I’m assuming you’re saying with an exponent. 7x^2+5
Answer:
7x^2+5
Step-by-step explanation:
Express the square root of -80 in its simplest terms.
A- cannot be determined
B- 8i sqrt 10
C- 4i sqrt 5
D- 2i sqrt 20
Answer:
C
Step-by-step explanation:
noting that [tex]\sqrt{-1}[/tex] = i
Given
[tex]\sqrt{-80}[/tex]
= [tex]\sqrt{16(-1)(5)}[/tex]
= [tex]\sqrt{16}[/tex] × [tex]\sqrt{-1}[/tex] × [tex]\sqrt{5}[/tex]
= 4i[tex]\sqrt{5}[/tex] → C
The square root of -80, expressed in simplest terms, is 4i sqrt 5, where 'i' is the imaginary unit.So,option C is correct.
To express the square root of -80 in its simplest terms, we need to use the imaginary unit i, which is defined as the square root of -1. We can rewrite -80 as -1 imes 80, and thus the square root of -80 as the square root of -1 times the square root of 80. We know that the square root of -1 is i, and the square root of 80 can be simplified to the square root of 16 times the square root of 5, which is 4 times the square root of 5. Combining these, we get:
√-80 = √(-1 times 80)
= √-1 times √80
= i times 4√5
= 4i√5.
The correct answer is C- 4i sqrt 5.
What are the solutions to the quadratic equation 6x2 + 24x = 0?
X = 0 and x = 4
x = 0 and x = -4
x = 6 and x = 4
x = 6 and x = -4
X=0 and x=-4 is the answer.
6(0)^2=0+24(0)=0
(6(-4)^2= 96) + (24(-4)=-96)=0.
Hope this helps and hope you have a great day and brainiest is always appreciated
Answer:
Solutions are x =0 and x= -4
Second option is correct.
Step-by-step explanation:
The given quadratic equation is [tex]6x^2+24x=0[/tex]
Factored out GCF
[tex]6x(x+4)=0[/tex]
Apply the Zero product property
[tex]6x=0,x+4=0[/tex]
Solve for x
[tex]x=0,x=-4[/tex]
Therefore, the solutions are x =0 and x= -4
Second option is correct.
Which value of x is in the solution set of 2x-3>11-5x
7x>14,x=2። is right answer i think
7x>14,x=2። is right answer i think
Answer:
Value of x > 2 is in the solution set of 2x-3>11-5x which means the value of x can be any value greater than 2.
Step-by-step explanation:
We need to find the value of x for the equation 2x-3>11-5x
2x-3>11-5x
Adding +5x on both sides:
2x+5x-3>11-5x+5x
7x-3>11
Adding +3 on both sides
7x-3+3>11+3
7x>14
Dividing by 7 on both sides:
7x/7>14/7
x>2
Value of x > 2 is in the solution set of 2x-3>11-5x which means the value of x can be any value greater than 2.
Find all solutions of the equation in the interval [0,2pi)
Tan theta -1=0
Write your answer in radians in terms of pi
Answer:
{π/4, 5π/4}
Step-by-step explanation:
Tan theta -1=0 could be rewritten as tan Ф = 1. The tangent function is 1 at Ф = π/4. As the period of the tangent function is π,
tan Ф = 1 will be true for Ф = π/4 + π, or (5/4)π.
The solution set is {π/4, 5π/4}.
The solutions of the given equation are -1, 0, -2, 0, -2 for the values of θ in the interval [0, 2π) respectively.
How the tangent ratio (tan) is defined?A tangent of an angle is defined as the ratio of the sine of the angle to the cosine of the angle.
tan θ = (sin θ)/(cos θ)
Solving the given equation:The given equation is
tan θ - 1 =0
solving for the values in between [0, 2π)
In this interval, the possible values for θ(in the case of tan) are 0, π/4, 3π/4, 5π/4, and 7π/4.
So, the solutions are:
for θ = 0,
⇒ tan (0) - 1 = -1
for θ = π/4,
⇒ tan(π/4) - 1 = 0
for θ = 3π/4,
⇒ tan(3π/4) - 1 = -2
for θ = 5π/4,
⇒ tan(5π/4) - 1 = 0
for θ = 7π/4,
⇒ tan(7π/4) - 1 = -2
Thus, the solution set for the given equation in the interval [0, 2π) is {-1, 0, -2, 0, -2}
Learn more about trigonometric ratios here:
https://brainly.com/question/8120556
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How do you factor this?
2z^2-12z+10=0
Answer:
This can't be factored right now! But if it is 2z^2+12z+10=0 than it will be factored like this:
2*(z+5)(z+1)
Step-by-step explanation:
2*(z^2+6z+5)=0
2*(z+5)(z+1)
[tex]2x^2-12z+10=0[/tex]
Common multiple is 2.
[tex]2(z^2-6z+5)=0[/tex]
Simplify inside parentheses.
[tex]2(z-5)(z-1)=0[/tex] is your answer
B = 7, a + b = 8, a+7 = 8 is an example of which property?
Multiplication property of equality
Addition property of equality
Subtraction property of equality
Division property of equality
Reflexive
Substitution
Distributive
Symmetric
Transitive
Answer:
The answer on edge is
A. the addition property of equality
D. the substitution property of equality
Step-by-step explanation:
cause its the answer
Help Please!!!!!!!!!!
Answer:
The graph in the attached figure
Step-by-step explanation:
we have
[tex]x+3y\leq 6[/tex]
Isolate the variable y
[tex]3y\leq 6-x[/tex]
[tex]y\leq 2-(1/3)x[/tex]
The solution is the shaded area below the solid line
Is below because the symbol of the inequality is less
Is a solid line because the line is included in the solution
The equation of the solid line is [tex]y=2-(1/3)x[/tex]
To graph the solution find the intercepts
Find the x-intercept (value of x when the value of y is equal to zero)
For y=0, x=6 --------> point (6,0)
Find the y-intercept (value of y when the value of x is equal to zero)
For x=0, y=2 -------> point (0,2)
Graph the inequality
see the attached figure
What is the slope of the line described by the equation below y = -6x + 3
Answer:
slope = - 6
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 6x + 3 ← is in slope- intercept form
with slope m = - 6
Answer: -6
Step-by-step explanation:
Ap3x
Find the total monthly cost for this plan to buy.
Loan Rate Insurance Repairs Gas Extra Miles Misc. Total Cost
$670.60 $200.00 warranty $82.00 $100.00 $62.50
Answer:
maybe this Total cost
=383.17+200+82+300+62.50
=1,027.67
Step-by-step explanation:
Answer:
$1115.10
Step-by-step explanation:
Total cost will be the sum of all individual expenses i.e.
[tex]670.60 + 200.00 + 82.00 + 100.00 + 62.50 = 1115.10[/tex]
∴ The total cost will be $1115.10
help me with this question please!
Answer:
I believe it is A. Truly sorry if I am incorrect.
Step-by-step explanation:
I used an online calculator.
The CORRECT answer is B
help me thx if u help me
The last option is the answer. x> -4
because as we can see from the number line x is larger than -4 and the dot on the -4 is not filled in so that mean that -4 is not included.
hence the answer is x> -4
Mode is used to ascertain what the most repeated data is in the data set.
True or False
The mode is the most frequently occurring value in a data set and is used to find the most repeated data. A data set can be bimodal if it has two modes. So the statement is true.
The statement is true: the mode is used to ascertain the most repeated data in the data set. It is a measure of central tendency that represents the value that occurs most frequently within a set of numbers. If a data set has two modes, it is referred to as bimodal. The mode can be especially useful for understanding the distribution of qualitative or categorical data.
Only number 10............
Answer: F. The Theoretical Probability is Greater than the Experimental Probability.
Step-by-step explanation: Theoretical probability gives you the odds of every outcome. With flipping a coin, the outcome odds of tails would always be 1/2. Experimental probability is the actual outcome that results from trials. During trials, tails was flipped 8 times. We can simplify 8/20 flips to find that tails was flipped 2/5 flips. In decimal form, 1/2 simbolizes .5 or 50%. 2/5 simbolizes .4 or 40%. The theoretical probability is greater than the experimental probability.
there are two trianagles triangle a has a base of 8 cm and a height of 10 cm triangle b has a base of 5 cm and a height of 13 cm which triangle has a larger area
Answer:
Step-by-step explanation:
Since angle A is 36°, then angle B is 90° − 36° = 54°.
To find an unknown side, say a, proceed as follows:
1. Make the unknown side the numerator of a fraction, and make the known side the denominator.
Unknown
Known = a
10
2. Name that function of the angle.
Unknown
Known = a
10 = sin 36°
3. Use the trigonometric Table to evaluate that function.
Unknown
Known = a
10 = sin 36° = .588
4. Solve for the unknown side.
a = 10 × .588 cm = 5.88 cm
Answer:
Triangle a is larger than triangle b
Step-by-step explanation:
Triangle a
8x10=80
80 divided by 2=40
Triangle b
5x13=65
65 divided by 2=32.5
80 > 32.5
Can I pls have brainliest?
How much is one ninth of three eights
Answer: 3/72, but read the explanantion!
Step-by-step explanation: Since we are trying to find 1/9 of 3/8, which is division, we use the method K, C , F
KCF stands for keep, change, flip.
1/9 (keep) = 1/9
divided by (change) = multiplied by
3/8 (flip) = 8/3
You then proceed with simple multiplication.
1/9*3/8= 3/72
3/72= 4.1666......
Hope this helps!!
Answer:
1/24
Step-by-step explanation:
Multiply:
1 3 1
--- * --- = -----
9 8 24
Which of these functions is a linear function? y + x = 5 y + x2 = -2 y = 2x3 + 1 3x2 + y2 = -4
Answer: First Option
[tex]y + x = 5[/tex]
Step-by-step explanation:
The linear functions have the following form
[tex]ax ^ n + bx ^ m = c[/tex]
Where a and b are constants and are real numbers and the exponent n and m is always equal to 1.
[tex]m=n=1[/tex]
In other words, the linear equations have the form
[tex]ax + by = c[/tex]
Identify among the options the functions that have this form
[tex]y + x = 5[/tex] is a linear function with [tex]a = 1[/tex], [tex]b = 1[/tex], [tex]c = 5[/tex] and [tex]m=n=1[/tex]
[tex]y + x^2 = -2[/tex] is not a linear function because [tex]n\neq 1[/tex].
[tex]y = 2x^3 + 1[/tex] is not a linear function because [tex]n\neq 1[/tex]
[tex]3x^2 + y^2 = -4[/tex] is not a linear function because [tex]n\neq 1[/tex] and [tex]m\neq 1[/tex]
Answer:
y + x = 5
Step-by-step explanation:
The graph of [tex]y+x=5[/tex] is a straight line
The graph of [tex]y+x^2=-2[/tex] is a parabola.
The graph of [tex]y=2x^3+1[/tex] is a non-linear curve.
The graph of
[tex]3x^2+y^2=-4[/tex] is an ellipse.
A graph of a linear function is a straight line.
Therefore y + x = 5 is the correct choice.
Katrina earns $9.25 per hour plus a 12% commission on any sales she makes. In one day, she worked for 11 hours, and she made $385 in sales. About how much money did Katrina earn that day?
Katrina earned approximately $147.95 that day.
To calculate how much money Katrina earned in one day, we need to take into account her hourly wage as well as her commission from sales. The first part is straightforward: She works 11 hours at an hourly rate of $9.25. To find this portion of her earnings, we multiply the number of hours by her hourly rate:
11 hours * $9.25 per hour = $101.75
Next, we calculate the commission from her sales. Katrina made $385 in sales and gets a 12% commission on these sales:
12% of $385 = 0.12 * $385 = $46.20
To find Katrina's total earnings for the day, we add her hourly earnings to her commission earnings:
$101.75 (hourly earnings) + $46.20 (commission) = $147.95
Therefore, Katrina earned approximately $147.95 that day
The least common denominator of 1/2, 1/8, and 1/10 is
A. 10.
B. 40.
C. 16.
D. 80.
the answer would be B
Answer: Option B.
Step-by-step explanation:
Descompose the denominator of each fraction into its corresponding prime factors. Then:
[tex]2=2*1\\8=2*2*2=2^3\\10=2*5[/tex]
Now you need to choose the commons a non-commons with the highest exponent. These are: 2³, 1 and 5.
Finally you need to multiply them to get that the Least common denominator of [tex]\frac{1}{2},\ \frac{1}{8}\ and\ \frac{1}{10}[/tex] is. Therefore, this is:
[tex]LCD=2^3*1*5\\LCD=40[/tex]
This matches with the option B.
find the third quartile using the box plot shown. A=42. B= 45 C=38. D=48
Answer:
The correct answer is B.
Which of the following are true statements about a regular polygon? Check all that apply.
The correct statements about any regular polygon are:
A. It is convex.D. Its sides are line segments.E. All of its sides are congruent.F. All of its angles are congruent.What is true about the regular polygon
A regular polygon is convex, meaning all its interior angles are less than 180 degrees.
Its sides are straight line segments.
In a regular polygon, all sides are of equal length (congruent).
Regular polygons have congruent interior angles, meaning all angles within the polygon are equal in measure.
Find the value of h for the parallelogram
Answer:
h = 5.488 in
Explanation:
Area of a parallelogram is calculated as follows:
Area = base * height
In the given parallelogram, we can note that the base is 9.8 in and the corresponding height is 5.6 in
This means that:
Area of parallelogram = 9.8 * 5.6 = 54.88 in²
This same area can be calculated using the other base (10 in) and its corresponding height (h)
This means that:
Area of parallelogram = 10 * h
54.88 = 10 * h
h = 5.488 in
Hope this helps :)
Jim’s work evaluating 2(3/5)^3 is shown below.
2(3/5)^3 = 2(3^3/5)
=2(3*3*3/5)
=2(27/5)
= 54/5
Which statement best describe Jim’s first error?
a: He did not multiply 3/5 by 2 before applying the power.
b: He did not apply the power to the denominator of 3/5
c: He did not evaluate 3^3 correctly.
d: He did not multiply 27/5 by 2 correctly.
Answer:
Option b.
Step-by-step explanation:
we have
[tex]2(\frac{3}{5})^{3}[/tex]
Evaluate
[tex]2(\frac{3}{5})^{3}=2(\frac{3^{3}}{5^{3}})\\ \\=2(\frac{27}{125})\\ \\=\frac{54}{125}[/tex]
therefore
He did not apply the power to the denominator of 3/5
Need help please answer this question
Answer:
C
Step-by-step explanation:
Substitute the given values for x and y into the expression
5 × ([tex]\frac{60}{6(5)}[/tex]) - 1
= 5 × ([tex]\frac{60}{30}[/tex]) - 1
= (5 × 2) - 1
= 10 - 1
= 9 → C
When planning her crops, Farmer Sue knows that her 15 acres can support apples and pecans. She wants to make $8,500 from her crops. She can make $1,050 per acre of apples (the variable a) and $2,500 per acre of pecans (the variable p). Which equation below would be a constraint in her system of equations? (1 point)
Answer:
A+P=15 or B
Step-by-step explanation:
Trust me u son of a gun. Alexa, play the one song with those guys in paris
Y=f(x)=16^x find f(x) when x=1/2
Answer:
4
Step-by-step explanation:
Using the rule of exponents
• [tex]a^{\frac{m}{n} }[/tex] ⇔ [tex]\sqrt[n]{a^{m} }[/tex]
f(x) = [tex]16^{\frac{1}{2} }[/tex] = [tex]\sqrt{16}[/tex] = 4
Answer:
f(1/2) = 4
Step-by-step explanation:
f(1/2) has the meaning of wherever you see x on the right hand side, you put in 1/2.
f(1/2) = 16^(1/2) = sqrt(16) [A power of 1/2 is a square root]
f(1/2) = 4
Answer: 4
Determine whether the two figures are similar. If so, give the similarity ratio of the smaller figure to the larger figure
Answer:
yes 1 : 8
Step-by-step explanation:
To determine if the figures are similar calculate the ratio of corresponding sides.
[tex]\frac{24}{3}[/tex] = 8
[tex]\frac{32}{4}[/tex] = 8
[tex]\frac{112}{14}[/tex] = 8
Since all 3 ratios are equal the figures are similar (SSS )
and the ratio small : large = 1 : 8
Brett rolls a number cube labeled from 1 to 6 and tosses a penny at the same time. What is the probability that he will roll an even number and toss heads?
Answer:
1/4
Step-by-step explanation:
We are informed that a cube labeled from 1 to 6 is rolled. The numbers on the faces of the cube are;
1, 2, 3, 4, 5, 6
The probability of rolling an even number is;
(total number of faces with even numbers) / (total number of faces)
The even numbers are;
2, 4, 6
The probability of rolling an even number is thus;
3/6 = 1/2
If a penny is tossed, the probability of landing heads is simply;
1/2
This is because there are only two possible outcomes; heads or tails with equal probability assuming the penny is fair.
now, the probability that he will roll an even number and toss heads is;
1/2 * 1/2 = 1/4
we simply find the product of the probabilities of the individual events since they are independent.
The SI prefix hecto- is used to designate what value of any unit?
A. 10 × 102
B. 10–5
C. 102
D. 106
Answer:
optioc C [tex]10^{2}[/tex]
Step-by-step explanation:
we know that
Hecto (h) is a decimal unit prefix in the metric system denoting a factor of one hundred
so
[tex]h=100=10^{2}[/tex]
Solve for the variable: 3.5x=32.2
What’s the variable?
Answer:
The variable is x.
The value of the variable is 9.2.
Step-by-step explanation:
The equation shows the variable x multiplied by 3.5 with the result of that multiplication being 32.2. In order to solve for x, you must "undo" that multiplication.
The definitions of the multiplicative inverse and of the multiplication identity element tell you how to do that. The multiplicative inverse of a number is its reciprocal: the multiplicative inverse of 3.5 is 1/3.5. Multiplying a number by its multiplicative inverse gives a result of 1. Here, that means ...
3.5 × (1/3.5) = 1
The property of the multiplicative identity element (1) is that anything multiplied by that is just that thing:
x · 1 = x
So, to solve this equation, you multiply both sides by the multiplicative inverse of 3.5:
3.5x = 32.2
(1/3.5)(3.5)x = (1/3.5)(32)
1x = 9.2 . . . . . carry out the multiplication
x = 9.2 . . . . . . recognize 1x = x
___
You will recognize that multiplying by 1/3.5 is the same as dividing by 3.5. In other words, we solve this equation by dividing it by the coefficient of x.
Answer:
The variable is x and x is equal to 9.2
Step-by-step explanation:
Keep in mind that a variable is a symbol put in place to represent an unknown value. In this case, our variable is "x."
In order to solve for x, we must isolate it. We can do this by dividing both sides of the equal sign by 3.5
3.5x ÷ 3.5 = 32.2 ÷ 3.5
Simplify.
x = 9.2
Help on this question. This is on Khan Academy
Answer:None of the above it would have to be that's what he pays in 9 months
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Akash is paying $79.99 each month for 3 months. 239.97 is the result of that, so there would be 239.97 less in his checking account.