Step-by-step explanation:
ab = (x - 3)(x + 3)
multiply
ab = x² + 3x - 3x - 9
Simplify
ab = x² - 9
---------------------------
2ab = 2(x² - 9)
Distribute
2ab = 2x² - 18
HELP ASAP FOR 100 POINTS
Answer:
C
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
you are correct already
There are 24 girls in a class. The ratio of girls to boys is 3:8.
How many boys are in the class?
Answer:
64 boys.
Step-by-step explanation:
There are 3 girls for every 8 boys.
24/3 = 8
8 * 8 = 64
The number of boys will be [tex]64[/tex] .
What is ratio ?Ratio is the comparison of two numbers i.e. how much a number contains other.
We have,
Number of girls [tex]=24[/tex]
Ratio of girls to boys [tex]=\ 3:8[/tex]
So,
According to the question,
Let number of girls [tex]=3x[/tex]
Number of boys [tex]=8x[/tex]
And,
We have number of girls so compare them,
i.e. [tex]3x=24[/tex]
⇒[tex]x= 8[/tex]
So, now putting value of [tex]x[/tex] in Number of boys,
i.e.
Number of boys [tex]=8x[/tex]
[tex]=8*8[/tex]
Number of boys [tex]=64[/tex]
Hence, we can say that the number of boys will be [tex]64[/tex] .
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What is 615.75 rounded to the nearest hundredth?
Answer:
615.75
Step-by-step explanation:
PLEASE H LP ME WITH THIS AND SHE WANTS US TO SHOW WORK AND I NEED THE ANSWER AND THE WORK
ok lets convert first
1/2=0.5
Then divide
2/0.5=4
so now we multiply 50 with 4
50*4=200
The answer would be D
D, 200 miles
help me with these QUESTIONS
Answer:
1. no solution
2. x = -6, 6
3. 0
4.x = -3, 3
5. 0
6.x = -4, 4
Step-by-step explanation:
= I'm not sure if right though
HELP PLEASE
Find the outlier of the set of data: 20, 23, 19, 25, 4, 18, 26
Outlier can be defined as
The outlier of the dataset 20, 23, 19, 25, 4, 18, 26 is 4
How to determine the outlier?The set of data is given as:
20, 23, 19, 25, 4, 18, 26
The outlier of the set of data is a data element that is relatively far from other data elements
In 20, 23, 19, 25, 4, 18, 26, the number 4 is relatively far from other data elements
This means that 4 is an outlier of the dataset
Hence, the outlier of the dataset 20, 23, 19, 25, 4, 18, 26 is 4
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Samantha is saving to buy a new car. She already has $2500 in the bank. She is saving $400 per month. What is the minimum number of months that she will need to save to buy a car that costs $7000.
Answer: She will need the minimum of 12 months
7000-2500= 4500
4500/2=11.25
11.25 rounded up is 12
(08.06 MC)
Mike and his friends bought cheese wafers for $2 per packet and chocolate wafers for $1 per packet at a carnival. They spent a total of $25 to buy a total of 20 packets of wafers of the two varieties.
Part A: Write a system of equations that can be solved to find the number of packets of cheese wafers and the number of packets of chocolate wafers that Mike and his friends bought at the carnival. Define the variables used in the equations. (5 points)
Part B: How many packets of chocolate wafers and cheese wafers did they buy? Explain how you got the answer and why you selected a particular method to get the answer. (5 points)
someone please actually explain this to me. maybe even use real words this time?! this is my last assignment for the year and here I am, wet keyboard from tears, breaking my pencil into tiny bits because of this one algebra question. if I get a bad score on this quiz i'm actually going to have a full-on meltdown! someone for the love of god explain this to me in a way that my adhd brain will understand before I throw myself into the sun. much thanks! :,)
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Answer:
(-t)^5
Explanation:
There are five t’s
Answer:
(-t)^5
Step-by-step explanation:
Solve (1/5)^x+3 = 125^2x-36 for x without using logarithms.
Answer:
15
Step-by-step explanation:
As part of her art project, Sarah is painting 2 square
pyramids. The first pyramid has a base with a length of 6
cm and lateral faces with heights of 8.5 cm. The second
pyramid has a base that is half the length of the first
pyramid, and each lateral face has a height of 8.5 cm. What
is the surface area of the second pyramid?
Answer:
25.5
Step-by-step explanation:
first pyramid: 6*8.5
second pyramid: 3 (half the length of the first) *8.5
3*8.5 = 25.5
Answer:
25.5
Step-by-step explanation:
There are multiple squares you need to find the area of each one by finding the area of each square then adding them together to get the surface area.
What is 49+14? (Equivalent Expressions)
Answer:
63
BRAINLIST
BRAINLIST
After adding, the value of expression is,
⇒ 49 + 14 = 63
We have to given that,
An expression is,
⇒ 49 + 14
Since, The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.
Now, We can simplify as,
⇒ 49 + 14
Adding,
⇒ 63
Thus, After adding, the value of expression is,
⇒ 49 + 14 = 63
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e/3=7. please can some one help
Answer:
e=21
Step-by-step explanation:
Answer:
E = 7 * 3 = 21
21 / 3 = 7
Step-by-step explanation:
how do you find mean...
Answer:
It’s the middle number of the group
Step-by-step explanation:
Solve the equation for x:
Answer:
A. x = 10
Step-by-step explanation:
-5x + 20 = -30
Subtract 20 from both sides
-5x = -50
Divide both sides by -5
x = 10
Answer:
A. x = 10
Step-by-step explanation:
- 5x + 20 = - 30
- 5x = - 30 - 20
- 5x = - 50
5x = 50
x = 50 / 5
x = 10
1/2 x ( 6 x 4 ) divided by (3 + 2)
Answer:
Step-by-step explanation:
[tex]\frac{\frac{1}{2} *(6*4)}{3+2}\\\\\frac{12}{5} \\\\2.4 = 2\frac{2}{5}[/tex]
Jack earn money walking dogs he charges $8 per day plus $6 per walk (w)
Answer:
14
Step-by-step explanation:
8 + 6 = 14
Answer:
Step-by-step explanation:
so if he get $8 per day + 6 per walk {w}
so 8 + 6w = 14 change the + into - and change the 8 into -8 and
put it on both side 14 - 8 is 6
then you have to put 6w = 6 then
6/6 is 1 so w = 1 i don't know if i got it right so i am so sorry if it wrong
You want to rent a television. Company A charges $25 per week plus a one-time fee of $52. Company B charges $37 per week plus a one-time fee of $16. After how many weeks are the total costs the same at both companies?
Answer:
3 weeks
Step-by-step explanation:
Set the number of weeks when they are equal as x.
We can then write these equations.
25x + 52 = 37x + 16
Subtract 25x from both sides.
52 = 12x + 16
Subtract 16 from both sides.
36 = 12x
Divide both sides by 12
x = 3
The answer is 3 weeks.
the glass gauge on a cylindrical coffee maker shows there are 45 cups left when the coffee maker is 36% full. How many cups of coffee does it hold when its full?
Answer:
125 cups
Step-by-step explanation:
45 is 36% of what number?
45 = 0.36n
n = 45 / 0.36
n = 125
Angle CED is 80 degrees adjacent to CEB and is a complementary angle
Angle CED is 100 degrees adjacent to CEB and they are supplementary angle
Angle CED is 90 degrees adjacent to CEB and is a supplementary angle
Angle CED is 50 degrees adjacent to CEB and is a complementary angle
Answer:
sorry I did this stuff before but don´t remember it
Step-by-step explanation:
Can someone please explain Conditional probability to me
Answer:
conditional probability is probability based on logic and past events instead of your current data which you got from whichever experiment you did (that is experimental probability)
Step-by-step explanation:
11 Which of these situations cannot be represented by the number -10? A A loss of 10 yards. B) A withdrawal of $10. c) 10 degrees below zero. D) Gaining 10 points. Г
Answer:
D
Step-by-step explanation:
Gaining 10 points would be +10
Which is the simplified form of n^-6p^3
Helpity help??????????????????????????????
what is 3(4j + 6 + 5j) as a verbal expression. please please please help
Answer:
[tex]3(4j + 6 + 5j)[/tex] as a verbal expression would be three multiplied by the sum of four j, six, and five j.
Step-by-step explanation:
Since three is multiplying the values in the parenthesis, which is a sum of 4j, 6, and 5j, that means the verbal expression of this expression would be three multiplied by the sum of four j, six, and five j.
Sofia bought 3 items that cost a total of $21.99. What is the price of one item?
Answer: The price of one item is $7.33
Step-by-step explanation:
I*3=21.99
i=7.33
here is my question please anwser as soon as possible !!!!!!!
Answer:
is it asking which one is a y coordinate?
Answer:
Q'(5, -3), R'(4, -1), S'(0, -2), T'(0, -5)
Step-by-step explanation:
Reflecting across the y-axis causes the x coordinate of a point to change to its opposite. So in terms of x and y: (x, y) ⇒ (-x, y)
Q(-5, -3) ⇒ Q'(5, -3)
R(-4, -1) ⇒ R'(4, -1)
S(0, -2) ⇒ S'(0, -2)
T(0, -5) ⇒ T'(0, -5)
can someone please please please answer this :(
i really need this right now so please :(
yesterday was the deadline I'm late :(
The following function represents the value of a truck, in dollars, after x years:
f(x) = 29,000(0.88)x
What does 0.88 represent?
The decrease in the value of the truck, which is 12%
The present value of the truck
The value of the truck after x years
The decrease in the value of the truck, which is 88%
Answer:
The increase in the value of the truck, which is 88%
Step-by-step explanation:
Depreciation can be defined as the reduction of cost of a fixed asset systematically until the value of the asset becomes zero.
Rate of return can be defined as the percentage of interest or dividends earned on money that is invested.
In Financial accounting, a return refers to the amount of profit generated by an investor on an investment over a specific period of time.
Basically, the rate of return which is typically expressed as a percentage of the initial costs of an investment can either be a gain or a loss on an investment. Therefore, a positive rate of return on an investment over a specific period of time, simply means that an investor is making a profit (gains) while a negative rate of return on an investment over a specific period of time, indicates that the investor is running at a loss.
Given the following function;
f(x) = 29,000(0.88)x
Where;
x is the number of years.
We can deduce from the function, that the rate at which the truck is appreciating is 88% (0.88).
Assuming x = 3
f(3) = 29,000(0.88)*3
f(3) = $76,560
Answer:
The decrease in the value of the truck, which is 12%
Step-by-step explanation:
If the decrease in the value of the truck was 88%, then the percentage would be 0.12. So therefore, since 1.00 - 0.12 is 0.88, the decrease in the value of the truck would be 12%.
How big of an electric field exists when an electric force of 2 Newtons is exerted on a charge of 1.602 x 10^-19 Coulombs? *
Answer:
The electric field experienced by the charge is 1.248 x 10¹⁹ N/C
Step-by-step explanation:
Given;
the magnitude of the force, F = 2 N
the magnitude of the charge, q = 1.602 x 10⁻¹⁹ C
The electric field experienced by the charge is calculated as follows;
[tex]E = \frac{F}{q} \\\\E = \frac{2}{1.602 \times 10^{-19} \ } \\\\E = 1.248 \times 10^{19} \ N/C[/tex]
Therefore, the electric field experienced by the charge is 1.248 x 10¹⁹ N/C.