Mathematics Middle School

Why are we unable to see x-rays?

btw I know this is not math but I put it as math because if I put it as physics no one would see it ;-;

Answers

Answer 1

Answer:

they're similar to visible light except their wave length is much shorter, causing them to be invisible to the naked eye

Answer 2

Answer:

We are unable to see x-rays because x-ray light it is too blue for us to see.

Step-by-step explanation:

Too much blue light can cause retina damage to the eye or eye strain. Their are kinds of lens that help protect you from blue light. There are good things about blue light but this is why we can't see x-rays.

I hope this helps!

Related Questions

A sand wedge normally costs $65.00. It is on sale for 20% off the regular price. What is the discount of the sand wedge? A) $15.00 B)$16.25 C) $46.00 D) $52.00

Please..help​

Answers

Answer:

D

Step-by-step explanation:

20% of 65 is 13

65-13=52

I think it’s D 20% of 65 is 13 so if u do the rest it should be D

Is 24/36 ,= 4/6 idk please help me people

Answers

The answer is 2/3

24/36 both can decided by 12.
there’s 3 answers,

24/36 divided by 4 = 6/9

24/36 divided by 6 = 4/6

24/36 divided by 2 = 6/18

24/36 divided by 12 = 2/3

basically your correct.

WILL GIVE BRAINLIEST
How can 65% be broken down with friendly percents to find 65% of a number?
25% + 25% + 10%
25% + 10% + 10% + 10% + 10%
50% + 10%
50% + 25%

Answers

Answer:

25% + 10% + 10% + 10% + 10%

Step-by-step explanation:

Hope my answer helps. Happy holidays!

(please consider giving me brainliest)

25% + 10% + 10% + 10% + 10%
when you add them together this is the only one that gets you to 65%

someone help me please im very stuck

Answers

Answer:

(0,2)

Step-by-step explanation:

from y=mx+b to find the y intercept b

Answer:

y = -7

Step-by-step explanation:

It's a horizontal line so y is constant, it would be y = b because the slope is 0.

Since it passes through the point (5, -7) we can assume the line is at y = -7

A student said, “To find the value of 109.2÷6, I can divide 1,092 by 60.”

Do you agree with this statement? Explain your reasoning.
Calculate the quotient of 109.2÷6 using any method of your choice.

Should I do what can 6 go into 1,10,109? or just do the whole thing? (But not the 2 yet)

Answers

Answer:

I agree with the statement.

Step-by-step explanation:

As long as both numbers are being multiplied by the same quantity, you will always end up with the same number.

At a school, 460 of the students walk to school.
The number of students who take public transit is 20% of the number of students who walk. How many students take public transit?

The number of students who bike to school is 5% of the number of students who walk. How many students bike to school?

The number of students who ride the school bus is 110% of the number of students who walk. How many students ride the school bus?

Answers

Answer:

There are 92 students who take public transportation

Step-by-step explanation:

There are 460 students who walk

20% of those who walk take public transportation

Students who take public transportation = 460*20%

Changing this to decimal form

Students who take public transportation = 460*.20 = 92

There are 92 students who take public transportation

Hope this helped! :)

There would be 92 kids who take public transportation

Half of the students in Max's class volunteer at the local community center. Fifteen students do not volunteer. If there are 12 boys in Max's class, how many girls are in his class?
Write an expression to represent the situation.

Answers

Answer:

18

Step-by-step explanation:

15 x 2 = 30

30 - 12 = 18

18 girls are in his class

There are 18 girls in the class

In Mr. Dalle’s class, 13 students wear glasses and 9 do not. What is the ratio of students who do not wear glasses to the number of students who wear glasses?
A.9 to 13
B.9 to 22
C.13 to 9
D.13 to 22

Answers

Answer:

a

Step-by-step explanation:

because students have good eyesight while others dont.

Answer:

AAAAAAAAA  

Step-by-step explanation:

TRUST ME AND STAY SAFE

Barb needs to run a total of 9 miles each week. So far, she has run 4 miles this week. How much father does she need to run? Write an equation and solve to figure out how many miles she needs to run.

Step by step

Answers

Answer: Wouldn't the answer be 5 because 4 plus 5 is 9?

Step-by-step explanation:

Answer:

5 more miles

Step-by-step explanation:

They need to run 9 miles but has already ran 4.

9-4=5

5 miles left to go!

(Hope this helps and I hope I'm not wrong...)

6/7 1/2 in simple form

Answers

Answer:

6/7 is 6/7 and 1/2 is 1/2 unless your trying to divide them then it would be 1 5/7

Step-by-step explanation:

Helpppppp noww pleaseeee

Answers

Answer:

-5

Step-by-step explanation:

Free point sorry needed it

Which equation represents a line that is parallel to the line whose equation is y=-3x?
A) 1/3x+y=4
B) -1/3x=y=4
C) 6x+2y=4
D) -6x+2y=4

Answers

the answer is C!! if you have any more questions you can ask here! ill try my best to help!

132-3 838 38 383

2838440505

i can do the illustrations myself

Answers

integers are a whole number that isn’t a fraction ,examples: 0,1,2,3 non examples: 3.14, 1 1/2(this is a fraction)

There are no values of x and y that make y = -x + 10 and y = 2x + 4 true at the same time. True or False

Answers

Answer:

False

Step-by-step explanation:

there is no number for x and y to make both true

hop it helps :)

The person above is right

What is the sum of 421, 237, 112, and 100?

Answers

Answer:

870

Step-by-step explanation:

Answer:

870

Step-by-step explanation:

4 2 1

2 3 7

1 1 2

1 0 0

_____

8 7 0

1/4 x __ = 1/2 = ?
I need this answered ASAP, it's 80% of my grade
PLEASE helppppppp

Answers

the answer is 2.

1/4 x 2 = 1/2.
2 - 1/4 x 2 is 1/2 I’m pretty sure

A pharmacist put 4.536 ounces of vitamin pills into bottles. She put .042 ounce of vitamin pills into each bottle.

How many bottles did the pharmacist use for these vitamin pills?

Answers

Answer:

108 bottles

Step-by-step explanation:

the total is 4.536 oz of vitamin pills

each bottle can accomodate 0.042 oz of vitamin pills

to know the quantity of each bottle

we calculate

0.042 oz of vitamin pills  = 1 bottle

4.536 oz of vitamin pills = (4.536 x 1)/0.042=108

so therefore 4.536 oz of vitamin pills will accommodate 108 bottles

arrange in order from smallest to largest:
0, 1, 1/2, 5/8, 9/10, 2/5

Answers

Answer:

can't you just look it up?

Step-by-step explanation:

Answer:

0, 2/5, 1/2, 5/8, 9/10, 1

Step-by-step explanation:

1/2= 0.5

5/8 = 0.625

9/10 = 0.9

2/5 = 0.4

so it will be

0, 2/5, 1/2, 5/8, 9/10, 1

After restocking the vending machines, Efrain determined that 2 out of every 5 packages of candy sold were M&M'S®. The vending machine sold 160 packages of candy last week. How many packages of M&M'S® were sold?

Answers

Answer:

64

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

Which symbol replaces the box to make the statement true? 18÷6+3□6+12÷3
A.
C. =

Answers

Answer:

(=) is the correct answer

The Symbol that replaces the box to make the statement true is an equal sign: =

Write a ratio equivalent to the ratio 10:15.
a. 15:10 c. 10:30
b. 80:120 d. 40:75

Answers

Answer:

B is correct

Step-by-step explanation:

Multiply both sides by 8

Answer: i think it is B 40:75

Step-by-step explanation: i hope this helps have a blessed day

Erica earn money by tutoring and babysitting. She always tutors for 5 hours each week and the amount she babysits changes from week to week. let x be the hours that arica babysitters. Write an expression to show the total numbers of hours erica works each week.
Numbers That you have to use to solve this problem: +,-, . , =, ( , ), x, 5, 8, 13

Answers

Answer: could u put it in a simpler way pls .....

Step-by-step explanation:

Which ordered pair is located on the x-axis?

(0, -5)
(0, -5)

(1, -5)

Answers

Answer:

-5,0

Step-by-step explanation:

Jenny packaged 108 eggs in 9 cartons. Write this statement as a rate.
Plzz help ik I suck at math

Answers

Answer:

12

Step-by-step explanation:

Answer:

Jenny packaged 12 eggs per carton

Step-by-step explanation:

we know that

To find the rate divide the total amount of eggs by the total number of cartons

 

108/9 = 12 eggs/cartons

must fill out whole sheet, and you don't have to explain, just the answer will be fine. 100 points + brainliest for best answer

Answers

1.a    2 + 22s          

1 b.  -6a + 8            

2a.  81r + 18            

2b.  132+ 50p          

3a.  -36 - 4r              

3b. 40 + -25m          

4a. 6+16r              

4b.  -28z + 7          

5a.   96y - 40

5b.   -99u -72

6a. 77 - 63m

 6b.  -40 - 35p

  7a. -72v + 6d

7b.   -45b - 9c

Look at this inequality: 12−4x ≤ 20

Which of these shows the solution to this inequality?

Question options:

Answers

Answer: The last line is the answer

12 - 4x < 20

20 - 12 = 8

-4x = 8

-4/4 = 8/-4

x = -2

New inequality: x > -2

Step-by-step explanation:

The correct option is d. The solution to the linear  inequality 12 - 4x ≤ 20 is x ≥ -2 by solving the inequality.

To solve this inequality,  to isolate the variable x.

Step 1

subtract 12 from both sides of the inequality:

        [tex]12 - 12 - 4x \leq 20 - 12,[/tex]

which simplifies to

         [tex]-4x \leq 8.[/tex]

Step 2 :

Divide both sides of the inequality by -4. However, when  divide by a negative number, the direction of the inequality sign must be flipped. So   x ≥ -2, indicating that x is greater than or equal to -2.

Therefore, the solution to the inequality is x ≥ -2. The correct option is d.

Learn more about solving inequalities here:

https://brainly.com/question/21857626

#SPJ6

These are hard for me

Answers

3. C
4. 2
5. C
hope this helps:)

Answer:

3: D

4: 2:

5. C: 9/5

Step-by-step explanation:

this is a khan academy question

Answers

The answer is... A because your trynna find the answer and -2 1/2 is different from there first number so you separate them from each other

Hope this helps

Answer:

Its A hope this is correct, please give me brainliest, my dog died today :(

Step-by-step explanation:

6m- (7 + 4m)
ANSWER ASAP

Answers

Answer:

=2m−7

Step-by-step explanation:

Tengo ___ . Necesito agua.

Answers

Answer:

sed

Step-by-step explanation:

Hope this helps!!!

Answer:

What does that mean?

Step-by-step explanation:

Other Questions
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