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3 years ago

Could you guys please help me with this

Mathematics

2 answers:

Anastasy [175]3 years ago

8 0

RRRRRRRRRRR I HATE THESE PROBLEMS

Alright...there are two faces with 7*12, giving us 2*84, next, two faces with 19*7, giving us 2*133, then one side with 19*12, then one side 15*19, then 2(9*12*1/2) then finally 9*19. So................. we have 1226.

Illusion [34]3 years ago

5 0

SA = 1,226 in.² (Hope this helps!)

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I need help you don't have to explain the answer I just need it, thank you!

Yuki888 [10]

Answer:

j = 38

Step-by-step explanation:

j/-2 + 7 = -12

first subtract 7 from both sides

j/-2 = -19

then multiply both sides by -2

j = 38

7 0

2 years ago

Determine the point estimate of the population proportion and the margin of error for the following confidence interval.Lower bo

Kamila [148]

Answer: The point estimate of the population proportion is . 485.

The margin of error is 0.273.

Step-by-step explanation:

Confidence interval for population proportion(p):

sample proportion ± Margin of error

Given: Lower bound of confidence interval = 0.212

Upper bound = 0.758

⇒sample proportion - Margin of error=0.212 (i)

sample proportion + Margin of error= 0.758 (ii)

Adding (i) and (ii) , we get

2(sample proportion) =0.970

⇒ sample proportion = 0.970÷2= 0.485

Since sample proportion is the point estimate of the population proportion.

So, the point estimate of the population proportion= 0.485

Now put sample proportion =0.485 in (ii), we get

0.485+ Margin of error= 0.758

⇒ Margin of error= 0.758 - 0.485 =0.273

i.e. The margin of error is 0.273.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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RUDIKE [14]

The answer is C because the angle equal each other.

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3 years ago

Read 2 more answers

Evaluate :<br> A. <img src="https://tex.z-dn.net/?f=x%5E%7Bx%5E3%7D%3D3" id="TexFormula1" title="x^{x^3}=3" alt="x^{x^3}=3" alig

sdas [7]

Answer:

$x^{x^3} = 3$
log $x^{x^3}$ = log 3
x³ log x = log 3
3x³ log x = 3 log 3
x³ log x³ = log 3³
$x^3^{x^3}$ = 3³
x³ = 3
x = $3^{1/3}$

4ˣ + 6ˣ = 9ˣ
2²ˣ + 2ˣ3ˣ = 3²ˣ

<u>Divide both sides by 2²ˣ</u>

1 + (3/2)ˣ = (3/2)²ˣ

<u>Substitute (3/2)ˣ = t</u>

t² - t - 1 = 0

<u>Solve for t:</u>

t = (1 ± √5)/2

<u>Positive root is considered as (3/2)ˣ can't be negative.</u>

(3/2)ˣ = (1 + √5)/2
x = log [(1 + √5)/2] / log (3/2)
x = 1.18681439028

7 0

3 years ago