Guys ASAP I need help on this (if you have time can you please feel free to help me on these 2 as well) Its urgent it's a 100 point assignment and I don't want to fail math class.
Question: A marine biologist discovered species with a diameter of 0.00085 inches. Express this measurement using scientific notation.
(the pics are the ones for the 100 point assignment. (i will give a massive amount of points)
Answers
Answer:
Number 3:
For Scientific
10^9
10^7
For Standard
9 x 1000000000
7 x 10000000
Number 4:
For scientific
10^7
10^2
For standard
9.45 x 10000000
2.1 x 100
Number 3 is 3*10^2 for scientific notation and 300 for standard
Number 4 is 4.5*10^5 for scientific notation and 4.5*10^5 for standard
Related Questions
Write 4,682.56 in expanded form.
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 0.1) + (6 x 0.01)
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 1/10) + (6 x 1/100)
4000 + 600 + 80 + 2 + 0.5 + 0.06
all of the above
will give brainliest
Answers
4000+600+80+2+0.5+0.06
1 : (+61)×(-28)=
2:(-36)÷(+6)=
3:(+87)+(+15)=
4: (+2)-(+96)=
5:(+60)÷(-3)=
6 :(+15)-(20)=
(+2)-(+7=
(+65)×(-20)=
Answers
2) -6
3) 102
4) -94
5) -20
6) -5
7) -5
8) -1,300
Hope this helps!
A pair of parallel lines is cut by a transversal. What are the measures of the two marked angles?
CHOICES
40 degrees and 40 degrees
40 degrees and 140 degrees
65 degrees and 115 degrees
75 degrees and 105 degrees
Answers
Answer:
Let us mark the points R and S on line p, T and U on line q, A and B on line l and C and D on line m.
Suppose the lines p and q intersect the line l at K and L respectively and line m at N and M respectively.
Since, AB is a straight line and ray KN stands on it, then
∠NKL + ∠NKA = 180∘ (Angles in a linear pair)
⇒110∘ + a = 180∘
⇒a = 180∘ − 110∘ = 70∘
Since, line p || line q and line l is a transversal intersecting them at K and L, then
∠TLB = ∠NKA (Alternate exterior angles)
⇒b = a
⇒b = 70∘
Since, line p || line q and line m is a transversal intersecting them at N and M, then
∠CNK = ∠NML (Corresponding angles)
⇒c = 115∘
Since, CD is a straight line and ray ML stands on it, then
∠NML + ∠LMD = 180∘ (Angles in a linear pair)
⇒115∘ + d = 180∘
⇒d = 180∘ − 115∘ = 65∘
HELP 15 POINT AND WILL MARK BRIANLYEST. Emma said that when you multiply three negative decimals, the product will be positive.
Use these numbers to answer the questions:
-2.5, -3.8, -2.7, 4.5
Part A: Is Emma's statement always true, sometimes true, or always false? Write two equations to support your answer. (10 points)
Part B: Write a rule for multiplying three negative decimals. (5 points)
Part C: Emma changed her statement to say that when you multiply two negative decimals and a positive decimal, the product will be positive. Is Emma's new statement always true, sometimes true, or always false? Write two equations to support your answer. (10 points)
Answers
Answer:
A)Her statement is not correct because a negative times a negative is a positive but if you times it by negative again then it will be negative again not positive
B)(–3) – (–5) = (–3) + 5 = 2
c)Yes she is correct
5 – (–3) = 5 + 3 = 8
(–3) – (–5) = (–3) + 5 = 2
Step-by-step explanation:
explanation: none
If sally reads two books a month , how many moths will it take her to read 20 books?
Answers
Answer:
10 months
Step-by-step explanation:
Which of the following is a simplified form of the expression 5 + 4(2b – 8) + 3b?
13b-29
5b+1
9b-27
11b-27
Answers
Answer:
D.11b-27
Step-by-step explanation:
I got -27+11b
But that’s the same
three ratios that are equivalent to 4:3
Answers
Answer: 8:6 ,
20:15 , 36:28
Step-by-step explanation:
Answer:
A, C, D
Step-by-step explanation:
A: 4x2 is 8 and 3x2 is 6
C: 4x5 is 20 and 3x5 is 15
D: 4x8 is 32 and 3x8 is 24
hope this helped!
p.s it would be cool if you gave me brainliest.
I NEED HELP PLZ!!
Runner 3 does not get a head start. He runs 750 meters every 3 minutes. Write an equation to represent Runner 3’s distance y for x minutes.
A. y=3x+250
B. 750x+3
C. 250x+3
D. 250x
Answers
Answer:
I think it is D!
Step-by-step explanation:
I'm not exactly for sure so if I'm wrong I'm sorry! But when writing an equation they don't have + or - and my conclusion is if you divide 750 by 3 it equal out to be 250 per minute. But I'm not for sure:(
combine like a terms
9s - 3s
Answers
Answer:6s
Step-by-step explanation:
When you combine like terms you are adding the terms that have the same coefficient (letter after number) in this case that’s 9s and -3s. When adding these two numbers together you get 6s.
Simplify: (-1/3+1/9) 4^2+5/18
A)-2/9
B)32/9
C)-59/18
D)73/18
Answers
Answer:
A -59/18
or
-3/5/18-3.27...
Step-by-step explanation:
First you wanna calculate the sum
(1/3+1/9)×4²+5/18=
-2/9×4²+5/18
Then you wanna evaluate the power
(1/3+1/9)×4²+5/18=
-2/9×16+5/18
Now you are gonna calculate the product
-2/9×16+5/18=
-32/9+5/18
Last you want to calculate the sum
-32/9+5/18=
-59/18
Sry if wrong
A)-2/9
Pardon me if this is wrong <3
Simplify the expression.
6(x+4)+1
Answers
Answer:
6 times x would be 6x and 6 times 4 is 24. the one is added on so it would 6x + 25. hope this helped
in the last election mr rosoff received 47.2% of the votes for mayor if mr rosoff received 8143 l votes how may votes were cast in the election
Answers
Answer:
Je veux juste dire que j'aime ta photo de profil, désolé je n'ai pas pu m'empêcher d'être stupide
Step-by-step explanation:
Quick only 5 minutes to answer!
Question: Tyler and Kiran each started running at a constant speed at the same time. Tyler ran 4,200 meters in 30 minutes and Kiran ran 6,300 meters in 1/2 hour. Eventually, Kiran ran 1 kilometer (1000 meters) more than Tyler. How much time did it take for this to happen?
(I'll give 12 points and I'll name you brainlist.
Answers
Answer:
14 and 2/7 minutes, or 100/7 minutes
Step-by-step explanation:
To begin with, supposed the rate at which Tyler and Kiran are running are variables T and K. We can come up with the equations
30T= 4,200 and
30K= 6,300.
Where 30 is the number of minutes, multiplied by the rate at which they are running to equal the total distance ran. We can isolate the variables by dividing both sides of both equations by 30, resulting in Tyler's speed of 140 meters per minute and Kiran's speed of 210 meters per minute.
We can then plug these values into a final equation where x is the amount of time taken for Kiran to run 1 km more than Tyler
We end up with this: 210x= 140x+1000
Solve first by subtracting 140x from 210x to get 70x, and then divide both sides by 70. This isolates x and you get a final answer of 14 2/7 minutes, or 100/7 minutes
And sorry I couldn't get this to you in the 5 minutes you needed, but I hope this at least helps you understand the concept :')
It will take 14 and 2/7 minutes, or 100/7 minutes, for this to happen.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
To begin, consider Tyler and Kiran's running rates to be variables T and K. We can create the equations.
30T= 4,200 and
30K= 6,300.
Where 30 is the number of minutes multiplied by the speed of running to equal the total distance run. By dividing both sides of both equations by 30, we can isolate the variables, obtaining Tyler's speed of 140 meters per minute and Kiran's speed of 210 meters per minute.
We have to substitute the value into a final equation where x is the time it takes Kiran to run 1 km further than Tyler.
We end up with this: 210x= 140x+1000
To begin, remove 140x from 210x to get 70x, then divide both sides by 70. This isolates x, obtaining a final result of 14 2/7 minutes, or 100/7 minutes.
Thus, It will take 14 and 2/7 minutes, or 100/7 minutes, for this to happen.
Learn more about the equation here:
brainly.com/question/13947055
#SPJ2
HURRY PLS!!! DUE TODAY!!!!
Answers
plz need help and plz show work
Answers
Answer:
could u give us details on what your learning..?
Step-by-step explanation:
MathhhhhhhhhhhhhhHhhhh
Answers
Answer:
Y=15x
Step-by-step explanation:
Like the x is 1,2,3,4 and the y is 15,30,45,60 etc.
So the formula is y=mx+b
m stands for slope
b is for y intercept. That means what is the y when x is 0.
So first slope. m=y2-y1/x2-x1 or rise/run. Rise as in the y axis and run as in the x axis.
So let’s use the first 2 points. (0,0) (1,15)
15-0/1-0= 15/1= 15
So m=15
For b, when x is zero, y is also zero. So you would just leave that part out. I mean I guess you can put a +0 but it’s unnecessary.
So y=15x
Ps. You can also try diff points for m. 30-15/2-1 = 15/1=1 ect. Even like 60-15/4-1= 45/3 = 15
In the table, 0 represents the time when the storm started. How much snow was on the
ground then?
Answers
plz help me and plz show work
Answers
Answer:
21. The slope is 50.
22. 0
23. y=50x
24. $2600
Step-by-step explanation:
21. The slope of the line is 50. Slope is defined as "rise over run". As the line increases, each segment moves up the y-axis by $50, and to the right on the x-axis 1 segment. (Work: 50 divided by 1)
22. The y-intercept is (0, 0), or simply 0. If you look at the graph you can see that the line crosses the y-axis at the origin. This makes the y-intercept equal to 0.
23. The slope tells you that the student makes $50 every week. The y-intercept is 0. Using the formula y=mx+b, an appropriate equation would be y=50x.
24. The equation found in problem 23 can me used to determine how much a student makes (y) after "x" weeks. Substitute 52 for x to solve for y. This becomes y=50(52). This can be simplified to y=2600. This means that after 52 weeks, the student will have made $2,600.
explanation idek
Marty’s dog can run 3 miles in 20 minutes. What is the dog’s speed in miles per hour?
How do you get the answer. Can you please simplify the answer so I can understand, please
Answers
Answer:
9m
Step-by-step explanation:
easy 20 20 20 each 3 m
help me please.
(tape diagrams)
Answers
Answer:
A) 13+t =17
Step-by-step explanation:
Your soccer team is holding a silent auction dinner as a fundraiser to pay for the team uniforms. The list shows all the expenses for the silent auction.
A tablet that costs $280
Soccer tickets that cost $100
A gift card that costs $20
The cost of the food is $400
The members of the soccer team will be selling tickets to the silent auction. A ticket to the silent auction includes chances to win prizes and dinner. The ticket cost is set so that 50 tickets will pay for the cost of the prizes and food
Build a function that can be used to find the total profit, f(x), the soccer team earns by selling x tickets. Show your work to build this function.
Answers
Olivia is making bead bracelets for her friends. She can make 3 bracelets in 15 minutes.
Write an equation to represent the proportional relationship.
Answers
Answer:
1*5x=total amount made
Step-by-step explanation:
A particular plant root grows 3.5 inches per month. How many centimeters is the plant root growing per month? (1 inch = 2.54 centimeters). (2 points)
Group of answer choices
6.04 centimeters
8.89 centimeters
1.38 centimeters
0.73 centimeters
Answers
Answer:
8.89 centimeters
Step-by-step explanation:
Answer:
8.89 centimeters
Step-by-step explanation:
In order to convert 3.5 inches to centimeters, we must use dimensional analysis.
3.5 inches x [tex]\frac{2.54 cm}{1 in} = 8.89cm[/tex]
Simply multiple 2.54 centimeters by 2.5 inches to find how many centimeters are in 3.5 inches. After doing that you will see that 3.5 inches equals 8.89 centimeters.
Suppose U = {1, 2 , 3, 4, 5} is the universal set and A = {1, 5}. What is A' ?
A. A' = {1, 2 , 3, 4, 5}
B. A' = {2 , 3, 4}
C. A' = {1, 2 , 3, 4}
D. A' = {2 , 3, 4, 5}
Answers
A will be equall to {2 3 4}
The value of the set A' for the set A{1,5} from the universal set will be A'{2,3,4}.
What is a set theory?The area of mathematical logic known as set theory examines sets, which are essentially collections of objects. Set theory is an area of mathematics that primarily deals with objects that are pertinent to mathematics as a whole, despite the fact that any form of an object can be gathered into a set.
Given that the universal set is U = {1, 2, 3, 4, 5}, and the set A is {1,5}. The value of the set A' will be calculated as,
U = {1, 2, 3, 4, 5
A = {1,5}
A' = {2,3,4}
Therefore, the value of the set A' for the set A{1,5} from the universal set will be A'{2,3,4}.
To know more about set theory follow
https://brainly.com/question/13458417
#SPJ2
(Giving Brainliest) Photo is below
Answers
Answer: D
Step-by-step explanation:
Your friend incorrectly claims that 1/2 divided by 1/10 = 20. Find 1/2 divided by 1/10. Then describe what may have been your friend’s error.
Answers
Answer: Your friend is wrong because they forgot that when you divide fractions you actually multiply the first fraction by the reciprocal of the other fraction. So the answer is 5.
Step-by-step explanation:
1/2 / 1/10
1/2 * 10/1
=10/2
=5
And for your specific question the answer would be the first choice “reciprocal of the dividend by”
Activity
Callie was billed $416.48 for car repairs. She will pay the service center in 4 equal monthly installments from her bank account. What is the net change in her bank account balance after each monthly payment? Complete the steps below to solve this problem and others like it.
Part B
Which rational number represents the number of months that Callie has to pay off the bill? What does the sign on the number mean?
Part C
Write an expression to represent the net change to Callie’s account balance each month.
Part D
Simplify the expression in part C to find the net change to Callie’s account balance each month.
Part E
After paying the car service center in full, Callie realizes that she should start saving money each month for her future. She decides to invest the same monthly amount that she was paying the service center in a retirement fund. If she invests in the retirement fund for one year, what will the net change in her account balance be during that time
Part F
What is the sign of the net change in part E? Why does the sign make sense in this situation?
Answers
Part A The net change to Callie’s bank account is -$416.48. The negative sign indicates money leaving Callie’s account.
Part B Callie has 4 months to pay off the bill. The rational number is +4. The sign is positive because it represents a quantity of something, in this case, months.
Part C The amount of the bill, -$416.48, will be deducted from Callie’s account in equal amounts over 4 months. So, the expression representing the net change in her account balance each month is -416.48/4 .
Part D -416.48/4=104.12
Part E The monthly withdrawal from Callie’s account continues to be -$104.12. After 1 year (12 months), the net change to her account balance will be -$104.12 × 12 = -$1,249.44.
Answer:
part a)
ANSWER: The net change to Callie’s bank account is -$416.48. The negative sign indicates money leaving Callie’s account.
part b)
ANSWER: Callie has 4 months to pay off the bill. The rational number is +4. The sign is positive because it represents a quantity of something, in this case, months.
part c)
ANSWER: The amount of the bill, -$416.48, will be deducted from Callie’s account in equal amounts over 4 months. So, the expression representing the net change in her account balance each month is -416.48/4 .
part d)
ANSWER: -416.48 / 4= -$104.12
part e)
ANSWER: The monthly withdrawal from Callie’s account continues to be -$104.12. After 1 year (12 months), the net change to her account balance will be -$104.12 × 12 = -$1,249.44.
part f)
ANSWER: The net change is -$1,249.44. The sign is negative because it represents money leaving, or being deducted from, Callie’s bank account.
i took a pic of the question. pls help me
Answers
I hope this is right
Answers
Answer:
Laverska untyska masctera A.)
Step-by-step explanation:
Unski :)
Photos attached, please help. Brainliest will be given!
Answers
Answer:
I dont see the photo srry cant help
Step-by-step explanation: