Answer:
99
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
A shop is selling notebooks for £1.50 each.
They have a buy one get one half price offer on.
How many notebooks can be bought for £25?
Answer:
18 . 75
Step-by-step explanation:
1.50's half is 0.75 , Then multiply £1.50 × £25
Answer:
one book=1.50
the other half priced book=0.75
so 0.75+1.50=2.25
25/2.25
=11.111
so eleven books
Question 7 (1 point)
Using the Cylinder in the picture, find the Lateral Area, the Area of a Single Base, and the TOTAL Surface Area: (round to the nearest
hundredth)
7 cm
10 cm-
Lateral Area =
Single Base Area =
Surface Area =
Blank 1:
cm²
_cm²
cm²
Answer:
The lateral area is 439.82 I don't know the single base one and The surface area is 747.7
Step-by-step explanation:
What is the value of x in the triangle?
Answer: [tex]D. 6\sqrt{x} 2[/tex] is the answer
Step-by-step explanation:
Solve the equation x2 − 16x 54 = 0 by completing the square. fill in the values of a and b to complete the solutions.
The solution to the given quadratic expression using the completing the square is x = ±√10 +8
Completing the square methodThis is a method of factoring quadratic expression. Given the quadratic function.
x^2 − 16x + 54 = 0
Subtract 54 from both sides
x^2 − 16x = -54
Complete the square
x^2 -16x +8^2 = -54 + 64
(x-8)² = 10
x - 8 = ±√10
x = ±√10 +8
Hence the solution to the given quadratic expression using the completing the square is x = ±√10 +8
Learn more on completing the square here: https://brainly.com/question/13981588
#SPJ4
When dividing a number by 10, where is the decimal point moved?
Answer:
decimal point is moved one digit towards the left when divided by 10.
for example:
50.1 ÷ 10 = 5.01
hope that helps you...
Pre-algebra Volumes. GIVING BRAINLEST! TO FIRST ANSWER. 25 POINTS!
Answer:
Choice B and Choice C
Step-by-step explanation:
Hello! This is how I solved this question:
(10 x 8 x 2) + (3 x 3 x 4) = 160 + 36 = 196ft^3
(10 x 3 x 2) + (5 x 4 x 2) = 60 + 40 = 100ft^3
(8 x 4 x 2) + (3 x 6 x 2) = 64 + 36 = 100ft^3
(8 x 10 x 3) + (4 x 5 x 2) = 240 + 40 = 280ft^3
Choice B and Choice C are the same values, and knowing that you need two of the same values for the volume of the figure must be the same. Giving you your two answers from simply multiplying and adding the answers.
Hope this helps, don't hesitate to ask if you have additional inquiries!
Can somebody please explain how to do this by formula,theorem,or anyway how to do this
[tex]\text{It is an equilateral triangle, so all angles are equal to}~ 60^{\circ}\\\\~~~~~~m\angle 2 = x+72\\\\\implies 60 = x+72\\\\\implies x = 60-72\\\\\implies x = -12[/tex]
I don't understand this equation, I need a little help...
x + 14 = 14, x
The side of a square is 3 cm long.
What is the length of the diagonal of the square? Give a reason for your answer.
INSTRUCTION: Round your answer to two decimal places.
Answer:
approximately 4.23 cm
What is the simplest radical form of the expression?
(8x^7y^4)^2/3
Answer:
[tex]\large \text{$ 4 x^{\frac{14}{3}}y^{\frac{8}{3}}$}[/tex]
Step-by-step explanation:
Given expression:
[tex](8x^7y^4)^{\frac{2}{3}}[/tex]
[tex]\textsf{Apply exponent rule} \quad (a \cdot b)^c=a^{c} \cdot b^{c}:[/tex]
[tex]\implies 8^{\frac{2}{3}} \cdot (x^7)^{\frac{2}{3}}\cdot(y^4)^{\frac{2}{3}}[/tex]
[tex]\implies 4 \cdot (x^7)^{\frac{2}{3}}\cdot(y^4)^{\frac{2}{3}}[/tex]
[tex]\textsf{Apply exponent rule} \quad (a^b)^c=a^{bc}:[/tex]
[tex]\implies 4 \cdot x^{\frac{14}{3}}\cdot y^{\frac{8}{3}}[/tex]
[tex]\implies 4 x^{\frac{14}{3}}y^{\frac{8}{3}}[/tex]
Expand [tex]\bf{(8x^{7}y^{4})^{\frac{2}{3} } }[/tex]
[tex]\bf{8^{\frac{2}{3} }(x^{7})^{\frac{2}{3} }(y^{4})^{\frac{2}{3} } }[/tex]
To raise a power to another power, multiply the exponents. Multiply 7 and 2/3 to get 14/3.
[tex]\bf{8^{\frac{2}{3}}x^{\frac{14}{3} }(y^{4})^{\frac{2}{3} } }[/tex]
To raise a power to another power, multiply the exponents. Multiply 4 and 2/3 to get 8/3.
[tex]\bf{8^{\frac{2}{3}}x^{\frac{14}{3} }y^{\frac{8}{3} } }[/tex]
Calculate 8 to the power of 2/3 and you get 2/4.
[tex]\bf{4x^{\frac{13}{4} }y^{\frac{8}{3} } \ \ ==== > \ \ \ Answer }[/tex]
please hepl, 30 points, will give brainly
Answer:
3x(5-7)°+1(5x-7)°
3x×5-3x×7+1×5x-1×7
15x-21x+5x-7
15x+5x-21x-7
20x-14
A transport company needs to deliver 500,000 pounds of rocks to a construction site. The company owns a set of dump trucks- each with a container in the shape of a rectangular prism (figure A). If each pound of rock has a volume of 0.01 cubic feet, how many dump trucks will it take to transport the rock? Calculate the total volume of rock that the transport company is responsible for. Calculate the maximum volume of each dump truck. How many trucks are needed to deliver the rock in one trip?
The number of trucks needed to deliver the rock in one trip will be 6.
How to find the volume of a right rectangular prism?Suppose that the right rectangular prism in consideration be having its dimensions as 'a' units, 'b' units, and 'c' units, then its volume is given as:
V = a x b x c
A transport company needs to deliver 500,000 pounds of rocks to a construction site.
The company owns a set of dump trucks- each with a container in the shape of a rectangular prism (figure A).
If each pound of rock has a volume of 0.01 cubic feet.
Then the total volume of rock that the transport company is responsible for.
Volume of rocks = 0.01 x 500,000
Volume of rocks = 5,000 ft³
Then the maximum volume of each dump truck will be
Volume of truck = 12 x 9 x 8
Volume of truck = 864 ft³
Then the number of the trucks are needed to deliver the rock in one trip will be
Number of trucks = 5000 / 864
Number of trucks = 5.787
Number of trucks ≅ 6
Learn more about the volume of a right rectangular prism here:
https://brainly.com/question/21308574
#SPJ1
A risky stock sells for $10 per share. With probability 0.3, the stock will be worth 3 times as much in two years. With probability 0.7, the stock will be worth 1/10 as much in two years. Suppose you buy 10 shares of the stock and then sell the stock in two years. Let N be the random variable denoting your net gain in dollars. What is the expected value of N
The expected value of the net gain from selling the stock in 2 years is $-3.
What is the net gain?The net gain is the total profit from selling the stock less the total cost of buying the stock
Total cost of buying the stock = 10 x $10 = $-100
Expected selling price = (0.3 x $100 x 3) + (0.7 x$100 x 1/10) += $97
Net gain = $97 - $100= $-3
To learn more about profit, please check: https://brainly.com/question/26181966
#SPJ2
For an A.P., a= 25, d = -3. Find the value of n if S=112
Answer:
n = 7.
Step-by-step explanation:
Sum S of an AP = (n/2)[2a + d(n - 1)]
112 = (n/2)[2*25 - 3(n -1)]
n/2 (53 - 3n) = 112
n(53 - 3n) = 224
-3n^2 + 53n - 224 = 0
3n^2 - 53n + 224 = 0
(3n - 32 )(n - 7 ) = 0
n = 7, 32/3
So n must be 7 as its a whole number.
The area A of the rectangle shown is 500 square meters. Find the value of x. Then give the dimensions of the rectangle.
Answer:
Length = 4(7) - 3 = 25 mWidth = 2(7) + 6 = 20 mStep-by-step explanation:
Area Formula
*Area* = *Length* × *Width*Given
Area = 500 square metersLength = (4x - 3) metersWidth = (2x + 6) metersSolving
(4x - 3)(2x + 6) = 5008x² - 6x + 24x - 18 = 5008x² + 18x - 18 - 500 = 04x² + 9x - 259 = 0(4x + 37)(x - 7) = 0x = 7 [as distance is always positive]Dimensions
Length = 4(7) - 3 = 25 mWidth = 2(7) + 6 = 20 mNow
Area =LB(4x-3)(2x+6)=5008x²+18x-518=0(x-7)(4x+37)=0x=7 or -37/4Take it positive
L=4(7)-3=28-3=25B=2(7)+6=20Guys I really need some help this is due tomorrow Help me asap
I hope y’all know how to margin of error please help me ASAP
Answer:
please explain the question better so sorry
Step-by-step explanation:
I can't understand the question please explain it and I'll help the best I can
)The scatter plot shows the relationship between the number of hours spent practicing piano per week and the number of pieces of music the student can play:
A scatter plot is shown. The x-axis is labeled hours spent practicing and the y-axis is labeled number of pieces student can play. Data points are located at 1 and 1, 1 and 5, 2 and 10, 2 and 15, 3 and 15, 3 and 25, 4 and 40, 5 and 40, 5 and 50, 6 and 55, 6 and 70, 8 and 90, 3 and 70. A circle labeled T includes all points except for 3 and 70. Point 3 and 70 is circled and labeled as R.
Part A: What is the group of points labeled T called? What is the point labeled R called? Give a possible reason for the presence of point R. (3 points)
Part B: Describe the association between the number of hours practiced each week and the number of pieces a piano student can play. (2 points)
Part A
The group of points labeled "T" can be thought of as the main cluster of points. Your teacher might have given another name for it, but this is how I think about it. All of these points are very close to a straight line.
The point R is known as an outlier. It is fairly far from the main cluster, in that it's not near the regression line. You can think of the points in the main cluster as houses along/near a straight road. The outlier house is unfortunately far from that road.
One possible reason for point R is that the student is very talented and can pick up music really easy, thereby not needing that much practice. Another reason is that the student already had tons of prior practice and experience, so they don't need as much practice currently.
============================================================
Part B
We have a strong positive linear association with the main cluster of data points. As mentioned earlier, a straight line is very close to these points. The closer they are to the same straight line, the stronger the correlation.
We have positive correlation because as x goes up, so does y. The variables increase together. Negative correlation happens when x and y go in opposite directions (one goes up, the other goes down).
The outlier point R pulls on the regression line to make it slightly not near the main cluster. The line tries its best to be near all of the points, and that includes the outlier. In some situations, the outlier is ignored and regression is done on the other set of points.
As you can probably guess, the outlier dilutes the strength of the correlation. The further the outlier, the weaker the correlation gets.
Answer:
Here you go!
Step-by-step explanation:
A) The group of points labeled T called cluster. The point labeled R called outlier. Student because of being proficient on the piano before practice was measured.
B) A positive correlation is a relationship between two variables that tend to move in the same direction
On average how far from the mean age is each player?
The mean of the age data of the players is 20 and on average the age of each player is 1 far from mean.
What is dot plot?The dot plot is the way of representation of the data. This data is plotted in the form of points or dots over an x-y axis. The dot plot is also known as the strip plot.
The data of the age of the player is,
18,19,20,21,21,21
The number of player are 6. Thus, the mean of the data is,
Mean=(18+19+20+21+21+21)/6
Mean=20
The distance form mean 20 of each player age is, 2,1,0,1,1,1. The mean deviation is,
Mean Deviation= (2+1+0+1+1+1)/6
Mean Deviation=1
Thus, the mean of the age data of the players is 20 and on average the age of each player is 1 far from mean.
Learn more about the dot plot here;
https://brainly.com/question/15853311
#SPJ1
g+6 ≥ 5 I need help I don't know how to do it
Answer:
you will subtract 6 from 5 then your answer will be g ≥ -1
Step-by-step explanation:
hope this helps
somebody please help me with this
Answer:
P(A) = 5/12
P(B) = 1/2
Step-by-step explanation:
A) Sum greater than 7
If the sum needs to be >7, then it can be 8, 9, 10, 11, and 12.
There are 26 out of 36 events where the sum is >7, thus P(A) = 15/36 = 5/12.
B) Sum is even
If we see in an overview of the sum distribution, there is a balanced division between odd and even numbers, thus the probability is very likely to be 1/2. Now let's make sure of it:
If the sum needs to be even, which means divisible by 2, then it can be 2, 4, 6, 8, 10, and 12.
There are 18 out of 36 events where the sum is even, thus P(B) = 18/36 = 1/2.
Image of table for reference: https://qph.fs.quoracdn.net/main-qimg-1283a98bd649f522986e2f91a592ffd3
can someone do this for me please?! Just the answer pls
Answer:
1 is d
the square root of 36 = 6 which is the only equation with 36
2 is d
Determine the equation of the circle with center (-4,-2) containing the point
(4, -17).
The equation of the circle is:
[tex](x + 4)^2 + (y + 2)^2 = 17^2[/tex]
How to get the equation for the circle?The general equation for a circle of radius R and center (a, b) is:
[tex](x - a)^2 + (y - b)^2 = R^2[/tex]
Here the center is (-4, -2), and it contains the point (4, -17), so the radius is:
[tex]R = \sqrt{(4 - (-4))^2 + (-2 + 17)^2} = 17[/tex]
So the equation of the circle is:
[tex](x + 4)^2 + (y + 2)^2 = 17^2[/tex]
If you want to learn more about circles:
https://brainly.com/question/1559324
#SPJ1
PLS HELP! The figure is a triangle that is divided into two parts. Angle A and angle E are right angles, and the measure of angle F is 30°. What is the measure of angle C?
Complete the steps below to solve the problem using equations.
The manufacturer of a fertilizer guarantees that, with the aid of the fertilizer, 80% of planted seeds will germinate. Suppose the manufacturer is correct. If 10 seeds planted with the fertilizer are randomly selected, what is the probability that more than 7 of them germinate
The Probability of that more than 7 of them germinate is 0.2948.
What is Probability?Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1.We are to determine the probability that more than 7 of 10 seeds (i.e. 8, 0r 9 0r 10) germinate.
The probability that all 10 seeds germinate is equal 0.80¹⁰= 0.1073 = 10.73%.
The probability that only the first (only the second, etc ) seed does not germinate is equal 0.20 X 0.80⁹= 0.0268 = 2.68%.
The probability that 6 seeds germinate is the sum of the probabilities that only the first seed does not germinate, only the second one does not germinate, etc, and equals to 10 X 0.0268 = 0.268 = 26.8%.
The total probability that more than 7 of 10 seeds germinate is the sum of the probabilities that 10 seeds germinate and that 7 seeds germinate, i.e. 2.68 % + 26.8 % = 29.48 %.
Thus, The Probability of that more than 7 of them germinate is 0.2948.
Learn more about Probability from:
https://brainly.com/question/11234923
#SPJ1
x + y = 20 and 2x + y =25 how can i solve this equation
Answer: I will give you a answer for both of them.
Step-by-step explanation:
First equation: x+y=20
1. Subtract y from both sides.
x=20−y
Second equation: 2x+y=25
1. Subtract y from both sides.
2x=25−y
2. Divide both sides by 2.
[tex]X[/tex][tex]=[/tex][tex]\frac{25-y}{2}[/tex]
Find the roots of the equation x2-x=6 algebraically
Answer:
x= 3
x= -2
Step-by-step explanation:
x^2-x=6
x^2-x-6=0
find which 2 numbers when multiplied give -6 and
when added give -1
they are -3 and 2
(x-3)(x+2)
x= 3
x= -2
QUESTION 3 Given: f(x) = 3(x - 1)² - 12 +1 and g(x) = X+2 3.1 Calculate the coordinates of the x-intercept and the y-intercept of g 3.2 Calculate the coordinates of the x-intercept and the y - intercept of f. 3.3 What is the minimum value of f(x)? 3.4 On the same set of axes, sketch the graphs of f and g. Indicate all intercepts with axes and the coordinates of the turning point of f. 3.5 For which values of x will both f(x) and g(x) increase as x increases?
Answer:
Solution: (-1, 1) and (10/3, 16/3) are Intercepts.
Step-by-step explanation:
Set the equations equal to themselves and solve for x and y.
Hope this helps! :)
Questions 1-4 of 4 | Page 1 of 1
Question 1 (1 point)
Of 100 boys, 34 are on the Honor Roll, 29 play sports, and 27 are on the Honor Roll and play sports.
What is the probability that a randomly selected student plays sports or is on the Honor Roll? Pick
the most simplified answer.
a
36/100
9/25
Oc 18/50
Od 3/5
Answer:
A 36/100
Step-by-step explanation:
the probability is going to be this because the rates in honor roll and sports are higher than the other 27 that do both.
b) The completed construction of a regular hexagon is shown below. Explain why ACF is a 30º-60º-90º triangle.
Answer: Please see the analysis
Find the arc length of the subtending arc for an angle of 3pi/4 radians on a circle of radius 2.5.
The arc length of the circle will be equal to 5.89 units.
What is the length of the arc?The length of the curve on the circumference of the circle making an angle with the centre is called the length of the arc of the circle.
Given that:-
Angle = 3π / 4radius = 2.5 units.The length of the arc will be calculated as:-
Arc = Angle x radius
Arc = ( 3π / 4 ) x 2.5
Arc = 5.89 units.
Therefore the arc length of the circle will be equal to 5.89 units.
To know more about arc length follow
https://brainly.com/question/2005046
#SPJ1