2 years ago

Evaluate 3 to the second power + (8 - 2 ) • 4 - 6/3

Mathematics

1 answer:

puteri [66]2 years ago

7 0

Answer:

Step-by-step explanation

(3^2) + ((8-2)x4)-(6/3)

9+(24)-2

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What number is 62% of 50

goldfiish [28.3K]

$62\% \ of \ 50= 62\% \times 50=\frac{62}{100} \times 50= \frac{62}{2} \times 1=31$

31 is 62% of 50.

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3 years ago

Which decimal number is equal to 318 ? 0.167 0.16¯ 0.16¯¯¯¯ 0.167¯¯¯¯¯

skad [1K]

Answer:

3/18 = 1/6 =.16666666.....

.16(would be repeating)

your choice D and A are the same, and choice C and B are the same!

hope this helps!

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3 years ago

This is for 16 points<br> Let me know when you got it

Sladkaya [172]

Yeah B it’s B I’m pretty sure

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2 years ago

One variable examined is the survival rate 10 years after tagging. The scientists observed that 10 of the 50 metal tagged pengui

Oksana_A [137]

Answer: 90% confidence interval would be $(-0.2483,-0.0717)$

Step-by-step explanation:

Since we have given that

n₁ = 50

Number of metal tagged penguins survived = 10

So, $p_m=\dfrac{10}{50}=0.2$

n₂ = 50

Number of electronic tagged penguins = 18

So, $p_e=\dfrac{18}{50}=0.36$

So, at 90% confidence interval, z = 1.28

So, interval would be

$(p_m-p_e)\pm z\sqrt{\dfrac{p_m(1-p_m)}{n}+\dfrac{p_e(1-p_e)}{n}}\\\\=(0.2-0.36)\pm 1.28\sqrt{\dfrac{0.2\times 0.8}{50}+\dfrac{0.36\times 0.64}{50}}\\\\=-0.16\pm 0.0883\\\\=(-0.16-0.0883,-0.16+0.0883)\\\\=(-0.2483,-0.0717)$

Hence, 90% confidence interval would be

$(-0.2483,-0.0717)$

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3 years ago

a truck is carrying waterbottles. 1/4 of the the total number of bottles in the truck plus 18 bottles is equal to 56 bottles. ho

frosja888 [35]

18 minus 56 which is 38 bottles and then divide that by 1/4 so your answer would be152 bottles in all

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3 years ago

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