Answer:
(x - 3)mph * > 2x
Step-by-step explanation:
KC's total rides in hours = 2x
KC's average speed = x
David's average speed :
3 mph less than KC's average speed = (x - 3)mph
David's total ride in hours in a month is more than KC's, that is ( >2x)
From the equation:
Speed = distance / time
Distance = speed * time
Total distance of miles David rides each month:
(x - 3)mph * > 2x
Which of the following steps would not be necessary when using the square root property to solve a quadratic equation?
A.After applying the square root property, solve the resulting equations.
B.The square root property may be applied only if the constant is positive
C.When taking the square root of both sides use on the square root of the constant.
D.Isolate the quantity being squared
Answer:
B- The square root property may be applied only if the constant is positive
If
A = i +3j -2K and B=4i-2j+4k
Find (2A+B).(A-2B)
GIVEN :
a = 1/√10 ( 3i + k) and
b = 1/7 ( 2i + 3j - 6k)
TO FIND :
( 2a- b) . [ ( a x b ) x ( a + 2b)]
SOLUTION :
◆Going with the equation given,
( 2a - b) . [ ( a x b ) x ( a + 2b)]
= (2a - b) [( a×b×a) + 2(a×b)×b]
◆BAC - CAB RULE,
A×B×C = B( A.B ) - C(A.B )
= (2a- b ) [ (b (a.a ) - a (a.b ) + 2b ( a.b) -2b (a.b]
Solving further
= (2a - b )(b - 2a)
= -4a.a -b.b
=-5.
Answer:
( 2 - b) . [ ( a x b ) x ( a + 2b)] = -5
Hoped I helped
Find the population of each BRICS country as the fraction of total population of BRICS
Answer:
fortnite battle royal
Step-by-step explanation:
Answer:
fre7wgbxyifg crgrggStep-by-step explanation:
Solve. 3(4x−7)=27 erhtnmdyrshgfwegbrnhtjftdgrsefvgsrdhtfjndbgrsvgrbhdtnjyu
★ Solution :
[tex]:\implies\sf 3(4x - 7) = 27\:\:\:\:\Bigg\lgroup \bf{Given\: Equation}\Bigg\rgroup \\\\\\:\implies\sf 12x - 21 = 27\\\\\\:\implies\sf 12x = 27 + 21\\\\\\:\implies\sf 12x = 48\\\\\\:\implies\sf x = \dfrac{48}{12}\\\\\\:\implies\underline{\boxed{\sf x = 4}}[/tex]
Answer:
Answer :[tex]3(x - 7) = 27[/tex]
[tex]⟹3x - 21 = 27[/tex]
[tex]⟹3x = 27 + 21[/tex]
[tex]⟹3x = 48[/tex]
[tex]⟹x = \frac{48}{3} [/tex]
[tex]⟹x = 16[/tex]
Carla has 10 coins, each of which is a nickel, a dime, or a quarter. The total value of her coins is less than $1.00. How many different
combinations of coins might Carla have?
Note: The values of a nickel, a dime, and a quarter are, respectively, $0.05, $0.10, and $0.25.
Answer:
2 quarters,2dimes,6nickels
Solve for s.
s - -37 = 98
Subtracting a negative becomes addition.
S - -37 = 98
Simplify:
S + 37 = 98
Subtract 37 from both sides:
S = 61
Answer:
61
Step-by-step explanation:
98 - 37 = 61
s = 61
How much will it cost to print a circular sign with a radius of 1.5 feet if the printing company charges $29 per square foot? Use A = πr2, where π is approximately 3.14. (Round your answer to the nearest cent.)
Answer:
$204.89
Step-by-step explanation:
Step 1
We have to first find the area of the circular sign.
Since the sign is circular in shape, we use the Area of Circle.
Area of a Circle = πr²
r = 1.5 feet
π = 3.14
Area of a Circle = 3.14 × 1.5²
= 7.065ft² or 7.065 square feet.
Step 2
We find out how much it cost to print the circular sign.
We are told in the question that
The printing company charges $29 per square foot
Hence,
1 square foot = $29
7.065 square feet =
Cross multiply
= 7.065 × $29
=$ 204.885
Approximately to the nearest cent, $204.89
Therefore, it will cost $204.89 to print the circular sign
A had $360 more than B. When A spent $144 and B spent half of his money, A had 6 times as much money as B, Find the ratio of the amount of money A had at first to that of B. Find the ratio of the amount of money A had at first to that of B. Give your answer in its simplest form.
Answer:
13:3
Step-by-step explanation:
A=x B=y
first; x= 360+y
later;x= 216+y
A:B
216+y: 1/2y = 6: 1
216+y/y÷2 =6/1
216+y = 3y
y = 108
first; x =360+y
360 +108
468
A:B = 468:108
13:3
Which expression can be used to convert AU$22 into US
The monthly cost (in dollars) of water use is a linear function of the amount of water used (in hundreds of cubic feet, HCF). The cost for using 14 HCF of water is $ 32.68 , and the cost for using 52 HCF is $ 95.38 . What is the cost for using 19 HCF of water?
Answer:
$40.93
Step-by-step explanation:
GivenLinear function of:
14 HCF = $32.6852 HCF = $95.38To find:
19 HCF = ?SolutionLinear equation in slope-intercept form:
y(x) = mx +bWe have points of: (14, 32.68), (52, 95.38):
y(14) = 14 m + by(52) = 52 m +bUsing the points we can find the value of m and b:
m= (y2-y1)/(x2-x1)m= (95.38 - 32.68)/(52 - 14)m = 62.7/ 28m= 1.65Then finding b:
14*1.65 +b = 32.68b= 32.68 - 23.1b= 9.58So the function is:
y = 1.65 x + 9.58Then y(19) is found as:
y(19) = 1.65*19 + 9.58y(19) = 40.93Answer: Cost of 19 HCF of water is $40.93
The possible answers are 32, 24, 16, and 8. Please answer ASAP!! :D
Answer:
8 feet
Step-by-step explanation:
The volume of a rectangular prism is [tex]lwh[/tex], where l is length, w is width, and h is height.
We already know the length, width, and volume, so we can easily find the height by substituting these values into the equation, then isolating h one one side.
[tex]96 = 4\cdot3\cdot h\\\\96 = 12h\\\\8 = h[/tex]
Hope this helped!
Which measure of central tendency is more representative of the typical observation if the graph of the data is skewed to the right?
Answer:
Median
Step-by-step explanation:
The measure of central tendency is used to represent an entire group of data with a common single number. There are three types of measure of central tendency, the mean , the median and the mode. Our focus here is on the median because in any skewed dataset, The median is the best form for a skewed type of distribution. The median is the middle number in an ordered set of data.
In a skewed type of distribution, the mode is the highest point of the distribution. In the measure of central tendency, the mean is mostly influenced by the outliers and it is pulled towards to the tail region of the distribution.
definition qualitative graph
Answer:
Qualitative data is information about qualities; information that can't actually be measured. Some other aspects to consider about qualitative data:
Represented through pictures that explore the data in a visual way Visual representations focus on the themes found in the data Can tell a story Can also be displayed graphically as a pie chart or bar graph, the same as quantitative data, however, this can be tricky and can be done incorrectly easily
A store bought a dining room table at a cost of $478 and marked it up 150%. Later on, the
store marked it down 60%. What was the discount price?
Answer:
$286.80
Step-by-step explanation:
First, find the price after the 150% markup:
478(1.5)
= 717
Now, calculate the price with the 60% discount:
717(0.4)
= 286.8
= $286.80
The graph of a sinusoidal function has a maximum point at (0,8) and then has a minimum point at (5,2). Write the formula of the function, where x is entered in radians.
Answer:
y = 3 cos(π/5 x) + 5
Step-by-step explanation:
The amplitude is half the difference of the min and max.
A = (8 − 2) / 2
A = 3
The midline is the average of the min and max.
C = (8 + 2) / 2
C = 5
The difference in the x values of the min and max is half the period.
T/2 = 5 − 0
T = 10
The function is a maximum at x = 0, so use cosine.
y = 3 cos(2π/10 x) + 5
y = 3 cos(π/5 x) + 5
The formula of the function, where x is entered in radians is [tex]\rm y = 3 sin(\dfrac{\pi}{5}x) + 5[/tex] and this can be determined by using the given data.
Given :
The graph of a sinusoidal function has a maximum point at (0,8) and then has a minimum point at (5,2).
The following steps can be used in order to determine the formula of the function, where x is entered in radians:
Step 1 - The generalized sinusoidal function is given below:
[tex]\rm y = A sin(bx) + C[/tex]
where A is the amplitude.
Step 2 - Now, the value of A is given below:
[tex]\rm A = \dfrac{8-2}{2}[/tex]
A = 3
Step 3 - The value of C is calculated as:
[tex]\rm C = \dfrac{8+2}{2}[/tex]
C = 5
Step 4 - The time period is calculated as:
[tex]\rm \dfrac{T}{2}=5-0[/tex]
T = 10
Step 5 - So, the value of y is maximum at (x = 0).
[tex]\rm y = 3 sin(\dfrac{2\pi}{10}x) + 5[/tex]
[tex]\rm y = 3 sin(\dfrac{\pi}{5}x) + 5[/tex]
For more information, refer to the link given below:
https://brainly.com/question/6848432
Think I might need little assistance
Answer:
x = 90
Step-by-step explanation:
We use the Definition of Corresponding Angles to help us solve for x:
∠1 = ∠4
Step 1: Write out equation
3x - 160 = x + 20
Step 2: Solve for x
2x - 160 = 20
2x = 180
x = 90
A die is rolled 300 times and following outcomes were recorded.
outcome 1 2 3 4 5 6
frequency 62 45 63 32 47 51
find the probability of getting
1. more than 4
2. less than 3
Answer:
1. 49/150
2. 107/300
Step-by-step explanation:
Here is a probability question.
a. The first question asks us to find the probability of getting more than 4.
Now to do this, we look at our possible results when we roll the die, we can see that we can have 1-6.
But within this range, only two numbers are greater than 4, these are 5 and 6
Thus, to calculate the probability of getting either 5 or 6, we look at their frequencies, sum it up, then divide by the total number of times which the die was rolled.
The frequency of 5 is 47, while that of 6 is 51
The probability of getting more than 4 = Probability of getting 5 + Probability of getting 6 = (Frequency of 5 + Frequency of 6)/Total number of trials
= (47 + 51)/300 = 98/300 = 49/150
b. Probability of getting less than 3
Here, we proceed as we did in the first question. The numbers which are less than 3 are 1 and 2.
So the probability of getting less than 3 = Probability of getting 1 + Probability of getting 2 = (Frequency of 1 + Frequency of 2)/Total number of trials
Frequency of 1 = 62 while Frequency of 2 = 45
So, probability of getting less than 3 = (45 + 62)/300 = 107/300
Alana makes and sells homemade bracelets. She made a profit of $65 last week. This week, she donated some bracelets to charity. Her profit at the end of this week can be represented by -$25. What is the DIFFERENCE between last week’s profit and this week’s profit?
Answer:
$40 is the difference. One is positive(W1), one is negative(W2). Therefore, you subtract.
Step-by-step explanation:
You subtract week ones profit and week twos profit.
65 - 25 = $40
You subtract because she had a negative profit for week two and/or a profit below 0.
Femi's last 5 bowling scores were 68, 75, 72, 90, and 80.
What was Femi's mean score?
A. 72
B. 75
C. 77
D. 79
Answer:
77
Step-by-step explanation:
The mean of a set of numbers will be the sum of all of them divided by the amount of numbers.
[tex]68+75+72+90+80=385[/tex]
There are 5 numbers in this set:
[tex]385\div5=77[/tex]
Hope this helped!
Femi's mean score is C. 77
Femi's mean score is the sum of all his bowling scores, divided by the number of times he bowled.
Question said that he bowled 5 times so the mean is:
= (68 + 75 + 72 + 90 + 80) / 5
= 385 / 5
= 77
Femi's mean score is therefore 77
Find out more at https://brainly.com/question/17927197.
Use the common ratio to find the next term of the geometric sequence. Type a numerical answer in the space provided.
If necessary, use the / key to represent a fraction bar. Do not type spaces in your answer.
120, 60, 30, ...
Answer:
15
Step-by-step explanation:
the common ratio is 1/2 so you do 30(1/2)
30(1/2)=15
1 ac =how many millions
1 Acre-feet to Million Cubic Feet = 0.0436
Write a decimal expansion for 2/9. Chose the correct decimal notation.
Answer:
The answer is
2/9=0.222222222.
There are twelve signs of the zodiac. How many people must be present for there to be at least a 50% chance that two or more of them were born under the same sign
Answer:
5
Step-by-step explanation:
Given that each zodiac sign occupies 1/12 of a year.
Then the minimum number of persons for Y[all different signs] < 0.5,
The probability of at least two having the same sign is 1 minus the probability of all having different signs.
This can be represented as A [at least 2 person share the same sign] = 1 - Y[all different signs] must be > 0.5
Therefore we have 1 - 12/12 *11/12 * 10/12 *9/12 *8/12 = 0.38
This implies that the lowest number will be found to be 5
Hence, the correct answer is 5.
Calculate two iterations of Newton's Method to approximate a zero of the function using the given initial guess. (Round your answers to four decimal places.) f(x) = cos x, x1 = 0.7
Answer:
The two iterations of f(x) = 1.5598
Step-by-step explanation:
If we apply Newton's iterations method, we get a new guess of a zero of a function, f(x), xₙ₊₁, using a previous guess of, xₙ.
xₙ₊₁ = xₙ - f(xₙ) / f'(xₙ)
Given;
f(xₙ) = cos x, then f'(xₙ) = - sin x
cos x / - sin x = -cot x
substitute in "-cot x" into the equation
xₙ₊₁ = xₙ - (- cot x)
xₙ₊₁ = xₙ + cot x
x₁ = 0.7
first iteration
x₂ = 0.7 + cot (0.7)
x₂ = 0.7 + 1.18724
x₂ = 1.88724
second iteration
x₃ = 1.88724 + cot (1.88724)
x₃ = 1.88724 - 0.32744
x₃ = 1.5598
To four decimal places = 1.5598
Lincoln is wrapping a rectangular shaped present. The length of the present is 4 inches, the width is 8 inches and the height is 15 inches. How much wrapping paper will Lincoln need?
Step-by-step explanation:
To find the area of the wrapping paper required,
we must find the Total Surface Area of the box
As we know, the TSA of a cuboid= 2 (lh+bh+lb)
Here,
Total Surface Area of the cuboid=
[tex]2(4 \times 8 + 8 \times 15 + 15 \times 4)[/tex]
[tex] = 2(32 + 120 + 60)[/tex]
[tex] = 2(212)[/tex]
[tex] = 414 \: inches^2[/tex]
Warmup Day 1
(52 + 4) * 5 - 2 + (-4)
Please work this Problem out step by step.
X Clear
* Undo
Answer:
274
Step-by-step explanation:
(52 + 4) * 5 - 2 + (-4)
56 * 5 - 2 + (-4)
56 * 5 - 2 - 4
280 - 2 - 4
278 - 4
274
Answer:
274
Step-by-step explanation:
(52+4)*5-2+(-4)
(56)*5-2+(-4)
280-2+(-4)
278+(-4)
274
whats the answer to 4c+5=27
Answer:
c=5+1/2
Step-by-step explanation:
We move all terms to the left:
4c+5-(27)=0
We add all the numbers together, and all the variables
4c-22=0
We move all terms containing c to the left, all other terms to the right
4c=22
c=22/4
c=5+1/2
If x^2 = 196, what is the sum of the possible values of (x −1)^2?
Answer:
Step-by-step explanation:
x²=196
x=±14
when x=14
(x-1)²=(14-1)²=13²=169
when x=-14
(x-1)²=(-14-1)²=(-15)²=225
sum=169+225=394
1. -4х – 7- 3х + 4 = 25
Answer:x=-4
Step-by-step explanation: combine like terms, add 4 and -7 which is -3 and add -4x and the -3x because they are like terms which is -7x so it should be -7x-3=25. then to get rid of the 3 add it to both sides so it would turn out like -7x=28 then divide the 7 on both sides= 28/ -7= -4
The price of a visit to the dentist is $ 50 $50dollar sign, 50. If the dentist fills any cavities, an additional charge of $ 100 $100dollar sign, 100 per cavity gets added to the bill. If the dentist finds n nn cavities, what will the cost of the visit be? Write your answer as an expression. $ $dollar sign .
Answer:
well you dont have a value of amounts of cavities so ill write write an equation 50+x100 where x represents amount of cavitys