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3 years ago

WILL MARK BRANIEST WHO EVER GETS IT RIGHT PLEASE HELP

Mathematics

2 answers:

kaheart [24]3 years ago

8 0

Step-by-step explanation:

1.02227 is the answer of the question

Lelu [443]3 years ago

5 0

Answer:

1.02227

not sure if im correct

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TRUE OR FALSE HELP QUICK

Stolb23 [73]

The answer is true.

For example lets say the numbers given are 1, 5, 9, ...
To find the common difference, you subtract the 1st term from the 2nd term. In this case, we would do 5 - 1, which equals 4.

We must add the common difference to the last term in order to find the next term. Since the common difference is 4, we add 4 to 9, which makes 13. This applies only in the arithmetic sequence.

8 0

4 years ago

Read 2 more answers

In a Company 75% of workers are men. If 825 people work for the company who Orangemen how many workers are there in all?

puteri [66]

Answer:

1,100

Step-by-step explanation:

Since we know that 825 people are men, and that 75% of the people are men, we can write an equation to help us solve this, which is x times 0.75= 825, with x representing how many people work at the company. We must divide both sides by 0.75 to isolate the variable x and get our answer, which is 1,100 as x= 1,100 (825 divided by 0.75 equals 1,100).

8 0

3 years ago

After eating at your favorite restaurant, you know that the bill before

PilotLPTM [1.2K]

You should leave $10.52 for waiter.

The total bill will be $67.33 including tax and tip.

Step-by-step explanation:

Given,

Bill before tax and tip = $52.60

Tip = 20% of pre tax amount

Amount of tip = $\frac{20}{100}*52.60$

Amount of tip = $\frac{1052}{100}\\$

Amount of tip = $10.52

Sales tax = 8%

Amount of sales tax = $\frac{8}{100}*52.60$

Amount of sales tax = 0.08*52.60

Amount of sales tax = $4.208

Final bill = Bill + Tip + Sales tax

Final bill = 52.60 + 10.52 + 4.208 = $67.33

You should leave $10.52 for waiter.

The total bill will be $67.33 including tax and tip.

Keywords: percentage, addition

Learn more about addition at:

#LearnwithBrainly

8 0

4 years ago

refer to the graphic novel frame below. write and solve an equation to find how many movies they have time to show.

Bogdan [553]

Answer:

Number of movies that can be shown = 2

Step-by-step explanation:

Given:

Movie night duration = 4 hours

Duration of each movie = 1.75 hours

Time given for eating popcorn = 0.5 hours

Time alloted for movies (excluding popcorn time) = 4 - 0.5 = 3.5 hours.

Number of movies that can be shown = $\frac{Total\ time\ alloted\ for\ movie}{Time\ for\ 1\ movie}=\frac{3.5}{1.75}= 2$

5 0

3 years ago

Which of the following is not one of the 8th roots of unity?

Anika [276]

Answer:

1+i

Step-by-step explanation:

To find the 8th roots of unity, you have to find the trigonometric form of unity.

1. Since $z=1=1+0\cdot i,$ then

$Rez=1,\\ \\Im z=0$

and

$|z|=\sqrt{1^2+0^2}=1,\\ \\\\\cos\varphi =\dfrac{Rez}{|z|}=\dfrac{1}{1}=1,\\ \\\sin\varphi =\dfrac{Imz}{|z|}=\dfrac{0}{1}=0.$

This gives you $\varphi=0.$

Thus,

$z=1\cdot(\cos 0+i\sin 0).$

2. The 8th roots can be calculated using following formula:

$\sqrt[8]{z}=\{\sqrt[8]{|z|} (\cos\dfrac{\varphi+2\pi k}{8}+i\sin \dfrac{\varphi+2\pi k}{8}), k=0,\ 1,\dots,7\}.$

Now

at k=0, $z_0=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 0}{8}+i\sin \dfrac{0+2\pi \cdot 0}{8})=1\cdot (1+0\cdot i)=1;$

at k=1, $z_1=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 1}{8}+i\sin \dfrac{0+2\pi \cdot 1}{8})=1\cdot (\dfrac{\sqrt{2}}{2}+i\dfrac{\sqrt{2}}{2})=\dfrac{\sqrt{2}}{2}+i\dfrac{\sqrt{2}}{2};$

at k=2, $z_2=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 2}{8}+i\sin \dfrac{0+2\pi \cdot 2}{8})=1\cdot (0+1\cdot i)=i;$

at k=3, $z_3=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 3}{8}+i\sin \dfrac{0+2\pi \cdot 3}{8})=1\cdot (-\dfrac{\sqrt{2}}{2}+i\dfrac{\sqrt{2}}{2})=-\dfrac{\sqrt{2}}{2}+i\dfrac{\sqrt{2}}{2};$

at k=4, $z_4=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 4}{8}+i\sin \dfrac{0+2\pi \cdot 4}{8})=1\cdot (-1+0\cdot i)=-1;$

at k=5, $z_5=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 5}{8}+i\sin \dfrac{0+2\pi \cdot 5}{8})=1\cdot (-\dfrac{\sqrt{2}}{2}-i\dfrac{\sqrt{2}}{2})=-\dfrac{\sqrt{2}}{2}-i\dfrac{\sqrt{2}}{2};$

at k=6, $z_6=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 6}{8}+i\sin \dfrac{0+2\pi \cdot 6}{8})=1\cdot (0-1\cdot i)=-i;$

at k=7, $z_7=\sqrt[8]{1} (\cos\dfrac{0+2\pi \cdot 7}{8}+i\sin \dfrac{0+2\pi \cdot 7}{8})=1\cdot (\dfrac{\sqrt{2}}{2}-i\dfrac{\sqrt{2}}{2})=\dfrac{\sqrt{2}}{2}-i\dfrac{\sqrt{2}}{2};$

The 8th roots are

$\{1,\ \dfrac{\sqrt{2}}{2}+i\dfrac{\sqrt{2}}{2},\ i, -\dfrac{\sqrt{2}}{2}+i\dfrac{\sqrt{2}}{2},\ -1, -\dfrac{\sqrt{2}}{2}-i\dfrac{\sqrt{2}}{2},\ -i,\ \dfrac{\sqrt{2}}{2}-i\dfrac{\sqrt{2}}{2}\}.$

Option C is icncorrect.

5 0

3 years ago