Answer:its actually 20%
Step-by-step explanation:
I looked it up
This Question: 1 pt
20 of 20
This Qu
th
The pH of a fruit juice is 2.9. Find the hydronium ion concentration, [H30 * ), of the juice. Use the formula pH = -log[H30*]
The hydronium ion concentration [H30 + ] is approximately moles per liter.
(Use scientific notation. Use the multiplication symbol in the math palette as needed. Round to the nearest tenth as needed.)
Answer:
scientific" (and any subsequent words) was ignored because we limit queries to 32 words.
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Watching your neighbors toddlers for $15/1.5 hours or babysitting your cousins for the day for $60/8 hours. Which one pays more?
Answer:
.
Step-by-step explanation:
Answer:
Babysitting your cousins
Step-by-step explanation:
Becauss 15/1.5 is 3. And 60/8 is 7.5
if tan27° =k express the following in terms of k
1. sin 27°
Answer:
) ''You need to consider 200^o = 180^o + 20^o , hence you need to use the next formula to evaluate sin 200^o in terms of k:
sin (alpha + beta) = sin alpha*cos beta + sin beta*cos alpha
Plugging alpha = 180^o , beta = 20^o in the formula yields:
sin 200^o = sin (180^o + 20^o) = sin 180^o*cos20^o + sin 20^o*cos 180^o
Plugging sin 180^o = 0 and cos180^o = -1 in the formula yields:
sin 200^o = - sin 20^o = -k''
Step-by-step explanation:
''Given sin 20°=k express the following in terms of k a) sin 200° b) cos 20° c) tan(-20°) d) sin 70° Related to trigonometry.'' https://www.enotes.com/homework-help/given-sin-20-k-express-following-terms-k-sin-200-b-307263 hope this helps
i have no one to talk to
Answer:
Hiiiiiii :)
Step-by-step explanation:
Determine the quadratic curve of best fit for the data. Then estimate what the value of will be when = −4. {(−3,2), (0,5), (1,7.3), (−1,3.3), (−6,5), (−7,7.3)} Answer choices 4.3 5.3 3.3 2.3
Answer:
The value of 'y' when x = -4 is 2.3
Step-by-step explanation:
Curve of best fit can be found by plotting the points on MS Excel and drawing a curve that goes through the points as shown in the attached graph
The equation that approximate the curve from which the y-value at a x-value of -4 can be estimated is found as follows
The general equation for a quadratic equation is y = a·x² + b·x + c
Therefore, we get;
2 = a·(-3)² + b·(-3) + c
2 = 9·a - 3·b + c
5 = 0·a + 0·b + c
5 = c
7.3 = 1·a + 1·b + c = a + b + 5
7.3 = a + b + 5
2.3 = a + b
2 = 9·a - 3·b + 5
-3 = 9·a - 3·b
Solving gives;
a = 13/40, b = 79/40
The equation of the quadratic curve is therefore;
y = (13/40)·x² + (79/40)·x + 5
When x = -4, we get;
y = (13/40)·(-4)² + (79/40)·(-4) + 5 = 2.3
When x = -4, y = 2.3
Plotting the points on MS Excel we find from the attached graph that the estimated value of 'y' when x = -4 is as calculated (2.3).
PLS HELP I WILL MARK BRAINLIEST!!
You want to take some of your friends to see a movie Movie tickets cost $9 at the local theatre. You will purchase a bucket of popcorn for $7.50. How many friends can you take if you spend at most $79.50. Write the inequality and solve it.
Answer: 8 friends
Step-by-step explanation: 79.5-7.50 72
72/9 8
On Saturday, a local hamburger shop sold a combined total of 540 hamburgers and cheeseburgers. The number of
cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Saturday?
hamburgers
Answer: 135 hamburgers
540 divided by 4 (ratio of hamburgers to cheeseburgers is 3 to 1) = 135. 135 burgers and (135 times 3) 405 cheeseburgers = 540.
Step-by-step explanation: Hope this helps! :)
Answer: 180 hamburgers were sold on Saturday
Step-by-step explanation:
I’m pretty sure this is the answer
help m.e please please
Answer:
(-3, -4)
Step-by-step explanation:
The solution is where the two lines intersect. Therefore, the x-coordinate is -3, and the y-coordinate is -4.
Another way to solve this would be to set the to equations equal to each other, so 2x+2 = -4. Therefore, 2x = -6, and x = -3. And from the second equation, y = -4.
Sarah’s weekly pay is increasing from $525 per week to $600 per week. which of the following is closest to the percent Sarah’s pay is going up?
1)8.3%
2)10.4%
3)12.5%
4)14.3%
PLEASE HELP ASAP!!!!!!! I DONT HAVE MUCH TIME! 15 POINTS❗️
Answer:
negative slope, y= -x+2
Step-by-step explanation:
PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEE HELPPPPPPPPPPPP
Answer:
L=74
W=77
Step-by-step explanation:
Answer:
L=74 and W=77
Step-by-step explanation:
first the area of a rectangle is length of breath
A=L X W
4514= L X 61
61L=4514
L=4514/61
L=74m
b. perimeter =2(L + W)
338=2*92+ 2W
338=184+2W
2W=338-184
2W=154
W=154/2
W=74
What is the volume of a sphere having a diameter of 6 cm?
Can someone please help me on this I beg you please
Answer:
b
Step-by-step explanation:
b
3x + y + 2x + 2y – 3
Simplify Expressions by Combining Like Terms
Find the probability of rolling a 5 or greater on the first die and a 2 or greater on the second die
Answer:
The probability is 1/9
Step-by-step explanation:
The probability of rolling a 5 the first time is 1/6
The probability of rolling a number greater than 2
Numbers greater than 2 are 3, 4, 5, 6
So the probability of rolling a number out of these four is 4/6
So the probability of rolling a five for the first time and the probability of rolling a number greater than 2 the second time will be
1/6 * 4/6 = 4/36 = 1/9
Answer:
1/3, 5/6, and 5/18.
Step-by-step explanation:
If a die has 6 sides, then because there are 2 sides equal or greater than 5 (5 and 6), then there is a 2/6 or 1/3 chance of rolling the first die. On the second roll, there are 4 sides equal or greater than 5 (2, 3, 4, 5, and 6), so there is a 5/6 chance of rolling it. To find the probability of both happening, multiply 1/3 by 5/6 to get 5/18.
Use the graph to write a linear function that relates y to x
Y=
Each year, roughly 100 computer programmers each make about $
105. How much money is this all together? Express your answer both
as a power of 10 and as a dollar amount.
i don’t understand how to solve this
You go to Kohl's to purchase retro jordan shoes for $74.99. Kohl's is offering in-store discount at 30%. You Kohl's dollar coupon for another 20% off. What is the price of the shoes before tax?
Answer:
41.99
Step-by-step explanation:
74.99*(100%-30%)
52.493
52.493(100%-20%)
41.99
11. Angela is using several cones to decorate for a party. The cones she has
chosen are 8 inches tall and have a radius of 3 inches. What is the volume of
one of the cones to the nearest whole cubic inch?
Answer:
[tex]75.4 in^3[/tex]
Step-by-step explanation:
First start with your cone volume equation which is
[tex]V=\pi r^2\frac{h}{3}[/tex]
Now plug in what you know
r=3
h=8
[tex]V=\pi (3)^2(\frac{8}{3})[/tex]
put in calculator and get
[tex]75.4 in^3[/tex]
Expressions equivalent to 3^10
Answer:
59049+0
59048.1+0.9
59048.01+0.99
...
Step-by-step explanation:
There's infinite.
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{3^{10}}[/tex]
[tex]\mathsf{= 3\times 3\times3\times 3 \times 3\times 3\times3\times3\times3\times3 }[/tex]
[tex]\mathsf{3\times3 = \bf 9}[/tex]
[tex]= 9\times9\times 9\times 9\times9[/tex]
[tex]\mathsf{9\times9 = \bf 81}[/tex]
[tex]\mathsf{= 81\times81\times 9}[/tex]
[tex]\mathsf{81 \times 81 = \bf 6,561}[/tex]
[tex]\mathsf{= 6,561\times9}[/tex]
[tex]\mathsf{\bf = 59, 049}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \huge \bf 59,049}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
An eighth grade class was divided into two groups to go to the state fair. The students in the first group bought 9 food tickets and 14 ride tickets for $66.50 total. The students in the second group bought 18 food tickets and 14 ride tickets for $98.00 total. What was the cost of each food ticket and each ride ticket.
Answer: HOW AM I SUPPOSED TO KNOW?!
Step-by-step explanation:
Which of these is a simplified form of the equation 15x + 4 = 5 + 3x + 1x? (2 points)
0 3x = 9
0 3x = 11
O 11x = 9
0 11x = 1
Answer:
11x=1
Step-by-step explanation:
15x+4=5+3x+1x Bring everything with an x in front of it to the left side
15x-3x-1x+4=5 Simplify the x values
11x+4=5 Bring the 4 to the right side
11x=5-4
11x=1
Solve by graphing -3x + y = 4 y = -2x - 1
Answer:
(-1,1)
Step-by-step explanation:
Solve: 16х2 - 81 = 0. (2 points)
Ox = 4, 9
Ox= -4, -9
ООО
9
х=
О
х
81
16
16
HELP PLEASEEE
Answer:
x=9/4,x=-9/4
Step-by-step explanation:
16x^2−81=0
Step 1: Add 81 to both sides.
16x^2−81+81=0+81
16x^2=81
Step 2: Divide both sides by 16.
16x^2/16 = 81/16
x^2 = 81/16
Step 3: Take square root.
x = ±√81/16
x=2.25,x=−2.25
Convert to fraction form.
x=9/4,x=-9/4
Leslie has a watering can that holds 1 liter of water. She uses 250 milliliters of water on each of her plants. How many plants can she water? *remember 1L = 1000 milliliters of water
Answer:
4 plants
Step-by-step explanation:
convert the capacity of the watering can to millimeters
1L = 1000 milliliters
1 x 1000 = 1000 millimeters
Plants that can be watered = capacity of the watering can / amount of water a plant needs
1000 / 250 = 4 plants
I need help plz plspdlspslslsl 7.2 x 7.2 x 7.2 x 7.2 x 7.2 x 7.2
Answer:
Step-by-step explanation:
7.2^6
Answer:
[tex]7.2^{6}[/tex]
Step-by-step explanation:
The answer is [tex]7.2^{6}[/tex] because your multiplying 7.2 6 times.
Hope this helps!
help pls geometry volume
You spin the spinner once. What is P(divisor of 30)?
Answer:
ayo- do you mean by this equation that im also stuck on qwq
Step-by-step explanation:
NO LINKS PLEASE what is y? (please explain the steps too :))
y=3(19)-5 y=2(19)+14
Answer:
solution given:
y=3(19)-5=57-5=52
y=2(19)+14=2×19+14=38+14=52
:.
y=52
Answer:
y = 52
Step-by-step explanation:
Order of operation says we must multiply before you subtract or add.
So 3 * 19 = 57 then subtract 5 you get 52.
Next 2 * 19 = 38 then 38 + 14 = 52