Step-by-step explanation:
In this case, you input the value of y (y = 6) into the equation ( 2.5(y-x)= 0)
2.5(6-x) = 0
Open the bracket,
(2.5×6)-2.5x= 0
Collect like terms.
2.5x= 2.5×6
Divide both sides by the coefficient of x (2.5)
x = 6
So,
x= 6 is true.
.
Substituting 6 for x in the equation,
2.5(6-6)= 0
2.5•0 = 0
0= 0
Which is also true.
Margo wants to convince her father to change her curfew from 9 P.M. to 10 P.M. She gathers data on curfew times from a random sample of students at her middle school. Can Margo use these data to present a valid inference that will convince her father? Explain.
Answer:
Yes; More students have a curfew of 9 P.M. than any other time.B
Step-by-step explanation:
(Please someone help me!) (NO LINKS!)
Answer: A
Step-by-step explanation:
Cost for one day is 12.5 and if the number of days is X, cost for X days will be 12.5X
12.5 was from two days rent divided by 2
Answer number 7 part A please. Thank you.
Answer:
6,300
Step-by-step explanation:
About 70% of the population will say yes, which is 6,300 out of 9,000
Answer:
6300
Step-by-step explanation:
70
___
100
said yes
there is 9000
change 100 to 9000
that x90
70x 90=6300
State the possible Number of positive and negative zeros for each function.
f(x) = 9x6 -3x5+ 33x4 -11x³ + 18x²- 6x
Algebraic rule
If a polynomial has n th degree then it has n no of zerosAs
here the polynomial has degree 6
Total zeros 66 can be all negative or positive
Answer:
Both positive (or) negative
Step-by-step explanation:
The polynomial's degree is 6 and so the polynomial has 6 zeroes. These zeroes can be either positive or negative.
The bases of a trapezoid have lengths of 10 feet and 22 feet. Find the length of the midsegment of the trapezoid.
Answer:
16 feet.
Step-by-step explanation:
Midsegment = (10+22)/2
= 32/2
= 16.
WILL GIVE BRAINLIEST
For what value of k will the relation R= {(2k+1, 3), (3k-2, -6)} not be a function?
Answer:
3
Step-by-step explanation:
2k+1 = 3k -2
k =3
every child has a 1 mom
f 7 = 3 f7= -6 this is imposible
[tex]\sf \boxed{\bold{k = 3}}[/tex]
Explanation:
If the first values of the two ordered pairs are the same, the relation is not a function.
Solve:
2k + 1 = 3k -2
2k - 3k = -2-1
-k = -3
k = 3
When k = 3, for the relation R= {(2k+1, 3), (3k-2, -6)} will not be a function.
100! POINTS
You and your partner will each study 2 student scenarios to see how social media spreads Four student scenarios are described in the table below together with your partner to decide on who will study which two students
1. State which two students you are studying so your instructor knows for whom each partner is responsible 2.Provide an exponential function representing Anita's social media shares 3. Provide an exponential function representing Juan's social media shares 4.Using the functions for each student, predict how many shares each student's post will have received on Day 3 and then on Day 10. Justify your answer 5.Based on your resultswhich student's post travels the fastest? How is this shown in the equation form of the functions? 6. If you had to choose, would you prefer a post with fewer friends initially but more shares or more friends initially but fewer shares? Does your partner agree or disagree? Can you think of reasons why more fewer shares are preferable? Justify your answer with your calculations from previous questions
Answer:
General form of an exponential function: [tex]y=ab^x[/tex]
where:
a is the initial valueb is the growth factorx is the independent variabley is the dependent variableAnita's initial value is 41 and the number of viewers doubles each day
[tex]\implies f(x)=41(2)^x[/tex]
Juan's initial value is 4 and the number of views quadruples each day
[tex]\implies f(x)=4(4)^x[/tex]
Day 3
[tex]\textsf{Harrison}:f(3)=7(2)^3=56[/tex]
[tex]\textsf{Anita}:f(3)=41(2)^3=328[/tex]
[tex]\textsf{Juan}:f(3)=4(4)^3=256[/tex]
[tex]\textsf{Krista}:f(3)=6(3)^3=162[/tex]
Day 10
[tex]\textsf{Harrison}:f(10)=7(2)^{10}=7168[/tex]
[tex]\textsf{Anita}:f(10)=41(2)^{10}=41984[/tex]
[tex]\textsf{Juan}:f(10)=4(4)^{10}=4194304[/tex]
[tex]\textsf{Krista}:f(10)=6(3)^{10}=354294[/tex]
Juan's post travels the fastest.
This is shown by the growth factor in the equation form of the functions.
Juan's equation has the largest growth factor of 4.
Use the drop-downs to identify the domain and range of the following relation.
{(–4, –7), (0, 6), (5, –3), (5, 2)}
What is the domain of this relation?
What is the range of this relation?
Answer:
4 0 5 7 3 2 6
Step-by-step explanation:
Just did the assignment
Stephen bought a package of stickers for $0.50. His brother bought 4 times as many packages. How much did his brother spend? (3 points) a $2.00 b $2.25 c $2.50 d $3.00
a $2.00
Step-by-step explanation:
0.50 x 4 = 2
If he bought 4 times as many, then take the price times 4.
Answer:
$2.00
Step-by-step explanation:
Stephen bought 1 package for $0.50. His brother bought 4 times as many (4 * 1 packages). Which means his brother bought 4 packages.
If each package costs $0.50 then we simply multiply the price with the amount of packages he bought:
4 * $0.50. Lets get rid of the dollar sign, so it doesn't distract us.
I'm not sure if you studied about floating point numbers yet, but I assume you did.
4 * 0.50 =?
We have two numbers after the floating point, but for the sake of simplicity we can get rid of it too and just multiply 4 * 50 and then put the floating point back into the number after the first two digits (because we removed it after two digits 0.50)
Anyway 4 * 50 = 200
We add the floating point and get:
2.00
Therefore his brother spent $2.00 after we add the dollar sign back in
What is the answer
((((5+5+6+6+8+8+10+10)*2)*4)*6)=
Answer:
58*48 is the answer for ((((5+5+6+6+8+8+10+10)*2)*4)*6
Step-by-step explanation:
Answer:
((((5+5+6+6+8+8+10+10)*2)*4)*6)=((((10+12+16+20)*2)*4)*6)=((((22+36)*2)*4)*6)=((((58)*2)*4)*6)=((116*4)*6)=(464)*6)=2784
Step-by-step explanation:
What fraction of the sweaters cost $50 or less?
Answer:
8/15 is the fraction I think
The answer is that 50% of the sweaters cost $50 or less.
What is a box plot?To determine the fraction of sweaters that cost $50 or less, we need to look at the box plot and identify the range of prices that fall within that category.
Looking at the box plot, we can see that the box extends from $40 to $60, which means that 50% of the sweaters sold were priced between $40 and $60. Additionally, we can see that the left whisker of the box plot extends down to $30, which means that some sweaters were sold for less than $40.
Therefore, to find the fraction of sweaters that cost $50 or less, we need to calculate the portion of the box plot that falls below $50.
From the box plot, we can see that the distance between $40 and $50 is half of the total distance of the box or 25%. And the distance between $30 and $40 is also 25%. Therefore, the total fraction of sweaters that cost $50 or less is 25% + 25% = 50%.
So, the answer is that 50% of the sweaters cost $50 or less.
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If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the second equation is substituted into the first equation.
3x + 2y = −21
x − 3y = 4
A. 3(3y + 4) + 2y = −21
B. 3(−3y + 4) + 2y = −21
C. 3x + 2(3y + 4) = −21
D. 3x + 2(−3y + 4) = −21
Answer:
B
Step-by-step explanation:
when you subtact 3y on both sides
you get x = -3y+4
Solve for xx. Round to the nearest tenth of a degree, if necessary.
Answer: 38.2
Step-by-step explanation:
Find the surface area. Do not include units in your answer.
Answer:
The surface area of the triangular prism is 223.789 cm^2.
Step-by-step explanation:
Answer:
144
Step-by-step explanation:
cross section area multiply by length.
i.e
(1/2*4*6) *12
1. What is the type of association between variables x and y?
options:
strong positive
strong negative
perfect positive
no association
2. What is the type of association between variables x and y?
options:
no association
moderate positive
weak negative
strong negative
The statements that describe the variables x and y are:
The association between variables x and y is (d) no associationThe type of association between variables x and y is (a) no associationHow to determine the associationIn the graph that relates variables x and y (see attachment), we can see that the points are scattered on the coordinate plane and they do not follow a specific pattern.
If the points are scattered, then the graph shows no association.
Hence, the graph shows no association
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Answer question attached. No working needed.
x= - 0.9, y=2.9
Or
x= 2.9, y= -0.9
Hope this helps!
Megan has been planting young trees in her garden. One maple tree is 66 centimeters tall and is growing 8 centimeters per month. One oak tree is 70 centimeters tall and is growing 7 centimeters per month.
Two corners were removed from a square to create the polygon shown. 10 30 22 30 Determine the area of the polygon. units²
Answer:
b
Step-by-step explanation:
The spinner is equally likely to land on any of the six sections. a spinner contains 6 equal sections: 1, 2, 3, 4, 5, 6. sections 1, 3, and 5 are shaded. the spinner is pointing at number 6. what is the probability that the spinner will land on a number greater than 4 or on a shaded section? two-ninths one-half two-thirds five-sixths
The probability that the spinner will land on a number greater than 4 or on a shaded section is five-sixt
What is probability?Probability is the likelihood or chance that an event will occur. Mathematically;
Probability = Expected/Total
If the spinner is spinned, the total outcome is 1/6
Pr(greater than 4) = 2/6 = 1/3
Pr(shaded section) = 3/6 = 1/2
Pr(number greater than 4 or on a shaded section) = 1/3 + 1/2
Pr(number greater than 4 or on a shaded section) = 5/6
Hence the probability that the spinner will land on a number greater than 4 or on a shaded section is five-sixths
Learn more on probability here: https://brainly.com/question/25870256
Answer:
D. 5/6
Step-by-step explanation:
i can feel the course of the correct answer pierce through my veins, trust me... its correct.
Jose decided to keep track of his sleep using a fitness tracker. He was surprised to learn that there was 12 minutes of awake time during the eight hours when he was supposed to be asleep at night. What percentage of the eight hours was Jose awake during the night? _____ %
Answer:
2.5% believe.
Step-by-step explanation:
I may be wrong but heres how I solved it.
Take the 8 hours and convert it to minutes.
8 hours - 480 minutes total
12 minutes out of 480 minutes is 2.5%
A closet contains 5 cases of laundry detergent. Each case contains 12 bottles. Each bottle contains 3 liters of detergent
Students are comparing their helghts. Jose is 416, feet tall, Lee is 414, feet tall, Judi is 4112, feet tall, and Sammy is 423. feet tall. Which student is the tallest?
f Judi
g Jose
h Sammy
j Lee
Can anyone help me with my homework
Step-by-step explanation:
for the table on the left (Q5)
y(-1) = -5
y(1) = -1
y(3) = 3
for the table on the left (Q7)
y(0) = 5
y(1) = 2
y(2) = -1
y(3) = -4
I NEED THAT ANSWER ASAP
Answer:
12.7
Solving steps:-
d = a√2
d = 9 (1.41)
d = 12.69
d = 12.7
Reflect triangle ABC over the line y = 2.
Translate the image by the directed line segment from (0, 0) to (3, 2).
What are the coordinates of the vertices in the final image?
The question is an illustration of transformation, and the coordinates of the image of the triangle are (-3,7), (-2,4) and (0,6)
How to transform the triangle?The coordinates of the triangle are given as:
(-6,-1), (-5,2) and (-3,0)
When the triangle is reflected across the line y = 2 is, the new points are
(-6,5), (-5,2) and (-3,4)
Next, we translate the image of the triangle using the translation
(x,y) -> (x + 3, y +2)
So, we have:
(-6,5) => (-6 + 3, 5 + 2) = (-3,7)
(-5,2) => (-5 + 3, 2 + 2) = (-2,4)
(-3,4) => (-3 + 3, 4 + 2) = (0,6)
Hence, the coordinates of the image of the triangle are (-3,7), (-2,4) and (0,6)
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Quentin agreed to pay 7% shipping and handling charge. If Quentin paid $9. 45 in shipping and handling, how much must the racquet have cost?
Answer:
The cost of the racquet is $135
Step-by-step explanation:
Let
x-----> the cost of the racquet
we know that
The racquet represent the 100%
so
using proportion
x/100%= $9.45/7%
x=100%*($9.45)/7
x=$135
My math teacher help me with it.
What does PEMDAS stand for?
Answer:
Parentheses Exponents Multiplication Division Addition Subtractions
You have to do these operations in order when solving oder of operations.
Answer:
“PEMDAS” (parenthesis, exponents, multiplication, division, addition, subtraction) to help you remember? Memorable acronyms aren't the only way to memorize concepts.
Step-by-step explanation:
i think it would help.
Find the difference of 29 and 13, and then divide by 2.
Answer:
8
Step-by-step explanation:
29-13=16 16/2=8
Answer:
your answer is 8
Step-by-step explanation:
29 - 13 = 16 / 2 =8
also can you mark me as brainliest
What is the volume of the following triangular prism?
252 yd
126 yd
42 yd
Answer:
V = 126 yd3
Step-by-step explanation:
The base: [tex]\frac{(9)(4)}{2} =\frac{36}{2} =18[/tex]
The volume: [tex]v=(18)(7)=126yd^{3}[/tex]
Hope this helps
please help me for 15 points
if you don't know please don't try to comment wrong answer
please send with explaination
Answer:
x=0 , x=-3
Step-by-step explanation:
Apply all exponent rules:
[tex]3^{x+3}[/tex] = [tex]3^{x}[/tex]×[tex]3^{3}[/tex]
[tex]\frac{1}{3^{x} }[/tex] = [tex](3^{x} )^{-1}[/tex]
Rewrite equation with [tex]3^{x}= u[/tex]
[tex]u[/tex] × [tex]3^{3}[/tex] + [tex]u^{-1}[/tex] - 28 = 0
Solve for u to give :
u = 1, u = 1/27
Substitute back u = [tex]3^{x}[/tex], solve for x :
[tex]3^{x}[/tex] = 1 , x= 0
[tex]3^{x}= \frac{1}{27}[/tex] , x= -3
x=0 , x=-3
Substituting x back into original equation verifies our answers