NEED HELP PLEASE
We described numbers in this lesson using both powers of 10 and using standard decimal value. For example, the speed of light through ice can be written as a multiple of a power of 10, such as (2.3)⋅108 meters per second, or as a value, such as 230,000,000 meters per second. Use the number line to answer questions about points A and B.
Describe point B as:
a. A multiple of a power of 10
____ x 10 ^ ____
b. A value
_______
Describe point A as:
a. A multiple of a power of 10
_____ x 10 ^ _____
b. A value
______
Answers
Answer:
Step-by-step explanation:
B = 2×10⁸
A = 3×10⁸
Related Questions
e the problem ose swims for 20 minutes. He rides his bike for 15 minutes longer than he swims. Then he walks his dog for 30 minutes. How long does it take Jose to swim, bike, and walk his dog? 85 minutes
Answers
Answer:
65 minutes
Step-by-step explanation:
20+15=35
35+30=65
Which of the following is the correct way to state the similarity between these two figures?
A.) ABCDE ~ YXVZW
B.) ABCDE ~ VWXYZ
C.) ABCDE ~ VZWYX
D.) ABCDE ~ ZWYXV
Answers
Answer:
ABCDE is similar to the ZWYXV
triangle DEF is similar to triangle STU. enter a proportion that contains EF and SU.
Answers
Answer:
Step-by-step explanation:
ΔDEF ~ ΔSTU ⇒ EF ~ TU and DF ~ SU ⇒ [tex]\frac{EF}{TU}[/tex] = [tex]\frac{DF}{SU}[/tex]
3. Reasoning Ben says that n = 5 is the solution of the equation 7n = 45. How can you check whether Ben is correct?
Answers
Answer:
You cant, because Ben is WRONG, unless you made a typo while writing the question
Step-by-step explanation:
If you subsitute N for 5, then the equation would be 7 x 5 = 45. However, this is not true. The correct equation is 7 x 5 = 35, so Ben is wrong UNLESS you made a typo while writing the question.
Hope this helped! If it did, please mark it brainliest! It would help a lot! :D
pls HELPPP !
solve the systems of equations of x+2y=21 and -2x-y=-12
Answers
Answer:
I really hope it's right!
How can I solve the following systems using Gaussian elimination method, w+2x-y=4, x-y=3 , w+2x-2y=7 2u+4v+w+7x=7?
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Collect like terms
Divide both sides of the equation by
Write the solution in parametric form
The next to one is
Move the variables to the right-hand side and change their signs
Divide both sides of the equation by
Write the solution in parametric form
U = 7/2 -2v - 1/2w-7/2x, ver,
Wer , xer
6/15=3/x
HELPP PLEASE
Answers
Answer:
15/2 or 7.5 :)
Step-by-step explanation:
Answer:
Step-by-step explanation:
[tex]\frac{6}{15} = \frac{3}{x}[/tex]
simply cross multiply
[tex]6x = 45[/tex]
divide both sides by 6
[tex]\frac{6x}{6} = \frac{45}{6}[/tex]
hence x will be equal to [tex]7.5[/tex]
Is it required to for it to be in decimals?
I need help ASAP I’m confused with this problem
Answers
Answer:
I believe it's A
Step-by-step explanation:
not sure but
20+ POINTS!!!
ATTACHMENT!!!!!
Answers
Answer:
D
Step-by-step explanation:
I say D because if you just multiply each number on there you get 210.
So the answer is 17 square units
HURRY!!! GIVING BRAINLIEST!!
Answers
Laura invested $2000 in a three-year CD that pays 4% compounded annually.
What is the compound interest rate and amount that will be in the bank after
3 years?
Answers
Answer:
Formula: A=P(1+[tex]\frac{r}{n}[/tex][tex])^{n times t}[/tex]Step-by-step explanation:
P= 2000 R= 0.04 aka 4% N= 1 (annually is once a year) T=3 years
2000 (1 + [tex]\frac{0.04}{1}[/tex][tex])^{1 times 3}[/tex]
Put this is in the math website desmos: 2000 (1 + [tex]\frac{0.04}{1}[/tex][tex])^{1 times 3}[/tex]
And your answer should be: A= $2249.728
Researchers studying the sticky droplets found on spider webs will measure the widths of a random sample of droplets. From the sample, the researchers will construct a 95 percent confidence interval to estimate the mean width of all such droplets. Which of the following statements about a 95 percent confidence interval for the mean width is correct?
A. The interval will be narrower if the researchers increase the level of confidence to 99 percent.
B. The interval will be narrower if the researchers increase the sample size of droplets.
C. The interval will be wider if the researchers decrease the level of confidence to 90 percent.
D. The interval will be wider if the researchers increase the sample size of droplets.
E. The width of the interval will not be affected if the researchers increase or decrease the number of droplets in the sample.
Answers
Answer:
B. The interval will be narrower if the researchers increase the sample size of droplets.
Step-by-step explanation:
Margin of error of a confidence interval:
The higher the margin of error, the wider an interval is.
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which z is related to the confidence level(the higher the confidence level, the higher z), [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
From this, we conclude that:
If we increase the confidence level, the interval will be wider.
If we increase the sample size, the interval will be narrower.
Which of the following statements about a 95 percent confidence interval for the mean width is correct?
Increasing the sample size leads to a narrower interval, so the correct answer is given by option B.
I'm in the test and need help please
Graph the solution to the following linear Inequality
Answers
Find the slope of the line
O 1/3
O 6/2
0 -3/1
03/1
Answers
Answer:
6/2
Step-by-step explanation:
The slope of the given line is 3/1, Option D is correct.
The given line is passing through the points (1, 3) and (-1, -3)
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
Plug in the values of points (1, 3) and (-1, -3) in the formula.
m= -3-3/-1-1
=-6/-2
Divide numerator and denominator by 2
We get 3
Slope of the line is 3.
To learn more on slope of line click:
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Only need help 4 to 8 please Please help me my sister in the hospital and I don’t know how to do this type of homework I’m trying my best :( pray for my sister please
Answers
Answer:
I'm so sorry for ur sister
please i will give you brainly -1,8÷9 I need step by step
Answers
Answer:
-0.2
I couldn't get step by step but hope this answer helps out a little...
(Do you need it for ur assignment?)
Step-by-step explanation:
-18/9 = 2, 9 goes into 18, 2 times, but a negative divided by a positive always = a negative number so the answer would come out to be -2.
-18/9 = 2, 9 goes into 18, 2 times, but a negative divided by a positive always = a negative number so the answer would come out to be -2.
however is you were typing -1.8 / 9 then it would be -0.2. Multiplying -0.2 * 9 would give you -1.8. Same rule applies as to why it's negative
I wasn't sure if the comma was a typo in your question but I Hope this helps :)
What does it mean to solve an equation
y+=5
Complete the satements
The valabile in the ention is represented by
to solve the equation you must find the
1 is a solution of the equation because
frat makes the equation te
satue statement
Answers
9514 1404 393
Answer:
yvalue of y1+4=5Step-by-step explanation:
In early primary education, when you're learning your arithmetic facts, you were probably exposed to math problems that looked like this:
___ + 4 = 5
In algebra problems, we give a name to the blank, and we call that name a "variable." In this problem, we have have named the blank "y". The variable in the equation is y.
y + 4 = 5
__
To answer the math question above, we fill in the blank with the numerical value that makes the statement true. To solve the algebraic equation, we find the value of y that makes the equation true.
__
1 goes in the blank to make the original statement true:
1 + 4 = 5
1 is a solution to the equation because replacing y with 1 makes 1+4=5 a true statement.
Three train stations, A, B and T are built along a straight train track, so that Tis of the distance from A to . Which situation represents the function (m) - Im?
the number of miles between train stations A A and B. it train stations A and Tare miles apart
B O the number of miles between train stations A and B. if train stations and are miles apart
C the number of miles behiveen train stations A and T. If train stations A and Barem miles apart
D the number of miles between train stations and train stations A and B are miles apart
Answers
Which of the following is equivalent to (a + b/2) ^2?
2a + 2* 4/b
2a + 4/b + 4/b^2
a^2 + 4ab + 4b^2
a^2 + 4a/b + 4b^2
a^2 + 4a/b + 4/b^2
Answers
Answer:
a^2 + 4a/b + 4/b^2
Step-by-step explanation:
Which of the following is equivalent to (a + b/2) ^2?
The expression (a + b/2)² is equivalent to (a² + b²/4 + ab).
What is algebraic expression?In mathematics, an algebraic expression is an expression built up from constant algebraic numbers, variables, and the algebraic operations.
Given is the algebraic expression as -
(a + b/2)²
We can write -
(a + b/2)² = a² + (b/2)² + 2 × a × b/2
(a + b/2)² = a² + (b/2)² + ab
(a + b/2)² = a² + b²/4 + ab
Therefore, the expression (a + b/2)² is equivalent to (a² + b²/4 + ab).
To solve more questions on algebraic expression, visit the link below -
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can you help me please
Answers
Answer:
3.96 x 10^-11
Step-by-step explanation:
Hope this helps.
The ferris wheel ride at the carnival has 15 cars. Each car holds 2 people. Let n represent the number of people on the ride at any one time.
Q: Which of these expressions best describes n?
a. n ≤ 15
b. n = 30
c. n ≥ 15
d. n ≤ 30
Answers
Please answer the questions below
Answers
Answer:
15 cm²
Step-by-step explanation:
h
a) Use your calculator to work out 18^2 - 7.9
46 - 1.8^3
Write down all the figures on your calculator display.
Answers
Answer:
I suggest PHOTO MATH app for that question download mo po:)
Answer:
a) 49.87517031
b) 49.88
Step-by-step explanation:
Use a calculator
Please help this is due TODAY
Calculate the unknown variable value .
Do not answer with a one answer, blank or a ridiculous answer please this is serious.
Answers
Z= 10cm
X= 17cm
Y= 8cm
Explanation:
One half of the image can be mirrored to the other side. This means that the variables are equivalent to the number on the exact opposite side of them.
what note receive one beat in 4/4
Answers
Answer:
Step-by-step explanation:
A quarter-note.
Plz help someone I’m very bad at math:
Bob placed a 17-foot ramp against the side of a house so the ramp rested on a ledge
that is 8 feet above the ground. How far was the base of the ramp from the house?
Answers
Answer:
get help here http://msflowersmath.weebly.com/uploads/2/7/8/6/27867809/8.3.pdf
The length of a rectangle is 4 centimeters less than its width. What are the dimensions of the rectangle if its area is 192 square centimeters?
Answers
Answer:
Width = 16 cm
Length = 12 cm
Step-by-step explanation:
Let the width of the rectangle be represented as x
Width = x cm
Length = (x - 4) cm
Area = L*W = 192 cm²
Thus:
x * (x - 4) = 192
x² - 4x = 192
x² - 4x - 192 = 0
Factorize
x² - 16x + 12x - 192
x(x - 16) +12(x - 16)
(x - 16)(x + 12)
x = 16 or x = -12
Width cannot be a negative number, therefore, the width of the rectangle = x = 16 cm
Width = x = 16 cm
Length = (x - 4) cm = (16 - 4) = 12 cm
Please need help thank
Answers
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
It has the most x's (rolls) compared to the other numbers rolled.
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP IVE BEEN WORKING ON THIS ALL DAY BRAINLYEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
1) Base RP, and height TQ
2) 56 in²
Step-by-step explanation:
1) Base RP, and height TQ
2) 56 in²
I need help please help
Answers
Answer:
76.93 ft^2
Step-by-step explanation:
it equals the whole circle's are divided by 2