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3 years ago

What are all the solutions? 4x^2+9y^2=72 x^2+y^2=5

Mathematics

2 answers:

Genrish500 [490]3 years ago

8 0

(3,2) (3,-2) (-3,2) (-3,-2)

Ilya [14]3 years ago

4 0

There is no solution.
If you graph both equations they never touch.

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Leila ran for president of the chess club, and she received 36 votes. There were 40 members in the club. What percentage of the

Troyanec [42]

Answer:

90% of the club member voted for Leila

Step-by-step explanation:

Leila ran for president of the chess club and she received 36 votes . The club has a total of 40 members . The percentage of the club member that voted for her can be computed below.

total member of the club = 40

number that voted for her = 36

a% of 40 = 36

a/100 of 40 = 36

40a/100 = 36

cross multiply

40a = 3600

divide both sides by 40

a = 3600/40

a = 90 %

90% of the club member voted for Leila

5 0

3 years ago

(8.2) • (8.2) • (8.2) exponential expression

OlgaM077 [116]

571.787

Step-by-step explanation:

The expression (8.2) • (8.2) • (8.2) can be written as 8.2³. This is the same as finding the value of 8.2 cubed

Hence, 8.2³ = 571.787

Learn More

Cubes : brainly.com/question/1580776

Keyword : exponential expressions

#LearnwithBrainly

8 0

3 years ago

A box is partially filled with books. If 24 cubic inches of the box are already filled and there are 12 cubic inches of space le

nikitadnepr [17]

Answer:

The box has a total volume of 36 cubic inches.

Step-by-step explanation:

The total volume of the box is given by the volume that is filled with books plus the volume that doesn't have any books in it. Therefore, in order to solve this problem we must sum the two volumes. We have:

total volume = volume with books + volume without books

total volume = 24 + 12

total volume = 36 cubic inches

The box has a total volume of 36 cubic inches.

4 0

2 years ago

Please help me with the questions please ASAP please please ASAP ASAP please ASAP

Olegator [25]

Answer:

If I am doing this correctly it should be 58

Step-by-step explanation:

VF=36 so VN/FN = 13

EI = 42 so EN/IN = 21

EF = 24 so VI = 24 (Parallel)

13 + 21 + 24 = 58

7 0

3 years ago

Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n=500, x=

DiKsa [7]

Answer:

0.3581<x<0.4429

Step-by-step explanation:

Using the formula for calculating the confidence interval of the population proportion p expressed as:

Confidence interval = p ± Z * √p(1-p)/n

p is the population proportion = x/n

p = 200/500

p = 0.4

Z is the z-score at 95% CI = 1.96

n is the sample size = 500

Substituting the given parameters into the formula we will have;

Confidence interval = 0.4 ± 1.96 * √p(1-p)/n

Confidence interval = 0.4 ± 1.96 * √0.4(0.6)/500

Confidence interval = 0.4 ± 1.96 * √0.24/500

Confidence interval = 0.4 ± 1.96 * √0.00048

Confidence interval = 0.4 ± 1.96 * 0.0219

Confidence interval = 0.4±0.04294

Confidence interval = (0.3571, 0.4429)

Hence the confidence interval of the population mean is 0.3581<x<0.4429

5 0

3 years ago