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3 years ago

Please need help thank you so much

Mathematics

1 answer:

sineoko [7]3 years ago

8 0

D. And trapezoid is not a quadrilateral.

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U = 2x - 2 (Solve for x) Hurry!

kobusy [5.1K]

X=1

because you would add two to the other side and have 2x=2 divide by 2 and you would be left with x=1

4 0

3 years ago

Enter numbers into the table so that the paired values are in a proportional relationship.

Alisiya [41]

Answer:

x- 5

y- 6

Step-by-step explanation:

A proportional relationship is a relationship for which a proportional constant y/x exists and for which it passes through (0,0) or the origin.

The proportional constant is 6.

18/3=6

42/7=7

54/9=6

Thus the filled in blanks should be x 1, 3, 5, 7, 9 and y 6, 18, 30, 42, 54.

8 0

3 years ago

Read 2 more answers

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu.Assume that the

worty [1.4K]

Answer:

95% confidence interval for the true mean cholesterol content of all such eggs.

(173.8175 , 196.1825)

Step-by-step explanation:

Step(i):-

Given mean of the sample x⁻ = 185 milligrams

Given standard deviation of the sample 'S' = 17.6 milligrams

Level of significance

∝ = 0.05

$t_({\frac{\alpha }{2} , n-1 }) = t_{0.025 ,11} = 2.2010$

Step(ii):-

95% confidence interval for the true mean cholesterol content of all such eggs.

$(x^{-} - t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} } , x^{-} + t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} })$

$(185 - 2.2010 \frac{17.6}{\sqrt{12} } , 185 + 2.2010 \frac{17.6}{\sqrt{12} })$

( 185 - 11.1825 , 185 + 11.1825)

(173.8175 , 196.1825)

Final answer:-

95% confidence interval for the true mean cholesterol content of all such eggs.

(173.8175 , 196.1825)

3 0

3 years ago

Poppy is 5 years older than Cairo. Their ages in years added up to 25. How old is Poppy and Cairo?

postnew [5]

Answer:

10 and 15

Step-by-step explanation:

let Cairo's age be x then Poppy's age is x + 5 , then

x + x + 5 = 25

2x + 5 = 25 ( subtract 5 from both sides )

2x = 20 ( divide both sides by 2 )

x = 10

That is Cairo is 10 years old and Poppy is 15

6 0

3 years ago

Read 2 more answers

I need help with this question

12345 [234]

Answer:

regular polygon:

E & C

irregular polygon:

A & B

Not polygon:

D & F

Explanation:

regular polygon:

has equal sides however the number of side and regular shape and it has equal angles between its sides. "ex" (equilateral triangle)

as in figure C & E.

Irregular polygon:

the opposite of regular polygon but both has a straight line all over the shape. as in figure B & A.

not a polygon:

it's may be a circle or a part of it.as in figure D & F.

4 0

3 years ago