Answer:
Assessment started: undefined.
Item 1
The floor of a dollhouse is shaped like a rectangle with a length of 34 foot and a width of 512 foot. Use this model to determine the floor's area.
What is the floor's area?
Enter your answer as a fraction in simplest form by filling in the boxes.
Step-by-step explanation:
What is the slope of the line that contains these points?
x 12 13 14 15
y -4 , 2 8 14
Δ⊕∞∵∴α∞→←⇅≡∝αβΔωπ
Perform the indicated operations:
-1
4
-4
4
-4
-1
6
-7
-4
-7
-4
2R2 + R3 R3
-4
6
2
-4
8
2
6
-4
30
Answer:
Step-by-step explanation:
The solution is, resulting matrix:[tex]\left[\begin{array}{ccc}4&-1&-4\\-4&6&2\\0&8&10\end{array}\right][/tex][tex]\left[\begin{array}{ccc}-7\\-4\\22\end{array}\right][/tex].
What is Matrix?In mathematics, a matrix is a rectangular array or table of numbers, symbols, or expressions, arranged in rows and columns, which is used to represent a mathematical object or a property of such an object. For example, is a matrix with two rows and three columns.
here, we have,
given that,
We are given a matrix,
Let A=[tex]\left[\begin{array}{ccc}4&-1&-4\\-4&6&2\\8&-4&6\end{array}\right][/tex]
and B=[tex]\left[\begin{array}{ccc}-7\\-4\\30\end{array}\right][/tex]
We have to find the resulting matrix after performing given row operations
2R2 +R3 ⇒ R3
Apply
we get,
:A=[tex]\left[\begin{array}{ccc}4&-1&-4\\-4&6&2\\0&8&10\end{array}\right][/tex]
and, B=[tex]\left[\begin{array}{ccc}-7\\-4\\22\end{array}\right][/tex]
Hence, resulting matrix
[tex]\left[\begin{array}{ccc}4&-1&-4\\-4&6&2\\0&8&10\end{array}\right][/tex][tex]\left[\begin{array}{ccc}-7\\-4\\22\end{array}\right][/tex]
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❗️URGENT NEED ASAP❗️
Given functions,
f(x) = -5x – 14 g(x) = -02 + 9x - 1
find f(9) + g(-2)
Answer:
Step-by-step explanation:
❗️URGENT NEED ASAP❗️
Given functions,
f(x) = -5x – 14 g(x) = -02 + 9x - 1
find f(9) + g(-2)
Answer:
Functions! Nice.
Step-by-step explanation:
This is a pretty simple concept.
What it wants you to do is to input those values inside the parentheses(9 or -2) into those equations for x. Then, you will have to add those values that you get.
If you didn't understand, watch and learn!
[tex]for x=9\\f(9)=-5(9)-14\\f(9)=-59\\[/tex]
Now try to do that for the second equation, but this time, have x as -2.
(I also can't solve the last one because I can't make sense of the equation. What is 02?)
Stay Safe!
P.S. When you find the answer to that second one, just add it to the first answer, and you'll get the final answer.
Which of these expressions shows like terms?
Your answer:
3x +3y
2x +2x^2
2x+3x
2x^2 +3y^2
Please help! Need Now!
Answer:
C
Step-by-step explanation:
2x+3x Have the same variable. Therefore they both have like terms
When solving an equation, Henry gets to the last line of hi work and is left with “3=3”. What does this mean?
scientific notation for 7×10^9
Answer:
7,000,000,000
Step-by-step explanation:
7×10^9
The number after ten is how many zeros you put.
Answer: 7000000000
Step-by-step explanation: 7x
1000000000
What is the distance between the points (2, 3) and (5, -4)?
Answer:
7.6158
Step-by-step explanation:
-1
A line's y-intercept is 0, and its slope is
20
What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Submit
Answer:
y=20x
Step-by-step explanation:
do do I intercept a zero, so you don't have a "b"
The slope is 20. that's pretty self-explanatory
Simplify the following expression.
5+((2*5) -7)^2 -9
Your answer:
1
5
-4
16
(HELP PLEASE!!!)
Answer:
the answer is 5
Step-by-step explanation:
Yaneev thinks of a number y. He subtracts three from the number, then doubles it. What is the final result, in terms of y?
Answer:
y = 6
Step-by-step explanation:
2(y - 3) = y
2y - 6 = y
y = 6
Hope that works out :)
Select the correct answer.
Mel created a scatter plot and drew a line of best fit, as shown
Answer:
C. y = 2/3x + 6
Step-by-step explanation:2/3 is the slope and 6 is the y intercept.
help me pleaseeeeeeeee help nowww
Answer:
IT'S A. HEHEHEHEHEHEHE
The number of violent crimes committed in a day possesses a distribution with a mean of 2.8 crimes per day and a standard deviation of 4 crimes per day. A random sample of 100 days was observed, and the sample mean number of crimes for the sample was calculated. Describe the sampling distribution of the sample means.
Answer:
The distribution is approximately normal with mean = 2.8 and standard error = 0.4
Step-by-step explanation:
We are given;
Mean; μ = 2.8
Standard deviation; σ = 4
Sample size; n = 100
Now, the central limit theorem states that the sample mean with a sample size(n) from a population mean (μ) and population standard deviation(σ) will, for large value of n, have an approximately normal distribution with mean μ and standard error as (σ/√n)
The sample size is 100 and thus it's very large because it's bigger than minimum of 30 for approximate distribution.
Thus, SE = (σ/√n) = 4/√100 = 4/10 = 0.4
Thus,from the central limit theorem I described, we can say that the distribution is approximately normal with mean = 2.8 and standard error = 0.4
What is the value of x in the equation 18-37x--42x+0.37
Answer:4.48
Step-by-step explanation:
Cuz I sed so. (70% chance of being wrong, so just use 4.48099829836)
Can someone pls help me I’m really struggling
help!!!!!!!!!!!!!!!!!
Answer:
5.2
Step-by-step explanation:
√27 = 5.1962 (5s.f.) = 5.2 (2s.f.)
Answer:
i hope 5.2 is the answer
Step-by-step explanation:
i m not sure
I got bullied guys *drop mic 100000000000x times till faints*
Step-by-step explanation:
1-800-273-8255 my dude
Answer:
I think you should tell someone you trust that you got bullied. I'm so sorry, I know people that got bullied. We'll fight this together.
Messi scored one goal every 82 minutes.How many goals did he score if he played for 4453 minutes in a season.
Answer:
Step-by-step explanation:
I’m not sure but I need points
Answer:
54
Step-by-step explanation:
divide
What figure models 6 divided by 3/2?
(6 divided by 3/2 equals 4)
NEEDS HELP NOW!
BRAINLIEST!
Someone help I’ll give brainlist lol
If one quart is the same amount as 2 pints, how many pints are in 8 quarts
Answer:
16 pints
Step-by-step explanation:
Answer:
Step-by-step explanation:
1:2
1 q to 2 p
8q to 16 p or 8:16
A student has some $1 bills and $5 bills in his wallet. He has a total of 13 bills that are worth $45. How many of each type of bill does he have?
Answer:
8 $5 bills and 5 $1 bills
Step-by-step explanation:
5x8=40, which would be $40
1x5=5, which would be $5
$40+$5=$45
hope this helps! :)
Answer:
it's not possible. I've tried every way, r these the right amounts?
Write an equation of the line that passes through a pair of points:
(-3,1). (-2,-5)
Answer:
[tex]y=-6x-17[/tex] (B)
Step-by-step explanation:
[tex]y=mx+b\\m=\frac{y_{2}-y_{1} }{x_{2} -x_{1} } = \frac{1--5}{-3--2} = \frac{6}{-1} = -6\\y=-6x+b\\[/tex]
Plug in one of the two points for X and Y
(-3,1)
[tex]1=-6(-3)+b\\1=18+b\\b=-17\\\\y=-6x-17[/tex]
Totsakan school is selling tickets to a choral performance on the first day of ticket sales the school sold 10 senior tickets and 1 child ticket for a total of $85 the school took in $75 on the second day by selling 5 senior citizens tickets and 7 child tickets find the price of a senior ticket and the price of a child ticket
Given :
On the first day of ticket sales the school sold 10 senior tickets and 1 child ticket for a total of $85 .
The school took in $75 on the second day by selling 5 senior citizens tickets and 7 child tickets.
To Find :
The price of a senior ticket and the price of a child ticket.
Solution :
Let, price of senior ticket and child ticket is x and y respectively.
Mathematical equation of condition 1 :
10x + y = 85 ...1)
Mathematical equation of condition 2 :
5x + 7y = 75 ...2)
Solving equation 1 and 2, we get :
2(2) - (1) :
2( 5x + 7y - 75 ) - ( 10x +y - 85 ) = 0
10x + 14y - 150 - 10x - y + 85 = 0
13y = 65
y = 5
10x - 5 = 85
x = 8
Therefore, price of a senior ticket and the price of a child ticket $8 and $5.
Hence, this is the required solution.
how would you solve
y - 4 = 3
Answer:
Y = 7
Step-by-step explanation:
You would add 4 to both sides to cancel out the -4. That leaves y by itself equaling 7.
The solution of the equation y – 4 = 3 will be 7.
What is the solution of the equation?The solution of the equation means the value of the unknown or variable.
The equation is given below.
y – 4 = 3
Add 4 on both sides, we have
y – 4 + 4 = 3 + 4
y = 7
More about the solution of the equation link is given below.
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Factor f(x)=x3+x2-17x+15 if f(3) =0
Answer:
Step-by-step explanation:
x^3+x^2-17x+15 replace x with 3
3^3+3^2-17(3)+15 =0
27+9-51+15 combine
=0
What type of angles are these? Corresponding, vertical, alternate interior, alternate exterior, or adjacent angles.
Answer:
im 90% sure its alternate exterior
Step-by-step explanation:
2089+2089? HHHHHEEELLLLPPP PLZ first to answer get brainlyset
Answer:
4178
Step-by-step explanation:
Answer:
4178
Step-by-step explanation:
THANK YOU SO MUCH I NEEDED POINTS Brainliest please!!!!
The hypotenuse of a right triangle is 8.2 inches long and one of the legs is 6.4 inches long. What is the length of the other leg?
Answer:
5.1
Step-by-step explanation:
To solve this equation I will use the formula a²+b²=c². For these terms I will represent the missing value as the variable a. The equation should be renewed as this: a²+6.4²=8.2², simplified: a²+40.96=67.24. I will now subtract 40.96 from 67.24 to get "a" by itself, as of which now I have a²=26.28. Next I square root both values: √a² =√26.28. The final answer is "a"= 5.1264022471905, otherwise, when rounded, "5.1". Hopefully this helps. A word of advice, when a problem gives you two values for a triangle, always refer to the equation a²+b²=c², as you will always find the missing value. Also remember that the legs cannot be of greater value than the hypotenuse which is the diagonal line. The hypotenuse is always "c".
I NEED HELP AGAIN PLEASE!!
Answer:
A
Step-by-step explanation: