A system of equations is when there are 2 or more equations. When does a system of equations have no solution? Also, create an example of 2 equations that would demonstrate that situation.
Answer:
Step-by-step explanation:
The solution is the set of points where all the equations intersect. If there is no such point, there is no solution.
For example,
y = 8
y = 6
These are parallel lines with no points in common.
Jen rode her bike 1/5 of a mile to her friend's house. It took her 5 minutes to get there. What was Jen's speed in miles per minute? *
Answer:
1= 25 minutes i believe
Step-by-step explanation:
please help due today find the slope.
Answer:
35. 7/4
36. 1/4
37. 1/3
38. 8/5
39. 3/0 or 3
40. 2/3
Step-by-step explanation:
All you have to do is start with the bottom dot and count up and count left or right to were the other dot is. Then u set up your slope which could be a fraction. Rise/Run
Help I am trying to get good grades and because I want a phone for my birthday please help!!
Answer:
3:24 = 1:8
Step-by-step explanation:
for every 8 faces, there is 1 tongue
pls help me!! thank you!!
Answer:
4
Step-by-step explanation:
Complete the table.
Answer:
40
60
Step-by-step explanation:
20÷2=10
10×4=40
10×6=60
Answer:
3 min would be 30 min walking
Step-by-step explanation:
the ratio is 1 : 10
so every x the y will be 10 time x
so 4 --> 40
6 --> 60
A map is drawn so that every 1 inch on the map represents 50 actual miles. The table below can be used to record the
actual distances between towns on the map
Actual Distances and Map Distances
Actus Distance (ml.)
50
Map Discuice (in.)
1
What is the actual distance between two towns that are 4 inches apart on the map?
O 54 miles
O 80 miles
O 150 miles
O 200 miles
Answer:
200 miles
Step-by-step explanation:
one inch = 50 miles, 4 × 50 = 200
1. The family life cycle evolves (develops slowly) in _________.
Answer:
Step-by-step explanation:
Each family experiences stages over time that follow a fairly predictable pattern
Ann has $300 to spend. She gets a game system for $85 and games cost $12 each. How many games can she buy?
Answer:
She Can Buy Around 17 Games
Step-by-step explanation:
300-85=215÷12=17
what is the measure of
Answer:
100degrees or D
Step-by-step explanation:
Answer:
the measure of x is 100 degrees
Step-by-step explanation:
75 miles in 3 hours ; 140 miles in 4 hours
Answer:
no
Step-by-step explanation:
75:3=25:1
140:4=45:1
Find the slope of the given line, if it is defined.
The line through the origin and (-9,12)
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The slope equals
(Simplify your answer.)
B. The slope is undefined.
Answer:
The slope equals -⁴/3
Step-by-step explanation:
Slope of the line passing through the origin (0, 0) and (-9, 12):
Slope = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{12 - 0}{-9 - 0} = \frac{12}{-9} = -\frac{4}{3} [/tex]
Slope (m) = -⁴/3
Hideki buys 2 sweaters for $18 each. He can use one of the following coupons:
Coupon 1: Buy one, get one 40% off
Coupon 2: 25% off entire purchase
Which coupon should Hideki use to get a better deal
Answer:
25% of the entire purchase
Step-by-step explanation:
18×1.60= 40%=28.8 18+18=36 36×.75=25%=27
Please help with this !! ASAP
Answer:
B) 12
Step-by-step explanation:
These two angles are known as same-side interior angles. These angles add up to 180°. Use this to solve for y:
9y + 7 + 7y - 19 = 180
16y - 12 = 180
16y = 192
y = 12
2. Which is greater a. 25% of 15 b. 15% of 25
Answer:
Hi! The correct answer is they're equal!
Step-by-step explanation:
Answer:
The correct answer to this equation is that they are equal
Step-by-step explanation:
you do math
The engineer designed the valve such that it would produce a mean pressure of 5.0 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 6 engines and the mean pressure was 5.4 pounds/square inch with a standard deviation of 0.7. A level of significance of 0.025 will be used. Assume the population distribution is approximately normal. Make the decision to reject or fail to reject the null hypothesis.
Answer:
The calculated value t = 1.399 < 2.5705 at 0.025 level of significance
Null hypothesis is accepted
The population distribution is approximately normal
Step-by-step explanation:
Step(i):-
Given mean of the Population = 5.0
sample size 'n'= 6
The mean of the sample x=5.4 pounds /square inch
The standard deviation of the sample (S) = 0.7
Level of significance = 0.025
Null Hypothesis : The sample came from population
H₀ : x⁻ = μ
Alternative Hypothesis :H₁ : x⁻ ≠ μ
Step(ii):-
Test statistic
[tex]t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }[/tex]
[tex]t = \frac{5.4 -5.0}{\frac{0.7}{\sqrt{6} } }[/tex]
t = 1.399
Degrees of freedom = n-1 =6-1 =5
The tabulated value
t = 2.5705
The calculated value t = 1.399 < 2.5705 at 0.025 level of significance
Null hypothesis is accepted
The population distribution is approximately normal
The 2006 Guinness Book of World Records for the heaviest man was Manuel Uribe. He weighed 1,230 pounds. How many ounces did he weigh?
at the end of dinner a restaurant had several dishes of quiche each with 2/6 size pieces of quiche. the chef was able to combine these pieces to make 2 whole quiches wuth no leftover. how many dushes did the chef combine
Answer:
6 dishes
Step-by-step explanation:
since he made 2 dishes and there is a two in the numerator, all we have to do is multiply by 6 to get 2 by itself
What is the slope of the line represented by the equation y=-5x?
1
ОО
us when we o
5
Answer:
slope = -5
Step-by-step explanation:
not sure what 1 OO us when we o 5 is? but in y = mx + b, m = slope and b = y int so slope is -5 (y int is 0)
Jose wants new carpeting for his living room his living room is 8 m x 8 m how much carpeting does he need to buy to cover his entire living room? if carpet cost five dollars per square meter how much will he?
Answer:
64
Step-by-step explanation:
8 x 8 = 64
I need help
With this question ASAP PLS
Consider the polynomial function g(x)=-10x^7-9x^5+7x^3-8x.
What is the end behavior of the graph of g?
Answer:
the graph rises to the left and falls to the right.
the answer is B
Step-by-step explanation:
The polynomial function [tex]g(x)=-10x^7-9x^5+7x^3-8x.[/tex]. Option B is correct. When x ---> ∞ , g(x) --> -∞ and when x --> -∞, g(x) --> ∞ .
Given that,
polynomial function [tex]g(x)=-10x^7-9x^5+7x^3-8x.[/tex]
A polynomial function is a function that applies only integer dominions or only positive integer powers of a value in an equation such as the quadratic equation, cubic equation, etc. ax+b is a polynomial.
What is range?The Range, it is the set of the values that come out to an outcome for a certain mathematical operation.
Since, In the question, polynomial function [tex]g(x)=-10x^7-9x^5+7x^3-8x[/tex] is given,
When the value of x = (0, +∞)
range of g(x) = (0, -∞)
Whn the value of x = (0, -∞)
range of g(x) = (0, +∞).
Thus, the polynomial function [tex]g(x)=-10x^7-9x^5+7x^3-8x.[/tex]. Option B is correct. When x ---> ∞ , g(x) --> -∞ and when x --> -∞, g(x) --> ∞ .
Learn more about polynomial function here:
https://brainly.com/question/12976257
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when tge united states is in tge dark whatvare some places on the globe that are light
Answer:
Argentina and Chile!
- •Promise• {Kacchan}
please please please please please answer A through D
Answer:
A: Yes, As more gallons are used the longer the shower is
B: 5 minutes, 20 minutes
C: (30,10), someone who uses 30 gallons of water will be in the shower for 10 minutes
D: I'm going to assume that your teacher wants you to find the slope in which I will use the slope formula and the points (0,0) and (30,10)
(10-0)/(30-0)=1/3=.33333 which means that for every gallon of water used you will be in the shower for .33333 minutes longer
Step-by-step explanation:
A: Yes, As more gallons are used the longer the shower is
B: 5 minutes, 20 minutes
C: (30,10), someone who uses 30 gallons of water will be in the shower for 10 minutes
D: I'm going to assume that your teacher wants you to find the slope in which I will use the slope formula and the points (0,0) and (30,10)
(10-0)/(30-0)=1/3=.33333 which means that for every gallon of water used you will be in the shower for .33333 minutes longer
6) Solve the equation by Completing the Square. Show all the solutions.
x2 + 8x -5 = 0
Which of these is equal to the value of 9 – (–5)?
–9 – 5
9 + 5
9 – 5
–9 + 5
Answer:
b) 9 + 5
Step-by-step explanation:
→ 9 - (-5)
→ [ 9 + 5 ] = 14
So, option (b) is answer.
5(-2n+4)
what's the answer
-8n +26
I think so I remember doing this.
If you make a histogram's intervals smaller, and its vertical scale stays the same, which of these statements will be true? A. The height of the bars will decrease. B. The total number of bars will decrease. C. The width of the bars will increase. D. Each bar will represent more data items than before.
Which number is the best estimate for the fraction 29/40?
A) 0.5
B) 0.6
C) 0.7
D) 0.8
I know it’s B I just don’t know the explanation for it. Please help me. The question is on desmos
Answer:
Its actually C
Step-by-step explanation:
|So you first divide 29 from 40. You will need to long divide...because 40 cant go into 29. you will put a 0 on the top then you will put a decimal behind the 0 representing your going into the tenths, and then from there you just divide like you usually do.
Hope you get it, if you need more explanation please tell me :)
A binary communication channel carries data as one of two sets of signals denoted by 0 (zero) and 1. Owing to noise, a transmitted 0 is sometimes received as a 1, and a transmitted 1 is sometimes received as a 0. For a given channel, it can be assumed that a transmitted 0 is correctly received with probability 0.95 and a transmitted 1 is correctly received with probability 0.75. Also, 70% of all messages are transmitted as a 0. If a signal is sent, determine the probability that a 1 was received.
Answer:
26% probability that a 1 was received.
Step-by-step explanation:
We have these following probabilities:
70% probability that a message is transmitted as a 0.
100 - 70 = 30% probability that a message is transmitted as a 1.
If a message is transmitted as a 0, 95% probability of being received as a 0 and 5% probability of being received as 1.
If a message is transmitted as a 1, 75% of being received as a 1 and 25% probability of being received as a 0.
If a signal is sent, determine the probability that a 1 was received.
5% of 70%(Sent 0, received 1) of 75% of 30%(sent 1 and received 1). So
[tex]p = 0.05*0.7 + 0.75*0.3 = 0.26[/tex]
26% probability that a 1 was received.
