Answers
the answer is 81
Related Questions
NEED HELP PLZZ!!! Question 1. What are the dimensions of the matrix? {6,2,8,3}
A:1x4
B:1x1
C:4x4
D:4x1,
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_____
My calculator might recognize this as a vector (or a list of 4 elements). It would like double brackets to make it a matrix: [[6,2,8,3]] with 1 row. My math program would treat it as either a 1x4 vector or a 4x1 vector depending on the expression it might get used in.
You need to consult your text or other curriculum material to determine the intended meaning of this expression.
Regular Polygons multiple choice
I think it's a - 60 but I'm not sure
Answers
A cylinder has a radius of 12 m and a height of 9 m.
What is the exact volume of the cylinder?
108π m³
216π m³
972π m³
1296π m³
Answers
V = π(12)²(9)
V = 1296π³
So the correct answer is 1296π³
I'm pretty sure its 1296π m³ Hope this helps!
How many points did the team score in the 11th game and why?
Answers
The team's point total after 11 games was 11*33 = 363.
The team scored 13 points in game 11.
A number written below and to the right of a chemical symbol in a formula is called a
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a system of two equations contains one quadratic equation and one linear equation. the quadratic system of the equation is y=x^2+5x-9. the solutions of the system are (3,15) and (-1,-13). what is the linear equation in the system?
Help if you don't mind!
Answers
when x=3, y=15, so 15=3m+b
when x=-1, y=-13, so -13=-m+b
solve the system of these two equation, you get m=7, b=-6
so the linear equation is y=7x-6
steve paid 10% tax on a purchase of 40$ . select the dollar amount of the tax ad the total dollar amont steve paid on the number line.
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The total paid is 40 + 4 = $44
solve the equation x-5=15 and state Euclid's axiom used
Answers
[tex]x = 15 + 5[/tex]
[tex]x=20[/tex]
If equals are added to equals, the the remainders are equal.
Hope this helps !
Photon
Find the values of a and b for which LMNO is a parallelogram.
A.
a = 50, b = 60
B.
a = 60, b = 50
C.
a = 50, b = 70
D.
a = 70, b = 50
Answers
Solve f(2) for f(x)=x-51
f(2)= [?]
Answers
______________________________________________
" f(2) = 49 " .
______________________________________________
Explanation:
______________________________________________
Given: " f(x) = x – 51 " ; Find " f(2) " ;
→ Plug in "2" for "x" to solve for " f(2)" ;
→ f(2) = 2 – 51 = - 49 ;
______________________________________________
The answer is: " - 49" .
______________________________________________
" f(2) = 49 " .
______________________________________________
As 25 foot building casts a 8 foot shadow. How tall is the building that casts a 20 foot shadow at the same time?
Answers
What is a width of a rectangular prism with a length of 13 ft , vouime of 11,232 cubic feet, and height of 36 ft.?
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I hope this helps!
Gisele trains 7 days per week for a biathlon. She covers a total of 20 miles cycling and running each day. Gisele cycles a total of 105 miles each week, and runs a certain number of miles per week. If she cycles the same number of miles each day and runs the same number of miles each day, the equation 1/7(105+r)=20 represents the situation. Which describes the solution, r , to this equation?
Answers
To solve the equation, it was first required to get rid of the fraction by multiplying both sides by 7 and then to isolate r, the running miles, you subtract 105 from both sides resulting in Gisele running 35 miles per week.
Explanation:The question is asking to find the number of miles Gisele runs each week, which is represented by the variable r in the equation. We start with the equation: 1/7(105 + r) = 20. This equation is derived from the fact that Gisele covers a total of 20 miles each day, for 7 days, and that total comprises both her cycling and running mileages. If she cycles 105 miles each week, then the distance she runs is the remaining part of those total 20 miles she covers each day. We multiply both sides of the equation by 7 to get rid of the fraction: 105 + r = 140. Now, if we subtract 105 from both sides of the equation, we get the solution for r as; r = 140 - 105 = 35 miles. Hence, Gisele runs 35 miles each week.
Learn more about Algebraic Equations here:https://brainly.com/question/953809
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A rectangle is 13 yards long and 23 yards wide. What is the area of the rectangle? Enter your answer in the box as a fraction in simplest form. $$ yd2
Answers
[the area of the rectangle]=L*W
L=1/3 yd
W=2/3 yd
[the area of the rectangle]=1/3*2/3---------> 2/9 yd²
the answer is 2/9 yd²
Answer:
2/9
Step-by-step explanation:
What is the value of n?
Answers
The product (4 cm)*(6 cm) is equal to the product (3 cm)*(n).
The equation of line A is y = 7x + 12. Line B is perpendicular to line A and passes through the point . What would be the solution to the system of equations represented by line A and line B?
Answers
The solution to the system of equations involving line A (y = 7x + 12) and a perpendicular line B passing through a given point involves finding the negative reciprocal of the slope of line A for line B, using the point-slope formula to get line B's equation, and solving the system to find their point of intersection.
Explanation:The question revolves around finding the equation of line B, which is perpendicular to line A (y = 7x + 12) and passing through a given point, then solving the system of equations formed by lines A and B. First, we identify that the slope of line A is 7. Since line B is perpendicular to line A, its slope will be the negative reciprocal of 7, which is -1/7. Assuming the point it passes through is provided in the question, we can use the point-slope formula y - y1 = m(x - x1) to find the equation of line B. After determining the equation of line B, we solve the system of equations represented by lines A and B to find the point of intersection, which will be the solution to the system.
To solve the system of equations, we would set the equations equal to each other and solve for one variable, then substitute back to find the other variable. This process involves algebraic manipulation such as substitution or elimination method. The final solution will be the coordinates (x,y) where both lines intersect.
Adeeb bought 5 oranges and 15 apples from the farmer's market. The equation 5r+15a=10.5 represents the amount of money he spent. Faye bought 12 oranges and 11 apples, represented by the equation 12r+11a=11.45 . What was the cost of each apple
Answers
cost of an apple = a
Adeeb bought;
amount of oranges - 5
amount of apples = 15
the equation for the amount he spent
5r + 15a = 10.5
Faye bought
oranges - 12
apples - 11
the equation for the amount he spent
12r + 11a = 11.45
set of simultaneous equation
5r + 15a = 10.5 ---> 1)
12r + 11a = 11.45 ---> 2)
divide by the first equation by 5
r + 3a = 2.1--> 3)
Multiply third by 12
12r + 36a = 25.2 ---> 4)
subtract 2nd equation from the 4th
25a = 13.75
a = 0.55
substituting a = 0.55 in 3rd equation
r + 3*0.55 = 2.1
r = 2.1 - 1.65
r = 0.45
price of an orange = 0.45
price of an apple = 0.55
Can someone solve this and show your work
g=6x
Solve for X
Answers
to solve for x divide both sides by 6
x = g/6
The owner of a shop bought a scarf at the wholesale price of $8.00 and marked it up by 300%. What is the selling price?
Answers
What is the value of the function, then determine if the graph opening up or down f(x)=-5(x+7)^2+6?
A. a= -5, opens down
B. a= -5, opens up
C. a= 7, opens up
D. a= 7, opens down
Answers
_____
When the coefficient of x^2 is negative, the graph opens down.
Polygon ABCD has vertices A(0, 2), B(0, 8), C(7, 8), and D(7, 2). What is polygon ABCD and its perimeter? (Hint: Draw the polygon on the coordinate plane and find the slopes of each side.)
A. rectangle; P = 26 linear units
B. square; P = 42 units2
C. parallelogram; P = 42 linear units
D. trapezoid; P = 26 linear units,
Answers
Answer:
Option A.
Step-by-step explanation:
The vertices of Polygon ABCD are A(0, 2), B(0, 8), C(7, 8), and D(7, 2).
Plot all vertices on the coordinate place.
If a line passes through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex], then the slope of the line is
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
First we need find the slope of each sides, using the above formula.
[tex]m_{AB}=\frac{8-2}{0-0}=\infty[/tex]
[tex]m_{BC}=\frac{8-8}{7-0}=0[/tex]
[tex]m_{CD}=\frac{8-2}{7-7}=\infty[/tex]
[tex]m_{AD}=\frac{2-2}{7-0}=0[/tex]
The slope of vertical lines is ∞ and slope of horizontal line is 0. It means sides AB and CD are vertical lines and sides BC and AD are horizontal lines.
Vertical and horizontal lines are perpendicular to each other. It means all interior angles of the polygon are right angles.
From the below figure it is clear that
[tex]AB=6[/tex]
[tex]BC=7[/tex]
[tex]CD=6[/tex]
[tex]AD=7[/tex]
Opposite sides are equal and interior angles are right angles, so the polygon is a rectangle.
Perimeter of the polygon is
[tex]Perimeter=AB+BC+CD+AD[/tex]
[tex]Perimeter=6+7+6+7=26[/tex]
Perimeter of polygon ABCD is 26 linear units.
Therefore, the correct option is A.
Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.
Answers
cos(22)=x/11
.927=x/11
X=10.199
Under which market structure does a firm have negligible influence over product pricing
Answers
Perfect competition describes a market structure, where a large number of small firms compete against each other. In this type of market a single firm does not have any significant market power. As a result the industry as a whole produces the socially optimal level of output, because none of the firms have the ability to influence market prices. The idea of perfect competition is built on a number of assumptions which includes: all firms maximize profits, there is free entry and exit to the market, all the firms sell completely identical goods and there are no consumer preferences. This is an ideal market.
Answer:
perfect competition
Step-by-step explanation:
because i did the test.
Name the sets of numbers to which -1/2 belongs
A.integers,rational numbers
B.whole numbers,natural numbers, integers
C.whole numbers,integers,rational numbers
D.rational numbers
Answers
Simplify 3 ∙ 2x. What is the coefficient?
Answers
how can you eliminate fraction from each side of the equation to make finding the solution easier 1/2(x-4)=1/3x+2
Answers
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The above approach always works. You likely have been told to multiply by the least common denominator, which in this case is the same thing.
If you don't take the trouble to find the least common denominator, at some point you will be factoring out a common factor. (You may be doing that anyway.)
1/2(x-4)=1/3x+2
3(x -4) = 2x +12
x = 24
Calculate the monthly finance charge based on the following data: Average daily balance = $40.00 Daily periodic rate = 0.06% (state as a decimal) Days in cycle = 25
Answers
This is calculated by multiplying the daily balance by the daily rate (as a decimal) and then multiplying by the number of days in the billing cycle.
0.06%=0.06/100 = 0.0006
40(0.0006)(25) = 0.6 or $0.60.
Answer: 60 cents
Step-by-step explanation:
What fraction of the word, "Supercalifragilisticexpialidocious" has the letter 'i' in it?
Answers
So the fraction is 7/34 <<<<====
The fraction of the word 'Supercalifragilisticexpialidocious' that has the letter 'i' is 7/34, which is already in its simplest form.
The word 'Supercalifragilisticexpialidocious' contains 34 letters. To find what fraction of this word has the letter 'i' in it, we first need to count how many times the letter 'i' appears. The letter 'i' appears 7 times in the word. Therefore, the fraction of the word that has the letter 'i' in it is 7/34.
It is important to note that this fraction can be simplified. However, since both 7 and 34 are prime numbers with respect to each other (they have no common factors other than 1), the fraction 7/34 is already in its simplest form.
5x2=5x^2 4x2+4x^2
1. What values of a, b, and c would you use in the quadratic formula for the following equation? 5x2+9x=4
2. attachment
3. What are the approximate solutions of 2x2-x+10=0?
4. Solve the equation using the quadric formula. 4x2+3x-10=0
5. Solve the equation using the quadric formula. -x2+27=6x
6. Which method is the best method for solving the equation? 8x2-13x+3=0
7. How many solutions are there for 5x2+7x-4=0?
8. The perimeter of a rectangle is 54 cm. The area of the same rectangle is 176 cm2. What are the dimensions of the rectangle?
Answers
2.) C
3.) No solution
4.) x=-2, x=1.25
5.) x=-9, x=3
6.) quadratic formula
7.) 2
8.) 11cm by 16cm
100% for The Quadratic Formula and the Discriminant practice
1. The equation 5x^2+9x=4, can be rewritten as 5x^2+9x-4=0, where a=5 (the coefficient of the quadratic term), b = 9 (the coefficient of the linear term) and c = -4 (the independent term).
2. No attachment is shown.
3. To use the quadratic formula, the coefficients are: a = 2, b = -1 and c = 10. However, the discriminant, i. e., b^2 -4(a)(c) is negative, therefore, there is no real solution.
4. You have to use the quadratic formula, with a = 4, b = 3 and c = -10, as follows:
[tex]x = \frac{-b \pm \sqrt{b^2 - 4(a)(c)}}{2(a)} [/tex]
[tex]x = \frac{-3 \pm \sqrt{3^2 - 4(4)(-10)}}{2(4)} [/tex]
[tex]x = \frac{-3 \pm \sqrt{169}}{8} [/tex]
[tex]x_1 = \frac{-3 + 13}{8} [/tex]
[tex]x_1 = \frac{5}{4} [/tex]
[tex]x_2 = \frac{-3 - 13}{8} [/tex]
[tex]x_2 = -2 [/tex]
5. Rewriting the formula, so that all the terms are on one side and ordering the polynomial expression, gives: -x2-6x+27=0. Here a = -1, b = -6 and c = 27. Using the quadratic formula gives
[tex]x = \frac{-b \pm \sqrt{b^2 - 4(a)(c)}}{2(a)} [/tex]
[tex]x = \frac{6 \pm \sqrt{6^2 - 4(-1)(27)}}{2(-1)} [/tex]
[tex]x = \frac{6 \pm \sqrt{144}}{-2} [/tex]
[tex]x_1 = \frac{6 + 12}{-2} [/tex]
[tex]x_1 = -9 [/tex]
[tex]x_2 = \frac{6 - 12}{-2} [/tex]
[tex]x_2 = 3 [/tex]
6. When the second grade polynomial has all of its coefficients (a, b and c) different than zero, like this case, the best method for solving the equation is the quadratic formula .
7. When the discriminant is greater than zero, there are two different solutions and when it is equal to zero, it has one double solution.
The discriminant for this case is 7^2 - 4(5)(-4) = 129. So, there are two different solutions .
8. Let's call the sides of the rectangle a and b.
perimeter formula: 2a + 2b = 54 cm (eq. 1)
area formula: (a)(b) = 176 cm2 (eq. 2)
Isolating a in equation 1, gives (units are omitted):
2a + 2b = 54
2a = 54 - 2b
a = 27 - b (eq. 3)
Replacing equation 3 into equation 2, gives (units are omitted):
(a)(b) = 176
(27 - b)(b) = 176
-b^2 + 27b - 176 = 0
Using quadratic formula, we get
[tex]x = \frac{-27 \pm \sqrt{27^2 - 4(-1)(-176)}}{2(-1)} [/tex]
[tex]x = \frac{-27 \pm \sqrt{25}}{-2} [/tex]
[tex]x_1 = \frac{-27 + 5}{-2} [/tex]
[tex]x_1 = 11 [/tex]
[tex]x_2 = \frac{-27 - 5}{-2} [/tex]
[tex]x_2 = 16 [/tex]
Then, there are two possible values for b, 11 cm and 16 cm. Replacing these values into equation 3 gives:
a = 27 - 11 = 16 cm
a = 27 - 16 = 11 cm
Therefore, the two sides are 11 cm and 16 cm long, despite their names.
Mr. Jimenez deposited money into an account in which interest is compounded quarterly at a rate of 2.6%.
How much did he deposit if the total amount in his account after 4 years was $7160.06, and he made no other deposits or withdrawals?
Formula Is : A = P ( 1 + r/n ) ^ n * t
Answer Choices:
a. $6455
b. $6798
c. $6887
d. $6977
Answers
A is the amount after t years, P is the amount originally deposited, r is the interest rate, and n is how often the interest is compounded per t.
Plug in what we know and solve for P:
[tex]7160.06=P(1+ \frac{0.026}{4})^{(4)(4)} [/tex]
P = [tex] \frac{7160.06}{(1+ \frac{0.026}{4} )^{16}} = 6454.999 [/tex]
Answer:
Option a. [tex]\$6,455[/tex]
Step-by-step explanation:
we know that
The compound interest formula is equal to
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
[tex]t=4\ years\\ A=\$7,160.06\\ r=0.026\\n=4[/tex]
substitute in the formula above and solve for P
[tex]7,160.06=P(1+\frac{0.026}{4})^{4*4}[/tex]
[tex]7,160.06=P(1+\frac{0.026}{4})^{4*4}[/tex]
[tex]P=7,160.06/1.109227=\$6,455[/tex]