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3 years ago

8

99 POINTS! PLZ HELP!!

2 answers:

yan [13]3 years ago

7 0

Answer:

If you are on usatestprep, the answer is C.m might cause n, or n might cause m.

bixtya [17]3 years ago

6 0

Answer:

The answer is C. M might cause N, N might cause M

Step-by-step explanation:

The slope of the line produced by Lisa’s graphing calculator has nothing to do with whether m causes n, n causes m, or neither (One exception to this would be if the slope were 0. This would imply no correlation, and thus, no causation.) Since the correlation coefficient (r) is 0.962 in both cases, a correlation probably exists between m and n. However, correlation does not imply causation, nor does it imply a lack of causation. Therefore, the conclusion of Lisa’s that is the most valid is m might cause n, or n might cause m.

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Find the area of quadrilateral ABCD

andreev551 [17]

Answer:

<em>A ≈ 28.5</em>

Step-by-step explanation:

a, b, c

P = a + b + c

Semiperimeter s = $\frac{a+b+c}{2}$

A = $\sqrt{s(s-a)(s-b)(s-c)}$

~~~~~~~~~~~~~~~

$P_{ABC}$ = 4.3 + 2.89 + 6.81 = 14

s = 14 ÷ 2 = 7

$A_{ABC}$ = $\sqrt{7(7-4.3)(7-2.89)(7-6.81)}$ = √14.75901 ≈ 3.84

$P_{BCD}$ = 8.59 + 7.58 + 6.81 = 22.98

s = 22.98 ÷ 2 = 11.49

$A_{BCD}$ = $\sqrt{11.49(11.49-8.59)(11.49-7.58)(11.49-6.81)}$ = √609.7343148 ≈ 24.6928

$A_{ABCD}$ = 3.84 + 24.6928 ≈ <em>28.5</em>

3 0

3 years ago

Find the area of a sector of a circle with radius 6 centimetre if angle of sector is 60 degree

Gnesinka [82]

Answer:

Step-by-step explanation:

$area=\frac{\pi r^2 \times\theta}{360} =\frac{\pi 6^2 \times 60}{360} =6 \pi \approx 18.85~ cm^2$

6 0

4 years ago

Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they

almond37 [142]

Answer:

102 an hour

Step-by-step explanation:

all you do is add all of them together

5 0

4 years ago

Bodmass<br><br>-3[2/6+8{-9/3(8-5*3)-6}]

Vadim26 [7]

9514 1404 393

Answer:

-361

Step-by-step explanation:

Your calculator can tell you the result. It is -361.

Start with the inner parentheses and work outward. Do multiplication and division in the order shown, left to right, before addition or subtraction.

-3[2/6+8{-9/3(8-5*3)-6}]

= -3[2/6+8{-9/3(8-15)-6}]

= -3[2/6+8{-9/3(-7)-6}]

= -3[2/6+8{-3(-7)-6}]

= -3[2/6+8{21-6}]

= -3[2/6+8{15}]

= -3[1/3+8{15}]

= -3[1/3+120]

= -3[361/3]

= -361

8 0

3 years ago

35,000;3,500;350; I have to find the rule to this pattern

Vikki [24]

The answer is was he number is being divided by 10

3 0

3 years ago