Answer:
The number expressed in the models below is 0.63 (six tenths and three hundredths)
Step-by-step explanation:
It is represented as follows:
One flat represents 1 whole, so there are 0 whole numbers
One rod represents 1 tenth, so there are 6 tenths (represented by 6 rods)
One unit represents 1 hundredth, so there are 3 hundredths (represented by 3 units)
3. Create an expression that has a value greater than 6x – 4 when x =
–5/2
4. Create an expression that has a value less than 2 – 5x when x =
-3/4
please someone help me with this math 12.02
Please answer Questions 12-18! Please show work and explanations because I was absent in class and I have NO IDEA how to do this! If you are right, I will award you 60 points!! PLS HELP!!
Answer:
12) v=0
13) w=9
14) y=5
15) z=-8
16) n=2, m=-2
17) x=3
18) 1, because [tex]2^{4}/{2^{4} =1[/tex]. Therefore [tex]2^{4}/{2^{4} = 2^{4-4}=2^{0}=1[/tex]
Step-by-step explanation:
12) Exponent Zero rule. Anything raise to 0 power equals 1.
13) Exponent Negative rule: [tex]b^{-n} =\frac{1}{b^n}[/tex]
14) Exponent Quotient rule: [tex](a^n/a^m)=a^{n-m}[/tex]
In this case, [tex](3^3/3^5)=3^{3-5}=3^{-2}=1/3^2=1/9[/tex]
15) Exponent Product rule: [tex](a^n*a^m)=a^{n+m}[/tex]
In this case, [tex](5^8*5^{-8})=5^{8-8}=5^0=1[/tex]
16) Same rule as #15, [tex](7^2*7^{-2})=7^{2-2}=7^0=1[/tex]
17)We can work backwards here, we know [tex]2^{2} = 4[/tex] and [tex]3^{1} =3[/tex], so we need [tex]2^2/3^1=4/3[/tex].
To achieve this, use Exponent Quotient rule, what x-4=1? x=5.
Similar base: [tex](3^5/3^4)=3^{5-4}=3^{1}=1/3[/tex]. Put [tex]2^{2}[/tex] back for [tex]\frac{4}{3}[/tex]
18) 1*1*1*1=1. Anything raise to 0 power equals 1 (Exponent Zero rule). To prove this, any number(except 0) divided by itself equals 1.
Ex: 1/1=1, 4/4=1, [tex]2^4/2^4=1[/tex].
We can prove this with the Exponent Quotient rule. [tex]1=\frac{3}{3} =\frac{3^1}{3^1}=3^{1-1}=3^0=1[/tex]. No matter how I write it, it's equal to 1.
The one exception is [tex]0^{0}[/tex], which is undefined, since dividing by zero is illegal.
Hope this helps. ;)
Answer:
12) v=0
13) w=9
14) y=5
15) z=-8
16) n=2, m=-2
17) x=3
18) 1, because . Therefore
Step-by-step explanation:
12) Exponent Zero rule. Anything raise to 0 power equals 1.
13) Exponent Negative rule:
14) Exponent Quotient rule:
In this case,
15) Exponent Product rule:
In this case,
16) Same rule as #15,
17)We can work backwards here, we know and , so we need .
To achieve this, use Exponent Quotient rule, what x-4=1? x=5.
Similar base: . Put back for
18) 1*1*1*1=1. Anything raise to 0 power equals 1 (Exponent Zero rule). To prove this, any number(except 0) divided by itself equals 1.
Ex: 1/1=1, 4/4=1, .
We can prove this with the Exponent Quotient rule. . No matter how I write it, it's equal to 1.
Using a standard deck of cards, a gamer drew one card and recorded its value. They continued this for a total of 100 draws. The table shows the frequency of each card drawn.
Card A 2 3 4 5 6 7 8 9 10 J Q K
Frequency 4 7 5 6 7 6 8 10 7 10 8 12 10
Based on the table, what is the experimental probability that the card selected was a J, Q, or K?
A: one half
B: one third
C: 3 over 10
D: 3 over 13
Answer: its c i just took the flvs test
Step-by-step explanation:
The experimental probability that the card selected was a J, Q, or K is 1/3.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
Given that a gamer drew one card and recorded its value.
They continued this for a total of 100 draws.
Card A 2 3 4 5 6 7 8 9 10 J Q K
Frequency 4 7 5 6 7 6 8 10 7 10 8 12 10
The total number of cards drawn is 4+7+5+6+7+6+8+10+7+10+8+12+10 = 90.
The number of cards drawn that are either a J, Q, or K is 10+8+12 = 30.
Therefore, the experimental probability of drawing a J, Q, or K is:
30/90 = 1/3
Hence, the experimental probability that the card selected was a J, Q, or K is 1/3.
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What's the answer to b = and c =
Answer: The person who answered is correct! :)
(I was just double checking and the person is correct)
Step-by-step explanation:
Serena is trying to become more environmentally conscious by making her own cleaning products. She researches different cleaners and decides to make furniture polish using lemon juice and olive oil. She wants to make 48 ounces of the mixture.
Write an equation in standard form (ax+by=c) that relates the amount of lemon juice, x, and olive oil, y, to the total amount of mixture Serena wants to make.
Answer: 24x+24y=48
Step-by-step explanation:
ok so you want to make a equation for this problem
im going to take you in step by. ill show you the problem in short glimpse.
using lemon juice and olive oil.
ill explain this is a normal equation for a line y=mx+b but this equation is ax+by=c this means there is 2 variables in so the answer is to fill in the letters they gave us so 48/2 is 24 per cup and the total is 48.
She wants to make 48 ounces of the mixture
with the little information that they gave to us the answer is 24x+24y=48
Tyrese wants to buy 15 packs of baseball cards. They cost $5.00 per pack. There is a 25% discount before tax if 10 or more packs are purchased. Sales tax is 7%. Tyrese gives the cashier $100 to pay for his baseball cards.
How much change will he receive in return?
Answer:
$39.81
Step-by-step explanation:
$5.00 per pack
15 packs
25% discount for 10 or more packs
7% sales tax
paid $100
change?
A 25% discount means that you pay 75% of the price.
75% = 0.75
A 7% sales tax means that you pay 107% of the price.
107% = 1.07
15 × $5 × 0.75 × 1.07 = $60.19
$100 - 60.19 = $39.81
Answer: $39.81
Evaluate: 4 + 8 divided by 2 x (6-3)
A. 33
B. 18
C.16
D. 25
whats the formula for simple interest?....HELP
The formula for calculating simple interest is:
Simple Interest = (Principal x Rate x Time) / 100
Where:
Principal = the initial amount of money (the "principal sum")
Rate = the interest rate (expressed as a decimal or percentage)
Time = the length of time the interest is applied (usually in years)
It's important to note that simple interest is a method where the interest is calculated only on the original principal sum, not on any accumulated interest.
The simple interest formula is
i = P*r*t
where,
i = interestP = deposit or starting amount or loan valuer = annual interest rate in decimal formt = number of years--------------------
An example:
You borrow $500 at a simple interest rate of 2% over 3 years
P = 500r = 0.02t = 3Use those values to compute the following:
i = P*r*t
i = 500*0.02*3
i = 30
The amount of interest only is $30; meaning the total amount to pay back is $500 + $30 = $530
-What is the y-intercept of the line of best fit?
-What is the slope of the line of best fit for this scatter plot?
-What is the equation of the line of best fit?
Answer:
y-intercept : 8
slope: -1/2
equation: [tex]y = -\dfrac{1}{2}x + 8[/tex]
Step-by-step explanation:
The y-intercept is where the line crosses the y axis and you can see it crosses at y = 8 (when x =0)
Slope of the line can be found by the formula (y2-y1) / (x2-x1) where 9x1, y1) and (x2, y2) are two points on the line
Let's take the points (0, 8) and (10, 3) the two extreme points on the line
Slope = (3 - 8) / (10 - 0) = -5 / 10 = - 1/2
Equation of a line in slope intercept form is
y = mx + c
where m is the slope
b is the y intercept
The equation of the line is therefore
[tex]y = -\dfrac{1}{2}x + 8[/tex]
Answer:
Y-intercept = 8
Slope = -1/2t
Equation = y =-1/2x+8
Step-by-step explanation:
When x = 0, y = y-intercept.
Therefore, the y-intercept is 8.
We can find the slope using the formula y2-y1 / x2-x1 = m.
Let's use the points (0,8) and (4,6)
6-8 / 4-0 = m;
m = - 1/2.
Given that the generic formula is y=mx+b, and m-slop and b=y-intercept, we have:
y = -1/2x+8.
find the greatest possible decimal with 2 decimal places that is equal to 7 when rounded to the nearest whole number.
Answer:
7.49
Step-by-step explanation:
When rounding, if it is below 4 you round down, but above 5 is rounded up. Also, you look to the decimal closest to the number you are rounding. So, the greatest possible number is 7.49.
Find all solutions to the equation (x - 1)^2 = -4
Answer:
x=-3
Step-by-step explanation:
x*x-1*1=-4
x-1=-4
x-1+1=-4+1
x=-3
The plot shown below describes the relationship between students' scores on the first exam in a class and their corresponding scores on the second exam in the class.
Which of the following is the best estimate of the average change in the score on Exam
2 associated with a 1 point increase in the score of Exam 1
Answer:
1 point increasee
Step-by-step explanation:
100
PLS ANSWER QUICKLY!!!
Answer:
I think it's 77 I'm not sure get back to me on it
PLEASE HELP(PIC)
123456789
?=picture posted
Answer: 45.
Step-by-step explanation: I'm not the greatest at math but I do believe that is the answer.
Solve this for me, please
Answer:
the answer should be B
Step-by-step explanation:
using advanced methods of taking tests and doing multiple choice I've come to realization the answer is never A and if the answer is a then you are wrong. the teachers always think that you're going to guess C so the answer will never actually be C. the last answer is D and the teacher will never make the answer D because who actually uses D. therefore using this advanced process of elimination we have cut the terms that answer should be and most definitely will be totally 100% be B. Trust
The answer is : d (2,6,18,54,162)
the geometric sequence formula : a+ ar^1 +ar^2+ar^3+...........
where r= common ratio
the sequence is : 2,6,18,54,162
r = An/An-1 ( as per the formula)
r = 162/54 = 3
r = 54/18 = 3
lly common ratio =3
in the given options the only option d satisfies all the conditions of the geometric sequence
verification :
a= 2
ar^1 = 2*3 = 6
ar^2 = 2*9 =18
ar^3 = 2*27 = 54
ar^4 = 2*81 = 162
hence verified the sequence is 2,6,18,54,162
solve this Lil thing for me, please
Answer:
a=-2
b=3
Step-by-step explanation:
Solve the system of equations.
2a -5b = -19
3a + 5b = 9
Add the two equations together.
2a -5b = -19
3a + 5b = 9
------------------------
5a = -10
Divide by 5
5a/5 = -10/5
a = -2
Now we can find b
2a-5b = -19
2(-2) -5b = -19
-4 -5b = -19
Add 4 to each side
-5b = -15
Divide by -5
b = 3
a=-2
b=3
Given
2a-5b= -19 (equation1)
3a+5b = 9 (equation2)
now add both equation 1 and equation 2
2a-5b=-19
3a+5b= 9
------------------
5a = -10 (as +5b and -5b get canceled)
5a = -10
a = -2
(substitute in equation 2 or in equation 1)
3(-2)+ 5b= 9
-6 +5b =9
5b = 9+6
5b = 15
b= 3
therefore
a= -2
b= 3
verification:
2(-2)-5(3) = -19
-19 = -19
hence verified.
HELP I WILL REWARD BRANLIEST
You roll 2 dice. How likely is it that you roll a 2 and a 5?
Impossible
Unlikely
Equally Likely
Likely
Certain
Answer:
It is likely that you roll a 2 and a 5. There are 36 possible combinations when rolling two dice, and one of those combinations is a 2 and a 5. Therefore, the probability of rolling a 2 and a 5 is 1 in 36, which is considered likely.
Josh sells beaded necklaces. Each large necklace sells for $6.50 and each small necklace sells for $5.10. How much will he earn from selling large necklaces and 6 small necklaces?
pls help me with dis bro its aleks
What's the answer to a =
Answer:
a = 81
Step-by-step explanation:
109 + a = 180
a = 81
Draw a tape diagram to represent the question: What fraction of 2 1/2 is 4/5?
Answer: The left side 2.5 does not equal to the right side 0.8, which means that the given statement is false. False
Step-by-step explanation:
HELP! I'VE BEEN WORKING ON THIS QUESTION FOR A LONG TIME, BUT I CAN'T FIND THE ANSWER
Answer: y=4x-3
Step-by-step explanation:
You need to find (change in y)/(change in x) to find slope. 4/1=4. So the slope is 4. Then find the y intercept which is (0,-3). So the equation in slope intercept form is y=4x-3.
helpppppppp pleaseee fastttt
Answer: The train travels 50 miles per hour
Step-by-step explanation:
You already figured out the slope! The explanation is that the train travels 50 miles each hour.
The Slope Intercept form of the equation would be y=50x
If you substitute x with any number you can solve to see how much hours the train traveled.
So the train travels 50 miles per hour!
I hope this is what you needed help with!
PLEASE HELP ME
Which expression correctly calculates the perimeter of the shape below?
A. 400
B. 100 + 100pi
C. 200 + 50pi
D. 200 + 100pi
don't know
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
The dot plots show the heights of boys and girls at a summer camp. Heights of Boys and Girls at Camp 2 dot plots with number lines going from 40 to 60. A plot is titled Boy's Heights. There are 0 dots above 40, 1 above 41, 3 above 44, 3 above 46, 2 above 48, 3 above 50, 4 above 52, 4 above 54, and 0 above 56, 58, and 60. A plot is titled Girl's Heights. There are 0 dots above 40 and 41, 2 dots above 44, 3 above 46, 1 above 48, 3 above 50, 4 above 52, 3 above 54, 4 above 56, and 0 above 58 and 60. Which is a true statement for most of the data in each plot?
Most of the data in each plot are greater than 48.
Most of the data in each plot are less than 48.
Most of the data in each plot are around 52.
Most of the data in each plot are around 54.
Answer:
C
Step-by-step explanation:
most of data is around 52
Answer:Most of that data is around 52.
Step-by-step explanation: well i agree with the first answer but sorry if im wrong.
please helppppppppppppppppppppppp
Answer:
its c or the third one
Step-by-step explanation:
can someone help me please i will give brainlyest (there is two pics)
A: The bank is located at (4, 8)
B: The lake is located at (9, 2)
C: The deli is located at (3, 3)
D: The bakery is located at (9, 6)
Jamal is deciding what to order at the ice cream shop. He can choose a plain cone, sugar cone, chocolate cone, dish, or waffle cone, and he can have mint, vanilla, cookie dough, strawberry, or chocolate ice cream. He can have hot fudge, caramel, raspberry, or butterscotch sauce, and he can choose candy bar, nuts, cookies, chocolate chips, or gummy bears as a topping. How many different combinations can Jamal order?
Jamal can order number of different combinations is 500.
What is a combination?A combination is a selection of all or a portion of a group of items, regardless of the sequence in which the items are chosen.
Given:
Jamal is deciding what to order at the ice cream shop.
He can choose a plain cone, sugar cone, chocolate cone, dish, or waffle cone, and he can have mint, vanilla, cookie dough, strawberry, or chocolate ice cream.
The number of cone is 5.
The number of ice cream flavor is 5
He can have hot fudge, caramel, raspberry, or butterscotch sauce, and he can choose candy bar, nuts, cookies, chocolate chips, or gummy bears as a topping.
The number of different combinations,
= 5 x 5 x 4 x 5
= 500
Therefore, The number of different combinations is 500.
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please i am giving brainlyest