Jaime used a microscope to measure the diameter of a hair. She found the diameter of her hair was 0.000072 meter. How is this number written in scientific notation?
Answers
Answer:
7.2 × 10 with an exponent of -5
Step-by-step explanation:
the answer is 7.2×10 with an exponent of -5
Related Questions
20. Line L has a y-intercept of 2 and contains the points (a, a) and (2a, 12). If a is a positive constant, what is the slope of line L?
Answers
Answer:
(12 - a)/aStep-by-step explanation:
Given
Line L withy-intercept = 3Points (a, a) and (2a, 12)The slope is
m = (y2 - y1)/(x2 - x1) = (12 - a)/(2a - a) = (12 - a)/aCan someone help me please ASAP?
The darker shaded ones are positive and the lighter ones are negative.
You just have to find which one is greater.
PLEASE HELP ASAP
Answers
1 > -1
Find. What part of 40 is 16?
Answers
Answer:
40%
Step-by-step explanation:
because convert the fraction 16/40 and the answer is 40%
._.
Decide of the three numbers can be the measures of the sides of a triangle.
A. 3, 6, 1
B. 4, 9, 7
C. 7, 21, 14
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i will give u brainliest
Answers
Answer:
5/9 is equivalent to 30/54
Step-by-step explanation: 5 x 6 = 30
9 x 6 = 54
Hope this helps
Find one counterexample to show that the conjecture is false.
1 and 2 are supplementary, so one of the angles is acute.
Choose the best counterexample for the conjecture.
O A. mZ1 = 119° and mZ2 = 61°
O B. mZ1 = 39° and mZ2 = 51°
O C. mZ1 = 32º and mZ2 = 157°
O D. mZ1 = 90° and mZ2 = 90°
Answers
Please I need help and the calculation of which contract is better.
The monthly contract I am considering costs $30 per month with 75 minutes of free calls and 100 free text messages. Additional calls cost 10¢ per minute and additional text messages 10¢ each. An alternative is ‘Pay as you go’ which has no monthly charge but all calls cost 30¢ per minute and texts cost 10¢ each. I typically make 100 minutes of calls and 60 text messages each month. Which would be the better contract for me and by how much?
Answers
Answer:
You should go with the 1st, because it's cheaper.
Step-by-step explanation:
1st plan:
30$ which include 75 mins of free calls and 100 free text messages
25 more mins * 10¢ /min(0.1$/min) = 2.5$
You will pay 32.5$
2nd plan:
(calls)100*0.3$=30$
(text messages)100 * 0.1$=10$
30+10 = 40$
Tell me how to divide
Answers
Answer:
I'll try to give u an example the best way possible
Step-by-step explanation:
1) we are going to solve this division problem (84/7).
2) Divide 8 by 7 to get 1. Place this on top of the 8 and the division sign.
3) Multiply 1 and 7 to get 7. Place this under the 8.
4) Subtract 7 from 8 to get 1.
5) Carry down the 4.
6) Divide 14 by 7 to get 2. Place this on top of the 4 and the division sign.
7) Multiply 2 by 7 to get 14.
8) Subtract 14 from 14 to get 0.
The answer is 12!
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Mrs. Johnson ea...
Rhonda went out to dinner.
• The price of her meal was
$15.55.
• The sales tax was 7% of the
price of the meal.
• The tip was 18% of both the
meal and the sales tax.
How much money did Rhonda
pay for the meal, including tax
and tip?
Answers
Answer:
$18.71
Step-by-step explanation:
7.\° Of 15.55=2.22
15.55+2.22=17.77
18.\° Of 17.77=0.94
17.77+0.94=18.71
20)
Which square root is NOT a whole number?
A)
144
B)
156
C)
169
D)
196
Answers
Answer:
196
Step-by-step explanation:
196 does not have a whole number square
Benjiro and Eren are playing Fortnite. Benjiro had 4 kills in 10 minutes. Eren had
3 kills in 8 minutes. If each player continues at the same rate, who will reach more kills in 40 minutes? How many kills will each player have? Explain you answer. *
Answers
Benjiro - 16 kills
explanation - 10 goes into 40 four times, so 4x4= 16 kills
Eren - 15 kills
explanation - 8 goes into 40 five times, so 3x5= 15 kills
Answer:
Benjiro will have more kills because 40 divided by 10 is 4 so 4 times 4 is 16 while 3 times 5 is 15
Step-by-step explanation:
1. What is the value of w?
Answers
Answer:
14 is the value
Step-by-step explanation:
What's the equation of a line that passes through (-4,-7) and (4,-1)
Answers
What's the equation of a line that passes through (-4,-7) and (4,-1)
Answer:
y=-x+3
Answer:
y = 3/4x - 4
Step-by-step explanation:
Slope:
m = (y₂ - y₁) / (x₂ - x₁)
= (-1 - (-7)) / (4 - (-4))
= 6 / 8
= 3/4
y-intercept:
y = mx + b
use the slope above and anyone of the given points to find b. Let's use (4, -1)
(-1) = 3/4(4) + b
-1 = 12/4 + b
- 1 = 3 + b
b = -4
Equation of a line:
y = mx + b
use the m and b from above to form the equation of a line.
y = 3/4x - 4
PLEASE ANSWER ASAP!!!!
Answers
Answer: B
Step-by-step explanation: when you put a + and - together you get a -, so the equation turn into -40-15 which equals -55, so the answe is B
Question: After watching some fish 40 feet below the surface of the water, a scuba diver went up 15 feet to explore a coral reef. Use a number line to help you create an equation that shows the location of the coral reef in relation to the water surface.
Answer:
C. -40+15 = -25
Step-by-step explanation:
The diver went down 40 feet underneath the surface, so that would be -40. When the diver went up 15 feet, that would be adding -40 to 15. So, the diver would be going closer to the surface after coming up 15 feet. -40+15 = -25
I really hope this helps!!! Have an amazing day :3
Simplify an expression for the perimeter of the equilateral triangle shown below, in centimeters.
Show your work AND Label your answer!
1.75x – 2
Answers
Answer:
1.75×2-2
Step-by-step explanation:
What is the intermediate step in the form (x+a)2 = b as a result of completing the square for the following x^2+16x-145=10x-7
Answers
Answer:
(x+3)^2=147
Step-by-step explanation:
(63 POINTS) please answer because i really need help marking brainlest to whoever gets it correct and answers fast!!
Use the proof diagram to complete the question. State the missing reason in this proof for the letter given.
Answers
Answer:
Can you show a picture of the info?
Step-by-step explanation:
Answer:
can you send i pic of it plz
Step-by-step explanation:
What is the distance from the origin to point A graphed on the complex plane below?
On a coordinate plane, Point A is at (negative 3, negative 2).
Answers
Root of X2 - X1 squared + Y2 - Y1 squared
So here X2 is 0 X1 is 0 as the origin is 0,0
Root of Y2-Y1 squared is what we are left with
Root of -2- -3 squared
Root of 1 squared
Root of 1
Which is 1
Distance is 1
Answer:
B.) sqroot 13
Step-by-step explanation:
Lines AB and CD (if shown) are straight lines. Find x. Give reasons to justify your solutions.
Answers
Answer:
Step-by-step explanation:
The value of x is 15.
What is linear pair?Linear pairs of angles are created when two lines cross at a single point. Angles are said to as linear if they are contiguous to one another following the junction of two lines. If two angles are adjacent and their measurements add up to 180°, they are supplementary. As a result, a pair of linear angles always sums to 180°.
In a linear pair, the total of the two angles is always 180 degrees.Angles that are next to one another are called linear pairs, however not all adjacent angles are linear pairs.A common vertex and common arm are shared by a pair of linear angles.Given:
<1 = 5x-15
<2 = 90
<3 = 2x
Now, using Linear pair
5x - 15 + 90 + 2x= 180
7x + 75 = 180
7x = 180-75
7x= 105
x= 105/7
x= 15
Hence, the value of x is 15.
Learn more about linear pair here:
https://brainly.com/question/17525542
#SPJ2
1) A soccer tournament has 4 teams, A, B, C and D. Each team will play the other 3 teams once. In each game the winning team earns 3 points, losing team 0 points and ties earn 1 point to each team. After these games are completed, the two teams with the most points will play in the championship. If teams earn the same number of points then the tie-breaker is whichever team scored more goals. Team C loses their first two games to A and B. Are they automatically eliminated or is there still a chance they could advance? Explain how they could still advance or why they are already eliminated.
Answers
Answer:
b
Step-by-step explanation:
A crystal ball with a diameter of 6 inches is being packaged for shipment. If the crystal ball is placed inside a
circular cylinder with radius 3 inches and height 6 inches, how much volume will need to be filled with
4
padding? (The volume of a sphere with radius r is ar?, and the volume of a right circular cylinder with
radius r and height is arh.) Use "pi" for 7.
of padding will be needed.
Answers
Can I please get help with this?
Answers
Answer:
first problem) he messed up at 4(1 + 5n), only multiplying the 1 by 4, instead of both the 1 and 5n,
work-
-8n + 4(1 + 5n) = -6n - 14
-8n + 4 + 20n = -6n -14
12n + 4 = -6n - 14
18n +4 = -14
18n = -18
n= -1
second problem) he messed up towards the end, where he put 3x = 3x, then x=0. in this case, x would equal x, so the answer is "infinitely many solutions"
all the other work is correct in that problem
third problem) on the right side of the equation, ( 4x+10+3x-6), when they were adding the like numbers, instead of subtracting 6 from 10, they added 6, giving them 16 instead of 4
correct work-
2x - 8 + 3x +2 = 4x +10 + 3x -6
5x - 6 = 7x + 4
-5x -5x
-6 = 2x +4
-4 -4
-10 = 2x
-5 = x
hope i helped :)
PLEASE HELP!!!
#11!!!!!
Answers
Answer:
-10.9
Step-by-step explanation:
Help please!!!!!!! URGENT
Answers
Answer:
nvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
Step-by-step explanation:
cgfgbgfgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
Please answer correctly !!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!
Answers
Answer:
D
Step-by-step explanation:
180 is a flat line therefore straight!!!
Meadow is growing her hair out. The graph below shows how much her hair has grown over the last 8 months.
Which of the following shows the rate at which Meadow's hair is growing?
A.) 4 inches per month
B.) 0.50 inch per month
C.) 0.25 inch per month
D.) 2 inches per month
Answers
Zoe, Latoya, Christina, and Rhoda each used a different method to verify that Negative 2 (3 x minus 12) = negative 6 x + 24.
Answers
Answer:
Rhoda
Step-by-step explanation:
sub same values of x into both expressions. The expressions are equivalent if the values of the expressions are equal
Answer:
rhoda
Step-by-step explanation:
3(x+1)+11 = -2(x+13)
Thank you for the help
Answers
Answer:
x = -8
Step-by-step explanation:
3(x+1)+11=-2(x+13)
3x+3+11=-2x-26
3x+14=-2x-26
5x=-40
x=-8
Answer:
x = -8
Step-by-step explanation:
Step 1: Write equation
3(x + 1) + 11 = -2(x + 13)
Step 2: Solve for x
Distribute: 3x + 3 + 11 = -2x - 26Combine like terms: 3x + 14 = -2x - 26Add 2x to both sides: 5x + 14 = -26Subtract 14 on both sides: 5x = -40Divide both sides by 5: x = -8Step 3: Check
Plug in x to verify it's a solution.
3(-8 + 1) + 11 = -2(-8 + 13)
3(-7) + 11 = -2(5)
-21 + 11 = -10
-10 = -10
the variables x and y are related proportionally. when x = 8,y= 12. find y when x =56
Answers
Answer:
y = 84
Step-by-step explanation:
[tex]\frac{8}{12} = \frac{56}{y}[/tex]
Cross multiply.
8y = 672
Divide both sides by 8 to get y = 84.
select the construction that guaranties A is a reflection of point A across line BC
Answers
Answer:
I think it's Axial Symmetry.
Step-by-step explanation:
You draw a perpendicular line to the line BC through A.You get your compass and set it to the distance between the point A and the line BC. Using that distance on your compass, put the point of your compass on the point where the perpendicular line and BC intersect. Mark the distance on the perpendicular line. The reflection is the point you mark on the perpendicular line.