Answer:
Step-by-step explanation:
1
Answer: 1 divided by 8= 0.125
10 divided by 11= 0.90^
Step-by-step explanation:
need help asap very confusing (for me)
Answer:
The last one (2/3 and 8/12)
Step-by-step explanation:
When you reduce 8/12, you would get 2/3. If you multiply 2/3, you would get 8/12. Therefore, this ratio is proportional.
Have a good day :)
Solve the inequality.
2 - | 2/5x +3 | > 3/5
Answer:
Inequality form:
-11< x < -4
Interval Notation:
(-11, -4)
one of the five quadratics below has a repeated root. (the other four have distinct roots.) what is the repeated root? \begin{align*}
Form the given five quadratics , the one representing the repeated roots is equal to option d. 25x² - 30x + 9 and repeated roots are 3/5 or 3/5.
Quadratics representing repeated roots has discriminant equals to zero.
Standard quadratic equation is:
ax² + bx + c = 0
Discriminant 'D' = b² - 4ac
option a. -x²+ 18x + 81
Discriminant
'D' = 18² - 4(-1)(81)
= 324 + 324
= 648
D>0 has distinct roots.
option b. 3x²- 3x - 168
Discriminant
'D' = (-3)² - 4(-3)(-168)
= 9 - 2016
= -2007
D< 0 has distinct roots.
option c. x²- 4x - 4
Discriminant
'D' = (-4)² - 4(1)(-4)
= 16 + 16
= 32
D>0 has distinct roots.
option d. 25x²- 30x + 9
Discriminant
'D' = (-30)² - 4(25)(9)
= 900 - 900
= 0
D = 0 has repeated roots.
Repeated roots are:
x = ( -b ±√D ) / 2a
= [-(-30)±√0 ]/ 2(25)
= 30/ 50
= 3/5.
option e. x² - 14x + 24
Discriminant
'D' = (-14)² - 4(1)(24)
= 196 - 96
= 100
D>0 has distinct roots.
Therefore, the quadratics which represents the repeated roots are given by option d. 25x² - 30x + 9 and its repeated roots are 3/5 or 3/5.
The above question is incomplete, the complete question is:
One of the five quadratics below has a repeated root. (There other four have distinct roots.) What is the repeated root?
a. -x²+ 18x + 81
b. 3x² - 3x - 168
c. x² - 4x - 4
d. 25x² - 30x + 9
e. x² - 14x + 24
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question 11(multiple choice worth 5 points) (02.06 mc) what is the measure of angle x? a pair of parallel lines is cut by a transversal. an exterior angle on the left of the transversal is labeled as 40 degrees. an interior angle on the right of the transversal, which is not vertically opposite to the 40 degree angle, is labeled as x. 40 degrees 80 degrees 130 degrees 140 degrees
The measure of angle x is 140°
For given question,
We are given that a pair of parallel lines is cut by a transversal line .
Let a pair of parallel lines are PQ and RS and the transversal line AB cut the parallel lines PQ and RS.
We are given that an exterior angle on the left side of the transversal line is 40 degrees.
The interior angle on the right side of transversal line is x which is not vertical opposite to exterior angle = 40 degrees
We know that when two lines are parallel and cut by a transversal line then corresponding angles are congruent.
So, angle MNR = 40°
Also, ∠MNR + ∠MNS = 180° ...............(linear pair of angles)
⇒ 40° + x = 180°
⇒ x = 140°
Therefore, the measure of angle x is 140°
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For what values of c does the quadratic equatrion x^2-2x+c=0 have two roots of the same sign
The roots have positive or same signs when c>0.
Note that only real numbers can be positive or negative. This concept does not apply to complex non real numbers. So first we have to make sure that the roots are real which occurs when discriminant is greater or equal to 0.
\(b^{2} -2ac > 0\\2^{2} -2(-1) (c) > 0\\4-2c > 0\\c > -2\)
Roots of quadrant equation have Samsame sign if product of roots >0.
\(\frac{a}{c} > 0\\\frac{c}{-1} > 0\\c < 0\)
Roots of quadratic equation have positive sign if product of roots<0.
c>0.
Combining results, we get:-
roots have positive signs when:-
c>0.
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the measure of the angle where line l meets line n is [ select ] degrees. the measure of the angle where line m meets line n is [ select ] degrees. because lines l and m are both [ select ] the same line n, that means lines l and m are [ select ] .
The measure of the angle where line l meets line n is unknown, as it is not mentioned in the question.
Unfortunately, the question does not provide any information about the measure of the angles where lines l and m meet line n.
Therefore, we cannot determine the specific degrees of these angles. However, we do know that lines l and m are not the same line but intersect line n.
This suggests that lines l and m are not parallel to each other. When two lines intersect, they form angles at the point of intersection. These angles can vary in measure depending on the specific geometric configuration. Without further information, we cannot determine the exact measure of these angles.
Similarly, the measure of the angle where line m meets line n is also unknown.
The fact that lines l and m both intersect with line n indicates that they are two distinct lines that intersect at a common point, creating a "V" shape. In other words, lines l and m are not the same line.
Therefore, the conclusion is that lines l and m are not parallel but intersect each other at line n.
Lines l and m are not parallel, but they intersect at line n. The measure of the angles where they intersect is not given in the question.
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verbal expression for 7 to the third power
The answer is " 7 to the power 3rd ".
We translate the algebraic expression 7³ into a verbal expression. The given expression has a base number of 7 raised to the power of 3 . This means is that 7 is multiplied by itself 3 times. So we should write " 7 to the power 3rd "
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Let p: x = 4
Let q: y = −2
Which represents "If x = 4, then y = -2"?
1.) pv q
2.) p^q
3.) p → q
4.) p<->q
Answer:
I think the answer is 2.) p^q
Step-by-step explanation:
hope this helps if it is wrong let me know have a blessed day
p → q represents “if p then q" represents "If x = 4, then y = −2”
Therefore, the correct representation is:
Thus Option 3 is correct. 3.) p → q
Given :Let p: x = 4 Let q: y = −2
To Find Which represents "If x = 4, then y = −2”?
we know that:
1. p ∧ q represents “p and q”
2.p ∨ q represents “p or q (or both)
3.p → q represents “if p then q”
4. p ↔ q represents “p if and only if q"
The statement "If x = 4, then y = -2" can be represented by the conditional statement "p → q" which reads "p implies q" or "if p, then q."
In the given representation:
p: x = 4
q: y = −2
The conditional statement "p → q" means that if x is equal to 4 (p is true), then y is equal to -2 (q is true).
So, we can see that p → q represents “if p then q" represents "If x = 4, then y = −2”
Therefore, the correct representation is:
Thus Option 3 is correct. 3.) p → q
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The width of a rectangle is 32 inches. The width of the rectangle decreased by 8 inches and its length also changed. The area of the rectangle remains the same, 1,440 square inches. What is the new length of the rectangle?
Answer:
60 in
Step-by-step explanation:
Area = length x width
Area is constant at 1440 in^2
For first rectangle: W1 and L1
For second rectangle: W2 and L2
W1 = 32 in
W2 = W1 - 8 in = 24 in
1440 in^2 = L1 x 32 in = L2 x 24 in
L1 = 45 in
L2 = 60 in
Mean Time Between Failures (MTBF), Mean Time To Replacement (MTTR), and Mean Time To Failure (MTTF) are useful metrics for evaluating the reliability and availability of a storage resource. Explore these concepts by answering the questions about devices with the following metrics. Given: MTTF = 3 years, MTTR = 1 day (a) Calculate (i) MTBF and (ii) availability. (b) What happens to availability as the MTTR approaches 0? Is this a realistic situation? (c) What happens to availability as the MTTR gets very high, i.e., a device is difficult to repair? Does this imply the device has low availability?
MTTF = 3 years * 365 days/year * 24 hours/day = 26,280 hours, MTTR = 1 day * 24 hours/day = 24 hours.As MTTR approaches 0, the availability will increase, approaching 100%. If the MTTR gets very high, it means that the device is difficult to repair, and the availability will decrease.
To calculate MTBF and availability for a storage resource with an MTTF of 3 years and an MTTR of 1 day, we will follow these steps:
Step 1: Convert MTTF and MTTR to the same unit of measurement. In this case, we will convert both to hours.
MTTF = 3 years * 365 days/year * 24 hours/day = 26,280 hours
MTTR = 1 day * 24 hours/day = 24 hours
Step 2: Calculate MTBF using the formula: MTBF = MTTF + MTTR
MTBF = 26,280 hours + 24 hours = 26,304 hours
Step 3: Calculate availability using the formula: Availability = MTTF / (MTTF + MTTR)
Availability = 26,280 hours / (26,280 hours + 24 hours) = 26,280 / 26,304 ≈ 0.9991, or approximately 99.91%.
As MTTR approaches 0, the availability will increase, approaching 100%. However, this is not a realistic situation, as repair and replacement times can never truly be zero in the real world. There will always be some amount of time required to repair or replace a device.
If the MTTR gets very high, it means that the device is difficult to repair, and the availability will decrease. This implies that the device has low availability, as the time to repair or replace the device is a significant factor in determining its overall reliability and availability. A device with a high MTTR is less desirable because it will be unavailable for extended periods when it does fail, negatively impacting the system it is a part of.
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Reflect ABC across the y-axis.
A (0,2) B (3, -2) C(-3,-2)
Answer: just graph it on the y-axis
Step-by-step explanation:
The length of a rectangle i 2cm greater than the width of the rectangle. The perimeter of the rectangle i 24cm
The length of the rectangle is 7 cm and the width is 5 cm.
Perimeter of a rectangle:The whole distance covered by the rectangle's borders or its sides is known as its perimeter. As we know the rectangle will have 4 sides then the perimeter of the rectangle will be equal to the total of its four sides. And the unit will be in meters, centimeters, inches, feet, etc.
The formula for the Perimeter of the rectangle is given by
Perimeter = 2( Length + Width )Here we have
The length of a rectangle is 2cm greater than the width of the rectangle
And perimeter of the rectangle = 24 cm
Let x be the width of the rectangle
From the given data,
Length of the rectangle = (x + 2) cm
As we know Perimeter of rectangle = 2(Length+width)
=> Perimeter of rectangle = 2(x+2 + x) = 2(2x +2)
From the given data,
Perimeter of rectangle = 24cm
=> 2(2x +2) = 24 cm
=> (2x +2) = 12 [ Divided by 2 into both sides ]
=> 2x = 12 - 2
=> 2x = 10
=> x = 5 [ divided by 2 into both sides ]
Length of rectangle, (x+2) = 5 + 2 = 7 cm
Therefore,
The length of the rectangle is 7 cm and the width is 5 cm.
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The length of a rectangle is the sum of the width and 3. The area of the rectangle is 28 square units. What is the length, in units, of the rectangle?
Answer:
Length is 7 units
Step by Step explanation:
Assuming you mean the Area is 28 square units
Then
L = w + 3
A = w(w + 3)
28 = w2 + 3w
We can subtract 28 from both sides of the equation to obtain the Quadratic
w2 + 3w - 28 = 0
Factoring to give
(w + 7)(w - 4) = 0
The width cannot be -7
w = 4
L = w + 3
L = 4 + 3 = 7
The width of the rectangle is 4 units and the length of the rectangle is 7 unites.
Need help with #11 please
Answer: The graph is a linear graph or linear function in the form y= mx + b where m is the slope and b is the y-intercept. You could plot the points (0,5) (1,4) (2,3) (4,1) and draw a straight line through them.
Step-by-step explanation:
The equation y= 5-x can be rewrite as y = -1x + 5 and it can be identify as a linear equation in slope intercept form. Now you could plot in any value of x and solve for y.
x y (x,y)
0 5 (0,5) If you put in 0 for x y will be 5
1 4 (1,4) if you put in 1 for x, y will be 4
2 3 (2,3) if you put in 2 for x, y will be 3
4 1 (4,1) if you put in 4 for x, y will be 1
5 0 (5,0) if you put in 5 for x y will be 0.
CAN ANYONE HELP ME NOW PLEASE ASAP!!
Answer:
885735
Step-by-step explanation:
Each number is being multiplied by 3
5, 15, 45, 135, 405, 1215, 3645, 10935, 32805, 98415, 295245, 885735
Answer:
885735
Step-by-step explanation:
Its multiplying by 3
5, 15 ,45 ,135 ,405 ,1215 ,3645 ,10936 ,32805, 98415, 295245, 885735
A farmer has a cylindrical silo he uses to store corn. The silo has a height of 50 feet and a radius of 12 feet. How many cubic feet of corn can the silo hold? Use 3. 14 for pi
Answer:
The silo holds 22608 ft³ of the corn
Step-by-step explanation:
Assume the cylindrical silo is a perfect cylinder.
Volume of cylinder = πr²h
Volume = 3.14 × (12)² × 50
Volume = 22608 cubic feet
Find 15.75 ÷ 0.25 using a Giant One.
Answer:
its 63
Step-by-step explanation:
Answer:
\( \frac{15.75}{0.25} = \frac{1575}{25} \\ = 63\)
...............................
What is the slope and y intercept I need it as fast as possible
Answer: y = 1/4x + 5
Step-by-step explanation:
Simply use the slope formula to find the slope, then plug in a point to y = mx + b to find the y-intercept.
Hope it helps :) and let me know if you want me to elaborate.
in a maths class,the girl to boy ratio is 7:5 if there are 20 boys,how many girls are there?
Answer:
28:20
Step-by-step explanation:
you just multiply 5 by 4 because 20 divided by 4 is 5 and then multiply 7 by 4
Answer:
Let total students be ‘X’
No of girls = (X-20)
Girls/Boys=7/5=(X-20)/20
7(20) =5(X-20)
140=5X-100
5X=240
X = 240/5
X =48
So, Total Students are 48
No of girls = (X-20) = 48-20 = 28
Step-by-step explanation:
!solve this!
−4x + 10 < 26
Answer:
−4x + 10 < 26
Step 1: Subtract 10 from both sides.
−4x + 10 − 10 < 26 − 10
−4x < 16
Step 2: Divide both sides by -4.
-4x/−4 < 16 /−4
x > −4
Answer:
x > −4
assuming you're solving for x:
solve using pemdas backwards, so basically sadmep :)
first subtract 10, and you end up with the equation -4x < 16.
Next is dividing the -4. Remember dividing by a negative number switches the sign direction, so the < becomes a >. So, your answer would be x > -4
prove that: tan[(π/4)+(x/2)] + tan[(π/4)-(x/2)]= 2secx
we will use the formula of tan(A+B)= (tanA+tanB)/(1-tanAtanB)
and tan(A-B)= (tanA-tanB)/(1+tanAtanB)
tan[(pie/4)+(x/2)]= [1+tan(x/2)]/[1-tan(x/2)] ......(1)
tan[(pie/4)-(x/2)]= [1-tan(x/2)]/[1+tan(x/2)]......(2)
now add the equation (1) and (2) which is LHS of question. So we get:
{[1+tan(x/2)]^2 + [1- tan(x/2)]^2}/1-tan^2(x/2)=2[1+tan^2(x/2)]/1-tan^2(x/2)= 2/cosx = 2secx =RHS
Hence proved.
A car rental agency charges $50 per week plus $0.50 per mile to rent a car.
a. Express the weekly cost to rent the car, f, as a function of the number of miles driven during the week, x.
b. How many miles did you drive during the week if the weekly cost to rent the car was $100?
It says its wrong is it?
Answer: Yes, it's wrong.
Step-by-step explanation:
In the equation, it was \(A=\pi r^{2}\)3 ft is the circle's diameter, and d is not the r.
r = d/2 = 3/2 = 1.5 ft
\(A=\pi r^{2}\\\)
≈ 3.14 x 1.5
= 4.71
Given integer vector x has 5 elements with values 4, 7, 3, 0, 8. what are the ending values in x? int i; for (i = 0; i < x.size() - 1; i) { x.at(i) = x.at(i 1); }
The ending values in vector `x` after executing the given code snippet would be `7 3 0 8 8`.
The given code snippet appears to be incorrect and incomplete. There are a few issues:
1. The loop condition is not properly defined. Instead of `i < x.size() - 1`, it should be `i < x.size() - 1` to ensure that `i` does not exceed the valid index range of the vector `x`.
2. The increment expression `i` is missing in the loop statement, causing an infinite loop since `i` never changes.
Assuming the correct loop condition is `i < x.size() - 1` and the missing increment expression is `i++`, let's correct the code:
cpp
#include <iostream>
#include <vector>
int main() {
std::vector<int> x = {4, 7, 3, 0, 8};
int i;
for (i = 0; i < x.size() - 1; i++) {
x.at(i) = x.at(i + 1);
}
// Printing the modified vector x
for (int element : x) {
std::cout << element << " ";
}
std::cout << std::endl;
return 0;
}
Now, running this corrected code will give the following output:
7 3 0 8 8
After executing the loop, the vector `x` will have the ending values `7, 3, 0, 8, 8`. The last element `x.at(4)` is assigned the value of `x.at(4 + 1)`, which is `8`.
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HELP PLSSS THIS IS HARD SOMEONE
Answer:
4
Step-by-step explanation:
a scale factor means how much something changes in length, area, or volume. it is somewhat like a multiplier. EF is 12 units long but E'F' is 3 so 12 ÷ 3 = a scale factor of 4
Sandra saves 9% of her salary for retirement. this year her salary was $3,000 more than in the previous year, and she saved $4,050. what was her salary in the previous year?
Answer:
She earned $42,000 in the previous year
Step-by-step explanation:
9% can be rewritten as 0.09
0.09x is 4050
divide both sides by 0.09
0.09x becomes x
4050 becomes 45,000
then we subtract 3,000 from 45,000 to find the previous years salary
7. Find the area of the rhombus. Express
your answer as a mixed number of
square centimeters in simplest form.
3 2/3cm
4½cm
a coin is flipped and die is rolled once. what is the probability of flipping a heads on the coin and rolling a 5 on the die? give your answer as a reduced fraction.
The probability of flipping a heads on the coin and rolling a 5 on the die is 1/12 if a coin is flipped and die is rolled once.
The sample space for the coin toss is {H,T}, so there are two possible outcomes. The favorable one is H.
The probability of flipping a heads on the coin is equal to 1/2.
Die has six faces, meaning six possible outcomes, but we’re only interested in one of those outcomes: that roll of a 5. That means that only 1 in 6 outcomes is desirable and we can write it as 1/6
The probability of rolling a 5 on the die is equal to 1/6.
Since a coin is flipped and die is rolled independently, the joint probability is a product of above probabilities.
Therefore, the probability of flipping a heads on the coin and rolling a 5 on the die equals
\(\frac{1}{2} \times \frac{1}{6}\\= \frac{1}{12}\)
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find the derivative of
2x - 1/(x - 1)^2
Answer:
\(\frac{dy}{dx} = 2 + \frac{2}{{(x - 1)}^{ 3} } \)
Step-by-step explanation:
\(let \: y = 2x - \frac{1}{(x - 1)^{2} } \\ \\ \implies \: y = 2x - {(x - 1)}^{ - 2} \\ \\ differentiating \: w.r.t. \: x \: on \: both \: sides \\ \\ \frac{dy}{dx} = \frac{d}{dx} (2x) - \frac{d}{dx} {(x - 1)}^{ - 2} \\ \\ \frac{dy}{dx} = 2\frac{d}{dx} (x) - \frac{d}{dx} {(x - 1)}^{ - 2} \\ \\ \frac{dy}{dx} = 2(1) - ( - 2) {(x - 1)}^{ - 2 - 1} \frac{d}{dx} (x - 1)\\ \\ \frac{dy}{dx} = 2 + 2 {(x - 1)}^{ - 3} (1 - 0)\\ \\ \frac{dy}{dx} = 2 + 2 {(x - 1)}^{ - 3} (1)\\ \\ \frac{dy}{dx} = 2 + \frac{2}{{(x - 1)}^{ 3} } \)
pls do both for ( brainlist, thanks, and a 5 star review)
Answer
2/3+5/6= is 1.5
Step-by-step explanation:
first do 2/3=0.66666666666
and 5/6=0.83333333333
then do 0.66666666666+0.83333333333=1.5
Answer:
#1: 1 1/2 and #2: 6 1/10
Step-by-step explanation:
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