Answer:
1 : 10000
Step-by-step explanation:
Energy of a photon of x-rays of wavelength = 0.05 nm
Energy of a photon of visible light of wavelength = 500 nm
The ratio is given as;
0.05 : 500
1 : 10000
Therefore, ratio of the energy of a photon of x-rays of wavelength to that of a photon of visible light of wavelength is 1 : 10000
Find the equation of a line that contains the points (4,−1) and (−1,−4). Write the equation in slope-intercept form, using fractions when required.
Answer:
y = 3/5x - 17/5
Step-by-step explanation:
slope formula: (y₂ - y₁) / (x₂ - x₁)
First, plug in these values of the two given points.
(-4 - (-1)) / (-1 - 4)
Simplify within the parentheses.
(-4 + 1) / (-1 - 4)
(-3) / (-5)
3/5
This is your slope. Plug this into a standard slope-intercept equation: y = mx + b
To find b, we want to plug in a value that we know is on this line: in this case, I will use the second point (-1, -4). Plug in the x and y values into the x and y of the standard equation.
-4 = 3/5(-1) + b
Multiply.
-4 = -3/5 + b
Add 3/5 to both sides. -- To add it easier, convert 4 to a have a denominator of 5.
-20/5 = -3/5 + b
-20/5 + 3/5 = b
-17/5 = b
Now, plug this into your standard equation.
y = 3/5x - 17/5
Check this equation by plugging in the other point you did not use (4, -1)
-1 = 3/5(4) - 17/5
-1 = 12/5 - 17/5
-1 = -5/5
-1 = -1
Your answer is correct!
Hope this helps!
If f(x) = 3x - 2 then what is f(10)/
Answer:
28
Step-by-step explanation:
f(10) means replace all x's with 10. f(10) = 3(10) - 2 -> 30-2 = 28
Shawna bought 2 notebooks that cost $2.19 each. She paid for them with a
$5 bill. Which number sentence can be used to find how much money
Shawna received in change?
A. (2 x 5.00) + 2.19 =
B.
5.00 + (2 x 2.19) =
C.
(2 X 5.00)
2.19
OD 5.00
(2 x 2.19)
Select a number shown by the model . Check all that apply .
Answer:
E, D, F
Step-by-step explanation:
One complete tenths block would represent 1 which is a whole number. In the problem, two of the tenths squares are filled in which means that that part is equal to 2. In the third block, that represents 4/10 or 0.4. Putting them together would equal 24/10, 2 4/10, and 2.4
a quotient that is between 8÷0.001 and 8÷110.
Answer:
Step-by-step explanation:
I don't actually know if this is what you want but
8 divided by 0.001 is 8000
and
8 divided by 110 is 0.07272727272727272
I hope this helps
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP I'LL GIVE BRAINLEST
Answer:
Well, it is a right angle, which means 90º
Step-by-step explanation:
I'm not sure if this is the answer or if it is correct.. Sorry!
4b5+4b3+16b2
Please factor this
Answer:
4b^2 (b^3 + b + 4 )
Step-by-step explanation:
2x-1-(-x+3) = 6-2x SHOW STEPS....DUE TODAY
Answer:
x=2
Step-by-step explanation:
Simplify both sides of the equation.
2x−1−(−x + 3)=6−2x
(Distribute the Negative Sign)
2x−1 + −1(−x + 3)=6−2x
2x + −1 + −1(−x) + (−1)(3)=6−2x
2x + −1 + x + −3=6−2x
2x + −1 + x + −3=6 + −2x
(Combine Like Terms)
(2x + x) + (−1 + −3)=−2x+6
3x + −4=−2x + 6
3x−4=−2x + 6
Add 2x to both sides.
3x−4 + 2x=−2x + 6 + 2x
5x−4=6
Add 4 to both sides.
5x−4 + 4=6 + 4
5x=10
Divide both sides by 5.
5x/5=10/5
x=2
Kwame fills a bird feeder with seeds. As
birds visit the feeder, the height of the
seeds changes from 13.6 cm to 11.1 cm
over a period of 6 1/4 hours. What is the
average change in the height of the seeds
each hour?
Answer:
Step-by-step explanation:
Givens
Time = 6.25 hours
distance = 13.6 cm - 11.1 cm = 2.5 cm
Formula
rate = distance / time
Solution
rate = 2.5 / 6.25
rate = 0.4 cm/hour
Please help me with this question. Thank you :)
Plz help I’m confused
Geometry 15 points
Use the Law of Detachment and the Law of Syllogism to draw a conclusion from the three given statements.
If an elephant weighs more than 2000 pounds, then it weighs more than Jill's car.
If something weighs more than Jill's car, then it is too heavy for the bridge.
Smiley the elephant weighs 2150 pounds.
What is the value of the following expression if q = 10?
24 divided by (q-2)
HELPPP
Answer:
(B) 3
Step-by-step explanation:
24/(10-2)
24/8 is 3
Draw the box-and-whisker plot for the data.
33, 50, 30, 45, 30, 41, 27, 34, 50, 49, 40, 40, 35, 25, 28
Answer:
this example of a box whisker plot
Step-by-step explanation:
try to input your numbers
TIME REMAINING
59:50
The table shows the mean number of basketball goals made by four random samples of players from the school team
during this year's season.
Sample #
Sample Mean
Number of Goals
7
1
4
2
3
5
4
8
Is a valid prediction for the mean of the population possible using these samples?
O No, there are not enough samples.
Yes, the sample means are all less than 10.
Yes, the variation of the sample means is small.
O No, the variation of the sample means is too great.
Mark this and retum
Save and Exit
Next
Submit
Answer:
I'd say yes, because you have a good variety of samples. (B.)
Step-by-step explanation:
Solve for x.
71°
X°
42°
Answer:
67
Step-by-step explanation:
a triangle equals 180
180-71-42= 67
!!!I’ll mark brainlest and it’s worth 30 points, it’s for a math test and i’m really confused.!!!
If angle 1 = 55°, what is angle 5?
A. 55°
B. 40°
C. 35°
D. 25°
thanks ;)
Solve 2(x + 1) = 2x + 5. (1 point)
1) Expand.
2x+2=2x+5
2) Cancel 2x on both sides.
2=52=5
3) Since 2=52=5 is false, there is no solution.
No Solution
Therefore, this equation has no solutions.
-20x(-5)-50 evaluate
Answer:
it's 50 because I know trust me
Answer:
50
Step-by-step explanation:
-20x-5-50= 50
What is the description of the pattern in the sequence?
5, 10, 20, 40, 80,...
The pattern is to multiply by 2.
The pattern is to add 2.
The pattern is to add 5.
The pattern is to multiply by 5.
Answer:
It is to multiply by 2Step-by-step explanation:
Zoe buys a new car that is valued at $24,000. The car will depreciate at
a rate of 1% per month. What is the value of the car after 6 months?
Answer:
120
Step-by-step explanation:
Principal = 24,000
Rate = 1%
Time = 6 months = 0.5
Simple Interest = 24000×1×0.5 ÷ 100
= 120
PLEASE HELP ME GIVE ME THE ANSWER AND TELL MME STEP BY STEP HOW U GOT IT ILL MARK U BRAINLIEST
Answer:
Its only D.
Step-by-step explanation:
My brain hurts already.
First you do 3x3 then 9x9x9 then 3x3x3x3x3x3 then multiply what you get for 9x9x9 by 3x3x3x3x3x3 then divided by 81 and get your answer.
7. The figure shows a right rectangular prism whose base is a square...
Answer:
D
Step-by-step explanation:
Which of the following is a decomposition reaction?
reactant plus reactant yields product
reaciant minus reactant yields product
reactant yields product plus product reactant yields product times product
Answer:
Reactant plus reactant yields product.
Step-by-step explanation:
A decomposition reaction starts from a single substance and produces more than one substance. One substance as a reactant and more than one substance as the products is the key characteristic of a decomposition reaction.
Hope this helps.
Round to the tens place to estimate the answer.
172 x 18 =
Answer:
3400
Step-by-step explanation:
When you round to the tens place you look at the number in the ones place. If it is 4 or less then you keep the tens place the same. If it's 5 or more then you round the tens place up one. Then you make the ones digit a 0.
Since there is a 2 in the ones place in 172, you keep the tens digit the same (170).
Since there is an 8 in the ones place in 18, you round the tens digit up one (20).
Now you multiply.
170×20=3400
I hope that made sense.
If each 2 cm on the scale drawing equals 10 feet, what are the actual dimensions of the room? (5 points) Length = 11 feet, width = 9 feet Length = 30 feet, width = 20 feet Length = 8 feet, width = 12 feet Length = 22 feet, width = 20 feet
Answer:
c and i blue
Step-by-step explanation:
x + y = 4
2x - 5y = 15
Graphing
Answer:
Step-by-step explanation:
5x + 5y = 20
2x - 5y = 15
7x = 35
x = 5
5 + y = 4
y = -1
(5, -1)
Can 12m , 16m ,20m firm a right angle
Answer:
yes,it will be because. 12^2+16^2=20^2
144+256=400so,that it prove the two side of a sum is equal to opposite side.so,the the firm be a right angle.
Answer:
Yes, it is a right triangle
Step-by-step explanation:
12^2+16^2=20^2 if a right triangle
144+256=400
It takes a turtle 3 ¼ hours to walk 1 ½ miles. How many hours does it take to walk one mile?
Answer: 2.17 hours
Step-by-step explanation:
Answer:
2.17 hours
Step-by-step explanation:
help pleAsee zknsmfm
Answer:
C
Step-by-step explanation:
(x+2) * x
X^2 +2x
A piece of cake has 347 calories in it.How many calories are there in 8 piece of cake.
Answer:
2776 calories
Step-by-step explanation:
35
347
x 8
____
2776 calories
Answer:
2776 calories
Step-by-step explanation:
To figure out the answer, I did 347×8 to get me an answer to 2776 calories.