What is the hydrogen ion concentration
of orange juice that has a pH of 1?
0.1 mole per liter
0.01 mole per liter
0.0001 mole per liter
0.00001 mole per liter
Answers
Answer:
0.1 mole per liter
Step-by-step explanation:
i got it right
Related Questions
if it takes 3/4 of an hour to fill 3/5 of a pool how many hours will it take to fill the pool completely
Answers
The time taken to completely fill the pool is 5/4 hour
How to determine the time to fill the pool?From the question, the given parameters are:
Time =3/4 hour
Size of the pool = 3/5
The time to fill the pool is then calculated as
Time = Given time/Proportion of the pool
Substitute the known values in the above equation
So, we have the following equation
Time = 3/4 hour ÷ 3/5
Express the quotient as product
So, we have the following equation
Time = 3/4 hour x 5/3
Evaluate the products
Time = 5/4 hour
Hence, the time taken is 5/4 hour
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About how many inches does a 30 inch diameter tire roll in one turn?
Answers
The tire covers a distance of 94.2 inch in one turn.
What is mean by Circle?A circle is the locus of a point such that its distance from a fixed point is constant.
Now, We know that;
The tire is circular. To determine the distance covered by the tire in 1 turn, we have to calculate the perimeter of the tire.
Hence, We get;
Perimeter of tire = π × diameter
= 3.14 × 30 inch
= 94.2 inch
Thus, The tire covers a distance of 94.2 inch in one turn.
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Use the triangle at the right to answer questions 7 and 8.
7.
Find the value for w?
A. 7
B. 14
C. 7V2
D. 14V2
W
14
8.
Find the value for z?
450
A. 7
Z
B. 1412
D. 73
C.
14
Answers
Answer:
7) 14✓2
8) 14
are the answers.
Step-by-step explanation:
in a triangle the sum of angles is 180 deg.
the third angle will be = 180 - 90 - 45
= 45 deg
since 2 angles in the triangle are 45 deg it means the triangle is isosceles
and in isosceles triangle the sides opposite to equal angles are equal which means
z = 14 (answer to question 8)
now in right angle triangle, by pythogoras theorem,
hypotenuse ² = base ² + height ²
thus
\( {w}^{2} = {z}^{2} + {14}^{2} \\ {w}^{2} = {14}^{2} + {14 }^{2} \\ {w}^{2} = 2 \times {14}^{2} \\ w = \sqrt{2 \times {14}^{2} } \\ = \sqrt{2} \times 14 \\ = 14 \sqrt{2} \)
answer to question 7
A square has a diagonal of 44in. I want to frame the picture, how many inches of frame do I need
Answers
The square has a 44-inch diagonal.
The pythagorean equation must be used to obtain the hand.
Diagonal (d) ^ 2 = side^2 + side ^ 2
Diagonal (d) ^ 2 = 2side (s)^2
d^2 = 2s^2
44^2 = 2s^2
1936 = 2s^2
2s^2 = 1936
s^2 = 968
s = 31.11 inches
The length of the side is around 31 inches
Perimeter = 4*s
Perimeter = 4 * 31
Perimeter = 124 inches
As a result, you will need a total of 124 inches to frame the rectangle.
Hope this helps you!!
What is factoring quadratic trinomial
Answers
Answer:
A polynomial consisting of three terms.
hello guys I really need help is anyone available please and ty
Answers
Answer:
(7,2)45 units sqrd
Step-by-step explanation:
45 units sqrd because its a 5x9
The Venus fly trap closes in 0. three seconds in the water wheel plant closes in 0.2 seconds what decimal is that way between 0.2 and 0.3?
Answers
The decimal that is way between 0. 2 and 0. 3 can be found to be the value of C. 0. 21.
How to find the decimal ?We are given that the Venus flytrap closes in 0.3 seconds, which can be represented as 0.30. Similarly, the waterwheel plant closes in 0.2 seconds, which can be represented as 0.20.
To find a decimal that is less than 0.30 but greater than 0.20, we need to look for a value that falls between these two decimals on the number line.
0.21 is a decimal that is greater than 0.20 and less than 0.30, making it the appropriate choice.
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The options are:
0.01
0.32
0.21
0.4
Help??? WILL MARK YOU BRAINLIEST
Answers
Answer:
13) Luis is wrong because he read the 80* as if his starting point was P. He needs to now take away 45 because that is the angle PTQ.
14) 165* I'm pretty sure because you just do 45 plus 60 since the centred one would only have a view of 45 from what I understand and the other two still have a view of 60 each. Total is 165.
Answer:
8. AC = 29
x = 6
AB = 6
9. BC = 15
3x = 15
x = 5
BD = 3x +4x-13
= 22
10. <PTR = 80
11. < PTQ = 45
12. <QTS = 130 - 45 = 85
13. Luis didn't subtract 80 by 40
14. 180
The base of a triangle is twice the height of the triangle.
The area of a triangle is 16 cm.
Draw the triangle on a centimetre grid.
(2 marks)
Answers
Answer:
4cmStep-by-step explanation:
\(area = \frac{1}{2} \times base \times height \\ 16 {cm}^{2} = \frac{1}{2} \times 2x \times x \\ 16 {cm}^{2} = \frac{2 {x}^{2} }{2} \\ \\ 16 {cm}^{2} \times 2 = 2 {x}^{2} \\ 32 {cm}^{2} = 2 {x}^{2} \\ \frac{32 {cm}^{2} }{2} = {x}^{2} \\ 16 {cm}^{2} = {x}^{2} \\ \sqrt{16 {cm}^{2} } = \sqrt{ {x}^{2} } \\ 4cm = x \\ \)
Ming took a cab across town. His fare was $22, and he leaves an 18, percent tip.
What is the total amount Ming pays the cab driver?
Answers
Answer:Ming pays $25.96 to the cab driver.
Step-by-step explanation:
Ming took a cab across town, his fare of cab = $22.00
He leaves a tip of 18% of total fare = 18% of $22.00
Total amount = (18% of $22) + $22.00
( 18/100× 22) + 22.00
= (0.18 × 22) + 22.00
= 3.96 + 22.00
= $25.96
Ming pays $25.96 to the cab driver.
Paul and Kelly are throwing darts at the hexagonal dartboard shown below. Paul told Kelly that if they throw darts at the board 100 times, of them should hit a 5.
If the prediction holds true, approximately how many times would their darts hit a 5?
Answers
Shown & Given:
The dartboard holds 5 in the maximum space.
Known:
Out of 100, it is know that they will hit 5 more than 50 times.
Possible Answers:
55, 66, or 77.
The most likely one is:
66
Triangle XYZ with vertices X(-4,-1). Y(-1,2), and Z(2, -4) is translated to the right 3 units.
What are the coordinates of the vertices of triangle X'Y'Z' after the translation?
Answers
Going right three units= +3 to the X coordinates. Hope this helps! :D
What rule is shown by this input/output table and coordinate plane?
A. add 3
B. subtract 2
C. divide by 3
D. multiply by 2
Answers
Answer:
add 3
Step-by-step explanation:
3+3=6 4+3=7 5+3=8
and on the graph when u graph them your answer is A.
Hope this helps:)
Solve. 5= 2M minus B divided by M plus b for b
PLEASE HELP :(
Answers
5
=
2
5
=
2
M
5=2M
5
2
=
2
2
5
2
=
2
M
2
25=22M
5=2
A pair of sunglasses cost $26 during the summer sale. If
there is a 7% tax, and Madison pays for the glasses with
$30, how much change should she receive
Answers
Answer:2.18$
Step-by-step explanation: 26 + 7% tax is 27.82 so 30 - 27.82 = 2.18$
ifa pizza that is 12 inches in diameter provides four full meals, how many meals are provided by a pizza that is 20 inches in diameter?
Answers
A pizza that is 20 inches in diameter provides sevenfull meals.
Given that a pizza that is 12 inches in diameter provides four full meals, we need to find the number of meals provided by a pizza that is 20 inches in diameter.
To find the number of meals provided by a pizza that is 20 inches in diameter, we can use the following proportion:
12 inches : 4 meals = 20 inches : x meals
where "x" represents the number of meals provided by a pizza that is 20 inches in diameter.
Cross-multiplying, we get:
12 inches × x meals = 20 inches × 4 meals
x = (20 inches × 4 meals) ÷ 12 inches
x = 6.67 meals
Therefore, a pizza that is 20 inches in diameter provides 7 full meals.
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Jake is х years old and his mother is 7x years old. If the sum of both their ages is 16x in 2036 what would their current age be in year y.
Answers
Jake is presently \(0\) years old and the year is \(2036\), which is not a relevant response or there may be some missing details in the question.
By year, what do you mean?A span of time that is equivalent to one year on the Calender but starts at a different period. A cycle of 365 and 366 day split into twelve month starting in January and ending in December.
In arithmetic, how much is a month?Every monthly on the calender has four complete weeks since every month has at least 28 days. A few month have a few more days, but these extra days don't add up to a full week, therefore they aren't counted.
Let's first find the current year, given that the year in which their ages will sum up to \(16x\) is\(2036\).
\(2036 - (y - 2036) = 2*2036 - y\)
Simplifying this expression, we get:
\(2*2036 - y = 4072 - y\)
\(2y = 4072\)
\(y = 2036\)
Now, let's find Jake's current age by subtracting his birth year from the current year \(y - (2036 - 7x)\)
Since their ages sum up to 16x in 2036, we have:
\(x + 7x = 16x\)
\(8x = 16x\)
\(x = 0\)
This means that Jake is currently \(0\) years old, which is not a meaningful answer.
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Using the unit circle, determine the value of sin(-240°).
A) -1/2
B) √3/2
C) 1/2
D) -√3/2
Answers
Answer:
B. √3/2.
Step-by-step explanation:
If we follow the circle from (1,0) clockwise through 240 degrees we end up at 120 degrees.
sin(120)
= √3/2
(HELP URGENT) Find the length of sides of ∆OTP if O is the centre of the circle ,PT is the length of
the tangent at the point of contact P and OP = (x + 2) , OT= (x − 6),PT= (x + 1)
Answers
Answer is attache in given image. Please check.
y = -2x + 1d: {-4, -3, -2, -1} ri{Blank 1:Blank 2:Blank 3:Blank 4:
Answers
Problem
y = -2x + 1
d: {-4, -3, -2, -1} ri{
Blank 1:
Blank 2:
Blank 3:
Blank 4:
Solution
For this case we just need to find the range with the domain given like this:
Blank 1: -2(-4) +1= 8+1 =9
Blank 2: -2(-3) +1= 6+1=7
Blank 3: -2(-2) +1= 4+1=5
Blank 4: -2(-1) +1= 2+1=3
HELP!!! PLEASE!!!! 55 POINTS!!!!
What is a point-slope equation of the line with slope -12 that goes through the point (5,3)?
Answers
Answer:
D. y - 3 = - 12 ( x - 5)
Step-by-step explanation:
Given
Slope (m) = - 12
Point = ( 5 , 3 ) = ( x1 , y1)
Now
Writing in point-slope equation we get
y - y1 = m( x - x1)
y - 3 = - 12 ( x - 5 )
Hope it will help :)❤
you are about to receive (0.5)k dollar, if the first 1 appears on the k-th toss. What is the expected amount you will receive?
hint given: summation of k=0 to infiity , rk = 1 / (1-r) , r ∈ (-1,1)
Answers
The expected amount you will receive is infinite. In this scenario, you are receiving a reward of (0.5)^k dollars if the first occurrence of "1" appears on the k-th toss.
To calculate the expected amount, we need to find the sum of the possible rewards weighted by their respective probabilities.
Let's denote the probability of the first "1" appearing on the k-th toss as p_k. In this case, p_k = (0.5)^(k-1) * (0.5) = (0.5)^k. The reward you receive on the k-th toss is (0.5)^k dollars.
To calculate the expected amount, we need to sum up the rewards over all possible tosses:
E(amount) = p_1 * (0.5)^1 + p_2 * (0.5)^2 + p_3 * (0.5)^3 + ...
This is an infinite geometric series with a common ratio of r = 0.5. The sum of an infinite geometric series can be calculated using the formula:
Sum = a / (1 - r)
In this case, a = p_1 * (0.5)^1 = (0.5)^1 * (0.5)^1 = (0.5)^2 and r = 0.5. Substituting these values into the formula, we get:
E(amount) = (0.5)^2 / (1 - 0.5) = (0.5)^2 / 0.5 = 0.5
Thus, the expected amount you will receive is 0.5 dollars.
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−8≤2−10
Can you please help me find it?
Answers
Answer:
-8 \(\leq\) -8
Step-by-step explanation:
-8\(\leq\)2-10
-8\(\leq\)-8
Answer:
-8
Step-by-step explanation:
-8≤2-10
2-10 = -8
-8≤-8
If a_1 =5 and a_n=-3a_{n-1} then find the value of a_5
Answers
The value of the a_5 is -405 if the a_1 =5 and a_n=-3a_{n-1} which is a geometric sequence with common ratio -3.
What is a sequence?It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.
We have:
\(\rm a_1 = 5\\\\\rm a_n = -3a_{n-1}\)
Plug n = 2
\(\rm a_2 = -3a_{2-1}\\\\\rm a_2 =- 3a_{1}\\\\a_2 = -15\)(as, \(\rm a_1 = 5\))
Plug n = 3 we get:
\(a_3 = -45\)
Plug n = 4, we get:
\(\rm a_4 =- 135\)
Now plug n = 5, we get:
\(\rm a_5 = -405\)
Thus, the value of the a_5 is -405 if the a_1 =5 and a_n=-3a_{n-1} which is a geometric sequence with common ratio -3.
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The temperature outside was 4 degrees Celsius in the morning. It has fallen by 8 degrees. What is the temperature?
Answers
Answer:
-4 degrees
Step-by-step explanation:
4 - 8 = -4
Answer:
-4 Celsius
Step-by-step explanation:
Hurry please!
Find the slope of the line
Answers
Answer:
D) 5/3
Step-by-step explanation:
1. Look at the emphasized points of the line.
2. Count how many units up you have to go to get from the lower point to the upper point. That is your top number.
3. Count how many units right you have to go to get from the lower point to the upper point. That is your bottom number.
at the volley ball game 2 out of 5 students that were attending were sixth graders , if 110 students attended the volleyball game , how many were sixth graders?
Answers
Answer:
Step-by-step explanation:
x/110=2/5
x=220/5
x=44
Answer:
44
Step-by-step explanation:
2÷5=.4
.4 sixth graders per 1 person
.4×110=44 sixth graders
Jimmy could type 80 words in a minute last week. After training, he can type 100 words now. What is the percentage increase of Jimmy's typing speed?
Answers
Answer:
25%
Step-by-step explanation:
100-80=20
80÷20=4
100÷4=25
25%
Sanjay consulted three electricians about upgrading the wiring in his home. Each electrician uses a linear formula that incorporates a flat base fee and an hourly rate to determine the cost of service. Those formulas are shown in the table.
Repair Cost Formulas
Electrician
Cost in y dollars for an x-hour service
Electrician | Cost in y dollars for an x-hour service
1 | y = 25 x + 30
|
2 | y = 30 x + 25
|
3 | y = 25 x + 20
Which statement is best supported by the table?
A:Each electrician charges a different hourly rate.
B:Each electrician charges a different base fee.
C:All three electricians charge the same hourly rate.
D:All three electricians charge the same base fee.
Answers
Answer:
The answer is B.
Step-by-step explanation:
So the form here is y=ax + b ( a indicates the hourly rate and b indicate the base fee).
For C and D, they are wrong because a1 = 25, a2= 30, a3 = 25
b1= 30, b2 = 25, b3 = 20
they are not the same.
Between A and B, A has EACH charges a different hourly rate but u can see, a1 and a3 are the same.
So it is B, they are different.
Answer: it is B
Step-by-step explanation: I’m luscious
3. Which of the quadratic functions has the narrowest graph?
y= -2x^2
y=5x^2
y = -1/2x^2
y= 1/5x^2
Answers
The quadratic function with the narrowest graph is y = 5x^2.
The graph of a quadratic function is a parabola, and the width of the parabola is determined by the coefficient of the x^2 term. The larger the absolute value of this coefficient, the narrower the graph.
In the given options, the coefficient of the x^2 term is 2 for y= -2x^2, 5 for y=5x^2, -1/2 for y = -1/2x^2, and 1/5 for y= 1/5x^2. Out of these, y = 5x^2 has the largest coefficient, and thus, it has the narrowest graph. Which of the quadratic functions has the narrowest graph?
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