Answer:
0,
The range of f(x) is [0,∞),
Step-by-step explanation:
Find the perimeter and area of the figure.
4
4
8
6
12
perimeter - 60 units
area - 116 units
perimeter - 54 units
area - 112 units?
perimeter - 48 units
area - 116 units?
perimeter - 116 units
area - 60 units?
Answer:
Perimeter: 60
Area: 116
PLEASE HELP ASAP WILL MARK BRAINLIEST ✨
Answer:
12 | 52 | 64 |
27 | 59 | 86 |
39 | 111 | 150 |
I attempted making a chart with the answers
A sandbox is 2.5 m wide and 3.5m long
how much does it take to fill 0.3 m height.
Answer:
2.55
Step-by-step explanation:
Which of the functions below could have created this graph?
Answer:
c
Step-by-step explanation:
6 2/12+2 1/2=
4 1/8+4 1/3=
10 5/6-2 3/4=
9 2/3-1 3/8=
Answer:
Just use a calculator.
8.66666666667
8.45833333333
8.08333333333
8.29166666667
Step-by-step explanation:
In triangle XYZ, the measure of angle Z is 42°, and the measure of angle Y is 68.4°. What is the measure of angle X?
9514 1404 393
Answer:
69.6°
Step-by-step explanation:
The sum of angles in a triangle is 180°, so angle X is ...
∠X = 180° -∠Y -∠Z
∠X = 180° -68.4° -42°
∠X = 69.6°
for what value of x is the equation below true?
x2+4x +5=0
Hi there!
[tex]\large\boxed{\text{None.}}[/tex]
Using the discriminant formula, we can determine if this equation is ever true:
b² - 4ac
Plug in the a, b, and c values from the equation:
(4)² - 4(1)(5)
16 - 20 = -4 < 0
Since the discriminant is less than 0, there are no zeros to the equation. Thus, the equation is never true.
A circle has a diameter of 41 centimeters. Which equation can be used to find the radius of this circle?
Answer:
Equation to find radius = Diameter divided by 2
Area is 1319.585
Step-by-step explanation:
Diameter = 41 cm
Radius = 41÷2 = 20.5cm
Area = πr^2
Area = 3.14×(20.5)^2
Area = 3.14×420.25
Area = 1319.585cm^2
someone help me please:)
9514 1404 393
Answer:
(12, 4)
Step-by-step explanation:
The point (12, 4) is the only one in the doubly-shaded area of the graph. Of the choices offered, it is the only one that is a solution.
__
I prefer to use a graphing calculator to draw the graph and plot the points. That is more interesting to me than evaluating the inequalities over and over.
Here, we find the first inequality is only satisfied by the first point. We can rewrite it so we're not messing with fractions.
y ≥ -5/6x +2
6y ≥ -5x +12 . . . . multiply by 6
5x +6y ≥ 12 . . . . . add 5x
Now, to check the points:
(12, 4) -- 5(12) +6(4) ≥ 12 . . . true
(0, -2) -- 5(0) +6(-2) ≥ 12 . . . not true
(6, -7) -- 5(6) +6(-7) ≥ 12 . . . not true
(-12, 7) -- 5(-12) +6(7) ≥ 12 . . . not true
Just to make sure, we can use the first point in the second inequality:
(12, 4) -- 4 ≤ 5(12) -1 . . . true
The point (12, 4) would be a solution to the two inequalities.
A meteoroid moving at a constant speed travels 6 7/8 miles in 30 seconds. How far does the meteoroid travel in 1 second?
Answer:
k
Step-by-step explanation:
k
8%
Area of a circle
Find the area of a circle with a radius of 8.
Either enter an exact answer in terms of me or use
3.14 for n and enter your answer as a decimal.
units
Answer:
Area=200.96.
Step-by-step explanation:
A=3.14×8^2.
A=3.14×64.
A=200.96 or A=201.
besties help what's 84÷n=6
Answer:
14
Step-by-step explanation:
When one encounters a problem like this all one must do is divide the number to the left (84) by the number on the right (6) then to double check divide the outcome by the number on the left or multiply the outcome by the one on the right.
Feel free to check the equations below:
84 divided by 6 = 14
84 divided by 14 = 6
14 times 6 = 84
84 ÷ 14 = 6
A sample of 50 potential customers was asked to use your new product and the product of the leading competitor. After one week, they were asked to indicate which product they preferred. In the sample, 30 potential customers said that they preferred your product. (a) Find the sample proportion. (5 points) (b) Find the 95% confidence interval for the proportion of potential customers who prefer your product. (10 points) (c) If you want the 95% maximum likely error to be 0.08 or less, what would you choose for a sample size
Answer:
a) The sample proportion is of 0.6.
b) The 95% confidence interval for the proportion of potential customers who prefer your product is (0.4642, 0.7358).
c) A sample size of 145 is needed.
Step-by-step explanation:
(a) Find the sample proportion.
30 out of 50. So
[tex]\pi = \frac{30}{50} = 0.6[/tex]
The sample proportion is of 0.6.
(b) Find the 95% confidence interval for the proportion of potential customers who prefer your product.
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
For this problem, we have that:
[tex]n = 50, \pi = 0.6[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6 - 1.96\sqrt{\frac{0.6*0.4}{50}} = 0.4642[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6 + 1.96\sqrt{\frac{0.6*0.4}{50}} = 0.7358[/tex]
The 95% confidence interval for the proportion of potential customers who prefer your product is (0.4642, 0.7358).
(c) If you want the 95% maximum likely error to be 0.08 or less, what would you choose for a sample size
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
We need a sample size of n, and n is found when M = 0.08. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.08 = 1.96\sqrt{\frac{0.6*0.4}{n}}[/tex]
[tex]0.08\sqrt{n} = 1.96*sqrt{0.6*0.4}[/tex]
[tex]\sqrt{n} = \frac{1.96*sqrt{0.6*0.4}}{0.08}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96*sqrt{0.6*0.4}}{0.08})^2[/tex]
[tex]n = 144.1[/tex]
Rounding up
A sample size of 145 is needed.
Martin had a lemonade stand in the summer. He sold 8 drinks every hour. How much time would it take Martin to sell 32 drinks? (just put the number in the answer)
Answer:
4 hours
Step-by-step explanation:
32/8=4
Answer:
4 Hours
Step-by-step explanation:
just divide 32 by 8
I NEED HELP ASAP
FIND THE VAULE OF H IN THE FOLLOWING FIGURE
140°+h=180°
h=180°-140°
h=40°
Consider the graph showing two functions.
Which answer can be used to find the solution to the system of equations?
A. x= 3/x
B. x= 9/x
C. 0= 3/x + x
D 0= 9/x + x
Answer:
B
Step-by-step explanation:
I took the test but all you need to do is find the intersecting point with your axis to get your possible answers.
Hope this helps <3
Mr. Smith is painting the wall but not the door. What is the area of the wall?
Answer:
200.5 ft
Step-by-step explanation:
You get the area of the wall: 18*12.5=225
You get the area of the door: 7*3.5=24.5
Finally, you subtract the area of the wall from the area of the door and get: 200.5 as your final answer.
Hope this helped!!
i believe its 24.5 i hope ths was right
What is 3/4 in decimal form?
can someone please help me with this
Answer:
(2,2)
Step-by-step explanation:
hope it helps u good night
1 poin
You are applying for a credit card. Discover will charge you 14% ,Visa will
charge you 12% interest, and Master Card would charge you 10 % interest.
(you pay interest on balances owed to the credit card company). Which
card would you choose? *
Discover
Mastercard
Visa
Answer:
master card
Step-by-step explanation:
Cause master card would charge me low interest from the rest of the cards.
So ,to save money I would choose master card
Solve the proportion 3/x+1 = 1+2
Answer:
x = 5
Common denominator of 3/x+1 to 1/2
If the numerator is 3 times, then so is the denominator in a proportion.
3/1=x+1/2
x+1 must equal 6 for the proportion to be equal to 1/2.
6-1=5, so x is 5.
Find the inverse of square root f(n) = n – 3.
Of(n) = (n + 3)
Of-1 (n) = yn +1
Of-1 (n) = -n° +1
Of-1 (n) = -n3 – 3
Answer:
[tex]f'(n) = n + 3[/tex]
Step-by-step explanation:
Given
[tex]f(n) = n - 3[/tex]
Required
The inverse
[tex]f(n) = n - 3[/tex]
Replace f(n) with y
[tex]y = n - 3[/tex]
Swap positions of y and n
[tex]n = y - 3[/tex]
Make y the subject
[tex]y = n + 3[/tex]
Replace y with f'(n)
[tex]f'(n) = n + 3[/tex]
Simplify the epression.
-1/2 (-5/6 + 1/3)
o 5/12 + 1/3
o 5/12 - 1/6
o -5/12 + 1/3
o -5/12 + 1/6
need help fast plz!
Answer:
2/9 = 0.222 (this is repeating) 3/8 = 0.375 -- not repeating 5/6 = 0.83333 (this is repeating) 5/4 = 1.25 -- not repeating answer is : 2/9 and 5/6
Step-by-step explanation:
|2x-3|=2
What is x?
Pls Help I need help very very BADDDDD!
Answer:
Hey! Hope this helps!
Step-by-step explanation:
Have an awesome Friday <3
Given the equation 3x^2−22x + 34 = −1
Which type of factoring would you use to solve this polynomial for its roots?
Question 1 options:
Quadratic Trinomial a = 1
Quadratic Trinomial a ≠ 1
Grouping
Difference of Squares
Answer:
3
Answer:
Step-by-step explanation:
3x² - 22x + 34 = -1
I wouldn't factor it at all. The Quadratic Formula always works, and there 's no guessing.
Quadratic formula
x = [22 ± √(22² – 4·3·35)] / [2·3]
= [22 ± √64] / 6
= [22 ± 8] /6
= 7/3, 5
please help me asap
Step-by-step explanation:
the area of a parallelogram is
base × height.
so,
87 × 18.6 = 1,618.2 cm²
please help with this math problem
Answer:
7, 15
Step-by-step explanation:
hope it can help you
Step-by-step explanation:
14/2 =7 so
(x+7)^2 + [ ]
if you were to multiply just the (x+7)^2 term it would look like x^2 +14x+49, but we need that final term to be equal to 64, so you can add 15 on to the end to make up for the gap.
This should get you
f(x) = (x+7)^2 + 15
Find the missing side. If necessary,
round to the nearest hundredth.
c = [?]
a = 5
b = 8
Answer:
can u tell of which shape these sides are ??
function q has zeros of -3 and 8 and passes through the y-axis at the point (0,12). the rate of change of function q is -3/2 on the interval (?,?). answer for the ?’s
Answer:
Step-by-step explanation:
"function q has zeros of -3 and 8"
q(x) = a(x+3)(x-8)
"q passes through the y-axis at the point (0,12)"
a(0+3)(0-8) = 12
a = -½
q(x) = -½(x+3)(x-8) = -½x² + 2.5x + 12
q'(x) = -x+2.5
-x+2.5 = -1.5
x = 4
rate of change is -1.5 at the point (4,14).
What is an equation of the line that passes through the point (8,-8)(8,−8) and is perpendicular to the line 4x-3y=184x−3y=18?
Answer:
The equation of the line is [tex]y = -\frac{3x}{4} - 2[/tex]
Step-by-step explanation:
Equation of a line:
The equation of a line has the following format:
[tex]y = mx + b[/tex]
In which m is the slope and b is the y-intercept.
Perpendicular lines:
When two lines are perpendicular, the multiplication of their slopes is -1.
Perpendicular to the line 4x-3y=18
First, we place this line into the format, to find the slope:
[tex]4x - 3y = 18[/tex]
[tex]3y = 4x - 18[/tex]
[tex]y = \frac{4x}{3} - 6[/tex]
This line has slope 4/3. So, for the perpendicular line, the slope will be of m as such:
[tex]\frac{4m}{3} = -1[/tex]
[tex]4m = -3[/tex]
[tex]m = -\frac{3}{4}[/tex]
So the desired line will have an equation in the following format:
[tex]y = -\frac{3x}{4} + b[/tex]
Passes through the point (8,-8)
We use this to find b. This point means that when [tex]x = 8, y = -8[/tex]. So
[tex]y = -\frac{3x}{4} + b[/tex]
[tex]-8 = -\frac{3*8}{4} + b[/tex]
[tex]-8 = -6 + b[/tex]
[tex]b = -2[/tex]
So
[tex]y = -\frac{3x}{4} - 2[/tex]