Answer:
Step-by-step explanation:
X intercept occurs when y = 0
-2x + 5(0) = -10
x = -10/-2
x = 5
Shelby will take a total of 6 tests. On the first 5 tests, her scores were: 80, 85, 73, 78, 90. If she wants a mean grade of 80, what does Shelby have to score on her 6th test?
84
80
90
74
Answer:
74
Step-by-step explanation:
The mean of any set of numbers is simply the sum of the numbers divided by however many numbers you have. Because of this you can write the following equation
Mean = (sum of numbers)/(number of numbers)
Let's say that the missing test score is called x:
Mean = 80 = (80 + 85 + 73 + 78 + 90 + x)/6
80(6) = 80 + 85 + 73 + 78 + 90 + x
480 = 80 + 85 + 73 + 78 + 90 + x
x = 480 - 80 - 85 - 73 - 78 - 90
x = 74
Use the distributive property to rewrite as an expression
5(x+3)
Answer:
5x+15
Step-by-step explanation:
you mulityply 5*x and 5*3
If 2 inches are equivalent to 5 centimeters, how many square centimeters are in one square inch
Answer:
there are 6.45 or 6.5 square cm in one square inch
Step-by-step explanation:
An auto-parts store offers a fuel additive that claims to increase a vehicle’s gas mileage. The additive is poured into a vehicle’s gasoline tank after the tank is filled. To measure the claim, two methods to collect data are proposed.
Method A: 10 similar police cars owned by a city are selected. After the cars are filled with a fresh tank of gasoline, researchers randomly select 10 of the cars to receive the additive, while the other 10 do not receive the additive. The gas mileage for each car is recorded in miles per gallon.
Method B: 20 customers at an auto-parts store receive free coupons for the additive and are asked to use it with their next fresh tank of gasoline. The customers then report their gas mileage with the fuel additive.
Which method describes an experiment?
Method B is an experiment because every car receives the additive.
Method A is an experiment because the additive is used with a new tank of gasoline.
Both methods are experiments because the additive is used in a new tank of gas in both methods.
Method A is an experiment because random assignment determines which cars receive the additive and which cars do not.
Answer:
Method A is an experiment because random assignment determines which cars receive the additive and which cars do not.
Hit brainliest if this was helpful :)
Method A is an experiment because random assignment determines which cars receive the additive and which cars do not.
What is experiment?
An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated.
What is mileage?
Mileage tells us how many number of miles travelled or covered.
According to questions, an auto-parts store offers a fuel additive that claims to increase a vehicle’s gas mileage. The additive is poured into a vehicle’s gasoline tank after the tank is filled. To measure the claim, two methods to collect data are proposed.
In Method A: 10 similar police cars owned by a city are selected. After the cars are filled with a fresh tank of gasoline, researchers randomly select 10 of the cars to receive the additive, while the other 10 do not receive the additive. The gas mileage for each car is recorded in miles per gallon.
In Method B: 20 customers at an auto-parts store receive free coupons for the additive and are asked to use it with their next fresh tank of gasoline. The customers then report their gas mileage with the fuel additive.
Based on the questions, Method A is an experiment because random assignment determines which cars receive the additive and which cars do not. Method B does not report the mileage before fuel additive.
Hence, we can conclude that Method A is an experiment because random assignment determines which cars receive the additive and which cars do not.
Learn more about experiment here:
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anybody help please again •_•
Answer:
i am not to sure but i think its 5/13 or 5/40
P(A) = 8/15
P(B) = 6/15
P(A ∩ B) = 1/5
Find P(A U B)
4/15
11/15
1/15
2/15
Answer:
1/15
Step-by-step explanation:
Answer:
Step-by-step explanation:
1/15
Sound will travel fastest in air at _____.
Answer: 15 degrees Celsius
Step-by-step explanation:
Sound travels fastest usually at 25 degrees Celsius when the air is hotter as physics professor Kim strong stated
• correct me if I'm wrong
The area of a circular field is 16π square miles. What is the diameter of the field in miles.
Answer:
8
Step-by-step explanation:
1. Divide the area (in square units) by Pi (approximately 3.14159).
2. Take the square root of the result. This is the radius.
3. Now double the radius to get the diameter
Answer:
8 miles
Step-by-step explanation:
When given area, we use the formula of 2√(area/pi). It may look slightly complex, but in this equation, we are fortunate that pi is in our area. This essentially cancels out the pi in the equation, simplifying it to √(16), which is simply 8!
Hope this helps you!
Can someone pls help me
Answer:
A = Π R^2 = 3.14 * 6^2 m = 113 m^2 area of entire circle
102/360 = a = area of sector
a = 102/360 * 113 m^2 = 32 .0 m^2
Which expression is equivalent to 24 1/3?
Answer:
2∛3
Explanation:
∛24=(∛8)(∛3)=2∛3
Hopes This Helps :)
Which of the following could NOT
be represented by |-121?
A. A balloon rises 12 feet in the air.
B. The stock market gains $12 in a
day.
C. A town lies 12 feet below sea
level.
D. Adam received a gift for
Answer:
C
Step-by-step explanation:
|-12|= 12
this means that it represents a positive number. Each answer represents a positive number other than the town that lies -12 feet below sea level. (sorry if I'm wrong)
What does point G represent in the context of this situation?
Answer:
The famous point G that everyone enjoys... of course it represents a point of a graph! What else could it be? G stands for graph.
I WILL MARK BRAINLIEST IF SOMEONE ACTUALLY KNOWS THIS ITS NOT 72
Answer:
D Trust Me
Step-by-step explanation:
Answer:
I is D
Step-by-step explanation:
I just counted by to on all of the squares and got 52
What is the value of x?
We know that the triangle is an isosceles triangle because the base angles are the same.
=> 4x - 1 = x + 5=> 4x - x = 1 + 5=> 3x = 6=> x = 6/3 = 2Conclusion:Therefore, the answer is 'x = 2'
Hoped this helped.
[tex]BrainiacUser1357[/tex]
33 + 55 = __ (3+5)
Help me with this
Answer:
11 I think and hi how are u ::):):):):):):):):):):):):):
What happend when matter condenses??
Plzz Answer???
Answer:
in condensation, gas turns into a liquid
Answer:
Condensation is when a gas becomes a liquid. ... In condensation, matter changes from a gas to a liquid. All matter is made of tiny moving particles called molecules. Evaporation and condensation happen when these molecules gain or lose energy.
The polynomial x3 4x2 â€"" 9x â€"" 36 has 4 terms. Use factoring by grouping to find the correct factorization. (x2 9)(x 4) (x2 â€"" 9)(x â€"" 4) (x2 9)(x â€"" 4) (x2 â€"" 9)(x 4).
The factorization of the expression by grouping is [tex]P(x) = (x - 3)(x + 3)(x +4)[/tex]
The polynomial function is given as:
[tex]P(x) = x^3 + 4x^2 - 9x - 36[/tex]
Factorize the given expression.
[tex]P(x) = x^2(x + 4) - 9(x +4)[/tex]
Factor out x + 4
[tex]P(x) = (x^2 - 9)(x +4)[/tex]
Express 9 as the square of 3
[tex]P(x) = (x^2 - 3^2)(x +4)[/tex]
Apply the difference of two squares
[tex]P(x) = (x - 3)(x + 3)(x +4)[/tex]
Hence, the factorization of the expression by grouping is [tex]P(x) = (x - 3)(x + 3)(x +4)[/tex]
Read more about factorization at:
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Tyler has 485 pieces of candy. He has 5 bags that he wants to fill the candy in. How many
pieces of candy, will be in each bag? (Solve using the standard algorithm).
Answer:
97 in each bag
Step-by-step explanation:
485÷5=97
97*5=485
Answer:
There would be 97 pieces of candy in each bag.
(used standard algorithm, not sure how to put that in here.) Tip: use 485 divided by 5 in long division. If you do not know how, look up the steps and write it down.
Evaluate the expression 6^3 + 20
Find the perimeter of the window to the nearest tenth 10cm
Answer:
54 cm
Step-by-step explanation:
compare the following number :-
▪︎ 3 × 10¹² and 4 × 10¹¹
I need a well explained solution,
pls not from any other websites
thx for answering~~
Answer:
[tex] {10}^{12} = 1000000000000[/tex]
Then ,[tex]3 \times {10}^{12} = 3000000000000[/tex]
And[tex] {10}^{11} = 100000000000[/tex]
Then ,[tex]4 \times {10}^{11} = 400000000000[/tex]
Step-by-step explanation:
• Hence , 3 x 10 to the power 12 is greater .The value of 3 × 10¹² is greater than 4 × 10¹¹
The standard scientific expression is given as A * 10^n
Given the scientific values 3 × 10¹² and 4 × 10¹¹, we need to compare the values.The value of their powers will determine which of the values is greater or less.For the notation 3 × 10¹², we can see that the power is 12 while for the notation 4 × 10¹¹, the power is 11. Since 12 is greater than 11, hence the value of 3 × 10¹² is greater than 4 × 10¹¹
Learn more on scientific values here: https://brainly.com/question/1522308
Eric scored 95% on his math test. He got 19 problems correct. How many questions were on the test?
i'm pretty sure it's 20.
How is Maths used in Construction??
Can someone help me with 10 - 15 pages
Answer:
They measure the area, volume, length, and width, in construction
10 - 15 = -5
Step-by-step explanation:
HOPE THIS HELPED
In which situation below would you want to use the Explicit Formula instead of the Recursive Formula?
a. Find the 100th term when the first term is -3 and the common difference is 4.
b. Find the 3rd term when the first term is 2 and the common difference is 5.
c. Find the 7th term when the first term is -1 and the common difference is 10.
d. Find the 5th term when the first term is 7 and the common difference is -2.
Answer:
Find the 100th term when the first term is -3 and the common difference is 4.
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
Find the 100th term when the first term is -3 and the common difference is 4. I took the test and got 100 percent.
71 points what is 12x 8=...........................96
Answer: 12 x 8 = 96
Step-by-step explanation:
Thanks c:
Find the value of y.
Pls help with question 3 and below
Step-by-step explanation:
now find the area of triangle and add with the area of square and subtract with the area of circle
hope it will help you
The lines 3y + 1 = 6x + 4 and 2y + 1 = x - 9 are ?
Answer:
lines are not perpendicular or parallel
Please help I don't understand i'm in the lowest class?
Answer:
Step-by-step explanation:
In triangle ABC, if angle A + angle B = 5 angle C, find angle C
Answer:
30
Step-by-step explanation:
A + B = 5C
A + B + C = 180
since A + B is 5C we can rewrite with 5C
5C + C = 180
6C = 180
c = 30