Mathematics College
Answers
Answer 1
Given:
Jayla says that the equation [tex]y=2x-3[/tex] matched the graph.
To prove:
Jayla is correct
Solution:
We have,
[tex]y=2x-3[/tex] ...(i)
The ordered pairs are (3,3), (4,5), (5,7).
We need to substitute the ordered pairs into the equation to prove that Jayla is correct.
For point (3,3), put x=3 and y=3 in (i).
[tex]3=2(3)-3[/tex]
[tex]3=6-3[/tex]
[tex]3=3[/tex]
[tex]LHS=RHS[/tex]
So, point (3,3) lies on the line [tex]y=2x-3[/tex].
For point (4,5), put x=4 and y=5 in (i).
[tex]5=2(4)-3[/tex]
[tex]5=8-3[/tex]
[tex]5=5[/tex]
[tex]LHS=RHS[/tex]
So, point (4,5) lies on the line [tex]y=2x-3[/tex].
For point (5,7), put x=5 and y=7 in (i).
[tex]7=2(5)-3[/tex]
[tex]7=10-3[/tex]
[tex]7=7[/tex]
[tex]LHS=RHS[/tex]
So, point (5,7) lies on the line [tex]y=2x-3[/tex].
All three point (3,3), (4,5), (5,7) satisfy the given equation.
Therefore, jayla is correct. Hence proved.
Related Questions
7.86÷0.2
I need you to answer with step by step explaination
Answers
1. Moved the decimal on both sides
2. The equation became 78.6/2
3. Divided 7/2, got 3
4. Divided 8/2, got 9
5. Put the decimal point on the preferred spot
6. Divide 6/2, got 3
7. 78.6/2 equals 39.3
Which of the following combinations of coins have a value of 140% of a dollar?
140 pennies
14 dimes
10 dimes and 4 nickels
5 quarters and 3 nickels
Answers
Answer:
Step-by-step explanation:
140 pennies is 1 dollar and 40 cents
14 dimes is a dollar equals 140 cents
10 dimes and four nickles equals 75% of a dollar
5 quarters and three nickles equals a dollar and 40 cents
Suppose you walk 2 miles in 35 minutes. 4. write a proportion to find how far you would walk in an hour if you were to continue at the same rate.
Answers
Answer:
2/35 * x/60
Step-by-step explanation:
the x is what you're trying to find. the 60 is how many minutes there are in an hour. when setting up this proportion, you can't put 1 for 1 hour because you have 35 minutes. if it says minutes, then keep everything in minutes. from here, you would cross multiply and solve, that should give you the answer :) hope this helps <3
Triple the sum of x and five amounts to the product of two and x.
Answers
Answer: 15
Step-by-step explanation:
3(x+5)=2x
3x+15=2x
15=x
Please help for brainliest and it’s is not 48
Answers
Answer:
10 ? or 7.6 ?
(not 100% sure)
If you wrote 0.0009763 as a single digit times a power of ten, would the exponent be positive or negative?
The exponent would be negative because the original number is greater than one.
The exponent would be positive because the original number is greater than one.
The exponent would be negative because the original number is less than one.
The exponent would be positive because the original number is less than one.
Answers
Answer:
the exponent would be negative because the original number is less than one
Step-by-step explanation:
example: 0,1= 1.10^-1
The exponent would be negative because the original number is less than one. Option 3 is correct.
What is an integer exponent?
In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.
0.0009763 can be written as a single-digit time power of ten by the following representation,
0.0009763 = 9.763×10⁻⁴
The power of the integer 10 is shown as the exponent. Here the value of the power of 10 is -4, as a result, the value of the exponent would be negative and it is due to the fact that the original number is less than one.
Thus, the exponent would be negative because the original number is less than one. Option 3 is correct.
Learn more about the integer exponent here:
brainly.com/question/4533599
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Tell whether the triangles are similar. Explain.
440
80°
440
56°
Answers
Similar because they are missing 56 and 80 in the missing degrees. Equal same
Sales Tax. The sales tax on a purchase of L dollars is 6%. Write an algebraic expression that represents the total amount of sales tax.
Answers
Answer:
The value is [tex]T = 0.06L [/tex]
Step-by-step explanation:
From the question we are told that
The sales tax is [tex]k = 6\%[/tex]
Generally the total amount of sales tax is mathematically represented as
[tex]T = 6\% \ of \ L[/tex]
=> [tex]T = \frac{6}{100} * L[/tex]
=> [tex]T = 0.06L [/tex]
Geometry question, look at picture
Answers
Answer:
152° = w + 73°
=> 152° - 73° = w
=> 79° = w
If my answer helped, please mark me as the brainliest!!
Thank You!!
Andre brought a new bag of cat food. The next day, he opened it to feed his cat. The graph shows how many ounces were left in the bag on the days after it was brought.
Answers
What’s the question???
PLEASE HURRY 100 POINTS!
Graph x > 2.
Answers
Answer:
see below
Step-by-step explanation:
We know that x > 2 that means the line at x = 2 is dotted since there is no equals sign
We shade to the right since x is greater
Answer:
sea below
Step-by-step explanation:
Logan and his children went into a restaurant and where they sell drinks for $3 each and tacos for $2 each. Logan has $35 to spend and must buy at least 12 drinks and tacos altogether. If Logan decided to buy 5 drinks, determine all possible values for the number of tacos that he could buy.
Answers
Answer: if he buys 5 drinks he can buy 10 tacos
Step-by-step explanation:
What is the range of the function y = 5 - 2 x when the domain is {0, 1, 2, 3}?
Answers
Answer:
5, 3,1,-1
Step-by-step explanation:
Pls pls pls pls help me i nerd help asap i will give BRAINLIEST!!!!!!
Answers
Answer:
y = 2x+4
Step-by-step explanation:
From the graph, we can tell that slope is 2 because if we go up 2 units up from (0,4) which is point Q and then go right 1 unit, the slope is 2. The y intercept is (0,4)
y = mx + b
m --> slope
b --> y-intercept
y = 2x+4
The answer would be (3, 4) hopefully it’s correct but I’m not sure. I’m glad to help you.
Which number is positive?
-87
-20
9
-6
Answers
Answer:
9 that is the answer.....
Answer:
the answer is 9
Step-by-step explanation:
the rest are negative numbers
Determine whether y varies directly with x. If so, find the constant of variation k. 4y=x
Answers
Answer:
k = 1/4
Step-by-step explanation:
y = kx
4y=x
y = 1/4x
Answer:
Step-by-step explanation:
Given: f(x) = -2x + 10
Find: f(2)
Answers
Answer: 4
Step-by-step explanation: Subtract 10 from each sides and divide both sides by -2
Find the x-intercept of the following equation. Simplify your answer.
4x + 7y = 8
x-intercept =
Answers
The X- intercept is (2,0) if you’re looking for one number then it would just be 2
What laws being modeled?
Answers
Answer:
law of contrapositive
Step-by-step explanation:
-6 - (-8) + 6 =
What is the value?
Answers
Answer:
The answer is 8
Step-by-step explanation:
use order of operations.
*remember that there is an understood -1 in -(-8). this can also be written as -1(-8)*
[tex]-6-(-8)+6\\-6+8+6\\2+6\\8[/tex]
hope this helps!
Find the distance covered by a car travelling at 65 65-kmh-1 for 7 hours.
Answers
Answer:
1105km
Step-by-step explanation:
d=s×t
=65kmh^-1×7
=1105km
The coldest day in Ohio clocked in at 40° below zero. In one day, though, the temperature changed to 20° below zero. How much temperature change was there that day?
Answers
40-20 = 20 meaning your answer is The Temperature Changed 20° That Day.
Answer:
[tex]{\huge{\pink{\underline{\underline{Question}}}}}[/tex]
The coldest day in Ohio clocked in at 40° below zero. In one day, though, the temperature changed to 20° below zero. How much temperature change was there that day?
[tex]{\huge{\pink{\underline{\underline{Answer}}}}}[/tex]
The coldest temperature of Ohio=-40degree.
The other day temperature of Ohio=-20degree
Change in temperature =-40-(-20)=-40+20=-20degree...
solve for m p=mnq, whats the answer
Answers
Easy buddy...
[tex]p = m \times n \times q[/tex]
Divided the sides of the equation by n
[tex] \frac{p}{n} = m \times q \\ [/tex]
Divided the sides of the equation by q
[tex] \frac{p}{n \times q} = m \\ [/tex]
So
[tex]m = \frac{p}{nq} \\ [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Which equation does not belong with the other three? O y= -5x - 1 O 2x - y = 8 O y = x +4 y = -3r + 13
Answers
Answer:
The equation y = -3r + 13 does not belong with the other three.
Step-by-step explanation:
We have 4 equations
y = -5x2x - y = 8y = x + 4y = -3r + 13
The first 3 equations have relations between two variables x and y
So they are linear equations of two variables x and y
The fourth equation has a relation between two variables r and y
So it is a linear equation of two variables r and y
The fourth equation does not belong to with the first three equations because it has a different variable r
The equation y = -3r + 13 does not belong with the other three.
Robert receives a commission of 20% onsales of$ 3700.What is his commision rate?
Answers
Answer:
$740
Step-by-step explanation:
3700X20%=740
I think I'm good
Answer:
$740
Step-by-step explanation:
3700*0.20=740.
Hope this helps!
Every time you conduct a hypothesis test, there are four possible outcomes of your decision to reject or not reject the null hypothesis: (1) You don’t reject the null hypothesis when it is true, (2) you reject the null hypothesis when it is true, (3) you don’t reject the null hypothesis when it is false, and (4) you reject the null hypothesis when it is false.
Consider the following analogy: You are an airport security screener. For every passenger who passes through your security checkpoint, you must decide whether to select the passenger for further screening based on your assessment of whether he or she is carrying a weapon. Suppose your null hypothesis is that the passenger has a weapon. As in hypothesis testing, there are four possible outcomes of your decision: (1) You select the passenger for further inspection when the passenger has a weapon, (2) you allow the passenger to board her flight when the passenger has a weapon, (3) you select the passenger for further inspection when the passenger has no weapon, and (4) you allow the passenger to board her flight when the passenger has no weapon.
1. Which of the following outcomes corresponds to a Type I error?A. You allow the passenger to board his flight when the passenger has a weapon.B. You select the passenger for further inspection when the passenger has no weapon.C. You allow the passenger to board his flight when the passenger has no weapon.D. You select the passenger for further inspection when the passenger has a weapon.2. Which of the following outcomes corresponds to a Type II error?A. You allow the passenger to board his flight when the passenger has no weapon.B. You select the passenger for further inspection when the passenger has no weapon.C. You select the passenger for further inspection when the passenger has a weapon.D. You allow the passenger to board his flight when the passenger has a weapon.As a security screener, the worst error you can make is to allow the passenger to board his flight when the passenger has a weapon. The probability that you make this error, in our hypothesis testing analogy, is described by _____.
Answers
Answer:
1. A. You allow the passenger to board his flight when the passenger has a weapon.
2. B. You select the passenger for further inspection when the passenger has no weapon.
Explanation:
1. Remember, a Type I error in simple words means that the assumption "the passenger has a weapon" (null hypothesis) is actually true, but the airport security screener incorrectly concluded it is false. In other words, he assumed the passenger had no weapon and allowed the passenger to board his flight when he actually did have one.
2. While, a Type II error means that the assumption "the passenger has a weapon" (null hypothesis) is actually false, but the airport security screener incorrectly concluded it is true. In other words, he assumed the passenger had a weapon and selected the passenger for further inspection when he actually didn't have one.
Arrivals at a parking lot are assumed to follow the Poisson distribution. The average arrival rate is 2.8 per minute. What is the probability that during a given minute no cars will arrive
Answers
Answer:
[tex]P(x = 0) = 0.061[/tex]
Step-by-step explanation:
Given
[tex]Average = 2.8[/tex]
Required
Determine the probability that no car will arrive.
Since it is a Poisson distribution, the required probability is:
[tex]P(x) = \frac{e^{-m}m^x}{x!}[/tex]
Where
[tex]m = average = 2.8[/tex]
In this case;
[tex]x = 0[/tex]
So:
[tex]P(x) = \frac{e^{-m}m^x}{x!}[/tex]
[tex]P(x = 0) = \frac{e^{-2.8}2.8^0}{0!}[/tex]
[tex]P(x = 0) = \frac{e^{-2.8}*1}{1}[/tex]
[tex]P(x = 0) = e^{-2.8}[/tex]
[tex]P(x = 0) = 0.06081006262[/tex]
[tex]P(x = 0) = 0.061[/tex] --- Approximated
9. Higher Order Thinking Andy's team
scored a total of 10 goals in two games.
They scored 1 or 2 goals in the first
game. How many goals could they have
scored in the second game? Explain
how you know.
Answers
8 or 9 cause they scored 1 or 2 and 1+9 is 10 and 2+ 8 is 10
They scored either 8 or 9 goals in second game.
What is Addition?
Combining things and counting them as one big group is done through addition. In math, addition is the process of adding two or more integers together. Addends are the numbers that are added, while the total refers to the outcome of the operation.
As, Total goals = 10 in two games
Let x be the number of goals that a soccer team scored in the first half
and, y be the number of goals that a soccer team scored in the second half
So, x+ y = 10
x= 2 and y = 8
Thus, 2+ 8 = 10
Hence, They scored either 8 or 9 goals in second game.
Learn more about addition here:
https://brainly.com/question/1709448
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PLEASE HELP i’ll give u the brainlest thingy
Answers
Answer:
5.5
Step-by-step explanation:
by going off the total cost it should be 5.5 but if it's over c it should be y/5.5 x/8
How can You use mental math for 878 + 534=
Answers
think of it like your drawing it in your head
in my head i would say 8+4=12 carry the 1 so 7+3+1= 11 carry the 1 then 8+5+ 1= 14 so the answer would be 1,412
Answer:
the answer would be 1412
Step-by-step explanation: Take the '4' in 534, add it to the 878 in your head. Thus resulting in 882. Then add the 30 to this number. After adding 30, you should get 912. Then add 500, and your answer is 1412.
