Mathematics High School

1 - As células da bactéria Escherichia coli têm formato cilíndrico, com 8 x 10−7 metros de diâmetro. O diâmetro de um fio de cabelo é de aproximadamente 1 x 10−4 metros. Dividindo-se o diâmetro de um fio de cabelo pelo diâmetro de uma célula de Escherichia coli, obtém-se, como resultado a) 200. B) 135 . C) 140. D) 125.

Answers

Answer 1

Answer:

125

Step-by-step explanation:

The cells of the bacterium Escherichia coli have a cylindrical shape, with 8 x 10−7 meters in diameter. The diameter of a hair is approximately 1 x 10−4 meters. Dividing the diameter of a hair by the diameter of a cell of Escherichia coli gives, as a result, a) 200. B) 135. C) 140. D) 125

We are carrying out division operation

The diameter of a hair ÷ The diameter of a cell of Escherichia

The cells of the bacterium Escherichia coli have a cylindrical shape = 8 x 10^−7 meters in diameter.

The diameter of a hair is approximately 1 x 10^−4 meters

Therefore:

1 x 10^−4 meters ÷ 8 x 10^−7 meters

= 125

Related Questions

Students were asked how they travel to school. The graph shows the results of the survey. Based on the graph, how many students out of 300 students can be expected to walk or bike to school?

Answers

Answer:

we need the graph in order to find the answer.

Step-by-step explanation:

Can someone help me PLZ! I keep posting the same question and no ones helping me :((((((((((((

Solve this system by graphing. Include your graph on your work upload.

2x + y = 3
y = x - 3

Which point is the solution?

Group of answer choices

(-1, 2)

(2, -1)

(1, -2)

(-2, -1)

Answers

Answer:

(2, -1)

Step-by-step explanation:

The lines intersect at (2,-1), I graphed out the equations

The answer is (2, -1)


Angles 1 and 2 are an example of
angles.

Answers

Answer:

veritcal angles

Step-by-step explanation:

Given the function f(x) = 2 x + 61 - 4, for what values of x is f(x) = 6?

O x= -1, x = 11

Ox=-1, x = -11

O x= 14 = -26

O x= 26, x=-14

Answers

Answer:

[tex]x = -1[/tex] or [tex]x = -11[/tex]

Step-by-step explanation:

Given

[tex]f(x) = 2|x+6| - 4[/tex]

Required

Find x when

[tex]f(x) = 6[/tex]

Substitute 6 for f(x)

[tex]6 = 2|x+6| - 4[/tex]

Add 4 to both sides

[tex]4+6 = 2|x+6| - 4+4[/tex]

[tex]10 = 2|x+6|[/tex]

Divide both sides by 2

[tex]5 = |x + 6|[/tex]

Rewrite as:

[tex]|x + 6| = 5[/tex]

This can be split to:

[tex]x + 6 = 5[/tex] or [tex]-(x + 6)=5[/tex]

Solve for x in both cases

[tex]x = 5 - 6[/tex] or [tex]x + 6 = -5[/tex]

[tex]x = -1[/tex] or [tex]x = -6 - 5[/tex]

[tex]x = -1[/tex] or [tex]x = -11[/tex]

Answer:

i think it’s x= -1, x = -11

Step-by-step explanation:

The width of a rectangle is 4 feet, and the diagonal length of the rectangle is 15 feet. Which measurement is closest to the length of this rectangle in feet?

Answers

Answer:

a=14.46ft

Step-by-step explanation:

1) a^2*b^2=c^2

2) a^2*4^2=15^2

3) a^2*16=225

4) a^2=209

5) a=[tex]\sqrt{209}[/tex]

6) a=14.46ft

*WILL GIVE BRAINLIEST*

The sum of the areas of all the faces of a 3D object is called:

A: area
B: surface area
C: volume
D: perimeter

Answers

Answer:

b

Step-by-step explanation:

Answer:

Surface area

Step-by-step explanation:

Area is the space taken up by one surface plane

Volume is the amount of space taken up by the entire object

Perimeter is the length of all the edges of the shape combined

Please help.
Algebra.

Answers

Answer:

Number 7 is D and number 8 is A

Answer:

D. and D

Step-by-step explanation:

What are the domain and range of f(x) = 2|x – 4| + 3 ?

Answers

☁️ Answer ☁️

I think it's the second one.

Hope it helps.

Have a nice day hyung/noona!~ ￣▽￣❤️

Use a table to find (h-8)(h-9).

Answers

Well, I don’t see a table but your answer:

h^2-17x+72

Just use FOIL

The graph shows a proportional relationship between
the variables x and y.

A. Write an equation to model the relationship

B. Explain how you know if an equation or a graph
represents a proportional relationship.

Answers

Step-by-step explanation:

Equation:  y = 12x + 0

Explaination: A proportional relationship is one in which two quantities vary directly with each other. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other.

I’m sorry I rlly need the points but that answer is right tho!

Katie loves to read! In the last few months she has read 3 graphic novels, 2 mysteries, 4 sci-fi novels, and 21 comic books. What is the ratio of sci-fi novels to comic books?

Answers

Answer:

4:21

Step-by-step explanation:

since she read 4 sci-fi novels and 21 comic books, you put 4:21.

It costs $35 for one adult and two children to attend a show. It costs $60 for two adults and three children to attend the same show. How much does it cost one adult and one child to attend the show? Set up and solve a system of equations using substitution.

Answers

Answer:

For one adult it costs $15

For one child it costs $10

Step-by-step explanation:

So..

One adult = $15

Two children = $20 10×10

= $35

Then..

Two adult = $30 15×15

Three children = $30 10×10×10

= $60

Plz mark brainliest thanks

Jax takes a bus from Washington DC to New York City. The trip takes 5 hrs. and 47 minutes. He arrives in New York City at 1:58 pm. what time did the bus leave Washington DC?

Answers

Answer:

8:11 a.m.

Step-by-step explanation:

We need top subtract 5:47 from 1:58 pm.

Since we cannot subtract 5 from 1, we add 12 to the 1:58 hours digit.

1 + 12 = 13

1 pm is 13 hours of the day.

13:58 - 5:47 = 8:11

Answer: 8:11 a.m.

What is the area of major sector DFE?
A. 157.86 square cm
B. 133.94 square cm
C. 132.54 square cm
D. 125.57 square cm

Answers

Answer:

Step-by-step explanation:

Area of the circle = πr² = π7.3² = 53.29π

Area of major sector = 53.29π(285/360) ≈ 132.54 cm²

The area of major sector DFE is 132.5 sq.cm , Option C is the right answer.

What is a Major Sector ?

The region bounded by the two radii and intercepted arc in a circle is called a sector .

The angle made by the radii to the center of the circle is called central angle .

if the measure of the angle is less than 180 degree then it is called minor sector and if the angle is more than 180 degree , it is called Major Sector.

It is given that

The radii of the circle is 7.3 cm

The angle subtended by the major sector at the center is 285 degree.

The area of the sector is given by

= ([tex]\rm \theta[/tex] / 360) * Area of the circle

Area of the circle is πr²

Area of the sector = ( 285 / 360) * (22/7) * (7.3)²

Area of the sector is 132.5 sq.cm

Therefore , The area of major sector DFE is 132.5 sq.cm , Option C is the right answer.

To know more about Major Sector

https://brainly.com/question/1450993

#SPJ2

Kathy distributes jelly beans among her friends. Alia gets 42 fewer jelly beans than Kelly, who gets 33 jelly beans. How many jelly beans does Alia get?

A.

42 − 33

B.

33 + 42

C.

4 − 33

D.

33 − 42

E.

32 − 43

Answers

Answer:

The answer is D. 33-42

Step-by-step explanation:

Because it says that Alia got 42 fewer jelly beans than Kelly did so you would do 33-42.

20% of what number is 30? Which equation and solution represents each situation?

Answers

Answer:

150

Step-by-step explanation:

it would be 150. i’ll attach an image of the equation

Jay is paid $12.50 per hour. Last week, his paycheck totaled $112.50. How many hours did he work? Write and solve an equation to represent the situation.

Answers

Answer:

9 hours

Step-by-step explanation:

If he earns 12.50 an hour...

112.50 ÷ 12.50 = 9 hours

Answer:

9 hours

Step-by-step explanation:

112.50 ÷ 12.50 = 9 or 9 hours

What is the volume of the right triangular prism?
15 ft?
30 ft
150 ft
300 ft

Answers

Here's link to the answer:

tinyurl.com/wpazsebu

What is the circumference of the circle shown below?

Answers

Answer:

A. 25.12 meters

..........

It is 50.24 you take the radius and multiply by two to get the diameter then you multiply that by pi-3.14 and you get the circumference

Hope this helps

solutions to this quadratic
F(x) = x^2 + x - 2

Answers

Answer:

x = -2 & x = 1

Step-by-step explanation:

A rocket is the form of a circular cylinder closed at the lower end with a cone of the same radius attached to the top . The cylinder is of radius 2.5m and height 21m and the cone has the slant height 8m . Calculate the total surface area and the volume of the rocket

Answers

Answer:

V=462.076m ^3

Step-by-step explanation:

80% of the 30 girls at the party wanted to dance with Josh. How many girls wanted to dance with Josh?

Answers

Answer:

24 girl wanted to dance with Josh

Answer:

24

Step-by-step explanation:

30÷10=3 (10%)

3x8= 24

Seventy-two is what percent of 45?

Answers

72% of 45 would be 32.4

Answer:  160%

Step-by-step explanation:

72/45 = 1.6 x 100 = 160%

Elena has 6 yards of ribbon. She takes 1/4 yard of a ribbon to make a bow. How many bows can she make with the ribbon she has?​

Answers

Elena can make 4 bows with 6 yards of ribbon.

Answer:

she can make 4 bows

Step-by-step explanation:

can someone please help me

Answers

Answer:

Step 2 has the error because they added the five to -3 and got -8 when they should have gotten 2.

Step-by-step explanation:

Find the geometric mean between 8 and 18. Write answer as a simplified radical. No Decimals!!!!

Answers

Answer: Therefore, the geometric mean of 8 and 18 is 12. Therefore, the geometric mean of 8 and 18 is 12.

Step-by-step explanation:

equation - 2(x-2) + 3 (4x-1)=0​

Answers

Answer:

2(x-2) + 3 (4x-1) = 0​

x = 1/2

Pls answer asap, brainilest will be given to best answer, and best explanation.

Answers

Answer:

it should be D

Step-by-step explanation:

because A is going at y=30x, and B is slower than it. So there's only one choice that matches. which is y=15x

Help me??? Pleaseeeeee!?

Answers

Answer:

all u got to dooooo is take two sets of pointssss and find the rate of change using the formula y1-y2 x1/x2

Step-by-step explanation:

PLEASE HELP ASAP!
Bowler World charges $5.00 to rent shoes and $1.10 per game. Lucky Spares charges $3.00 for shoes and $1.50 per game.
Part A
Drag numbers to complete a system of equations to represent the situation, using g for number of games and c for cost. Numbers may be
used once, more than once, or not at all.

Answers

Answer:

Here hopes this helped..

Step-by-step explanation:

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