Answers
x^2=9/18
x=sqrt(9/16)
x=3/4,-3/4
so the root of the quadratic equation are 3/4 and -3/4
Answer:
[tex]\frac34[/tex] and [tex]-\frac34[/tex]
Step-by-step explanation:
Hello!
We have to solve for x to find the roots of the quadratic.
Solve for x[tex]16x^2 = 9[/tex][tex]x^2 = \frac{9}{16}[/tex][tex]\sqrt{x^2} = \sqrt{\frac{9}{16}}[/tex][tex]x = \pm\frac{\sqrt9}{\sqrt{16}}[/tex][tex]x = \pm\frac34[/tex]The roots of the quadratic are [tex]\frac34[/tex] and [tex]-\frac34[/tex].
The roots of the quadratic is when the value of y is 0, or when the graph intersects the x-axis.
Related Questions
Which operator is best to determine whether x contains a value in the range of 10 through 57?
Answers
A recipe calls for of a cup of milk for 11 cookies. How many cups of milk are needed to make 99 cookies?
Answers
If 1 cup = 11 cookies then...
99 (cookies we need to make) divided by 11 (cookies each cup) we get 9.
I hope this helps!
1 cup for 11 cookies
9 cups for 99 cookies
Which function below is the inverse of f(x) = x2 − 9? ±square root of the quantity x plus 9 x squared over 9 ±three times the square root of x 1 over quantity x squared minus 9?
Answers
Answer:
Step-by-step explanation:
The first answer.
which system of equations represents the matrix shown below? See picture
Answers
What is the equation of the following graph? Write it in both slope-intercept form and standard form.
Answers
slope = (3-0)/(0+2) = 3/2 = 1.5
b = 3
equation in slope-intercept form
y = 1.5x + 3
equation in standard form
1.5x - y = -3
The equation of the graph is y = 3x + 9 in slope-intercept form and 3x - y = -9 in standard form.
Explanation:The equation of the graph can be written in slope-intercept form (y = mx + b) and standard form (ax + by = c).
Slope-intercept form: y = mx + bGiven slope (m) = 3 and y-intercept (b) = 9Substituting the values, the equation becomes: y = 3x + 9Standard form: ax + by = cRearranging the equation from slope-intercept form, we get: 3x - y = -9Learn more about Equation of a straight line here:https://brainly.com/question/31693341
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How do I solve this?? I'm lost
Answers
f(x) = 5x-7 does the job.
Use compatible numbers to solve the problem 326 divided by 44.
A 320 divided by 32 = 10
B 320 divided by 40 = 8
C 330 divided by 30 = 11
D 352 divided by 44 = 8
Answers
What constant would be added to the expression x2−7xx2−7x in order to make it a perfect square?
Answers
assuming ya mean [tex]x^2-7x[/tex]
since the quadratic coefient is 1, take 1/2 of the liner coeficient and square it
the linear coefient is -7
half of that is -7/2
squared we get 49/4
add that to get
[tex]x^2-7x+\frac{49}{4}[/tex]
it factors to
[tex](x-\frac{7}{2})(x-\frac{7}{2})[/tex] or [tex](x-\frac{7}{2})^2[/tex]
you must add [tex]\frac{49}{4}[/tex] to make it a perfect square
Question #12 assessment progress 30 percent suppose that the functions r and s are defined for all real numbers x as follows. =rx4x2 =sx2x
Answers
the price of a pack of gum today is 63 cents. this is 3 cents more than three times the price ten years ago. what was the price ten years ago?
Answers
Solve the equation a+b-c=180 for c
Answers
a + b - c = 180
So let’s subtract a and b from both sides:
-c = -a -b + 180
Now, multiply both sides by -1:
c = a + b - 180
Hope this helps!
Answer:
Step-by-step explanation:
we are given the equation a+b-c=180
Now to solve it for c we need to isolate the c
first step can be addition of c to both side
a+b-c+c=180+c
a+b=180+c
now in second step we subtract 180 from both sides to get
a+b-180=180+c-180
a+b-180 = c
c= a+b-180
Use the four-step procedure to solve the following problem. How much water must be added to a gallon of 10% saline solution to create a 2% solution?
Answers
How much water (x liters of 0% saline) must be added to make a 2% saline solution?
.10 * 1 + 0x = .02 * (1 +x)
.1 = .02 + .02x
.08 = .02x
x = 4 gallons of water must be added
Answer:
4 gallons of water should be added in 10% saline solution.
Step-by-step explanation:
Let x gallon of water is added in one gallon of 10% saline solution.
Therefore total volume of 10% saline solution will become (1 + x) gallons
Since concentration of water is 0% so equation will be
0.10(1) + 0(x) = .02(1 + x)
0.10 = 0.02(1 + x)
1 + x = [tex]\frac{0.10}{0.02}[/tex]
x + 1 = 5
x = 5 - 1
x = 4 gallons
Therefore, 4 gallons of water should be added to 10% saline solution to create 2% solution.
Solve for x, given the equation Square root of x minus 5 + 7 = 11
Answers
sqrt (x-5) = 11 -7
sqrt (x-5) = 4
x - 5 = 4^2
x - 5 = 16
x = 16 + 5
x = 21
The value of x will be equal to 21.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
The given expression will be solved as below:-
√(x-5) + 7 = 11
√(x-5) = 11 -7
√(x-5) = 4
x - 5 = 4^2
x - 5 = 16
x = 16 + 5
x = 21
Therefore, the value of x will be equal to 21.
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I need help of question #36
Answers
four more than the product of one and a number x
Answers
hope this helps
The equation would be "4 more" than 1*x. This would be (1 * x) + 4.
The answer to this expression would be x + 4.
Each interior angle of a regular polygon measures 120°. what is the name of the polygon?
Answers
(n - 2) x 180°
now we can substitute 120° into this formula
(n - 2) x 180° / n = 120° (because we're calculating each angle from the polygon, so we need to divide the equation by n)
(180n - 360) = 120n
180n - 120n = 360
60n = 360
n = 6
a 6 side polygon is hexagon.
Harvey collects rare marbles. He has 112 marbles in his collection. If he uses Seven Trees to hold all of the marbles, how many marbles will he display on three trays? Is tray hold an equal number of marbles answers at brainly.com
Answers
Final answer:
Harvey has 112 marbles distributed equally across seven trays. Each tray holds 16 marbles, therefore, on three trays, Harvey will display a total of 48 marbles.
Explanation:
Harvey has 112 marbles in his collection and uses seven trays to hold all of the marbles. To find out how many marbles Harvey will display on three trays, we need to divide the total number of marbles by the total number of trays to find out how many marbles each tray holds.
First, divide 112 marbles by 7 trays to find out how many marbles go on each tray. The calculation is as follows:
112 marbles ÷ 7 trays = 16 marbles per tray
Now that we know each tray holds 16 marbles, to find out how many marbles are displayed on three trays, we multiple the number of marbles per tray by the number of trays:
16 marbles per tray × 3 trays = 48 marbles
Therefore, Harvey will display 48 marbles on three trays.
what is 4 less than three sevenths of y written as an algebraic expression
Answers
3/7 of y = 3Y/7
subtract 4 from it we get
{(3Y/7)- 4}
hope this helps, Gastondekota! :-)
The algebraic expression for 'four less than three sevenths of y' is (3/7)y - 4. This involves finding three sevenths of y and then subtracting four.
Explanation:The phrase 'four less than three sevenths of y' is asking us to first find three sevenths of y, and then subtract four from that number. In algebra, this is represented as (3/7)y - 4. The expression (3/7)y means 'three sevenths of y', and the '- 4' indicates we are finding 'four less than' this quantity.
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If l and m are parallel, which pairs of angles are supplementary?
Answers
Pairs:
1 and 2
3 and 7
6 and 7
1 and 6
So therefore the answers would be:
1 and 2
3 and 7
6 and 7
Hope This Helps :)
Please mark as brainiest
Answer:
1 and 2
3 and 7
6 and 7
Step-by-step explanation:
Which grouping shows duple meter?
a. one two three four five, one two three four five
b. one two three four five six, one two three four five six
c. one two three, one two three
d. one two, one two, one two, one two?
Answers
Answer: D: ONE TWO, ONE TWO, ONE TWO, ONE TWO
Step-by-step explanation:
Convert 4 radians to degrees.
Answers
To convert radians to degrees, we have to multiply them by [tex]180/ \pi [/tex].
Let's multiply.
[tex]4*180/ \pi [/tex]
≈ 229.18311805
Please note that since we are using [tex] \pi [/tex], we need to use the approximation sign.
4 radians ≈ 229.18311805°
You can feel free to let me know if you have any questions regarding this!
Thanks!
- TetraFish
how would you solve 3x-4=9x-21
Answers
-6x = -17
x = -17/-6
x = 17/6
Subtract 9x from both sides.
3x - 9x - 4 = -21
Add 4 to both sides.
3x - 9x = -21 + 4
Simplify.
-6x = -17
Divide both sides by -6.
x = 17/6 AND 2 5/6
~Hope I helped!~
Mr. Weber drives to a landscape supply center to buy sand and gravel. He needs at least 2 lb of sand. The amount of gravel he will buy will be at least twice the amount of sand he will buy. The center has 6 lb of sand and 13 lb of gravel in stock.
The graph shows the feasible region, where x represents the number of pounds of sand and y represents the number of pounds of gravel.
Which ordered pairs meet all the constraints and make sense in the context of the situation?
Select each correct answer.
(2 1/2, 10)
(3, 12)
(4,6)
(5, 8 1/2)
Answers
Answer:
This is correct! answer is (2 1/2, 10) and (3/12)
Step-by-step explanation:
Is the correct answer E)1 ?
Answers
This is because its asking for which x-values would the y's be be constant. This would be the numbers greater than 2 because the line is constant.
matt ryan throws a ball 26 yards how many inches did he throw
Answers
Find the domain and range of the relation and determine whether it is a function. y=x2-3
Answers
If the first coordinate is not repeated, like in this example, were we have only (2, 1) and not also (2, 8), for instance, then the relation is called a function.
A relation sometimes has too many pairs to be expressed by listing all of them. in such cases we use formulas which describe all the pairs.
We are given the relation is [tex]y=x^2-3[/tex]. This means that all pairs of this relation, are such that the second coordinate, is the first one squared, minus 3.
So each pair of this relation is : [tex](x, x^2-3)[/tex]
For any x, [tex]x^2-3[/tex] is only one value,
for example, if x=10, y can only be [tex]x^2-3=10^2-3=97[/tex]
We cannot possibly have both (10, 97) and (10, 16), for example, because the formula does not allow that.
this means 10 does not repeat as a first pair in this relation, and nor does any other value.
this makes the relation a function
The Domain is the set of all possible values x can be. Clearly, x can be any value, because no x makes [tex]x^2-3[/tex] undefined
Answer: The relation is a function, with Domain all real numbers
The width of a rectangle is one half it's length. The perimeter is 54 cm. What are the width and the length of the rectangle?
Answers
Find the quotient of 5/31 divided by 15/23. Reduce your answer to the lowest fraction.
Answers
If a couple has two children, what is the probability that both are boys? assume that it is equally likely that a child is a boy or girl.
Answers
Dahlia is simplifying (3t)^4 using these steps:
(3t)^4= 3t*3t*3t*3t=3*3*3*3*t*t*t*t
Although Dahlia is correct so far, which step could she have used instead to simplify the expression ?
A. 3t^4=3t^4
B.3^4t=81t
C. 4(3t)=12t
D.3^4t^4=81t^4
Answers
Dahlia could have raised both the coefficient and variable to the power of 4
Simplifying exponential functionsGiven the exponential expression as shown below;
(3t)^4
This shows that we are to multiply 3t in 4 places to have;
(3t)^4 = (3t) * 3t * 3t * 3t
(3t)^4 = 3^4 * t^4
(3t)^4 = 81t^4
This shows that Dahlia could have raised both the coefficient and variable to the power of 4
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