Cost of 15 books = cost of 1 book x 15 = 200 x 15 = Rs 3000
Part B: If a cross section of the rectangular pyramid is cut perpendicular to the base, passing through the top vertex, what would be the shape of the resulting cross section? Explain your answer.
Answer:
A triangle.
Step-by-step explanation:
The plane would pass through opposite sloping faces of the pyramid and through the base; the shape formed is a triangle.
The first two steps in determining the solution set of the system of equations, y = x2 - 6x + 12 and y = 2x - 4
algebraically are shown in the table.
Step
Step 1
Step 2
Equation
x2 - 6x + 12 = 2x4
x2–8x+16=0
Which represents the solution(s) of this system of equations?
O (4,4)
O 64,-12)
0 (4, 4) and (44, 12)
O (-4, 4) and (4, 12)
Save and Exit
Neart
Submit
Mark this and return
Answer:
(4, 4 )
Step-by-step explanation:
Given the 2 equations
y = x² - 6x + 12 → (1)
y = 2x - 4 → (2)
Substitute y = x² - 6x + 12 into (2)
x² - 6x + 12 = 2x - 4 ( subtract 2x - 4 from both sides )
x² - 8x + 16 = 0 ← in standard form
(x - 4)² = 0 ← in factored form
x - 4 = 0 ⇒ x = 4
Substitute x = 4 into (2) for corresponding value of y
y = 2(4) - 4 = 8 - 4 = 4
Solution is (4, 4 )
I WILL NAME THEE BRAINLIEST!! (: PLZZZZZ HELP ASAPPPPP Solve for the unknown. Check your answer by substituting it in the original equation.
-A - 22 = -2A - 30 solve and check
Y - 12 = 2Y - 4 solve and check
Solve. Convert improper fractions to mixed numbers. Simplify your answers if possible. 1/4 x 4/5=
7/10 x 1/2=
3/4 x 9/10=
Step-by-step explanation:
1. -A-22=-2A-30
= -A+2A=-30+22
=A= -8
2. Y-12=2Y-4
=Y-2y=-4+12
-Y= +8
or Y = -8
1/4×4/5
4 cancels 4 which gives=1/5
7/10×1/2
= 7/20
3/4×9/10= 27/40
For f(x) = 4x+ 1 and g(x) = x2 - 5, find (f+ g)(x).
Answer:
x^2+4x-4
Step-by-step explanation:
4x+1+x^2-5
x^2+4x-4
Answer:
A. x² + 4x - 4
Step-by-step explanation:
When the question asks for (f + g)(x), it simply means to add function f(x) and function g(x):
4x + 1 + x² - 5
4x + x² - 4
x² + 4x - 4
Keisha wants to buy a stereo. Her mother said if Keisha saved 75% of the cost of the stereo, she would pay the other 25% and the taxes. If the cost of the stereo is $150.00, how much money does Keisha need to save?
Answer:
$112.50
Step-by-step explanation:
150x.75=112.5
Answer:
its 112.50
Step-by-step explanation:
i got it right
51-8; and v=
V5i+j. Round to the nearest tenth of a degree.
Find the angle between u=
65.90
c.
a.
90.40
33.30
b. 98.50
d.
Please select the best answer from the choices provided
Answer:
b. 98.5°
Step-by-step explanation:
There are a number of ways to do this. Perhaps one of the simplest is to compute the angle associated with each vector, and find the difference.
We can compute that angle as ...
vector angle = arctan((coefficient of j)/(coefficient of i))
where the arctangent is computed in the appropriate quadrant according to the signs of i and j.
∠u = arctan(-8/√5) ≈ -74.38°
∠v = arctan(1/√5) ≈ 24.09°
The angle between these vectors is then ...
24.09° -(-74.38°) = 98.47° ≈ 98.5°
PLEASE HELP ME IM SO CONFUSED The volume of a cube is x³ cubic units. The surface area of the cube is x³ square units. What is the value of x?
Answer: The value of x is 6.
Step-by-step explanation:
TO find the volume of a cube you cube any side length. so if the side length is 6.
6^3 = 216
To find the surface area of a cube you will square one of the side lengths and multiply it by 6.
so the side length is 6 and 6 squared is 36
36*6 = 216
which of the following rational functions is graphed below?
Answer:
D
Step-by-step explanation:
1/x+1
Which of the following is the graph of a linear function?
Answer:
The first one.
Step-by-step explanation:
A linear function is a straight line, regardless of direction.
The first graph is of a linear function.
The phrase linear function denotes to function which is linear, specifically of this form:
[tex]f(x) = mx + c[/tex]
This is also written as:
[tex]y = mx + c[/tex]
It is written so that we can take the outputs of the function f(x) in a separate variable for further mathematical treatments with ease.
Now when that second equation is plotted on XY plane, you get a straight line graph since this is the equation form of any straight line, in geometry.
All the straight lines are covered under y = mx + c linear function form.
Since the first graph contains a plot of straight line, thus the first graph is of linear function.
The second graph is of downwardly opened vertical parabola which is of degree 2, thus not linear.
Thus first graph is the graph of a linear function.
Learn more here:
https://brainly.com/question/959487
Simplify the polynomial (7m+5)^2
Answer:
[tex]49 {m}^{2} + 70m + 25 [/tex]Solution,
( 7m + 5)^2
Using the formula:
[tex] {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2} [/tex]
and expand the expression
= ( 7m)^2 + 2 • 7m • 5 + (5)^2
Evaluate the power
= 49m^2 + 2 • 7m • 5 + 25
Calculate the product
= 49m^2 + 70m + 25
Hope this helps...
Good luck on your assignment..
please help Yuto has a bag containing 3 red marbles, 5 blue marbles, 2 green marbles, and 8 yellow marbles. Rin reaches into the bag, pulls out a blue marble, and puts it in her pocket. Then Misaki reaches in and pulls out a marble. What is the total number of possible outcomes for Misaki’s marble?
Answer: 47.1%
Step-by-step explanation:
Answer:
The answer is C.17
Step-by-step explanation:
Drink your daily water!! Have a nice day everyone :)
The triangles shown below must be congruent.
A. True
B. False
Answer:
true
Step-by-step explanation:
What is the solution to the equation x2 = 16?
Answer:
+4, -4
Step-by-step explanation:
[tex]x^{2} =16\\\sqrt{x^{2} }=\sqrt{16}\\x=4/ x=-4[/tex]
5p coins weigh approximately 3 grams.
What would be the weight of £5 worth of 5p coins?
Give your answer in kg.
Answer: 0.3 kg
Step-by-step explanation:
£5 = 500p
500p ÷ 5 = 100
100 x 3 = 300 grams
300 ÷ 1000 = 0.3 kg
Hope this helps :)
Answer:
Hello!
_______________________
1 coin = 5p =20
5 x 20=100
100 x 3=300
0.3 kg
Step-by-step explanation: Multiply.
Hope this helped you!
The radius of a circle is given as 10cm subject to an error of 0.2cm. the error in the area of the circle is?
Answer:
12.56 [tex]cm^2[/tex] is the error in area of circle.
Step-by-step explanation:
Given that:
Radius of the circle, r = 10 cm
Error in measurement of radius, [tex]\triangle r[/tex] = 0.2 cm
To find:
The error in area of circle = ?
Solution:
First of all, let us have a look at the percentage error in measurement of radius:
[tex]\dfrac{\triangle r}{r}\times 100 = \dfrac{0.2}{10}\times 100 = 2\%[/tex]
Now, we know that Area of a circle is given as:
[tex]A = \pi r^2[/tex]
[tex]\Rightarrow \dfrac{\triangle A}{A} \times 100 = 2 \times \dfrac{\triangle r}{r} \times 100\\\Rightarrow \dfrac{\triangle A}{A} = 4\%[/tex]
Area according to r = 10
[tex]A = 3.14\times 10^2 = 314 cm^2[/tex]
Now, error in area = 4% of 314 [tex]cm^2[/tex]
[tex]\Rightarrow \dfrac{4}{100} \times 314 = 12.56 cm^2[/tex]
So, the answer is:
12.56 [tex]cm^2[/tex] is the error in area of circle.
A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag the possibility of not drawing a black marbles is? The probability of drawing a red marble is?
Answer:
3/10
Step-by-step explanation:
as the total number of marbles is 10 and the red marbles are 3 so the probability of drawing red marble will be 3/10.
Answer:
The possibility of not drawing a black marble= 4/5
The probability of drawing a red marble = 3/10
Step-by-step explanation:
Blue marbles = 5
Black marbles = 2
Red marbles = 3
Total marbles = 5 + 2 + 3 = 10
The possibility of not drawing a black marble = No of (blue + red) marbles/ Total marbles = ((5+3)/10 = 8/10 = 4/5
The probability of drawing a red marble = No of red marbles/Total marbles =3/10
find the value of x A. does not exist B. -7 C. 26 D. 35
Answer:
A-does not exist
Step-by-step explanation:
The pythagorian theorem :
12²+x²= (x-2)²144+x²= x²-4x+4144-4+x²-x²= -4x 140 = -4x x = 140/-4x= -35That's absurd . A side cannot be negative since it's a distance
It was obvious from the beginning since one of the sides is greater than the hypotenus wich is impossible x≥x-2
Answer:
A. does not exist
Step-by-step explanation:
Since this is a right triangle we can find the value of x using Phytagorian Theorem
(x-2)^2 = 12^2 + x^2
x^2 -4x + 4 = 144 + x^2 (x^2 will be eliminated)
-4x = 144
x = -36 since the side lengths cannot be negative we select the option A which says it doesn't exist.
Use the right triangle provided to find the missing side length. Use the Pythagorean Theorem c^2 = a^2 + b^2.
Answer:
11. C=5
12. SQRT (43)
Step-by-step explanation:
11. 3^2+4^2=9+16=25
12. 8^2-4^2=64−16=48
Find the probability of drawing a 6 and then a 6
(without replacement) from a standard deck of carNs.
A deck of cards has 52 total cards and four 6’s
Picking a 6 first would be 4/52 = 1/13
Without replacing there are 51 cards left and three 6’s
Picking a 6 would be 3/51 = 1/17
Probability of doing both is:
1/13 x 1/17 = 1/221
What is the factored form of n2 – 25?
Answer: (n + 5)(n - 5)
Explanation: In this problem, we have a binomial that's the difference of two squares because n² and 25 are both perfect squares and we are subtracting or taking the difference of these two squares.
Since the difference of two squares factors as the product of two binomials, we can setup our parenthses and in the first position, we use the factors of n² that are the same which are n · n.
In the second position, we use +5 and -5 as our factors of -25.
So our answer is (n + 5)(n - 5).
Which description matches the transformations y = cosx undergoes to
produce y = -3cos(x)+1?
A. Horizontal shift left 3 units, then vertical shift up by 1 unit
B. Horizontal compression by factor 3, vertical shift by 1 unit up, then a reflection across the x-axis
C. Vertical stretch by factor 3, reflection across the x-axis, then a
vertical shift up 1 unit
D. Reflection across the y-axis, vertical shift up by 1 unit, horizontal shift right by 3 units
Answer:
C.
Step-by-step explanation:
The parent function is y = cos(x).
When we have y = cos(x) + 1, this tells us that the graph has been shifted up by 1.
When we have y = -cos(x), this tells us that the graph has been reflected across the x-axis.
When we have y = 3cos(x), this tells us that the graph has been vertically stretched by a factor of 3.
All together, the answer is C.
Notes:
y = 3cos(x) would be a vertical stretch, while y = cos(3x) would be a horizontal compression.
y = -cos(x) is a reflection across the x-axis, while y = cos(-x) would be a reflection across the y-axis.
The lines shown below are paralel. If the green line has a slope of 5, what is
the side of the red line?
Answer:
B
Step-by-step explanation:
Parallel lines have equal slopes, thus
slope of red line = slope of green line = 5 → B
Gabriel note sur une frise chronologique les événements familiaux importants. Il utilise des entiers positifs ou négatifs. Pour écrire une date avant sa naissance, il utilise des nombres négatifs et pour une date après sa naissance, des nombres positifs. Par exemple, la mère de Gabriel a reçu une médaille en l'an -20−20minus, 20 et la sœur de Gabriel est née en l'an +5+5plus, 5. Que représente l'année 0~?0 ?0, space, question mark Réponse : Réponse : L'année où la sœur de Gabriel est née L'année de la naissance de Gabriel L'année où la mère de Gabriel a reçu une médaille
Answer:
L'option B est correcte. Le chiffre 0 représente l'année de naissance de Gabriel.
Option B is correct.
The number 0 represents the year when Gabriel was born.
Step-by-step explanation:
Il a été déclaré dans la question que Gabriel a enregistré des événements tge dans leur vie par rapport à quand il est entré en scène. Avec des exemples notables donnés pour illustrer que les nombres négatifs indiquent les temps avant la naissance de Gabriel et les nombres positifs indiquent les années après la naissance de Gabriel.
Par conséquent, il est simple de voir que l'année 0 en termes relatifs à la naissance de Gabriel représentera l'année de naissance de Gabriel.
J'espère que cela t'aides!!!
English Translation
Gabriel notes on a timeline important family events. It uses positive or negative integers. To write a date before his birth, he uses negative numbers and for a date after his birth, positive numbers. For example, Gabriel's mother received a medal in the year -20 and Gabriel's sister was born in the year + 5. What does the year 0 represent? Answer:
A) The year when Gabriel's sister was born
B) The year when Gabriel was born
C) The year when Gabriel's mother received a medal
Solution
It was stated in the question that Gabriel recorded tge events in their lives relative to when he came into the picture. With noticeable examples given to illustrate that the negative numbers indicate times before Gabriel's birth and positive numbers indicate years after Gabriel's birth.
Hence, it is straighforward to see that the year 0 in relative terms to Gabriel's birth will represent the year in which Gabriel was born.
Hope this Helps!!!
Matt bought some boards to build a wooden deck. Some of the boards were 4 ft long and some of the boards were 5 ft long. He bought 35 ft of boards altogether. How many boards altogether did Matt buy?
Answer:
8 boards.
Step-by-step explanation:
Since he bought a few of each length. The only combination that works is when he bought 5 of the 4 ft long board so 4×5=20. Than he bought 3 of the 5ft boards 3×5=15. 20+15=35 ft worth of boards.
Matt brought total 8 boards out of which the 5 boards are of 4ft and 3 boards are of 5ft.
We have a guy named Matt who bought some boards to build a wooden deck. Some of the boards were 4 ft long and some of the boards were 5 ft long. He bought 35 ft of boards altogether.
We have to find out how many boards he bought all together.
What do you mean by the solution of a equation ?The solution of an equation is the value at which the left hand side and right hand side of the equation equals to each other.
In the question, it is given that there are 4ft long and 5ft long boards and matt brought 35 ft of board all together.
Let us assume that the number of 4 ft boards he bought are = x and the number of 5ft boards be y, then according to question -
4x + 5y = 35
[tex]y = \frac{-4x + 35}{5} \\y=\frac{-4x}{5} + 7[/tex]
Now, all the points that lie on this line are the possible answers but the number of boards cannot be in decimal. Hence, the solution x = 5 and y=3, which will give us 4 x 5 + 5 x 3 which is equal to 35.
Hence, Matt brought 5 boards of 4ft and 3 boards of 5ft.
To solve more questions on linear equations in two variables, visit the link below -
https://brainly.com/question/22557080?referrer=searchResults
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Consider the following pair of equations: y = −2x + 8 y = x − 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.
Answer:
(3,2)
Step-by-step explanation:
y = −2x + 8
y = x − 1
Substitute the second equation into the first equation for y
y = -2x+8
x-1 = -2x+8
Add 2x to each side
x-1+2x = -2x+8+2x
3x -1 = 8
Add 1 to each side
3x-1+1 = 8+1
3x =9
Divide by 3
3x/3 = 9/3
x=3
Now find y
y = x-1
y =3-1
y=2
(3,2)
simplify the expression (2-5 root 6) times 3 root 2
Answer:
6(√2 - 5√3).
Step-by-step explanation:
3√2 ( 2 - 5 √6)
= 6√2 - 15√12
= 6√2 - 15√4√3
= 6√2 - 30√3
= 6(√2 - 5√3)
Helppp!!!! please!!!
Answer:
D
Step-by-step explanation:
The arc AB is calculated as
AB = circumference of circle × fraction of circle
= 2πr × [tex]\frac{120}{360}[/tex]
= 2π × 24 × [tex]\frac{1}{3}[/tex] = [tex]\frac{48\pi }{3}[/tex] = 16π → D
NEED HELP ASAP WHOEVER ANSWERS THE QUESTION RIGHT FIRST GETS THE MOST BRAINLIEST
Answer:
150
Step-by-step explanation:
360 - (130 + 80) = 150
Answer:
150
Step-by-step explanation:
130+80= 210
360-210= 150
so it is 150
Sean is trying to decide between four Roth IRAs. The month after the required initial contribution (RIC), he wants to start contributing the minimum subsequent investment (MSI) each month. Compare the cost of the minimum initial investment and Sean's monthly contribution for each IRA over the next 10 years. Which Roth IRA would Sean put the most money in over those 10 years?
Answer:
Option C.
Step-by-step explanation:
So, in the question above we are given that the value or parameters for the required initial contribution (RIC) and
the minimum subsequent investment (MSI) for each options and we are going to calculate the amount that will be gotten after investing in each options and the one that gives the highest values will be the correct option, which in this case is OPTION C.
So, we will be starting from the OPTION C, in white have that the
required initial contribution (RIC) = $5,000 and the minimum subsequent investment (MSI) = $100 for option C.
One year = 12 months
10 years = x months.
x = 10 × 12 = 120 months in ten years.
Thus, the formula for the Calculation is given below;
= 120 months × minimum subsequent investment (MSI) + required initial contribution (RIC).
= (120 months × $100) + $5,000 = $17,000.
If we Calculate for the other options with this format, we will have values for option A = $13, 000 and option B= $2,900 and the value for the investment in option D = $12,050.
$17,000 is the highest which is for option option C. Therefore, Sean should put his money in option c for better investment.
Find the surface area of a triangular pyramid with side of 6m, height of 5.2 m, and altitude of 7.2m
Answer:
6x5.2/2=15.6 and four sides so 15.6*4=62.4 and left with 7.2*6/2=21.6 and add u get 84
Step-by-step explanation: