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3 years ago

Need help plsssss helppp

Mathematics

2 answers:

photoshop1234 [79]3 years ago

6 0

Answer:

help with what

Step-by-step explanation:

Lana71 [14]3 years ago

6 0

Answer:

here's the solution

Step-by-step explanation:

the solution is me typing

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Quick help needed, need someone to check my answer.

Verdich [7]

The answer is B. 10 vertices because it all depends on the edges. You have to subtract the edges by faces/vertices to get your faces/vertices so 20-12 is 10 so you are correct

4 0

3 years ago

Pablo has completed 44 deliveries so far this week. He needs to make 55 deliveries for the week. What

Dennis_Churaev [7]

Answer:

Step-by-step explanation:

step one:

completed delivery = 44

total delivery to be made= 55

Step two

Required is the percentage completed

the formula is

=completed/total*100

=44/55*100

=0.8*100

=80%

Hence Pablo has completed 80% of the deliveries so far

3 0

2 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:

<u><em>Explanation:</em></u>-

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)

6 0

3 years ago

Read 2 more answers

Find the sum of (6d+5)-(2-3d)

devlian [24]

I think you have to combine like terms to solve this one. (6d - 3d) + (5 - 2) = 3d + 3

7 0

2 years ago

The function h(x) is given below.

Elina [12.6K]

Answer: Option (2)

Step-by-step explanation:

The inverse of a function swaps the domain and range.

5 0

1 year ago