Answer:
3 * 10 ^-2
Step-by-step explanation:
When we divide numbers in scientific notation first divide the number portion
2.7 /9 =.3
Then divide the exponents
10 ^5 / 10 ^6 = 10 ^ (5-6) = 10 ^ -1
.3 * 10 ^-1
We cannot leave the .3 since the first number has to be between 1 and less then 10
Move the decimal 1 place to the right which means subtract 1 from the exponent
3 * 10 ^-2
Answer:
0.03
Step-by-step explanation:
Hello there! Lets get started!
Now, with this problem as simple as it is, there are multiple ways we could solve it! If you have a scientific or graphing calculator, you could easily plug it in as it is! If you just have a four-function calculator, you could still solve it! Or, You could get advanced with log functions and such, but that is not needed at all for this function.
I am going to assume that you only have access to a four-function calculator, so lets begin!
First, we need to expand our numerators and denominators beyond scientific notation!
When dealing with positive scientific notation, you are moving your decimal to the right (I am not going to fully explain how to expand scientific notation, we are just going to move the decimal).
With 2.7 x [tex]10^{5}[/tex], we will move the decimal 5 places to the right!
With 9.0x [tex]10^{6}[/tex], we will move the decimal 6 places to the right!
This gives us 270000 and 9000000!
Now lets solve 270000 ÷ 9000000!
This gives us a final answer of .03!
Hope this helps! Remember, math is fun!
Use the order of operations to evaluate the expression. 4 × ( 3 4 − 1 2 ) + 3 × 6
A. 19
B. 20 1 2
C. 24
D. 33
Answer:
19
Step-by-step explanation:
4 × ( 3/ 4 − 1/ 2 ) + 3 × 6
PEMDAS
Parentheses first
4 × ( 3/ 4 − 2/4 ) + 3 × 6
4 × ( 1/4 ) + 3 × 6
Then multiply and divide from left to right
1 + 18
19
You will flip a coin 5 times and roll a die 10 times and record your findings.
What is the probability that you get heads and the number 1. Write your
answer as a percent.
Put your answer here:
P (Heads and 1)
=
Answer:
C
Step-by-step explanation:
How do flies walk on the ceiling? ...
If two fair dice, one red and one white, are rolled, in how many ways can the result be obtained?
The sum of the two dice is less than 5.
O A. 4 ways
OB. 10 ways
OC. 6 ways
OD. 5 ways
Answer:
C. 6 ways
Step-by-step explanation:
When two fair dice are rolled, the sample space of the outcome is given below:
[tex](1,1) (1,2) (1,3) (1,4) (1,5) (1,6)\\(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)\\(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)\\(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)\\(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)\\(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)[/tex]
Where in the pair (x,y), x represents the red die and y represents the white die.
The outcome in which the sum of the two dice is less than 5 are:
[tex](1,1) (1,2) (1,3) \\(2,1) (2,2) \\(3,1)[/tex]
Therefore, this result can be obtained in 6 ways.
The correct option is C.
Considering all the possible outcomes, it is found that the number of times a sum of the two dice less than 5 can be obtained is:
C. 6 ways
What are the possible outcomes when two dices are rolled?(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)
(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)
(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)
(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)
(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)
(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)
Of those, the ones with a sum of less than 5 are given by:
(1,1), (1,2), (1,3), (2,1), (2,2), (3,1)
6 ways, hence option C is correct.
A similar problem, in which the number of possible outcomes is found, is given at https://brainly.com/question/24314866
Katie has 36 coins in her jar (nickels, dimes, and quarters) totalling $4.20. She has twice as many dimes as quarters. How many nickels does Katie have?
Answer:
I think you need to mutply those. And you will get your answer.
Step-by-step explanation:
Explain the Error. A student said the volume of a cylinder with a 3- inch diameter is two times the volume of a cylinder with the same height and a 1.5 inch radius. What is the error?
Answer:
See explanation
Step-by-step explanation:
Because the formula for the volume of a cylinder is [tex]\pi r^2 h[/tex], when you multiply the radius by 2, the volume increases by [tex]2^2=4[/tex] times. Hope this helps!
5 buses left Midville each day. 40 buses left in all. How many days did buses leave Midville?
Answer:
8 days
Step-by-step explanation:
If 5 buses left Midville every day and 40 buses left in all, you have to do 40÷5=8 days
Answer: 8 days
Step-by-step explanation: 40 / 5 = 8
that is the amount of days it will take for all the buses to leave.
An employee’s hourly raise went up from $10 per hour to $14 per hour. What is the rate of increase?
Answer:
The rate of increase is 40%
14 - 10 = 4
4/10 = 40%
21:20
In which step did Yvonne first make an error?
Yvonne is solving the quadratic equation 6x2 + 24x + 7 = 0
by completing the square. Her first four steps are shown in
the table.
Yvonne's Work
Step 1
Step 2
Step 3
Step 4
Step 1
Step 2
6x² +24x+7-0
6x² +24x - 7
6(x²+4x) -7
6(x²+4x+4) - 3+24
6(x+2)²-27
Step 3
Step 4
Mark this and return
Save and Exit
Next
Submit
Answer:
Step 2Step-by-step explanation:
Given the quadratic equation 6x² + 24x + 7 = 0, the following steps must be followed when finding the roots using the completing the square method.
Step 1: Subtract 7 from both sides
6x² + 24x + 7 - 7= 0 -7
6x² + 24x = -7
Step 2: divide through by the coefficient of x²
6x²/6 + 24x/6 = -7/6
x² + 4x = -7/6
Step 3: Add half of the coefficient of x (i.e 4/2 = 2) to both sides of the equation to complete the square of the equation x² + 4x.
x² + 4x + 2= -7/6 + 2
(x+2)² = -7/6 + 2
(x+2)² = 5/6
Step 4: taking the square root of both sides
√(x+2)² = √5/6
x+2 = ±√5/6
x = -2±√5/6
x = -2+√5/6 and -2-√5/6
Based on the conclusion above, it can be seen that Yvonne made the first error in step 2. Yvonne suppose to divide through by the coefficient of x² (i.e 6)
A rental car agency charges $12 per day plus 14 cents per mile to rent a certain car. Another agency charges $15
per day plus 9 cents per mile to rent the same car. How many miles per day will have to be driven for the cost of a
car from the first agency to equal the cost of a car from the second agency?
Answer:
The cost of renting will be the same for 200 miles.
Step-by-step explanation:
Let n the number of miles and C be the cost. We can represent the cost equations for each companies:
A: C = 12 + 0.09n
B: C = 8 + 0.11n
They want to know when the cost will be the same, so we can set the above 2 equations equal to each other and solve for n:
12 + 0.09n = 8 + 0.11n
0.02n = 4
n = 200
Answer: I don't want to be rude but, you're not helping me at all.
Step-by-step explanation:
Please help me with this question
Answer: Can you elpan it so I can figgure it out
Step-by-step explanation:
Answer:
150
Step-by-step explanation:
Because the inscribed angle is 75 degrees, the angle of arc AC is 75*2=150 degrees, which is the same as the angle of its respective central angle. Hope this helps!
In a deck of cards you have 52 cards.
13 club cards (black) Ace, 2, 3, 4, 5, 6, 7, 8, 9, J, Q, K
13 spade cards (black) Ace, 2, 3, 4, 5, 6, 7, 8, 9, J, Q, K
13 diamond cards (red) Ace, 2, 3, 4, 5, 6, 7, 8, 9, J, Q, K
13 heart cards (red) Ace, 2, 3, 4, 5, 6, 7, 8, 9, J, Q, K
EXAMPLE:If I pick a card what is the probability of me picking a J? 4/52
Questions:
(1) What is the probability of picking a red card?
(2) What is the probability of getting an Ace?
(3) What is the probability of getting a 5 or a Q?
Answer:
1) 1/2
2) 1/13
3)1/169
Step-by-step explanation:
not sure about the last one
correct me if i am wrong
Pls, help with this!!!
Answer:
The first one is 8/12.
Step-by-step explanation:Add numerator and keep denominator same.
Answer:
5/12 + 3/12
Step-by-step explanation:
[tex]\frac{5}{12} + \frac{3}{12} = \frac{8}{12}[/tex]
This is because when adding fractions with the same denominator, you just add the numerators.
The other answer choices do not equal 8/12...
[tex]\frac{2}{4} + \frac{3}{4} + \frac{3}{4} = \frac{8}{4} = 2[/tex]
[tex]\frac{2}{3} + \frac{3}{4} + \frac{3}{5} = \frac{40}{60} + \frac{45}{60} + \frac{36}{60} = \frac{121}{60} = 2 \frac{1}{60}[/tex]
[tex]\frac{4}{6} + \frac{4}{6} = \frac{8}{6} = \frac{4}{3} = 1 \frac{1}{3}[/tex]
I hope this helps!
Simplify: 9p - 2p2 + 5p
Answer:
p(9-4+5) = 0p = indeterminate
Step-by-step explanation:
there's no explanation, it's a simple concentration
Answer: 5p3 - 2p2 + 14p - 4
I hope ya'll can answer this guys plz help more points!!!!!!
Answer:
32 (Answer D)
Step-by-step explanation:
-1
(4 )(2^3 / 16)
or:
1 8*16
------- * ------------ = 32 (Answer D)
4 1
Answer:
D
Step-by-step explanation:
what is 8h+7m
need help please!!!!
Answer: 14 hm
Step-by-step explanation:
Just add numbers together then put letters in order they show in equation
Answer:
I’m not 100% sure what you mean but if h is hours and m is minutes then it is 487 minutes but we need values for each letter if that is what the question is asking for.
Step-by-step explanation:
The function h represents the?
Answer: B
Step-by-step explanation:
38 height
-16 is the time
(01.01)
Evaluate −15 + (−4). (1 point)
Group of answer choices
Answer:
-19
Step-by-step explanation:
-15+ (-4)
15 + 4
19
-19
since theyre both negatives you are adding
PLEASE HELP ME!!! please asap
Answer:
Mean of the distribution shown in picture:
M = sum of all elements/number of elements
M = (2 + 6 + 4 + 2 + 0 + 1 + 6 + 4 + 2 + 1)/10 = 2.8
=> Option D is correct
(3 is closest number to mean = 2.8)
Hope this helps!
:)
what is 1.2 -0.145 because last time I did this I got it wrong
Answer:
1.055 is the answer
Answer:
1.055
Step-by-step explanation:
1.2-0.145=1.055
Lucas built a composite solid by joining 12 identical blocks, with dimensions 4 inches by 5 inches by 7 inches, into three rows of four as shown.
12 blocks are in 3 rows of 4. Each block is 4 inches by 5 inches by 7 inches.
What is the total surface area of the composite solid?
521 square inches
1,042 square inches
1,072 square inches
1,992 square inches
Answer
the answer is b. im not sure though
Step-by-step explanation:
1042 square inches is the total surface area of composite solids.
It is clear from the image that the resulting composite solid is a cuboid.
whose sides are as follows
Across the length, there are 3 blocks along the side of 7 inches each.
[tex]Length = 7 \times 3 = 21\ inch[/tex]
Width = 5 inch
Across the height, there are 4 blocks along the side of 4 inches each.
[tex]Height = 4 \times 4 = 16\ inch[/tex]
What is the total surface area of a cuboid?[tex]\text{Total Surface Area = } 2 (l\times w+ w \times h+ h \times l)[/tex]
We know that the total surface area of a cuboid is,
[tex]\text{Total Surface Area = } 2 (l\times w+ w \times h+ h \times l)\Rightarrow 2 (21 \times 5 + 16 \times 21 + 16 \times 5 )\\\Rightarrow 2 (105 + 336+80)\\\Rightarrow 2 \times 521\\\Rightarrow 1024[/tex]
Therefore, the total surface area = 1024 square inches.
To learn more about the surface area visit:
https://brainly.com/question/76387
#SPJ2
A cone has a radius of 11 inches and a height of 4.5 inches what is the volume of the cone use 3.14 for pie round to the nearest 10th
Perform the following
mathematical operation, and
report the answer to the
appropriate number of
significant figures.
7.273 - 12.37 = [?]
Answer:
-5.10
Step-by-step explanation:
shrug
SOLVE EACH Equation by completing the square
1) p2 + 8p - 33 - 0
Answer:
p = - 11, p = 3
Step-by-step explanation:
Given
p² + 8p - 33 = 0 ( add 33 to both sides )
p² + 8p = 33
To complete the square
add ( half the coefficient of the p- term )² to both sides
p² + 2(4)p + 16 = 33 + 16
(p + 4)² = 49 ( take the square root of both sides )
p + 4 = ± [tex]\sqrt{49}[/tex] = ± 7 ( subtract 4 from both sides )
p = - 4 ± 7
Thus
p = - 4 - 7 = - 11
p = - 4 + 7 = 3
Square root of 250/10.
I don’t know how to properly ask the question so I provided a picture:
Answer:
5
Step-by-step explanation:
First simplify 250/10= 25
square 25= 5
f (x) = 2 |* – 2] + 3
How to evaluate
Answer:
problem can't be solved
Step-by-step explanation:
Plz help
What is the area of the triangle?
A triangle has a base of 4 inches and height of 5.5 inches.
5 in.2
10 in.2
11 in.2
22 in.2
Answer:11in
Step-by-step explanation:
4*5.5=22/2=11
Hope I helped
Answer:
11in.2
Step-by-step explanation:
Which will hold more juice, 14 cans of 150 ml or 2L bottles?
Answer:
14 can of 150 ml
Step-by-step explanation:
14 times 150 ml is 2100 ml.
Then you have to convert 2100 into L.
Which will get you 2.1 L
And there is your answer
PLEASE MARK AS BRAINLIEST
Brendan read 4 books in 4 weeks, reading the same number of books each month, and in each week of the month. If Alicia reads 2 books each week, how many more
books does Alicia read each week than Brendan?
1.2
2.2
3.4
4.12
Answer:
idk
Step-by-step explanation:
It takes a painter and his friend 8 hours to paint a room. If the painter was working alone, it would take him 12 hours less than if his friend was working alone. How long does it take the painter to paint the room by himself? Please explain to get brainliest
Answer:
The painter paint the room by himself in 12h.
Step-by-step explanation:
If we consider that the room is the distance that the painter and his friend need to paint, then each person will have a painting speed and if we sum them they will finish the room in 8 hours. If we call the speed of the painter "x" and the his time "tx", while his friend will be "y" and his time will be "ty". We can apply each case to the average speed formula:
Both working together:
speed = distance / time
x + y = room / 8
The friend alone:
y = room / ty
The painter alone:
x = room / tx
Therefore:
(room/tx) + (room/ty) = room/8
1/tx + 1/ty = 1/8
(tx + ty)/tx*ty = 1/8
8*tx + 8*ty = tx*ty
Since tx = ty - 12, we have:
8*ty - 96 + 8*ty = ty² - 12*ty
ty² - 12*ty - 16*ty + 96 = 0
ty² - 28*ty + 96 = 0
ty = 4 or ty = 24
Since tx = ty - 12, ty can only be 24, because if it was 4, then the painter time would be negative and that is impossible. So we have:
ty = 24
tx = 24 - 12 = 12
The painter paint the room by himself in 12h.
The painter to paint the room by himself in 12 hours
How to find work done by painterLet
Work done by painter friend = xWork done by painter = yFriend
x = room / time taken
Painter
y = room / time taken
painter and friend
x + y = room / 8
(room/friend time ) + (room/painter time) = room/8
1/friend time + 1/painter time = 1/8
(friend time + painter time)/friend time × painter time = 1/8
8 × friend time + 8 × painter time =friend time × painter time
Since friend time = painter time - 12, we have:
8 × painter time - 96 + 8 × painter time = painter time² - 12 × painter time
Painter time² - 12 × painter time - 16 × painter time + 96 = 0
painter time² - 28 × painter time + 96 = 0
solve using factorization methodPt = 4 or = 24
Since friend time = painter time - 12,
Painter can is 24, because if it is 4, then the painter time would be negative and that is impossible.
So,
Painter = 24
Friend time = 24 - 12 = 12
Therefore, the painter paint the room by himself in 12 hours
Learn more about work done:
https://brainly.com/question/18762601