6.Kelly has been training to run across the country. On the first day, she ran 4 miles, the
second day, she ran 12 miles, and the third day, she ran 36 miles.
a) Write an equation that models Kelly's situation?
Answer:
D= d₁ + d₂ + d₃ : where D is total distance covered in the training.
Step-by-step explanation:
Let this equation model the total distance covered in the training.
Let the total distance covered in the training to be: -------D
Let the distance covered in 1st day be ----------d₁ = 4 miles
Let the distance covered in 2nd day be ----------d₂= 12 miles
Let the distance covered in 3rd day be ----------d₃ = 36 miles
D= d₁ + d₂ + d₃
D= 4 + 12 + 36
D= 52 miles
What do I do? I’m totally lost.
Answer:
I'm guessing keep the first image the same, have the purple bar in the second or third slot in the second image.
Step-by-step explanation:
The value of x is ___
°, and the value of y is
Answer:
y=50
x=60
Step-by-step explanation:
x= 180-(50+70)
x=60
y=50
What’s the answer! Need help with this ASAP please
Answer:
4 41 students study both chemistry and physics at random
Can anyone help me with this question please :( .
Answer:
I think it's non linear because the 1 to 1 wouldn't work
PLAES ANSWER BOTH RIGHT AWAY AND RIGHT! WILL GIVE 25 POINTS!!
Answer:
u can do it
Step-by-step explanation:
just think it thru i will be back later to see if u got it right.
what is meant by even symmetry? and odd symmetry? for polynomial functions
Answer:
1. the quality of being made up of exactly similar parts facing each other or around an axis.
2. For something to be an odd function, it has to have symmetry to the origin, not the x-axis. This means that if it has a point like (a, b), it also has the point (-a, -b). For example, y = x is an odd function because it does this.
Write an exponential function to model the following situation.
A population of 130,000 grows 3% per year for 16 years.
How much will the popluation be after 16 years?
Write an exponential function in terms of x.
y=10
Answer:
y = 130,000(1.03)ˣ
Step-by-step explanation:
The general form of an exponetial function is y = abˣ, where a is the initial value (when x = 0), and b is the multiplier (the growth or decay factor). Here, we start with a population of 130,000, so our initial value a = 130,000. A growth of 3% each year represents a growth factor of 1.03, so after x years, the population y should be y = 130,000(1.03)ˣ.
The exponential function in terms of x and y is y = 130,000(1.03)ˣ
What is an exponential function ?The exponential function is a mathematical function denoted by
y = abˣ
where a is the initial value (when x = 0)
and b is the multiplier (the growth or decay factor).
population starts from 130,000, so
Initial value a = 130,000.
A growth of 3% each year represents a growth factor of 1.03,
so after x years, the population y should be
y = 130,000(1.03)ˣ
Therefore , The exponential function in terms of x and y is y = 130,000(1.03)ˣ
To know more about exponential function
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Find the slope of the following graphs.
A. 1 / 2
B. 2
C. -2
D. - 1 / 2
Answer:
c, -2
Step-by-step explanation:
Cynthia's dad is pushing her on the swing. At her highest point, she is 6ft off of the ground. If he does not give her another push, each progressive swing will be 90% of the height of the previous swing. In the spaces provide, explain how you can find the height of the next three swings, then complete the table.
im trying to find the answer to this question to, it makes no sense to me
4 dogs have weights of 5.2 kg, 3.5 kg, 7 kg, and 9.74 kg. What is the total weight of the dogs? What is the average weight of the 4 dogs?
Answer:
25.14kg is the total weight
Step-by-step explanation:
Answer:
The total weight of the dogs is 25.44 kg
The average weight of the dogs are 25 kg
Step-by-step explanation:
It is right on Egenuity comment if you want another answer and have a good day :)
Evaluate the following expression.
1/8^2 I NEED HELPPPP!!!!!!!!
Answer:
1/64
Step-by-step explanation:
A parent purchased a dictionary for $13.50 and a pack of printer paper for $4.50. The sales tax rate was 4%. What was the total bill, including the sales tax?
Answer:
$18.72
Hope this helps :)
a sequence is given by the rule 4n -5.
what is the tenth term in the sequence?
Answer: 35
because the sequence is given by the rule 4n -5 => a(n) = 4n - 5
the tenth term in the sequence is a(10) = 4.10 - 5 = 35
Step-by-step explanation:
Evaluate the expression when b=-2 and y=4.
-y+5b
Answer:
-14
Step-by-step explanation:
-y+5b
insert the values
-4+5(-2)
multiply
-4-10
subtract
-14
Sharon needs 64 credits to graduate from her community college. So far she has earnedc56 credits. What percent of the required credits does she have?
Answer:
87.5
Step-by-step explanation:
56/64*100
Select the correct answer.
Factor the given expression.
x2 + 16x + 64
A.
(x + 16)(x + 4)
B.
(x + 4)2
C.
(x + 8)(x − 8)
D.
(x + 8)2
Pls help will give brainliest if the answer it right
Answer: Factors are the numbers and/or variables between your transactions (division, multiplication, addition, and subtraction signs). So the answer would be x2, 16x, and 64.
Step-by-step explanation:
You welcome
Can I get brainliest when sun else answers?
PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG
Answer:
40 degrees
Step-by-step explanation:
Which value of x satisfies the equation below
Answer:
20
Step-by-step explanation:
2x + 10 = 50
-10 -10
2x = 40
x = 20
Next year, the company expects to have a production represented by the equation y = 4x.
Which of the following describes how the graph of the line would change if the company meets its goal?
A.
The line will be shifted up four units.
B.
The line will be shifted up two units.
C.
The slope of the line will be half as steep.
D.
The slope of the line will be twice as steep.
HAAAAAAALLLLLLLP
7th Grade IXL
Answer: This is middle school math?! Man I feel bad for you...
First one: ZZXY
Middle one: ZYXZ
Last one: ZXZY
Answer:
mark the other guy brainliest I answer so he can get it
Step-by-step explanation:
Rewrite this expression using the distributive property.
(3x2 + 4x-7)(x-2)
Answer:
D
Step-by-step explanation:
Each factor on the right has to be multiplied by the equation on the left and then you add them.
The expression (3x² + 4x - 7) ( x- 2) can be rewritten as 3x³- 2x²- 15x + 14.
To rewrite the expression (3x² + 4x - 7) ( x- 2) using the distributive property, we need to distribute each term in the first polynomial to each term in the alternate polynomial.
(3x² + 4x - 7) ( x- 2)
= 3x²( x- 2) + 4x( x- 2)- 7( x- 2)
Now, distribute each term
= 3x³- 6x²+ 4x²- 8x- 7x + 14
Combine like terms
= 3x³- 2x²- 15x + 14
Thus, using the distributive property, the expression (3x² + 4x - 7) ( x- 2) can be rewritten as 3x³- 2x²- 15x + 14.
Learn more about Distributive Property here:
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Joe's cell phone cost him $21 per month plus $3 for every 1GB downloaded. What is the limit to the number of GBs he can download to stay within his monthly budget of $30?
Answer:
3GB’s you just add 21 to 3 and keep adding 3 until you reach 30
21+3=24 24+3=27 27+3=30
Step-by-step explanation:
joe can only use 3gb of data . bill is 21
21+9+30
1gb=3
3*9=9
3(3)+21=30
3×3=$9
$21+9= $30
he can download up to 3 gbs anymore and he'll go over budget.
(12.3x10^5)/(3x10^2) PLEASE HELP ME
plz show how you got the answer
Hi there! I'm here to help. :)
Okay, so here you are solving for x. To solve for x, you must get it alone on one side of the equal sign. As we can see, it is not alone, and it is with 1 1/4 on the left side of the equal sign.
To get it alone, we need to subtract 1 1/4 from both sides. However, to subtract fractions, we need to make sure they have the same denominator. Looking at the fractions, we can see that they have two different denominators.
Begin by converting both fractions into improper fractions:
1 1/4 = 5/4
3 1/2 = 7/2
So now our equation looks like this: x + 5/4 = 7/2
Now we need to make it to where we our fractions have the same denominator.
Our current denominators are 4 and 2. The LCM (lowest common multiple) of 4 and 2 is 4, so you leave 5/4 as it is (because it's denominator is already 4) and you change 7/2.
Multiply 2 * 2 to make the denominator 4 in 7/2, but whatever you do to the denominator, you MUST do to the numerator. So multiply 7 * 2 = 14. Now your fraction looks like this: 14/4
Now we have:
1 1/4 = 5/4
3 1/2 = 14/4
Our denominators are the same now! Now here comes the easy part: We subtract! Do 3 1/2 - 1 1/4, or, 14/4 - 5/4. To subtract fractions, simply subtract the numerators and leave the denominators as is. 14 - 5 = 9, so 14/4 - 5/4 = 9/4.
Now our equation looks like this:
x = 9/4
LASTLY: All of your options are mixed numbers, so convert this improper fraction back into a mixed number. 9/4 = 2 1/4.
So, x = 2 1/4. :)
draw a line representing the rise and a line representing the run of the line. State the slope of the line in simplest form
Answer:
m = -1
Step-by-step explanation:
The slope of a line is calculated as ;
Given : (-2,3) and (2,-1)
m = Δy/Δx
m= -1-3 /2--2
m = -4 /4 = -1
The slope is -1
Hello Guys will ya'll pls help me with these
quiestions...?
Answer:
I'll help you with this so reflections is not hard.
For reflect over x-axis you need to switch the sign on Y. formula for points like this is (x,y). An example is reflect (2,4) over the x-axis. you just change the sign of y making the answer (2,-4).
For reflect over y-axis you change the sign of X.For example reflect over the y-axis (3,7) all you have to do is change the sign of X which leaves you with the answer of (-3,7).
sign is basically + or - if need to know.
I hope this helps you in the long run.
WILL MARK YOU BRAINLIEST
Answer:
Hey i think its C
Step-by-step explanation:
Which of the points are solutions to the inequality check all that apply identifying solutions to any quality
Answer:
(0, -4)
Step-by-step explanation:
write the multiplier or divisor for each pair of equivalent fractions 1/4 = 7/28