Answer:
C {-4, 7}
Step-by-step explanation:
x2 – 3x – 28 = 0
(x+4)(x-7)=0
(x-7)=0 or (x+4)=0
x=7 or x=-4
9/16 as a decimal rounded to the nearest hundredth.
Answer:
0.56
Step-by-step explanation:
Defects in computer hard-drives will usually render the entire computer worthless. For a particular model, the percent defective in the past has been 1%. If a sample size of 400 is taken, what would the 95.5% lower control chart limit be?
Answer:
0.00005
Step-by-step explanation:
We have the average fraction defective as p = 1%
= 0.01
N = 100
Then 95.5% deviation = 2σ
From there we have,
σ = √p*(1-p)/n
When we input these values, into the formula, we will have
σ = √0.01(1-0.01)/100
= √0.01(0.99)/100
= √0.000099
= 0.00995
The LCL = p - 2σ
= 0.01 - 0.00995
= 0.00005
lower control chart limit be is 0.00005
The 95.5% lower control chart limit be is 0.0005.
Given,
The average fraction percent in the past defective as p = 1% = 0.01
Sample size N = 400
Then ,
According to the question ,
95.5% deviation = 2x
We have,
x = [tex]\frac{\sqrt{p (1-p)} }{n}[/tex]
We put these values, into the formula,
x = [tex]\frac{\sqrt{0.01 ( 1 - 0.01) } }{400}[/tex]
= [tex]= \frac{\sqrt{(0.01) (0.99)} }{400}[/tex]
= [tex]\frac{0.99}{400}[/tex]
= 0.0000245
The LCL = p - 2x
= 0.01 - 0.0000245
= 0.00005
The Lower control chart limit be is 0.00005
For the more information about Standard deviation click the link given below.
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Use the diagram to solve. What is 135% of 280? Percent Total 100% 5% 5% 5% 5% 5% 5% 596 13596 245
Answer:
B. 378
Step-by-step explanation:
hope this helps
Which inequality is graphed on the coordinate plane?
A. y ≥ -3x + 2
B. y ≤ -3x + 2
C. y > -3x + 2
D. y < -3x + 2
Answer:
The answer is (B)y ≤ -3x+2
The inequality is graphed on the coordinate plane is option B. y ≤ -3x + 2
What is inequality?Inequality is defined as the relation which makes a non-equal comparison between two given functions.
If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true.
Such values are called solutions to that equation or inequality.
A set of such values is called a solution set to the considered equation or inequality.
From the given figure of graphed function;
The inequality is graphed on the coordinate plane is
B. y ≤ -3x + 2
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What are the possible numbers of positive, negative, and complex zeros of f(x) = −x6 − x5 − x4 − 4x3 − 12x2 + 12
Answer:
Positive roots = 1 or 0
Negative roots = 0, 2, or 4
Complex roots = 0, 2, 4, or 6
Step-by-step explanation:
We are given the polynomial:
f(x) = -x⁶ - x⁵ - x⁴ - 4x³ − 12x² + 12
Now, by inspection, the highest degree is 6 and as such the polynomial is therefore a polynomial with more than 2 as a degree.
Applying Descartes Rule of Signs to the polynomial :
f(x) = -x⁶ - x⁵ - x⁴ - 4x³ − 12x² + 12
Signs are: - - - - - +
There is only 1 sign change and thus, it means there is 1 or 0 positive roots
To find number of negative roots, we will use f(-x);
f(−x) = -(−x)⁶ - (−x)⁵ - (−x)⁴ - 4(−x)³ − 12(−x)² + 12(−x)
f(-x) = -x⁶ + x⁵ - x⁴ + 4x³ − 12x² - 12
Signs are: - + - + - -
There are 4 sign changes and thus, it means there are 4, 2 or 0 negative roots
Thus; Complex roots = 0, 2, 4, or 6
For the function f(x)=-3(x-1) find f(0)
Evaluate the expression for the given value of the Variable
2x + 17 for x = 3
The expression equals
Answer:
23
Step-by-step explanation:
A recipe calls for the following spices: 18 teaspoon of turmeric, 18 teaspoon of ginger, and 14 teaspoon of cumin. What is the total quantity of these three spices?
Answer:
50 total
Step-by-step explanation:
when it's asking for a total you add the numbers together, and whatever number you get is your answer :)
sorry if it's wronggg :( !!
Total number of teaspoons quantity use is 50 teaspoons
Given information:
Number of teaspoons of turmeric = 18
Number of teaspoons of ginger = 18
Number of teaspoons of cumin = 14
Find:
Total number of teaspoons quantity use
Computation:
In the given question , we have to add all quantity
Total number of teaspoons quantity use = 18 + 18 + 14
Total number of teaspoons quantity use = 36 + 14
Total number of teaspoons quantity use = 50 teaspoons
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WILL GIVE BRAINLEST PLZZZ HELPP MEEEE
Answer: its C
Step-by-step explanation:
A runner runs 15 miles in 3 hours. Find the constant of proportionality (k), that relates the miles, y, to the time, x. Also, write the equation (y = kx) for this relationship.
Answer:
y=10x; y is the miles driven, x is the hours driven
Step-by-step explanation:
The independent variable is x, and the dependent variable is y.
Which of the following does not state a principle related to why ground wires are an effective safety device? O A. Electronic devices are protected from power surges by having insulated wires. B. Electricity will travel more easily through metal than through insulators. C. When enough electricity builds up, it could pass through highly resistant materials to get to the Earth. D. Electricity always wants to travel "downhill" toward the Earth.
A; electronic devices are protected from power surges by having insulated wires.
The option that does not state a principle related to why ground wires are an effective safety device is:
A. Electronic devices are protected from power surges by having insulated wires.
Insulated wires protect electronic equipment against power surges, however, this has nothing to do with the usefulness of ground wires as a safety precaution.
The idea of earth wires is to provide a safe conduit for electrical currents to go into the Earth, avoiding harmful electrical potential from building up.
Thus, options B, C, and D all state principles that are directly related to the effectveness of ground wires as a safety device.
Hence, the correct answer is A.
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HELP I NEED HELP WILL GIVE BRAINLYEST LOOK ILL GIVE YOU SO MANY POINTS
Answer:
the answer is -1/2
Step-by-step explanation:
please help me thanks
What is the slope?
What is the y intercept?
What is the equation of the line written in slope-intercept from?
Answer:
Step-by-step explanation:
As we move along the graph from x = 2 to x = 3 (a change of 1), y decreases from y = 100 to y = 0 (a change of -100). Thus, the slope of this line is
m = rise / run = -100/1 = -100.
The y-intercept is the point where the graph crosses the y-axis, and is (0, 200).
The equation of this line in slope-intercept form is y = -100x + 200
Cane buys candy in bulk and sells it at a 25% markup. If c represents the original cost of the candy, which expression represents the markup price?
Answer:
D
Step-by-step explanation:
which of the following sets of numbers could represent the three sides of a triangle?\
{10,21,32}
{13,17,32}
{14,24,40}
{13,16,27}
Answer:
14,24,40
Step-by-step explanation:
u cute
Answer:25 = 25 Right Triangle. 3, 7 and 9 Squaring each side = 9, 49 and 81. sum of the squares of the short sides = 9 + 49 = 58. 58 < 81 Obtuse Triangle. For determining if the 3 sides can even form a triangle, the triangle inequality theorem states that the longest side must be shorter than the sum of the other 2 sides.
Step-by-step explanation:
Can someone help me work this problem out?
Answer:
Yes
Step-by-step explanation:
According to the Triangle Inequality Theorem, if every combination of 2 sides is equal to the third remaining side, then it is a triangle.
3 + 7 > 8
8 + 3 > 7
8 + 7 > 3
Since all of these are true, that means overall, these 3 sides make a triangle.
Hope this helps!
What is the measure of DA? 15 90 105 165
Answer:
D. 165
Step-by-step explanation:
if A+n=180
75+90+n=180
165+n=180
n=180-165
n=15
A+n=180
A+15=180
A=180-15
A=165 (D)
2. Solve the problems below:
a) 4 - 5=
b) 4-(-5) =
c) -4-(-5) =
3. Write the variable expression that represents the word phra
Answer:
-1, 9, 1 i hope this is helpful
Parents are having twin babies and have put 7 unique name cards in a bowl.
* When the first baby is born, a parent draws a card and gives the baby that name.
* When the second baby is born, the parent draws a card from the remaining names.
How many combinations of names were possible for those two babies?
Answer: 42 Hope this helps!
Step-by-step explanation:
Okay so if there are 7 names lets just say the names are
1
2
3
4
5
6
7
The combos on names can be
1,2
1,3
1,4
1,5
1,6
1,7
2,1
2,3
2,4
2,5
2,6
2,7
3,1
3,2
3,4
3,5
3,6
3,7
4,1
4,2
4,3
4,5
4,6
4,7
5,1
5,2
5,3
5,4
5,6
5,7
6,1
6,2
6,3
6,4
6,5
6,7
7,1
7,2
7,3
7,4
7,5
7,6
There are 42 combos that can happen!
Help help help help
Answer: The solution to this is y=10x-4
Step-by-step explanation:
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Which situation describes a real-life rate?
Your uncle buys 2 gallons of milk and uses
of the milk to bake a cake.
O The computer has been on for 1.5 hours.
O A basketball player runs 10 feet down the court in 2 seconds.
O You run 2 miles on Monday, 3 miles on Tuesday, and 2 miles on Thursday.
Answer:
The computer has been on for 1.5 hours
what number is 12 times greater than the sum of the absolute values of the numbers 47 and (-56)
*GIVING BRAINLIEST*
Answer:
1,236
Step-by-step explanation:
The absolute value defines as being the positive of the number.
Absolute value of 47 - 47
Absolute value of (-56) - 56
47 + 56 = 103
103 * 12 = 1,236
Hope this helps!
whats 0.22 as a percentage
Answer:
22%
Step-by-step explanation:
convert the decimal to a percentage
Answer: 22%
Step-by-step explanation: Ok so we know there are 100 1s in the number 100. So if the decimal is .22 all you have to do is multiply that number times 100 using a calculator, or just by moving the decimal over two spaces to the right. This would give you the answer of 22% in this problem. Also, this trick works for all decimals when turning them into percents. Merry Christmas
help with this homework question pleaseeee
Answer:
b
Step-by-step explanation:
then it would be sss
15x5x3 find the volume with lxwxh
Answer:
225 units^3
Step-by-step explanation:
15x5x3 = 225
hope this helps, pls mark brainliest :D
Answer:
225
Step-by-step explanation:
What is the circumstance of the circle
Answer:
c=pie r squared is the equations and the answer is 50.27
Step-by-step explanation:
A Six packs of undershirt cost $13.98. This is $3.96 less the cost of buying six individual shirts if each undershirt cost the same amount how much does each undershirt cost when purchased individually?
Solve the inequality. Graph the solution.
d+12<19
The solution is
Answer:
d<7
Step-by-step explanation:
I need help immediately
Answer:
I am not sure
Step-by-step explanation:
