Answer:
Step-by-step explanation:
The answer to your question is 7n ≤ 28
Data
Cost of 1 bag = $7
The maximum amount of money spent = $28
n = number of 3-pound bags
Process
- We know that the amount spent must be at most = $28, so we use the symbol ≤.
- The money spend is the price of one bag times the number of bags bought.
- Then the inequality is
7n ≤ 28
If the payans make a 15% down payment of $ their monthly payment will be $
Answer:
If the Payans make a 15% down payment of $1,237.18, their monthly payment will be $35.
Hope this helps!
The diagram shows squares arranged around the edge of a right triangle. What is the area of square B
Step-by-step explanation:
take the right triangle
15^2 = 9^2 + x^2
225 = 81 + x^2
x = 12
area of square b = 144
Which sequences are geometric? Select three options.
Answer:
there are no sequences pls edit or repost so i can help : )
A robot can complete 5 tasks in 3/4
hour. Each task takes the same amount of time.
a. How long does it take the robot to complete one task?
b. How many tasks can the robot complete in one hour?
Answer:
[A] 9 minutes to complete one task
[B] 6 tasks completed, with 2/3rds of another task completed.
Step-by-step explanation:
5 tasks in 45 mins is equal to one task in 9 minutes
60 minutes in an hour, 9 minutes per task = 6 tasks completed, with 2/3rds of another task completed.
Please help me find the missing angle measures. :(
Answer:
M<1 = 120° therefore, M<7 = 120°
M<1 = 120° therefore, M<5 = 120°
Need help asap!!!!
i will mark brainliest
Answer:
41
Step-by-step explanation:
Answer:
the value of x is 41°
Step-by-step explanation:
x + 76°+63° = 180°{being straight angle}
or, x+139° = 180°
or, x = 180° - 139°
or, x = 41°
what does it mean to write an "exact answer?"
Answer:
To write the answer without rounding or changing it in any way
Step-by-step explanation:
This is what exact means
Sandra brings 6 dolls to her grandma's house. These dolls represent 60% of her collection, as shown in the diagram. What is the total number of dolls in Sandra's collection.
Answer:
10
Step-by-step explanation:
60% of 10 is 6, so if 6 is 60% then 100% of them would be 10
estimate -12 4/9 multiplied by 5 7/8
A. -72
B. 78
C. -78
D. 72
ANSWER QUESTION FOR A BRAINLIEST ANSWER
An airplane on autopilot took 5 hours to travel 3,475 kilometers. What is the unit rate for kilometers per hour?
Here is 3 & 4 I NEED DONE ASAP!
Given matrices are from here
https://brainly.com/question/18267865
=====================================================
Problem 3
a)
B - C = DNE
We cannot subtract matrices of different sizes. Matrix B is 2x2 while C is 3x2. Both matrices must have the same number of rows, and they must also have the same number of columns. The matrices don't have to be square.
------------------------------
b)
[tex]A+B = \begin{bmatrix}-5 & 6\\7 & 4\end{bmatrix}[/tex]
You add the corresponding elements. For instance, in the top left corner we have -1+(-4) = -5. The other entries are treated in a similar manner.
------------------------------
c)
[tex]-2E = \begin{bmatrix}6 & -4 & 8\\-12 & 14 & -16\\-10 & -18 & 20\end{bmatrix}[/tex]
You get this from multiplying each entry in matrix E by -2. Eg: top left corner has -2*(-3) = 6
------------------------------
d)
[tex]CD = \begin{bmatrix}4 & 7 & 8\\ 1 & 3 & 4\\14 & 17 & 16\end{bmatrix}[/tex]
Matrix C has 3 rows and D has 3 columns. The final answer will be size 3x3
To generate each value in the answer matrix, you'll highlight rows of C to pair with columns of D. Then you'll multiply out the corresponding values, after which you add those products. This is done for every entry in the answer shown above.
For example, the first row of C is highlighted and the second column of D is highlighted. Those values pair up and multiply getting -1*(-1) + 2*3 = 1+6 = 7, which goes in the first row and second column of the answer matrix. The other entries are handled in a similar fashion.
------------------------------
e)
[tex]\det(B) = -46[/tex]
The 2x2 matrix determinant formula is [tex]\begin{vmatrix}a & b\\c & d\end{vmatrix} = a*d - b*c[/tex]
In this case, a = -4, b = 6, c = 5, d = 4.
------------------------------
f)
[tex]B^{-1} = \begin{bmatrix}-2/23 & 3/23\\ 5/46 & 2/23\end{bmatrix}[/tex]
Swap the top left and bottom right corners of matrix B. Change the sign of the other two corner values. Then multiply each entry by 1/d where d is the determinant found back in part (e) above. Be sure to reduce any fraction as much as possible.
=====================================================
Problem 4
Answers: x = 2 and y = -10
-----------------
Work Shown:
[tex]\begin{bmatrix}2x & 4\\-5 & -2\end{bmatrix}+\begin{bmatrix}3 & -7\\11 & y-1\end{bmatrix} = \begin{bmatrix}7 & -3\\6 & -13\end{bmatrix}\\\\\\\begin{bmatrix}2x+3 & 4+(-7)\\-5+11 & -2+(y-1)\end{bmatrix} = \begin{bmatrix}7 & -3\\6 & -13\end{bmatrix}\\\\\\\begin{bmatrix}2x+3 & -3\\6 & y-3\end{bmatrix} = \begin{bmatrix}7 & -3\\6 & -13\end{bmatrix}\\\\\\[/tex]
In the top left corners of each matrix, in line 3, we have 2x+3 = 7 which solves to...
2x+3 = 7
2x = 7-3
2x = 4
x = 4/2
x = 2
In the bottom right corners, we have y-3 = -13 which solves to....
y-3 = -13
y = -13+3
y = -10
A car manufacturer claims that the company’s newest model has a peak power of exactly 329 horsepower. Katherine is a reporter for an automotive magazine. She is testing the manufacturer's claim and says that the population mean peak power is less than the advertised amount. She measures the peak horsepower of 42 randomly selected cars of the new model. The sample mean is 327.74 horsepower with a standard deviation of 2.41 horsepower. Should Katherine reject or fail to reject the null hypothesis given the sample data below? H0:μ=329 versus Ha:μ<329 α=0.05 (significance level) t≈−3.39 with 41 degrees of freedom p-value<0.005
Answer: Katherine should reject the null hypothesis.
Step-by-step explanation:
We reject the null hypothesis when p-value is less than the significance level.
here, H0:μ=329 versus Ha:μ<329
α=0.05 (significance level)
p-value<0.005
so , we should reject the null hypothesis as p-value is less than the significance level.
Hence, Katherine should reject the null hypothesis.
Answer for Brainliest
1)7/4+5/8=
2)3/2+4/3=
3)2/3+10/7=
4)4-3/17
Answer: 1) 2.375
2) 2.833333333333333
3) 2.095238095238095
4) 3.823529411764706
Step-by-step explanation:
1)7/4+5/8=2.375
2)3/2+4/3= 2.833333333333333
3)2/3+10/7= 2.095238095238095
4)4-3/17= 3.823529411764706
herry whee Mathematics Diagnostic Assessment 35 + 6 7 9 At what position on the number line is the red dot located? OA. 53 OB. 86 O C. 33 OD. 43 .
Answer:
D
Step-by-step explanation:
That is the closest number from the sum of 35+6 35+7 35+9
determine whether the ordered pair is a solution of the linear equation. thanks in advance!!
Answer:
no
Step-by-step explanation:
because it is nor a solution
Find the exact value. (SIMPLIFY & RATIONALIZE all answers!)
Sin195
Answer:
[tex]\frac{\sqrt{2}-\sqrt{6} }{4}[/tex]
Step-by-step explanation:
sin(x)==cos(90-x)
cos(90-195)
cos(-105)
cos(105)
cos(105)= [tex]\frac{\sqrt{2}-\sqrt{6} }{4}[/tex]
write the percentage as a fraction in the lowest terms 7 1/4%=
28/4 or 7
Well, I looked it up. Ain't gonna lie
Find the equation of the line that is parallel to the line y = 3x + 1 and passes through
the point (1, 2).
(Show Work and steps)
Answer:
[tex]y=3x-1[/tex]
Step-by-step explanation:
lines that are parallel have the same gradient
using this fact we can create the equation:
[tex]y=3x+c[/tex]
and substitute in our values
[tex]2=3+c[/tex]
[tex]c=-1[/tex]
so the equation of the line is [tex]y=3x-1[/tex]
Show that ln(x^3 -4x) − ln(x^2 -2x)= ln(x + 2).
pls help
The Pythagorean theorem states that a² + b² = c² for a right triangle with leg lengths, a and b, and hypotenuse length, c.
The hypotenuse of a right triangle is 5 units long and has the points (3, 0) and (0, 4) as end points. One of the legs has length 3.
Use the Point and Segment tools to draw a right triangle at demonstrates the other leg length is 4.
Answer:
Step-by-step explanation:
Draw the third point at (0, 0). This would make the distance from (3,0) to (0,0) equal to 3, and the distance from (0,4) to (0,0) be 4.
What is the midpoint between
(-1,1) and (-5,12)
(-3, 23/2)
the picture i linked shows the step by step
28y^2 - 23y + 4 /28y^3 + 19y^2 - 20y
Answer:
42y^2 - 43y + 1/7y^3
Step-by-step explanation:
I need to know this very hard question!
Answer:
8 [tex]\frac{3}{4} \\[/tex]
Step-by-step explanation:
Going from left to right on the number line we see that k is between 8 and 9. So 8 will be your whole number. The number line is divided into 8 sections between each whole number and k is located 6/8 between 8 and 9.
This mixed number is 8 6/8. We can reduce the 6/8 to 3/4 by dividing by 2 on the top and bottom. So your final answer is 8 3/4.
Please solve with explanation 9 points
Step-by-step explanation:
try the option shown in the attachment, note, all the answers are marked with red colour.
Given that f(x) = 3x + 2 and h(x) = x3, find (h o f)(2).
Answer/Step-by-step explanation:
This is what we know...
f(x) = 3x + 2 and h(x) = 3x and that h(2) or x=2
Given that info we can input our values into the variables.
f(2) = 3(2) + 2
Now according to the Order of Operations, we should multiply next.
f(2) = 6 + 2
Now according to the Order of Operations, we should add.
f(2) = 8
I don't know if your question wants it as a ordered pair or not so ignore this if there is any of those. The answer in an ordered pair would be (2,8)
Now we have to do the other equation.
Input our values into the variables
h(2) = 3(2)
Now according to the Order of Operations, we should multiply next.
h(2) = 6
I don't know if your question wants it as a ordered pair or not so ignore this if there is any of those. The answer in an ordered pair would be (2,6)
Hope this Helps! :)
If you have any extra questions, comment them and I will try my best to answer!
-SGO
For each part, first decide which of the three methods sections will most easily enable you to sketch the surface. These are the generalized cylinder method, the surface of revolution method, and the method of slices (traces) for general quadric surfaces. Then apply that method to sketch the surface.
a. x^2 = 4z +8
b. x^2 - 4y^2 – 4z^2 = 16
c. y^2 = x^2 + 2z^2
Answer:
Step-by-step explanation:
We use these three methods
1. Generalized cylinder method
2. Surface of revolution method
3. Method of slices general quadratic
1. For A = x² = 4z + 8
We use the method of slices for general quadratic
2. X²-4y²-4z² = 16
We use the generalized cylinder method
3. Y² = z² + 2z²
We use surface of revolution
Please check attachment for answers
Translate the following expression:
5 less than 4 times a number(use n), squared
due in 1 hour
Step-by-step explanation:
[tex](4n - 5) {}^{2} [/tex]
4 times a number implies it's multiplied by 4
5 less is simply -5
and square all that to get (4n-5)²
This is my best guess
(HELP) What is the perimeter of the figure?
28 m
20 m
22 m
14 m
Answer:
20m
Step-by-step explanation:
Perimeter is the sum of all the sides.
Perimeter = 3+5+1+7+4 = 20m
If 4 gal of premium unleaded gasoline costs $15.04, how much would it cost to completely fill a tank whose capacity is 9-gal?
The cost to completely fill the tank is $
Answer:
$33.84 cents
Step-by-step explanation:
Given the following question:
4 gallons = 15.04
1 gallon = ?
How much for 9 gallons?
To find the answer we have to find how much one-gallon costs since we already know how much it costs for 4 gallons of this unleaded gasoline.
[tex]15.04\div4[/tex]
[tex]15.04\div4=3.76[/tex]
[tex]=3.76[/tex]
One gallon of this gasoline costs $3.76 now we need to find how much it costs for 9 gallons.
[tex]3.76\times9=33.84[/tex]
[tex]=33.84[/tex]
For nine gallons of gasoline it will cost you "$33.84 cents."
Hope this helps.
I need help please ASAP ?!!! ANYONE PLS HELP
Answer:
1. 3/6
2. 2/4
3. 4/6
4. 3/6
Step-by-step explanation:
multiple each fraction by the number of parts I pretty sure