Answer:
$548.9
Step-by-step explanation:
$499 x (1+10%) = $ 548.9
Help with math pls it's my last thing for today
Answer:
Standard Form:
325,789
Expanded forms can be written like a sentence or stacked for readability as they are here.
Expanded Notation Form:
325,789 =
300,000
+ 20,000
+ 5,000
+ 700
+ 80
+ 9
Expanded Factors Form:
325,789 =
3 × 100,000
+ 2 × 10,000
+ 5 × 1,000
+ 7 × 100
+ 8 × 10
+ 9 × 1
Expanded Exponential Form:
325,789 =
3 × 105
+ 2 × 104
+ 5 × 103
+ 7 × 102
+ 8 × 101
+ 9 × 100
Word Form:
325,789 =
three hundred twenty-five thousand seven hundred eighty-nine
Chemists use pH as a measure of acidity or alkalinity of a solution. It uses the concentration of hydrogen ions H+ in a logarithmic function. A chemist is studying the alkalinity of a hot spring near a volcano. The hydrogen ion concentration is increasing according to the function f(d) = (0.5 × 10–4)d, where d is the number of days. The function for pH is g(H+) = –log10(H+), where H+ is the hydrogen ion concentration of the solution. Which function shows the pH of the hot spring as a function of d? g(f(d)) = –log10(d) g(f(d)) = –d(log10(0.5 × 10–4)) g(f(d)) = –log10((0.5 × 10–4)d) g(f(d)) = –log10(d × 10–4)
Answer:
[tex]g(f(d)) = -dlog_{10}(0.5 * 10^{-4})[/tex]
Step-by-step explanation:
Given
[tex]f(d) = (0.5 * 10^{-4})^d[/tex]
[tex]g(H+) = -log_{10}(H+)[/tex]
Required
Find the composite function g(f(d))
We have:
[tex]g(H+) = -log_{10}(H+)[/tex]
Substitute f(d) for H+
[tex]g(f(d)) = -log_{10}(f(d))[/tex]
Substitute [tex]f(d) = (0.5 * 10^{-4})^d[/tex]
[tex]g(f(d)) = -log_{10}((0.5 * 10^{-4})^d)[/tex]
Apply law of logarithm
[tex]g(f(d)) = -dlog_{10}(0.5 * 10^{-4})[/tex]
Hence, the function is:
[tex]g(f(d)) = -dlog_{10}(0.5 * 10^{-4})[/tex]
Answer:
It's C
Step-by-step explanation:
Help with 8 pls thanks
Answer:
m<Y = 68°
Step-by-step explanation:
A tangent drawn to a circle makes a 90° angle with the radius that intersects it at the point of tangency. That means that m<X = 90°.
The sum of the measures of the angles of a triangle is 180°.
m<X + m<Y + m<Z = 180
90 + m<Y + 22 = 180
m<Y + 112 = 180
m<Y = 180 - 112
m<Y = 68
A triangle has two sides of length 7 and 4. What is the smallest possible whole-number length for the third sid
Answer:
3......
Step-by-step explanation:
in triangle sum of two sides must be equal to third side......
hope this will help u.....
If the exponential model f(x)=9(13)x is written with the base e, it will take the form A0ekx. What is A0 and what is k?
9 × 13ˣ = 9 × exp(ln(13ˣ ))
… = 9 × exp(x ln(13))
… = A₀ × exp(kx)
so that
A₀ = 9
k = ln(13)
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale.
Answer:
x = 7[tex]\sqrt{2}[/tex] and y = 7
Step-by-step explanation:
Since this is 45 45 90 triangle, each leg is the same length so y = 7 too and x is always [tex]a\sqrt{2}[/tex] so x = 7[tex]\sqrt{2}[/tex]
The values of [tex]x[/tex] and [tex]y[/tex] are required.
The required values are
[tex]x=9.9\ \text{units}[/tex]
[tex]y=7\ \text{units}[/tex]
The given triangle is a right angled triangle.
Two given angles are [tex]90^{\circ}[/tex] and [tex]45^{\circ}[/tex]
The sum of the angles is [tex]180^{\circ}[/tex]
The missing angle is
[tex]180-(90+45)=45^{\circ}[/tex]
Since, the two angles are equal the side opposite the angles will also be equal.
So,
[tex]y=7[/tex]
Applying the Pythagoras theorem.
[tex]7^2+7^2=x^2\\\Rightarrow x=\sqrt{7^2+7^2}\\\Rightarrow x\approx 9.9[/tex]
Learn more:
https://brainly.com/question/17307037?referrer=searchResults
Juicy's business Sweet Sauce is profiting at a rate 20,000 dollars per month. The starting balance in Sweet Sauce's account for 2020 was $50,000. How much money will be in Sweet Sauce's account after July 31st? Write an equation for this problem and answer the question. How much money will be in the account after 2 years?
Answer:
-The equation for this problem is:
y=50,000+20,000x
-The money in Sweet Sauce's account after July 31st is $190,000
-The money in the account after 2 years is $530,000.
Step-by-step explanation:
With the information provided, you can say that the money in the account would be equal to adding up the starting balance plus the profit per month for the number of months that have passed, which is:
y=50,000+20,000x, where:
y is the money in the account
x is the number of months that have passed
Now, to find the amount of money in the account after July 31st, you have to consider that this is the 7th month and you have to replace x with 7:
y=50,000+(20,000*7)
y=50,000+140,000
y=190,000
Also, to find the amount the amount of money in the account after 2 years, you have to consider that 2 years is equal to 24 months:
y=50,000+(20,000*24)
y=50,000+480,000
y=530,000
Is (a + b) and (a - b)? perfect square trinomials?
O True
O False
Answer:
False
Step-by-step explanation:
Pos and negs cannot be perfect square trinomials
plsss help i’ll give brainliest if you give a correct answer
Answer: x = 7
Explanation:
Subtract 8 from both sides to isolate x.
x + 8 = 15
x + 8 -8 = 15 - 8
x = 15 - 8
x = 7
Answer:
X=7
Step-by-step explanation:
have a good day /night
At the music store Katelyn bought 2 packs of
guitar strings and a music book. The book cost
$18.00. Her total purchase was $46.00. How
much is one pack of strings?
hii please help i’ll give brainliest!!
Joseph has only nickels and quarters in his piggy bank. He has 62 coins total for a
combined value of $11.10. How many nickels does Joseph have?
9514 1404 393
Answer:
22 nickels
Step-by-step explanation:
Let n represent the number of nickels in Joseph's piggy bank. Then the number of quarters is 62-n. The total value is ...
0.05n + 0.25(62 -n) = 11.10
-0.20n + 15.50 = 11.10 . . . simplify
4.40 = 0.20n . . . . . . . . . . add 0.20n-11.10
4.40/0.20 = n = 22
Joseph has 22 nickels in his piggy bank.
HI, I NEED THIS QUESTION TO BE ANSWER ASAP! HELP PLEASE!!
HERE IS THE QUESTION!
What fraction with a denominator of 8 is equivalent to 1/2?
HELP!! IF YOU DO IT ILL GIVE YOU BRAINLY WITH THE EXPLANATION!
Answer:
4/8
Step-by-step explanation:
4/8 is equal to 1/2
-
4 is half of 8
The blue bookcase below was transformed into the brown bookcase. Identify the transformations that took place.
A) rotated 90° clockwise, enlarged using a scale factor of 3
B) rotated 90° clockwise, reduced using a scale factor of 1/3
C) rotated 180° clockwise, enlarged using a scale factor of 3
D) rotated 180° clockwise, reduced using a scale factor of 1/3
Answer:
choice C, rotated 180° & enlarged
Step-by-step explanation:
What is 3,000 divided by 250?
Answer: 12 100% right
Step-by-step explanation:
The value of solution of 3,000 divided by 250 is,
⇒ 12
We have to given that;
⇒ 3,000 divided by 250
Now, WE can divide as;
⇒ 3,000 divided by 250
⇒ 3,000 / 250
⇒ 12
Thus, The value of solution of 3,000 divided by 250 is,
⇒ 12
Learn more about the divide visit:
https://brainly.com/question/28119824
#SPJ6
Solve the inequality a+4/2>16
Answer:
a > 14
Step-by-step explanation:
I hope this helps!
The solution to the inequality expression a + 4/2 > 16 is a > 14
How to solve the inequality expression?The inequality expression is given as:
a + 4/2 > 16
Divide 4 by 2
a + 2 > 16
Subtract 2 from both sides
a > 14
Hence, the solution to the inequality expression a + 4/2 > 16 is a > 14
Read more about inequality at:
https://brainly.com/question/25275758
#SPJ2
HELP MEEEEEE (no links)
Answer:
..............................
Please help me please I’m begging you , no wrong answers
Owen is going to an amusement park. The price of admission into the park is $40, and once he is inside the park, he will have to pay $2 for every ride he rides on. How much money would Owen have to pay in total if he goes on 7 rides? How much would he have to pay if he goes on rr rides? PLEASE
Answer:
He will pay $14 to go on 7 rides with admission he will pay a total of $54.
Step-by-step explanation:
Admission-40
One ride-2
40+(2x7)=54
Students recorded the amount of liquid in fluid ounces each of them drank in one day. The box plot shows the summary of the results. Which statement best describes the data represented in the box plot?
Which statement best describes the data represented in the box plot?
Half the students drank from 78 to 114 fluid ounces.
The greatest number of students drank from 30 to 78 fluid ounces.
The data represent 78 student responses.
The mean number of fluid ounces that the students drank is 78.
Answer:
the data represent 78 students reponses
Answer:
the data represent 78 students reponses
Step-by-step explanation:
[tex] {x}^{2} - 6x - 12[/tex]
ANSWER QUICK WILL GIVE 30 POINTS AND BRAINLESTT!!!!
Answer:
I got you bro so the sales tax is $0.80 and the total cost is $10.80
Answer:
Sales tax = $0.8Total cost = $10.8Step-by-step explanation:
Now we have to,
→ find sales tax and total cost.
The sales tax will be,
→ 8% of $10.00
→ (10/100) × 8
→ 80/100
→ $0.8
Now the total cost will be,
→ $10 + sales tax
→ 10 + 0.8
→ $10.8
Hence, total cost is $10.8.
help please asap!!!!only the correct answet please
Answer:
B
Step-by-step explanation:
The set of even numbers that can be be divided by 3 is
a number is divisible by 3 if the sum of its digits is divisible by 3. 375, for instance, is divisible by 3 since sum of its digits (3+7+5) is 15. And 15 is divisible by 3. 1+2=3 and 3 is divisible by 3
Answer:
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, ect
Step-by-step explanation:
keep adding 3+3, then 3+6 and so on, then when you go as far as you want, look back at all the even numbers
Andrew salary is 4,250.00 per month plus a commission of 5%of his monthly sales.Andrew sales this month are 10,250.00. What is his total income for thins month?
Answer:
Andrew's total income for this month is $4762.5.
Step-by-step explanation:
With the information provided, you can find the total income by calculating 5% of the sales this month and adding up this amount to his monthly salary:
sales=10,250
monthly salary=4,250
10,250*5%=512.5
4,250+512.5=4,762.5
According to this, the answer is that Andrew's total income for this month is $4,762.5.
Nathaniel goes to a store an buys an item that costs xx dollars. He has a coupon for 40% off, and then a 7% tax is added to the discounted price. Write an expression in terms of xx that represents the total amount that Nathaniel paid at the register.
Answer: He pays x*0.642
Step-by-step explanation:
Suppose that we have an object with an initial price P.
If we have a discount of X%, then the new price will be:
NP = P*(1 - X%/100%)
And if we have an increase of X%, the new price is:
NP = P*(1 + X%/100%)
In this case, we have an initial item that costs x dollars, first we have a coupon for 40% off, then we have a discount of 40%.
Then the new price is:
NP = x*(1 - 40%/100%) = x*(1 - 0.4) = x*0.6
Now we add a tax of the 7%, then the final price will be:
FP = (x*0.6)*(1 + 7%/100%) = (x*0.6)*(1 + 0.07) = x*(0.6*1.07) = x*0.642
This is the total amount he pays at the register.
I NEED HELP
the witch has more sugar per fluid ounce
A- 12sugar and 8amount
B-10 sugar and 5 Amount
Help! The screenshot is down below!!
Answer:
Step-by-step explanation:
A) Find the total minutes that Anna walked.To find the average number of minutes, divide the total minutes by total number of days
B) Average number of minutes =
[tex]\frac{15*9 + 30*5 + 40*7 + 45*3 + 50*6}{30}\\\\= \frac{135 + 150 + 280 + 135 + 300}{30}\\\\=\frac{1000}{30}\\\\= 33. 33[/tex]
The pages of a book are numbered consecutively, beginning with 1. The digit 7 is printed 25 times in numbering the pages. What is the largest number of pages the book can have?
Answer:7
Step-by-step explanation:
Please help me out. I will be picking the brainiest Answer!!!
Answer:
72 M
Step-by-step explanation:
You have to multiply 12 by 6,and to make it easier,you can draw a multiplication chart type thing,where once you drew all of the lines,it would make squares.Count all the squares and that's your answer.