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3 years ago

Amswer plss in number 7 plsss

Mathematics

2 answers:

drek231 [11]3 years ago

5 0

a.{ m,e,a,i,t} This answer is certain

Scilla [17]3 years ago

4 0

Answer:

Step-by-step explanation:

union is U

A U B = m,e,a,t,i

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What 2 things are recommended in order for you to have a neat graph

Oksana_A [137]

Answer:

use a ruler

buy a graph

Step-by-step explanation:

Not the best answer tho... becuase this useless Mod deleted all my answers randomly

6 0

3 years ago

HELP WILL GIVE BRAINLIEST

nadezda [96]

Answer:

$\frac{x^{2} }{1} +\frac{y^{2} }{2}=1$

Step-by-step explanation:

The directrices of an ellipse are defined by

$x=(+-)\frac{a}{e}$

Where $a >b$ , and $e$ is the eccentricity defined by $e=\frac{c}{a}$

So, in the first choice, we have the equation

$\frac{x^{2} }{4}+\frac{y^{2} }{1} =1$

Where $a^{2}=4$ and $b^{2}=1$ , which means $a=2$ and $b=1$ .

In an ellipse, we have the relation

$c^{2}=a^{2}-b^{2}$

Replacing values, we have

$c^{2} =4-1=3\\c=\sqrt{3}$

So, the eccentricity is $e=\frac{\sqrt{3} }{2}$ and the directrices are $x=(+-)\frac{2}{\sqrt{3} }$ , which means the first choice is not the right answer. In other words, the right answer is the second choice, because third and fourth choices don't represent an ellipse, both fractions must be positive in that case.

Therefore, the right answer is

$\frac{x^{2} }{1} +\frac{y^{2} }{2}=1$

3 0

3 years ago

A factory packages 4250 boxes of cereal. The number of oat cereal boxes is 715 more than the number of wheat cereal boxes. The n

ozzi

O = number of oat cereal, w = number of wheat cereal, f = number of fruit cereal:

o + w + f = 4250
o = w + 715
f = 5w

The second equation tells us the value of o in terms of w, and the third equation tells us the value of f in terms of w, so we can plug in "w + 715" for o and "5w" for f in the first equation:

o + w + f = 4250
(w + 715) + w + (5w) = 4250

Then, add like terms and subtract and divide to isolate the w:

w + 715 + w + 5w = 4250
7w + 715 = 4250 Subtract 715 on both sides:
7w = 3535 Divide by 7 on each side:
w = 505

Now that we have w, we can plug it into the last equation to find f, the number of fruit cereal boxes:

f = 5w
f = 5(505)
f = 2525

Therefore, the factory packages 2525 fruit cereal boxes.

4 0

4 years ago

Find x in the given figures. Thanks in advance! xD

docker41 [41]

Answer:

x=8 an they are at the exact opposite side

Step-by-step explanation:

4 0

3 years ago

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Slope intercept form

Arada [10]