All categories

2 years ago

CAN SOMEONE PLEASE HELP ME WITH THIS QUESTION !! 3 √5 + 15 √5

Mathematics

2 answers:

nataly862011 [7]2 years ago

7 0

Answer:

18√5 or Decimal Form: 40.24922359…

Step-by-step explanation:

Eduardwww [97]2 years ago

4 0

Answer:

18√5

Step-by-step explanation:

Collect like terms - (<u>3+15</u>)√5

Add the numbers - <u>18√5</u>

You might be interested in

Lily had 95 inches of yarn. After cutting 4 pieces that were each the same length, she had 15 inches of yarn left.

Anika [276]

Each was 10 inches because she had 95 and 95-15=40 divided by 4 = 10

6 0

3 years ago

Read 2 more answers

Selle y is riding her bike grad modern

irinina [24]

Huh? What does this mean?

7 0

3 years ago

The base of a circular fence with radius 10 m is given by x = 10cos(t), y = 10sin(t). the height of the fence at position (x, y)

Karo-lina-s [1.5K]

The average height of the fence is 2 m; its length is 20π m. So, its 2-sided area is
A = 2*(2 m)*(20π m) = 80π m² ≈ 251 m²

At 1 L/(100 m²), it will take 2.51 L of paint to paint both sides.

6 0

3 years ago

A data set includes 103 body temperatures of healthy adult humans having a mean of 98.3degreesF and a standard deviation of 0.73

faust18 [17]

Answer:

CI = (98.11 , 98.49)

The value of 98.6°F suggests that this is significantly higher

Step-by-step explanation:

Data provided in the question:

sample size, n = 103

Mean temperature, μ = 98.3

Standard deviation, σ = 0.73

Degrees of freedom, df = n - 1 = 102

Now,

For Confidence level of 99%, and df = 102, the t-value = 2.62 [from the standard t table]

Therefore,

CI = $(Mean - \frac{t\times\sigma}{\sqrt{n}},Mean + \frac{t\times\sigma}{\sqrt{n}})$

Thus,

Lower limit of CI = $(Mean - \frac{t\times\sigma}{\sqrt{n}})$

Lower limit of CI = $(98.3 - \frac{2.62\times0.73}{\sqrt{103}})$

Lower limit of CI = 98.11

and,

Upper limit of CI = $(Mean + \frac{t\times\sigma}{\sqrt{n}})$

Upper limit of CI = $(98.3 + \frac{2.62\times0.73}{\sqrt{103}})$

Upper limit of CI = 98.49

Hence,

CI = (98.11 , 98.49)

The value of 98.6°F suggests that this is significantly higher and the mean temperature could very possibly be 98.6°F

7 0

3 years ago

Type the correct answer in each box. Use numerals instead of words.

IceJOKER [234]

Answer:

Theo worked for 12 hours and Kade worked for 15

Step-by-step explanation:

if kade worked for 10 hours Theo works for 7 so in total they worked for 17 hours together. So what you do is you just continue counting kades hours, subtracting 3 then add those number together till you get the total of 27 hours.

3 0

2 years ago