A grain of sand has a diameter that is 2 mm long. Under a magnifying glass, it looks 20 mm long. What magnification was used?​

Answers

Answer 1

Answer:

Times 10 magnify

Step-by-step explanation:


Related Questions

Which of the following is a Pythagorean triple?

Answers

C.
just plug those numbers in a Pythagorean theorem equation to see if they are triples

Answer:

C: 8, 15, 17

Step-by-step explanation:

The easiest way to do this is simply to memorize the first few Pythagorean triples. It saves time. But it can also be hard to remember that. To see if something is a triple...

1. [tex]a^{2} + b^2=c^2[/tex]. This means square the first one, the second and add. Then square the last one. The sum of the first two with the last one should be the same.

2. For this to work, they have to be in order from least to greatest. All of these are.

3. Let's fill in the equation:

8^2= 64.

15^2= 225.

225+64= 289

17^2= 289.

It matches! It's a triple.

please help me on this one and hurrry please

Answers

Answer: 10/30

Step-by-step explanation:

There are 30 cards and 10 - 10= 0. So it’ll just be 10/30

Oak Street and Elm Street run parallel to each other. When Main Street intersects them, it forms interior ∠4, measuring 50°. What is the measure of ∠8?
A. 60°
B. 50°
C. 90°
D. 130°

Answers

The answer to your question is B. 50 degrees. Have a great day

Answer:

is B). 50

Step-by-step explanation:

How do I find the SURFACE AREA of the shape below.

Answers

Area of 2 triangles = 2*(1/2)*6*8

= 48 square ft

Area of 1 rectangle = 10*5

= 50 square ft.

Area of 2nd rectangle = 5*6

= 30 square ft.

Area of 3rd rectangle = 5*8

= 40 square ft.

Surface area of figure = 40+30+50+48

= 168 square ft.

What fraction of the class has the number of pets that occurs most often? Express your answer as a percent, too. *

Answers

Answer:

i dont think you have included all the info of the question so if you do that i might be able to help you :)

Step-by-step explanation:

Bob can paint a house in 9 hours. Jim can paint it in 10 hours. How long would it take them to paint the house working together?​

Answers

Answer:

Well they are 2 possible answers. 10 - 9, and 10 + 9. I don't know what answers you can choose, and what operation you use but those were the only I got. I'm sorry if this didn't help.

Step-by-step explanation:

Which expression is equivalent to 36 a minus 27?

Answers

Answer:

9(4a minus 3) is equivalent to 36a minus 27.

Help me please thanks

Answers

2t + 16

hope it helps...!!!!

Write and solve a proportion to answer the question. Round the answer to the nearest tenth.

What percent of 36 is 20?

Answers

Answer:

7.2

Step-by-step explanation:

36 divided by 5 = 7.2

7.2 times 5 = 36.

A figure is composed of two cubes. The side lengths of the larger cube are twice the side length of the smaller cube. If the total volume of the cubes is 1,944 m3, what are the side lengths of the two cubes? Enter the smaller dimension first

Answers

The side lengths of the two cubes are 6 meters and 12 meters respectively.

How to calculate the volume of a cube?

Mathematically, the volume of a cube is calculated by using this following formula:

Volume = m³

Where:

m is the side lengths of a cube.

Translating the word problem into an algebraic expression, we have;

m³ + (2m)³ = 1944

m³ + 8m³ = 1944

9m³ = 1944

m³ = 1944/9

m = ∛216

m = 6 meters.

For the bigger cube:

2m = 2 × 6

2m = 12 meters.

Read more on volume of a cube here: brainly.com/question/25248189

#SPJ1

6.
What are the focus and the directrix of the graph of x =
2012
1
-J22 (1 point)
(
24
O focus (0, -6), directrix x = 6
O focus (6,0), directrix x = -6
O focus (0,6), directrix y = -6
O focus (-6, 0), directrix y = 6

Answers

focus (0,6), dirextrix y=-6
it’s the third one

Tyler packed 8 shirts for a trip. Six of the shirts are short-sleeved. He randomly selects a shirt from his suitcase, replaces the shirt, and then selects another.

The two times Tyler selects a shirt from the suitcase are __________ events.

The probability that he selects a short-sleeved shirt both times is ________.


options for blank 1: independent, dependent

options for blank 2 :15/28, 9/16, 3/4, 9/14

Answers

Answer:

independent  

9/16

Step-by-step explanation:

The events are independent events since he puts the first shirt back

P( short sleeve) = number of short sleeve)/ total

                          = 6/8 = 3/4

P ( short sleeve, short sleeve) = 3/4 * 3/4 = 9/16

SOLVE THE QUADRATIC FUNCTION
ANSWER CORRECTLY AND GET BRAINLIEST

Answers

Answer:

[tex] x = \dfrac{-1 \pm \sqrt{11}}{2} [/tex]

Step-by-step explanation:

(2x - 3)² - 14 = 2x(x - 7)

4x² - 12x + 9 - 14 = 2x² - 14x

2x² + 2x - 5 = 0

[tex] x = \dfrac{-2 \pm \sqrt{2^2 - 4(2)(-5)}}{2(2)} [/tex]

[tex] x = \dfrac{-2 \pm \sqrt{4 + 40}}{4} [/tex]

[tex] x = \dfrac{-2 \pm 2\sqrt{11}}{4} [/tex]

[tex] x = \dfrac{-1 \pm \sqrt{11}}{2} [/tex]

Write the number 6\times 10^{-3}6×10 {−3}
in standard form.

Answers

Answer:

6 · 10⁻³

Step-by-Step Explanation:

The number 6 time 10 to the power -3 is 6 · 10⁻³ in standard form.

Need help with at least these questions. Please. I can give 100 points and brainliest to the person who gives a VALID answer

Answers

Answer:

360\12=16.36

Step-by-step explanation:

formula=22/7*6*6*10=16.36

what is the next two term in the sequence 6, 10, 14, 16

Answers

Answer:

Next two terms of the sequence is 20 and 24.

Step-by-step explanation:

The arithmetic sequence is 6, 10, 14 , 16

First term (a) = 6

Subtract the first term from the second term:

10 - 6 = 4

Subtract the second term form the third term:

14 - 10 = 4

Subtract the third term from the Fourth term:

16 - 14 = 4

Here, You will notice that each time you move from one number to the next one it increases by four. So, the difference between one and the next term is four.

So,

Next two terms are:

16 + 4 = 20

20 + 4 = 24

Hence,

Next two terms of the sequence is 20 and 24.

Step-by-step explanation:

Given Sequence :- 6 , 10 , 14 , 16

To find :- Next 2 terms in the sequence

Solution :-

D( common difference ) = a2 - a1

D = 10 – 6

D = 4

Next two terms ,

16 + D ; 16 + 4 = 20

20 + D ; 20 + 4 = 24

Two students are pulling an object with ropes. one student pulls with a force of 40 pounds at an angle of 30° above the ground, and the other student pulls with a force of 35 pounds at an angle 45° above the ground. what is the direction of the resultant force?

Answers

The magnitude of the force of 34.64 is more than the magnitude of the force of 24.75. The direction of the force is on the 34.64 sides.

What is force?

The product of mass and its acceleration is known as force.

Two students are pulling an object with ropes. one student pulls with a force of 40 pounds at an angle of 30° above the ground, and the other student pulls with a force of 35 pounds at an angle of 45° above the ground.

Then the direction of the force will be

→ 40 × cos 30° = 34.64

→ 35 × cos 45° = 24.75

Then

34.64 - 24.75 = 9.89

Then the direction of the force is on the side of 40 pounds.

More about the force link is given below.

https://brainly.com/question/13191643

Answer: the direction of the resultant force is 37.33 degrees above the ground.

Step-by-step explanation:

edge :)

2.1. A researcher observed the vehicles passing through a toll booth during a five-minute period. She
observed 14 trucks, 27 SUV'S, 17 compact cars, 22 mid-size cars, and 8 luxury
cars pass through the toll
Based on the data, which percentage is closest to the relative frequency that a vehicle passing through
booth.
the toll booth is an SUV?

Answers

Answer:

B- 31%

Step-by-step explanation:

sorry i don’t have the explanation, but i hope i helped

Which fractions are closer to 0 than to 1?

Answers

Answer:

Fractions that are less than 1/2 but more than 0 are closer to 0 than to 1.

Step-by-step explanation:

Another explanation of this is anything that is less than 0.5 is closer to zero.

Hope this helps! Have an amazing day! :D

research shows that the probability of a person being right handed is 0.77 how many left handed people would you expect in a population of 25000?​

Answers

Answer:

Left handed ppl per 100 = 23

Left handed ppl per 25000 = 23 x 250

Answer = 5750

pls mark as brainliest

What is the product of 4.45 and 2.2?

Answers

Answer:

Hello there! I believe it is 9.79

Step-by-step explanation:

Have a great rest if your day!

Answer:

The answer is 9.79

Step-by-step explanation:

4.45 x 2.2 = 9.79

I need help on the question in the image

Answers

820.05 you take the starting number and subtract and add the other numbers based on if there is a minus sign or not

30 POINTS!!!!!!!!!
Which of the following tables represents a function?

A.
B.
C.
D.
PLS ANSWER FAST AND CORRECT!!

Answers

Answer:

B

Step-by-step explanation:

Each input is related to exactly one output, and it's progressing in a linear fashion.

The answer is B that represents a function

A function f(x) has x-intercepts of –3 and –5. what is the constant term in the function? f(x) = x2 8x

Answers

The constant term in the function f(x) = x² + 8x + 15 would be 15.

What is a quadratic equation?

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

A function f(x) has x-intercepts of –3 and –5 means

f(x) = (x+3)(x+5)

f(x) = a(x + 3)(x + 5), here a is a multiplier

let a = 1 then

f(x) = (x + 3)(x + 5) (expand factors)

f(x) = x² + 8x + 15

thus, 15 is the constant term

Learn more about quadratic equations;

brainly.com/question/13197897

This is Science I could not pick...
I put Math ca it is the best I could pick because there is no Science option.
_____ are considered dietary proteins.
oils
apples
potatoes
eggs

Answers

Answer:

Oils

Step-by-step explanation:

:)

Answer:

oils

Step-by-step explanation:

Peter plays a game where each correct answer gets him -3 points and every incorrect answer gets him 1 point. If he got 6 correct and 4 incorrect answers, how many points does he have? Write an equation and solve.

Answers

Y=-3x+z
Y=-3(6)+4
Y=-18+4
Y=-14

What value of x will make the triangles similar by the sss similarity theorem? x =

Answers

The  value of x will make the triangles similar by the sss similarity theorem is 77

Simlarity theorem of triangles

A triangle is a 2-dimensional shape with 3 sides and angles

From the given diagram, we will take the ratio of simlar sides to determine the value of "x"

35/x = 20/44

Cross multiply

20x = 35 * 44
20x = 1540
x = 154/2
x = 77

Hence the  value of x will make the triangles similar by the sss similarity theorem is 77

Learn more on similarity theorem here; https://brainly.com/question/21247688

Answer: The answer is 28

What is the perimeter of kite obde? 17 units 23 units 27 units 60 units

Answers

The perimeter is the sum of all sides. Then the perimeter of the kite is 27 units, then the correct option is C.

What is Geometry?

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

The length of the kite (x) will be given by the Pythagoras theorem

H² = P² + B²

H² = 15² + 8²

H² = 225 + 64

H² = 289

 H = 17

Then

[tex]\rm x = \dfrac{H}{2} \\\\x = \dfrac{17}{2}\\\\x = 8.5[/tex]

And another length of the kite is 5 units.

Then the perimeter of the kite will be

Perimeter = 2(8.5 + 5)

Perimeter = 27

More about the geometry link is given below.

https://brainly.com/question/7558603

The sphere of mass m and radius r is rigidly attached to a thin rod of radius r that passes through the sphere at distance 12r from the center. A string wrapped around the rod pulls with tension t.

Answers

The expression for the angular acceleration of the sphere will be 20Tr/13MR².

What is angular acceleration?

It should be noted that angular acceleration simply means the time rate of change of the angular velocity.

From the information given, I = (2/5(MR² + M(R/2)² = MR²(2/5 + 1/4) = 13MR²/20

The torque (Q) will be Tr. Therefore, the expression for the angular acceleration of the sphere will be:

= Q/I

= Tr/13MR²/20

= 20Tr/13MR²

Learn more about angular acceleration on:

https://brainly.com/question/20912191

Somebody pls help me do this

Answers

Answer:

-0.7 + 0.5 - 0.3

= -1 + 0.5

= -0.5 pound(s)

-0.5 = -5/10

plot your point at -5/10

(for the number line)

Other Questions
need help with 3 and 4 Wrong Answer will be reported!Do you think Michael Lewis would give a different speech to graduating college students now that he has experienced the tragic loss of his own daughter? The diagram shows a right angled triangle 13cm, 24 degrees, what is the value of H? Which expression represents the surface area of the prism? Kate and Ashton have been approved for a $250,000 15-year mortgage with an APR of 4.2%. How much of their first monthly payment will go to interest, using the simple interest formula? PLEASE HELPWhich rule transforms G to G' and H to H'?On a coordinate plane, point G is (negative 2, 3), H is (2, 5), H prime is (5, 0), and G prime is (1, negative 2).CLEAR CHECK(x,y)(x+3,y3)(x,y)(x+5,y+3)(x,y)(x3,y+5)(x,y)(x+3,y5) What is the answer to this!?? How does paragraph 2 develop the argument that school uniforms limit students' ability to do well in school?A. by emphasizing that school uniforms are dull and therefore cause students to become bored with their studiesB. by explaining how uniforms hinder students' ability to develop the creative skills they need to get good gradesC. by providing evidence that school uniforms are directly responsible for students' poor performance in schoolD. by stating that students need to be allowed to express themselves by wearing clothes they choose themselves If , m-2/12=1/6then which of the following is true?1. m + 2 = 22. 2 m + 2 = 53. m + 4 = 64. 2 m + 4 = 5HELP ILL GIVE YOU 75 POINTS Help! I need to finish work. Brainlist will be given to the most helpful! Cite three examples to describe how an engineer ensures that his or her designs are made to scale. Find the value of the figure on the left. A classmate states that if the radius of a circle is doubled, then its area is doubled. Do you agree or disagree? If you disagree how much larger do you think the area will be? Brainliest! Help, thank you so much!! Please be righttttt lots of points too!!! PLEASE PLEASE HELP ME WITH THIS I NEED ASAP THESE ARE TRUE OR FALSE QUESTIONSAre the following statements true or false? (20 Points)a. If the domain of a uniform continuous probability density function is 8.0then its height is = 0.1684b.If the domain of a uniform continuous probability density function is 8.0then P(14.0< X pls pls pls help ill give you a dollar :) Help Me on this!![tex] \: \: \: \: \: \: \: \: \: \: \: \: [/tex] consider the right triangle shown. what are the values of sin x and cos x? A. sin x = 5/13, cos x = 12/13 B. sin x= 12/13, cos x= 5/13 C. sin x= 13/5, cos x= 13/12 D. sin x = 13/12, cos x= 13/5 2. What is America's great strength, according to Paine? Mandy charges all of her customers by weight so she gets $5 per kilogram of corn cobs or $1.25 for an individual corn cob. If Mandy is going to sell over 100 kilograms of corn cobs today, what is the best profit per corn cob she can make?