Answers
From the graph we can see that the function does not cross the x-axis at any point. Hence it has no x-intercept and thus no real zero. Both the zeros will be complex.
So, the correct answer is option B.
Function has exactly 2 complex solutions.
This means that 1 value of y is equal to two values of x
so the answer is D. Function f has two real solutions
Related Questions
-2(bx - 5) = 16
What’s does b and x equal?
Answers
You have the following equation given in the problem above:
-2(bx - 5) = 16
When you solve for bx, you have:
-2(bx - 5) = 16
-2bx-10=16
-2bx=26
bx=26/-2
bx=-13
When you solve for b, you obtain:
-2(bx - 5) = 16
-2bx=26
b=-(26/2x)
When yoo solve for x:
2bx=26
x=-(26/2b)
Easy 20 points!
Which expression finds the length of side y in this right triangle?
Answers
The Last one is your answer
Answer:
The last one i did this before
Step-by-step explanation:
10,456 to the nearest tenth
Answers
Answer: 10,5
Answer = 10,456.0
Hope this helped☺☺
20 points Easy question
what is 5/20 simplify
Answers
To simplify this question, we can just divide both sides of the fraction by 5.
5 / 5 = 1
20 / 5 = 4
So, the fully simplified fraction would be 1/4.
Hope this helps!
The lateral area of a cone is 555 pi cm^2. The radius is 15.1 cm. What is the slang height to the nearest tenth of a centimeter?
A- 36.8 cm
B- 11.7 cm
C- 83.8 cm
Answers
A = πrh
where r and h represent the radius and slant height, respectively. Substituting given values, you have
555π cm² = π(15.1 cm)h
h = (555/15.1) cm ≈ 36.8 cm
The appropriate selection is
A- 36.8 cm
A laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 199 milligrams with s = 16.5 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such eggs.
Answers
To construct a 95% confidence interval, use the formula: Confidence Interval = sample mean ± (critical value * (sample standard deviation / sqrt(sample size))). The confidence interval for the true mean cholesterol content is approximately 190.37 to 207.63 milligrams.
Explanation:To construct a 95% confidence interval for the true mean cholesterol content of all chicken eggs, we can use the formula:
Confidence Interval = sample mean ± (critical value * (sample standard deviation / sqrt(sample size)))
Given that the sample mean is 199 milligrams, the sample standard deviation is 16.5 milligrams, and the sample size is 12, we need to determine the critical value for a 95% confidence level. Since we have a small sample size, we need to use the t-distribution.
Using a t-table or a statistical calculator, we find that the critical value for a 95% confidence level with a sample size of 12 is approximately 2.179.
Substituting the values into the formula, we get:
Confidence Interval = 199 ± (2.179 * (16.5 / sqrt(12)))
Simplifying and calculating, the confidence interval is approximately 190.37 to 207.63 milligrams.
To construct a 95% confidence interval for the mean cholesterol content of chicken eggs, we use the sample data provided, along with the t-distribution for a sample size less than 30, and apply the standard formula for confidence intervals.
Explanation:The question asks to construct a 95% confidence interval for the true mean cholesterol content of chicken eggs based on the given sample data. To calculate this, we first need to use the sample mean (μ), which is 199 milligrams, and the standard deviation (s), which is 16.5 milligrams. Since the sample size is less than 30, we will use the t-distribution to find the critical value. With n=12, the degrees of freedom (df) are 11.
First, look up the critical t-value for df=11 at a 95% confidence level. Let's assume it is approximately 2.201. Next, calculate the standard error (SE) of the mean by dividing the sample standard deviation by the square root of the sample size. That's SE = 16.5 / sqrt(12).
Now, we can construct the confidence interval using the formula: mean ± (t-value * SE). Plugging in the numbers, we get 199 ± (2.201 * SE).
d. A 95 percent confidence interval means that if we took many samples and built a confidence interval from each of them, we'd expect about 95 percent of those intervals to contain the true mean cholesterol level of all such eggs. Because of sample variability, the interval provides a range of values within which we are 95% confident the true mean lies.
is 4,286 divisqble by 6
Answers
Which expression is equivalent to 10x^6y^12/-5x^-2y^-6 ? Assume . –50x8y18 –2x8y18 –2x12y72 5x8y18
Answers
Answer:
Option B is correct, i.e. -2 x^8 y^18.
Step-by-step explanation:
To find the equivalent expression to (10)(x^6)(y^12) / (-5)(x^-2)(y^-6)
Step 1: simplify numerical terms
(10) / (-5) = -2
Step 2: simplify exponents of x-terms
(x^6) / (x^-2) = (x^6) * (x^2) = x^(6+2) = x^8
Step 3: simplify exponents of y-terms
(y^12) / (y^-6) = (y^12) * (y^6) = y^(12+6) = y^18
It means (10)(x^6)(y^12) / (-5)(x^-2)(y^-6) = -2 x^8 y^18
Hence, option B is correct, i.e. -2 x^8 y^18.
HELP ASAP How do I find the answer to this
Answers
[tex] \frac{CD}{BD} = \frac{BD}{AD} [/tex]
Notice that we know for our problem that [tex]BD=h[/tex]. Also, we can find the length of AD by subtracting CD from AC:
[tex]AD=AC-CD[/tex]
[tex]AD=25-16[/tex]
[tex]AD=9[/tex]
Now we can replace the values in our proportion:
[tex] \frac{CD}{BD} = \frac{BD}{AD} [/tex]
[tex] \frac{16}{h} = \frac{h}{9} [/tex]
Solving for [tex]h[/tex]:
[tex]h^2=(16)(9)[/tex]
[tex]h^2=144[/tex]
[tex]h= \sqrt{144} [/tex]
[tex]h=12[/tex]
We can conclude that the correct answer is: B. 12
Triangle BCD:
BD=h
CD=16
Triangle ABD:
BD=h
AD=AC-CD=25-16→AD=9
Suppose <CBD is x and the <ABD is y
x+y=90°
The <BCD must be equal to y; and the <BAD must be equal to x, then the triangles ABD and BCD are similars, because they have two congruent angles (x and y), so theirs sides must be proportionals:
Opposite to angle x / opposite to angle y
Triangle ABD Triangle BCD
BD / AD = CD / BD
Replacing values:
h/9=16/h
Solving for h. Cross multiplication:
(h)(h)=(9)(16)
h^(1+1)=144
h^2=144
sqrt(h^2)=sqrt(144)
h=12
Answer: The value of h in the figure is 12
The interior angles formed by the sides of a hexagon have measures that sum to 720 degrees. What is the measure of angle F?
Answers
in this case n = 6
so (6 - 2 ) x 180 = 4 x 180 = 720
x - 60 + x - 40 + 130 + 120 + 110 + x - 20 = 720
3x + 240 = 720
3x = 480
x = 160
m<F = x - 20 = 160 - 20 = 140
answer
<F = 140°
ralph is a electrician he charges an initial fee of 24$ , plus 24 per hour. If ralph earned 144$ on the job , how long did the job take.
Answers
mike purchased two blankets at $44.99 each, one mattress for $59.00 and a sheet for $19.99. The sales tax rate is 5.75%. what is the total purchase price, including sales tax?
Answers
The total purchase price, including sales tax, for the two blankets, one mattress, and one sheet that Mike purchased is $178.69.
Explanation:To work out the total purchase price, including sales tax, for the items Mike purchased, first, we need to calculate the total cost of the blankets, mattress, and sheet before tax:
Two blankets: 2 × $44.99 each = $89.98One mattress: $59.00One sheet: $19.99Add these amounts together to find the subtotal:
$89.98 + $59.00 + $19.99 = $168.97
Next, we compute the sales tax. Convert the percent to a decimal by moving the decimal point two places to the left (5.75% becomes 0.0575), and then multiply by the subtotal:
0.0575 × $168.97 = $9.7161
Round the sales tax to the nearest cent: $9.72
Finally, add the sales tax to the subtotal to get the total purchase price:
$168.97 + $9.72 = $178.69
Therefore, the total purchase price, including sales tax, is $178.69.
The Science Club went on a two-day field trip. The first day the members paid $30 for transportation plus $18 per ticket to the planetarium. The second day they paid $85 for transportation plus $15 per ticket to the geology museum. Write an expression to represent the total cost in dollars for two days for the n members of the club.
Answers
This simplifies to
c = 148n
Answer:
n(30 +18 +85 +15) , and if you slove the expression it'll be $148 dollars .
Step-by-step explanation:
Use the normal distribution of fish lengths for which the mean is 1111 inches and the standard deviation is 44 inches. assume the variable x is normally distributed. left parenthesis a right parenthesis(a) what percent of the fish are longer than 1212 inches? left parenthesis b right parenthesis(b) if 300300 fish are randomly selected, about how many would you expect to be shorter than 77 inches?
Answers
About 40% of the fish are longer than 12 inches.
(b) 300*P(x < 7) ≈ 48
about 48 of 300 fish could be expected to be shorter than 7 inches.
Type the correct answer in each blank. Use numerals instead of words. If necessary, use / for the fraction bar(s). John hosts an art workshop on the weekends. He has an average of 14 students in each session and charges a fee of $12 per session. He estimates that for every $2 increases in the fee, the average number of students reduces by 1. Complete the equation that models this scenario, where c(x) is the revenue generated and x is the number of $2 fee increases.
c(x) =_x^2 +_x+_
Answers
Therefore, we can conclude that his revenue is [tex]14 * 12[/tex] or [tex]168[/tex] bucks.
The session price goes up in a pattern of 2.
For example, from 12 the session price goes to 14, 16, 18 and so on.
As each jumps goes by 2, the amount of students drop by 1.
(i.e from 14 students the number decreases to 13, to 12 and so on.)
As we can see the revenue begins at 168 and continues upward until it reaches 200 dollars and then starts to descend.
This indicates that the U-turn or vertex of the revenue function is approximately 4200, where h represents 4, and k is 200.
To solve we can use Parabola.
⇒ Parabola: any point is at an equivalent separation from:
a settled point (the concentration ), and
a settled straight line (the directrix )
____________________________________________________
[tex]f (x) = a(x - h)^2 + k[/tex], where (h, k) is the vertex of the parabola.
⇒ [tex] \left \{ {{y=192} \atop {x=2}} \right. [/tex]
⇒ [tex]192 = a(2-4)^2+200[/tex]
⇒ [tex]-8=a(-2)^2[/tex]
⇒ [tex]-8=a*2^2[/tex]
⇒ [tex]-8=a*4[/tex]
⇒ [tex]-8=4a[/tex]
⇒ [tex] -\frac{8}{4} = \alpha [/tex]
⇒ [tex] \alpha = -2 [/tex]
Now lets do the final step: Simplifying
[tex]y-2(x-4)^2+200[/tex]
[tex]y=-2(x^2-8x+16)+200[/tex]
[tex]y=-2x^2+16x-32+200[/tex]
[tex]c(x) = -2x^2+16x+168[/tex]
Answer:
c(x) = -2x^2+16x+168
Step-by-step explanation:
just did it on edmentum
A line contains points M(1, 3) and N(5, 0). What is the slope of MN?
Answers
M (1,3)
N (5.0)
The slope of the line is given by:
m = (y2-y1) / (x2-x1)
Substituting values we have:
m = (0-3) / (5-1)
Rewriting we have:
m = -3 / 4
Answer:
The slope of the line is:
m = -3 / 4
The slope of the line that points M and N lies on is [tex]-\frac{3}{4}[/tex]
Given:
[tex]M(1, 3)\\N(5, 0)[/tex]
Formula for slope of a line is:
[tex]slope (m) = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
Let,
[tex]M(1, 3) = (x_1, y_1)\\N(5, 0) = (x_2, y_2)[/tex]
Substitute
[tex]Slope(m) = \frac{0-3}{5-1} \\= \frac{-3}{4} \\= -\frac{3}{4}[/tex]
Therefore, the slope of the line that contains M(1, 3) and N(5, 0) is: [tex]-\frac{3}{4}[/tex]
Learn more about slope here:
https://brainly.com/question/19381158
The circumference of a circle is 28 pi inches. What is the length of the radius of this circle?
Answers
Answer:
The length of the radius of this circle is 14 inches.
Step-by-step explanation:
Circumference of the circle = [tex]28\pi[/tex]
Let's take the length of the radius of the circle as [tex]a[/tex]
Circumference of a circle = [tex]2\pi r[/tex]
Where,
r is the radius of the circle.
Therefore,
[tex]2\pi a=28\pi[/tex]
[tex]2a=28[/tex]
[tex]a=14[/tex]
Therefore, the length of the radius of this circle is 14 inches.
What is 7/10 expressed as a decimal? Enter your answer in the box.
Answers
7 ÷ 10 = 0.7
The mean output of a certain type of amplifier is 117 watts with a variance of 100. if 42 amplifiers are sampled, what is the probability that the mean of the sample would differ from the population mean by less than 3.3 watts? round your answer to four decimal places.
Answers
P(113.7<x<120.3)
z-score is given by:
z=(x-μ)/σ
but
n=42
hence:
σ/√n
100/√42=15.43
thus
when x=113.7
z=(-3)/15.43
z=-0.1944
P(z<-0.1944)=0.4247
when x=120.3
z=3.3/15.43
z=0.214
P(z<0.214)=0.5832
hence:
P(113.7<x<120.3)=0.5832-0.4247=0.1585
Tyler bought a large bag of peanuts at a baseball game. Is it more reasonable to say that the mass of the peanuts is 1 gram or 1 kilogram?
Answers
Or one Pound of peanuts? or kilograms
1 Kilo
Z = 6.8 e j 2.57 + 5.5 e j 2.64 put z in the form z = r ∠ θ , where r > 0 , θ is in degrees, and − 180 ∘ < θ ≤ 180 ∘ .
Answers
z = 12.29255119 ∠ 149.0434722°
_____
* You already need a calculator for the trig functions. You may as well use the other capabilities it offers.
Eight students were absent the following number of days in a year: 4,8,0,1,7,2,6,and 3. Decide if the range or interquartile range better describes the data set, and explain your reasoning.
Answers
The range is the better measure of variability because the data is arranged so that the spread of data is about the same from the beginning to the end.
There are not more numbers that fall in the middle half of the data when compared to the entire data set.
Can someone help me with this question, please?
Answers
The vertical stretch will make f look narrower than g, so the appropriate choice is ...
(B)
Solve the equation by factoring. z2 − 6z − 27 = 0
Answers
You must fine 2 number that multiply to equal -27 and add to equal -6
(x-9) (x+3)
Then equal the parts of the binomial to zero
x - 9 = 0
x + 3 = 0
You must get x by its self.
When you do so, you'll have the answer as -3 and 9
To solve the quadratic equation z² -6z - 27 = 0, factor it to get (z - 9)(z + 3) = 0. Using the Zero Product Property, we find that the solutions are z = 9 and z = -3.
Solving Quadratic Equations by Factoring
To solve the quadratic equation z ²
- 6z - 27 = 0 by factoring, we must find two numbers that add up to -6 and
multiply to -27. After identifying these numbers, we can factor the quadratic expression
into a product of two binomials and then apply the Zero Product Property to find the
values of z.
The two numbers that meet these criteria are -9 and 3, as (-9)*(3) = -27 and (-9)+(3) =
-6. Therefore, we can express the quadratic equation as:
(z - 9)(z + 3) = 0
By the Zero Product Property, we find the solutions to the equation by setting each
binomial equal to zero:
z - 9 = 0
z = 9
z + 3 = 0
z = -3
Thus, the solutions to the quadratic equation are z = 9 and z = -3. These are the z-values that satisfy the original equation.
the length of johns patio is 5 feet less than 3 times the length of howards patio .johns patio has a length of 40 feet . what is the length of howards patio
Answers
The easiest way of solving this problem is by setting up and solving an equation.
Let the length of Howard's patio be represented by X. Now we can get the following expressions
3 times the length of Howard's patio would be 3X (multiply by three).
5 feet less than 3 times the length of Howard's patio would be 3X - 5 (just subtract five).
Now we've found an expression that represents the length of John's patio. Knowing this we can set up and solve an equation.
[tex]3x - 5 = 40[/tex]
First add 5 to both sides of the equation.
[tex]3x = 40 + 5[/tex]
[tex]3x = 45[/tex]
Finally divide both sides by 3.
[tex]x = \frac{45}{3} = 15[/tex]
Therefore, the length of Howard's patio is 15 feet. The answer is 15 feet.
~ Hope this helps you!
Haseem was given the following enlargement. What is the perimeter, in centimeters, of the enlarged triangle?
Answers
22.5/5 = 4.5
So to find the other sides you would multiply 3 and 6 by 4.5
3 * 4.5 = 13.5
6 * 4.5 = 27
So all 3 lengths of the triangle are 22.5, 13.5, and 27
To find the perimeter you add all
22.5 + 13.5 + 27 = 63
Your answer is 63
The front wall of your shed is in the shape of a trapezoid. The bottom measures 22 feet, the top measures 20 feet, and the height is 10 feet. Calculate the area of the front wall of your shed.
Answers
A = (1/2)×(b₁ +b₂)×h
Substitute the given information and evaluate.
A = (1/2)×(22 ft +20 ft)×(10 ft)
A = (1/2)×(42 ft)×(10 ft)
A = (21 ft)×(10 ft)
A = 210 ft²
The area of the front wall of your shed is 210 ft².
Answer:
the answer on edge is D. 66^2
Step-by-step explanation:
ln(2m 8th power) exapnad in logarithmic expression
Answers
[tex]\Longrightarrow \,\, \ln(a\,b)=\ln(a)+\ln(b)[/tex]
[tex]\Longrightarrow \,\, \ln(a^{b})=b\ln(a)[/tex]
Your expression makes use of both of these rules.
[tex]\ln(2m^{8})=\ln(2)+\ln(m^{8})=\ln(2)+8\ln(m)[/tex]
The expanded form is
[tex]\ln(2)+8\ln(m)[/tex]
If 555 is divided by 2, what is the remainder? A) 1 B) 2 C) 3 D) 5
Answers
If 555 is divided by 2 then the quotient is 277 and the remainder is 1.
2 goes into 15 at most 7 times (Last step of long division).
Good luck :)
Step-by-step explanation:
If 555 is divided by 2 then the quotient is 277 and remainder is 1.
PLEASE HELP ME ILL GIVE U A BRAINLIST a man who is 6 feet tall cats a shadow that is 15 feet long.A tree casts a similar shadow is 22 FT how tall is the tree?
Answers
Answer: 13
Here are the steps:
First we subtract 15 from 22 and then got 7
15 - 22 = 7
Finally we Add 7 + 6 = 13
Which is our final answer
I hope I helped
-Chris.