Answer:
Since the calculated value z= -1.956 does not lie in the critical region z= ± 1.96 we conclude that true average hourly wage of a server is not different than the claim of $12.
Step-by-step explanation:
The null and alternate hypotheses are
H0: u= 12 against the claim Ha: u≠ 12
Taking significance level alpha = 0.05
The critical region is z= ± 1.96 for two tailed test
The sample size = n= 30
The sample mean = 11
Sample standard deviation= 2.80
Applying z- test
Z= x-u/s/√n
z= 11-12/2.8/√30
z= -1/0.5112
z= -1.956
Since the calculated value z= -1.956 does not lie in the critical region z= ± 1.96 we conclude that true average hourly wage of a server is not different than the claim of $12.
Solve the system of equations.
{y=30x+10y=5x2−25
I need major help!!! Please!!!!
Please help Mach the measurmeants it is 10 p
Answer:
Step-by-step explanation:
40cm—0.4m
4000mm=4m
4mm=0.4cm
4m=400cm
40km=40,000m
Can’t see the last box in the left line.
1km=1000m
1m=100cm
1cm=10mm
4.0/5.7=1.8/x what is the answer for u smart people
Answer:
here you go
Step-by-step explanation:
Answer:
2.565
Step-by-step explanation:
Hope that this helps!
Which fraction correctly represents 0.63?
A 5/12
B 7/11
C 2/3
D 9/13
Answer:
7/11
Step-by-step explanation:
take the numirater and divide by denominator
7÷11=0.6363....
Answer:
like owlowlowl said '7/11'
Please answer this question
Answer:
Step-by-step explanation:
Find the sum of the first 45 terms of the following series, to the nearest integer. 9 + 13 + 17 ...
Answer:
ᴘᴏᴛᴀʜ 2329 ᴛʜᴀᴛs ᴛʜᴇʙᴇǫᴜᴏᴀʟ sᴅᴅ
Answer:
4365
Step-by-step explanation:
A cone has a base radius of 3 cm and a slant height of 5 cm.
Find h, the perpendicular height of the cone.
Answer:
h=4
Step-by-step explanation:
5²-3²=h²
h²=16
h=4cm
Answer:
I=4 (Slant height)
R=3 (Radius)
H=5 (slant height)
Step-by-step explanation:
Imagine inclination, peprendicular height and radius as a triangle, so this will have a 90 degrees angle and Pythagor theorem will imply to the calculations, as :
[tex]a^{2}+b^{2}= c^{2}\\[/tex]
where Height is A , Radius is B, and Inclination is C we have:
[tex]3^{2} +I^{2} = 5^{2}[/tex]
from above we have:
[tex]I^{2} =25-9[/tex]
and
[tex]\sqrt{I}=\sqrt{16} =4[/tex]
Write the point -slope form of the equation of the line (-2,5), slope =6
Answer:
y - 5 = 6(x + 2)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = 6 and (a, b) = (- 2, 5) , then
y - 5 = 6(x - (- 2)) , that is
y - 5 = 6(x + 2)
Chapter 6 Introduction to Variables and Evaluating Expression
Mathematics, Algebra 1
Question 1
Simplify: -2s - 9+7 - 5r use s = 3 and r= -8
What is the product? (4x) (-3x^8)
Answer:
the product of (4x) (-3x^8)=-12x^9
Answer:
-12x^9
Step-by-step explanation:
multipy :)
[tex]2 \times (2 - 6 + 3 + 64 \times 3)[/tex]
Who will get the answer first?
Answer:
382
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
Identify
2 × (2 - 6 + 3 + 64 × 3)
Step 2: Evaluate
(Parenthesis) Multiply: 2 × (2 - 6 + 3 + 192)(Parenthesis) Subtract: 2 × (-4 + 3 + 192)(Parenthesis) Add: 2 × (-1 + 192)(Parenthesis) Add: 2 × 191Multiply: 382Three siblings share two cookies equally.which choice represents how many cookies each sibling get? A.1/3 b.2/3 c.3/2 d.6 cookies
Answer:
3/2 cookies
Step-by-step explanation:
3 divided by 2 = 3/2 = 3/2
Hope this helps!
Help me help me help me help me… but ignore the 21.5 that was wrong
Answer:
16.2
Step-by-step explanation:
a²+b²=c²
a=10, b=y, c=19
100+y²=361
y²=361-100
y²=261
√y²=√261
y=√261
y=16.2
Write in Expanded form: 75,300,207
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
[tex]75, 300, 207[/tex]
⎆ In expanded form :-[tex]70,000,000 + 5,000,000 + 300,000 + 0 + 0 + 200 + 0 + 7[/tex]
# ꧁❣ RainbowSalt2²2² ࿐
In 2017 the population of Rexburg, Idaho was 28,337 people. The population was expected to grow at a rate of about 1.26% per year. Based on these numbers, what would we predict the population of Rexburg will be in the year 2022?
(Round to the nearest whole number.)
Answer:
30,122
Step-by-step explanation:
This probably isn't the fastest way to solve but....
28,337x1.26%= 357
357x5=1785
28,337+1785=30,122
The 5 came from the # of years the population is increasing
We are required to find the population of Rexburg will be in the year 2022
The population of Rexburg will be in the year 2022 is 30,122 people
Given:
2017 population = 28,337 people
Growth rate per year = 1.26%
let
n = number of years between current and predicted
= 2022 - 2017
n = 5 years
Yearly growth rate = 28,337 × 1.26%
= 28,337 × 0.0126
= 357.0462
Predicted population in 2022 = 2017 population + (357.0462 ×5)
= 28,337 + 1,785.231
= 30,122.231
Approximately, 30,122 people in 2022.
Therefore, the population of Rexburg will be in the year 2022 is 30,122 people
Read more:
https://brainly.com/question/20396348
A baseball player hit 67 home runs in a season. Of the 67 home runs, 21 went to right field, 25 went to right center field, 11 went to center field, 8 went to left center field, and 2 went to left field. What is the probability that a randomly selected home run was hit to right field?
Answer:
21/67 will be the probability.
Step-by-step explanation:
Ok so the player hit 67 home runs. An there was 21 which was hit to right field, so it will be 21/67
Someone pls help me with this problem
Answer:
B.
Step-by-step explanation: it is A. not B.
un atleta recorre 6 km por hora al cabo de 4 horas qué distancia ha recorrido
24
6x4
-
6
+
6
+
6
+
6
=
24
4x6
=
24
From the equation, find the axis of symmetry of the parabola. y = 3 x squared minus 12 x + 11 a. x = negative 2 c. x = 1 b. x = 2 d. x = negative 1 Please select the best answer from the choices provided A B C D
Answer:
the axis of symmetry would be: b. x=2
The equation of the axis of symmetry of the parabola will be x = 2. Then the correct option is B.
What is the equation of the parabola?Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.
Then the equation of the parabola will be given as,
y = a(x - h)² + k
The equation is given below.
y = 3x² - 12x + 11
Convert the equation into a vertex form. Then we have
y = 3x² - 12x + 11
y = 3x² - 12x + 12 - 1
y = 3(x² - 4x + 4) - 1
y = 3(x - 2)² - 1
The equation of the axis of symmetry of the parabola is given as,
x - 2 = 0
x = 2
The equation of the axis of symmetry of the parabola will be x = 2. Then the correct option is B.
More about the equation of the parabola link is given below.
https://brainly.com/question/20333425
#SPJ2
Kyle is buying a $220 bicycle if the bicycle is on sale for 35% off how much will he save
Answer:
$77
Step-by-step explanation:
Okay so first, we know that the bicycle is 220 dollars. So we got to multiply that to the percent. We can't muiltiply it into the percent yet so we turn that percent into 0.35
220 * 0.35
This equals to 77. That's the answer but it's not that simple, cause we aren't finished!
So we know that 35 percent of 220 is 77 dollars. So subtract that to 220!
220 - 77
This is equal to 143. Now how much will he save? He will save 220 - 143, which is 77! That's how we know the answer! I'm sure this is correct, if itsn't please comment! Have a great day!
Answer:
$143
Step-by-step explanation you wanna see how much 35% is out of 220
35% = 0.35
220 * 0.35 = 77 = discount
Now you want to see how much it will be when the discount is applied
220-77 = 143
The bicycle is $143 when discount is applied, you save $77
To build a computer, Tom needs to buy a motherboard for £ 120, and a CPU for
£ 100.Then find the total cost of building 10 computer ?
Answer:
£2200
Step-by-step explanation:
1 computer = £120 + £100
1 computer = £220
10 computers = £220 x 10
10 computers = £2200
i need help pls!
this test is about angles, and i am having trouble with it.
Answer:
Alternate interior
This is your answer
Answer:
alternative .....................
Which figure shows a reflection of pre-image QRS over the line t?
I need help PLSSSSS 50 points!!!
Answer:
A, because its reflecting off of the y axis
Step-by-step explanation:
I have proof links, and I took the test
What percent of 80 is 20? Answer pla
Answer:
25%
Step-by-step explanation:
[tex] \frac{20}{80} = \frac{1}{4} = 0.25 = 25\%[/tex]
Helpppp plzzzzzzzzz !!!!!!
Answer:
the 3rd box
Step-by-step explanation:
Answer:
[tex]5^{-1}[/tex]
Step-by-step explanation:
5⁻⁴ ÷ 5³
Since they have the same base we can combine the exponents. Since we have a division sign, we add the exponents
5⁻⁴⁻³
5⁻¹
I need help like right now. Im brain dead
Answer:
y-intercept: [tex](0,-\frac{5}{2} )[/tex]
x-intercept: [tex](-2,0)[/tex]
Step-by-step explanation:
Hi there!
Important things to note:
the y-intercept occurs when x=0the x-intercept occurs when y=01) Find the y-intercept
[tex]-5x-4y=10[/tex]
Substitute x with 0
[tex]-5(0)-4y=10\\0-4y=10\\-4y=10[/tex]
Divide both sides by -4
[tex]\frac{-4y}{-4} =\frac{10}{-4} \\y=-\frac{5}{2}[/tex]
Therefore, the y-intercept is [tex]-\frac{5}{2}[/tex]. When written in (x,y) form, x will always be 0 while y is the y-intercept:
[tex](0,-\frac{5}{2} )[/tex]
2) Find the x-intercept
[tex]-5x-4y=10[/tex]
Substitute y with 0
[tex]-5x-4(0)=10\\-5x-0=10\\-5x=10[/tex]
Divide both sides by -5
[tex]-5x=10\\\frac{-5x}{-5}= \frac{10}{-5} \\x=-2[/tex]
Therefore, the x-intercept is -2. When written in (x,y) form, x will always be the x-intercept while y is always 0:
[tex](-2,0)[/tex]
I hope this helps!
SOMEONE HELP PLZ!! just need to know what the domain and range is!
Answer:
C.
Step-by-step explanation:
The Domain is 1,2,3,4,5,6 because the line passes through there. The y-intercept is 1,2,3,4,5,6,7 because that is where it passes through.
If this helps please mark as brainliest
what will be the prime minister if the length and breadth of a rectangle are (3a +2) and (2a - 1)
Answer:
2"(3a+2)+(2a-1)"
Step-by-step explanation:
2(5a+1)
10a+2
Complete the function table for each equation
Answer:
y=-32, 0, -16, -4, 16
Step-by-step explanation:
y=4(-6)-8= -32
y=4(2)-8 = 0
y=4(-2)-8 = -16
y=4(1) -8 = -4
y=4(6) -8= 16
For the given equation of the line, the complete table is attached below.
Use the concept of the equation of line defined as:
A line has length but no width, making it a one-dimensional figure. A line is made up of a collection of points that can be stretched indefinitely in opposing directions. Two points in a two-dimensional plane determine it.
The given equation of a line is,
y = 4x - x
To complete the table:
Put x = -6 in this equation,
y = (-4)(-6) - 8
y = 16
Put x = 2 in the equation,
y = (-4)(2) - 8
y = -16
Put x = -2 in the equation,
y = (-4)(-2) - 8
y = 0
Put x = 1 in the equation,
y = (-4)(1) - 8
y = -12
Put x = 6 in the equation,
y = (-4)(6) - 8
y = -32
The complete table is attached below.
To learn more about the equation of line visit:
brainly.com/question/18831322
#SPJ6
Please help me with this problem
ln -3x + ln 4 = ln 58
9514 1404 393
Answer:
x = -29/6 = -4 5/6
Step-by-step explanation:
The equation simplifies to ...
ln(-3x·4) = ln(58)
Taking antilogs, the equation becomes ...
(-3x)(4) = 58
Dividing by -12 shows us the value of x.
x = -58/12
x = -29/6 = -4 5/6
__
The applicable rule of logarithms is ...
ln(ab) = ln(a) +ln(b)
Answer:
7x - 4x = 21
3x = 21
x = 21÷3
x = 7