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3 years ago

ILL BRAINLIEST YOU PLEASE HELP ME

Mathematics

1 answer:

joja [24]3 years ago

6 0

Answer:

82°

Step-by-step explanation:

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The area of a square garden is 98 m2. How long is the diagonal?

stiks02 [169]

Answer:

The diagonal is about 14 m

Step-by-step explanation:

A = s^2

98 = s^2

s = √98

diagonal c^2 = 98 + 98

c^2 = 196

c = √196

c ≈ 14

Answer:

The diagonal is about 14 m

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3 years ago

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What is a number increased by 7 multiplied by 4?

Lana71 [14]

Answer:

Step-by-step explanation:

9 + 7 is `16, and 16 is a multiple of 4

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3 years ago

Given the function f(x)=1/2x+8 find x so that, f(x)=10 please help im stumped

Crank

Step-by-step explanation:

plug y value :

10=1/2x+8

1/2x=2

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3 years ago

It is thought that not as many Americans buy presents to celebrate Valentine's Day anymore. A random sample of 40 Americans yiel

evablogger [386]

Answer:

98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day

(0.3672 , 0.7328)

Step-by-step explanation:

Explanation:-

Given Random sample size n =40

Sample proportion

$p = \frac{x}{n} = \frac{22}{40} = 0.55$

98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day

$(p-Z_{\alpha } \sqrt{\frac{pq}{n} } , p + Z_{\alpha } \sqrt{\frac{pq}{n} } )$

The Z-value Z₀.₉₈ = Z₀.₀₂ = 2.326

98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day

$(0.55-2.326\sqrt{\frac{0.55 X0.45}{40} } , 0.55 + 2.326\sqrt{\frac{0.55 X0.45}{40} } )$

( 0.55 - 0.1828 , 0.55 + 0.1828)

(0.3672 , 0.7328)

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3 years ago

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A recreation center offers a membership for $75. Members may take classes for $10 each. nonmembers must pay $15 for these classe

Papessa [141]

If a member pays for 3 classes it will be $30 and if a nonmember for 2 classes it will be $30 dollars as well. Also, if a member pays for 6 classes it will be $60 and if a nonmember pays 4 classes it will be $60 as well

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3 years ago