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nevsk [136]
3 years ago
12

Lines a and b are parallel and lines e and f are parallel.

Mathematics
2 answers:
Art [367]3 years ago
7 0

Answer:

Its B=82

Step-by-step explanation:

ratelena [41]3 years ago
4 0

Answer:

82

Step-by-step explanation:

shown in the image. hope it helps :)

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Choose the best graph that represents the linear equation: -2y = x + 6 Graph A On a coordinate plane, a line goes through (negat
Aleksandr-060686 [28]

Answer:

i think its A

Step-by-step explanation:

divide both sides by -2 which makes the y int -3 and A has a negative slope

6 0
2 years ago
Please answer this correctly
Firdavs [7]

Answer:

Simple:

 (-2.5,-1) goes 2.5 units left and 1 units down

 (0.5,2) goes half a unit right and 2 units up

Step-by-step explanation:

5 0
3 years ago
Which expression is a cube root of -1+ i sqrt 3? (multiple choice)
lara31 [8.8K]

Answer:

see below

Step-by-step explanation:

Find the magnitude   (-1)^2  + (sqrt3)^2 = m^2   m = 2

find the angle    arctan (sqrt3/-1) = 120 degrees

the cube root would then be

\sqrt[3]{2}(cos 40 + isin 40)

6 0
2 years ago
What is the slope of y = -3x + 3?
AnnZ [28]
<span>Use the slope intercept form y=<span><span>mx</span>+b, </span></span><span>where </span><span>m</span><span> is the slope and </span><span>b</span><span> is the y-intercept. So with saying that plug your problem in so y = -3x+3 so your answer would be m=-3 which is the slope.

~Hope this Helps! Good Luck!~
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8 0
3 years ago
Read 2 more answers
Of 560 samples of seafood purchased from various kinds of food stores in different regions of a country and genetically compared
frutty [35]

Answer:

a) (0.5256,0.5944)  

c) Criticism is invalid

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 560

Proportion of mislabeled = 56%

\hat{p} = 0.56

a) 90% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.64

Putting the values, we get:

0.56\pm 1.64(\sqrt{\dfrac{0.56(1-0.56)}{560}}) = 0.56\pm 0.0344\\\\=(0.5256,0.5944)

b) Interpretation of confidence interval:

We are 90% confident that the true proportion of all seafood in the country that is mislabeled or misidentified is between 0.5256 and 0.5944 that is 52.56% and 59.44%.

c) Validity of criticism

Conditions for validity:

np > 10\\n(1-p)>10

Verification:

560\times 0.56 = 313.6>10\\560(1-0.56) = 246.4>10

Both the conditions are satisfied. This, the criticism is invalid.

8 0
3 years ago
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