Answer:
Step-by-step explanation:
25(w+10) + 13.5(w +10)
Answer:
25(w+10)+13.5(w+10)
Step-by-step explanation:
hope it helps
The Consumer Reports National Research Center conducted a telephone survey of 2000 adults to learn about the major economic concerns for the future (Consumer Reports, January 2009). The survey results showed that 1760 of the respondents think the future health of Social Security is a major economic concern. a. What is the point estimate of the population proportion of adults who think the future health of Social Security is a major economic concern (to 2 decimals)
Answer:
The point estimate is 0.88
Step-by-step explanation:
Given
[tex]n = 2000[/tex] -- sample size
[tex]x = 1760[/tex] -- adults who think future health of social security is a major economic concerm
Required
Determine the point estimate
This is calculated as:
[tex]\hat p= \frac{x}{n}[/tex]
[tex]\hat p= \frac{1760}{2000}[/tex]
[tex]\hat p = 0.88[/tex]
The point estimate is 0.88
Which statement is true concerning the vertex and axis of symmetry of h(x)=−2x2+8x?
The vertex is at (0, 0) and the axis of symmetry is x = 2.
The vertex is at (0, 0) and the axis of symmetry is y= 2.
The vertex is at (2, 8) and the axis of symmetry is x = 2.
The vertex is at (2, 2) and the axis of symmetry is y = 2.
Answer:
C.) The vertex is at (2, 8) and the axis of symmetry is x = 2.
Step-by-step explanation:
I got a 100 on edge
The vertex is at (2,8) and the axis of symmetry is x = 2
What is vertex and axis of symmetry of a curve?The vertex of a curve is the point where the curve passes its axis of symmetry. While the axis of symmetry is the line that divides the curve into two equal halves.
Analysis:
if y = a[tex]x^{2}[/tex]+bx +c. then the axis of symmetry occurs at [tex]\frac{-b}{2a}[/tex] and the vertex occurs at [tex]\frac{-b}{2a}[/tex] and the value of y at [tex]\frac{-b}{2a}[/tex].
comparing the above with the equation h(x) = -2[tex]x^{2}[/tex]+8x
x coordinate for vertex = [tex]\frac{-8}{2 x -2}[/tex] = 2
y coordinate at x = 2
-2[tex](2)^{2}[/tex] + 8(2) = 8
vertex is at point (2,8)
axis of symmetry is the x coordinate of the vertex which is at x = 2
In conclusion, the axis of symmetry is at x = 2 and vertex at point (2,80 option c
Learn more about vertex and symmetry of a curve: brainly.com/question/21191648
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if the diameter of a circle is 124 centimeters, then what is the radius.
Answer:
radius = 62 cm
Step-by-step explanation:
radius = diameter/2
radius = 124/2 = 62 cm
Answer:
the radius 62
Step-by-step explanation:
the radius is really just the diameter split in half.
So, 124/2 = 62
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Step-by-step explanation:
Use ToA method (tan = opposite / adjacent)
For this question we have to use pythagoras' Theorem to find the adjacent side.
take a as the length of the adjacent side.
given b = 12
c = 13
By pythagoras' Theorem,
[tex] {c}^{2} = {a}^{2} + {b}^{2} \\ {a}^{2} = {c}^{2} - {b}^{2} \\ {a}^{2} = {13}^{2} - {12}^{2} \\ {a}^{2} = 169 - 144 \\ {a}^{2} = 25 \\ a = \sqrt{25} \\ = 5[/tex]
Now we can find tan(x)
tan(x) = Opposite / adjacent
[tex] = \frac{12}{5} [/tex]
Choose the correct classifacation of 4x^4-4x^3+10x^6
Answer:what’s classification
Step-by-step explanation:
How do I solve this arithmetic sequence?
Answer:
The 16ᵗʰ term of this sequence is 82
Step-by-step explanation:
Here,
First Term = a₁ = 9
Common Difference = (d) = 2
Now, For 16ᵗʰ term, n = 16
aₙ = a + (n - 1)d
a₁₆ = 7 + (16 - 1) × 2
a₁₆ = 7 + 15 × 5
a₁₆ = 7 + 75
a₁₆ = 82
Thus, The 16ᵗʰ term of this sequence is 82
-TheUnknownScientist
Which value of x makes the equation -2(1-4x)=3x+8 true?
Answer:
x = 2
Step-by-step explanation:
distribute -2 first
-2 + 8x = 3x + 8
-2 + 5x = 8
5x = 10
x = 2
Help... do it now if you can pls...
Answer:
1.A,B,C,D
2. AB, CD
3. AC, BD
4. Line AD (don't take my word for this one)
Step-by-step explanation:
If the pointer in the figure is spun twice, find the probability that the pointer lands on green (G) both spins.
Answer:
25%
Step-by-step explanation:
The bottom left and top right are each a quarter of the circle and are thus 25% each. The slivers in the middle have to add up to 50% and are all evenly sized. That means that each sliver is 50/4 or 12.5%
Since there are two green slivers, we multiply 12.5% * 2 to get 25%.
how can I solve a standard form of a linear equation?
Answer:
A standard form of a linear equation is Ax + By = C
Step-by-step explanation:
For example, 3x + 4y = 7 is a linear equation in standard form. When an equation is given the form it ia pretty easy to find the both intercepts of (x and y). It can be useful when solving a two linear equation.
X
How many 1 -by-1 -by-1 -inch cubes fit inside of this
rectangular prism?
The number of 1 -by-1 -by-1 -inch cubes that can fit inside of this rectangular prism 120 cubes.
Volume of a rectangular prism
volume = lwh
where
l = lengthw = widthh = heightTherefore,
volume = 10 × 3 × 4 = 120 inches³
Volume of the cube = l³
where
l = side lengthTherefore,
volume = 1 × 1 × 1 = 1 inches³
Therefore, the number of 1 -by-1 -by-1 -inch cubes that can fit inside of this rectangular prism is as follows;
number of cube = 120 / 1 = 120 cubes
learn more on volume here : https://brainly.com/question/1578538
Please please help please please ASAP I willl kisssss your azzz if you help me please please help please please ASAP please please help please
Answer: 3x-x+2=4
Step-by-step explanation:
12/X=3/6 CROSS MULTIPLY.
3X=12*6
3X=72 X=72/3 X= 24 FEET TALL.
Find mZR
R
120°
140°
S
Need help with this question?
Answer:
[tex] m\angle R = 50 \degree[/tex]
Step-by-step explanation:
By inscribed angle theorem:
[tex]m\angle R = \frac{1}{2} [360 \degree - (120 \degree + 140 \degree)] \\ \\ m\angle R = \frac{1}{2} [360 \degree -260 \degree] \\ \\ m\angle R = \frac{1}{2} \times 100 \degree \\ \\ m\angle R = 50 \degree \\ \\ [/tex]
Thomas has finished 50% of an art project that has taken him a total of 9 hours so far. If he continues to work at the same rate, how many hours will it take for him to complete the entire project?
Answer:
18 hours
Step-by-step explanation:
9/0.50 = 18 hours
f left parenthesis x right parenthesis equals 3 over 4 x squared .
Answer:
Step-by-step explanation: try your best
Priya has 5 pencils, each x inches in length. When she lines up the pencils end to end, they measure 34.5 inches. Select ALL the equations that represent this situation. *
Answer:
Equation b and c represent the situation.
Population 1,2,4,5,8 · Draw all possible sample of size 2 W.O.R · Sampling distribution of Proportion of even No. · Verify the results
Question:
A population consists 1, 2, 4, 5, 8. Draw all possible samples of size 2 without replacement from this population.
Verify that the sample mean is an unbiased estimate of the population mean.
Answer:
[tex]Samples: \{(1,2),(1,4),(1,5),(1,8),(2,4),(2,5),(2,8),(4,5),(4,8),(5,8)\}[/tex]
[tex]\hat p = \frac{3}{5}[/tex] --- proportion of evens
The sample mean is an unbiased estimate of the population mean.
Step-by-step explanation:
Given
[tex]Numbers: 1, 2, 4, 5, 8[/tex]
Solving (a): All possible samples of 2 (W.O.R)
W.O.R means without replacement
So, we have:
[tex]Samples: \{(1,2),(1,4),(1,5),(1,8),(2,4),(2,5),(2,8),(4,5),(4,8),(5,8)\}[/tex]
Solving (b): The sampling distribution of the proportion of even numbers
This is calculated as:
[tex]\hat p = \frac{n(Even)}{Total}[/tex]
The even samples are:
[tex]Even = \{2,4,8\}[/tex]
[tex]n(Even) = 3[/tex]
So, we have:
[tex]\hat p = \frac{3}{5}[/tex]
Solving (c): To verify
[tex]Samples: \{(1,2),(1,4),(1,5),(1,8),(2,4),(2,5),(2,8),(4,5),(4,8),(5,8)\}[/tex]
Calculate the mean of each samples
[tex]Sample\ means = \{1.5,2.5,3,4.5,3,3.5,5,4.5,6,6.5\}[/tex]
Calculate the mean of the sample means
[tex]\bar x = \frac{1.5 + 2.5 +3 + 4.5 + 4 + 3.5 + 5 + 4.5 + 6 + 6.5}{10}[/tex]
[tex]\bar x = \frac{40}{10}[/tex]
[tex]\bar x = 4[/tex]
Calculate the population mean:
[tex]Numbers: 1, 2, 4, 5, 8[/tex]
[tex]\mu = \frac{1 +2+4+5+8}{5}[/tex]
[tex]\mu = \frac{20}{5}[/tex]
[tex]\mu = 4[/tex]
[tex]\bar x = \mu = 4[/tex]
This implies that [tex]\bar x[/tex] is an unbiased estimate of the [tex]\mu[/tex]
(12) Which equation has irrational solutions?
Group of answer choices
Answer:
9(x+3)²=27
Step-by-step explanation:
hello :
9(x+3)²=27 means : (x+3)²=27/9
(x+3)²=3 because 3 is not the perfect square
A survey of 879 supermarket employees revealed that 239 workers felt they were overqualified for the position. What is the best way to characterize the 879 employees?
Answer:
they doubt if they're qualified or not
HELP NO LINKS NO FILES JUST ANSWERS DUE TODAY
Answer: From Figure A to Figure B it’s 1/2
Step-by-step explanation:
Count the squares around each triangle and then divide the larger number by the smaller one
Each lap around the track is 400 meters. How many meters does someone run if they run 5 laps?
Answer:
2000 meters
Step-by-step explanation:
400×5=2000
SHOW WORK PLEASE! I WILL GIVE YOU BRAINLIEST IF YOU SHOW! DONT USE LINKS PLEASE!!!
A single number cube is rolled twice and the two numbers are added.
PART A:
How can you determine the total number of possible outcomes
Answer:
well if you where talking about the dice the awnser is 6 and if you are tlking about the shirts then you can do 3 times 3 i thik is the right awnser
Step-by-step explanation:
1. a dice is a cube a cube has 6 sides a single number dice is a dice that only has numbers that are by themselves so the awnser can only be on the dice 6 to 9 so now we know that it is 6 now 6 times 2 is 12 because it got rolled twice
2.
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carol is making baby blankets for her daughters twins. If one blanket needs 43/4 yd of fabric, how much fabric does carol need for two blankets?
Answer:
21 1/2 yd
Step-by-step explanation:
43/4 + 43/4 = 21 1/2 yd
What is the product of 2b(b+11)? Show your work.
Answer:
25
Step-by-step explanation:
Answer:
2b^2 + 22
Step-by-step explanation:
2b(b + 11)
2b ×b + 2 × 11
2b^2 + 22
Find X. Give your answer in the simplest form.
Which expression is represented on the number line?
Answer:
b
Step-by-step explanation:
Triangle ABC below has a right angle C and a height CD. (A height in a triangle connects its vertex and the opposite side, and is perpendicular to that side.)
If AC is 3 units long and BC is 4 units long, what is the length of AD?
can you show the picture please?
i light is faster then anything how did dark get there first
hello there enjoy 30 points on da house
Answer:
this just confused me so much
Step-by-step explanation:
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Can someone help me pleaseee
Answer:
d or c more likey d
Step-by-step explanation: