

notice that for the perimeter we didn't include the segment BC, because the perimeter of a figure is simply the outer borders.

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3 years ago