Answer:
1
Step-by-step explanation:
There are 2 categories male and female and 1 attribute those who text during driving so the number of cells is 2*1= 2
And degrees of freedom is found by subtracting 1 from k= k-1= 2-1= 1 where k is the number of the categories
The degrees of freedom for this chi square test of proportions is 1
The critical value for ∝= 0.05 is .χ²≥ χ²(0.05,1)= 3.84
The critical value for ∝= 0.01 is .χ²≥ χ²(0.05,1)= 2.71
state of the given functions are inverses. Part 3. NO LINKS!!!!
Answer:
9.
h(x)=-x-1
let y =-x-1
interchanging role of x & y
x=-y-1
y=-x-1
h-¹(x)=-x-1
again
f(x)=(2-3x)/2
let
y=(2-3x)/2
interchanging role of x & y
x=(2-3y)/2
2x-2=-3y
y=(2-2x)/3
f-¹(x)=(2-2x)/3
Given function are not inverse of each other.
10.
f(x)=-x+3
let y=-x+3
interchanging role of x & y
x=-y+3
y=3-x
f-¹(x)=-x+3
equal to g(x)=-x+3
Given function are inverse of each other.
Answer:
Step-by-step explanation:
Call h(x) = y (It's easier to see).
y = -x - 1
The first step is always to interchange x and y
y = -x - 1
-x = y - 1
Solve for y
-x + 1 = y
If I understand the question, these two (f(x) and h(x)) are not inverses.
10 is a bit tricky. An inverse can invert into itself: This is called an involution. But if they are differently labeled, I'm not sure. I don't think that this is exactly what is men by an involution. Something like y = x would be. But you have 2 different inverses. I'm not sure that this qualifies.
y = x + 3
g = x + 3
x = y + 3
x - 3 = y
the question is in the picture
Answer:
the hypotenuse is 10
Step-by-step explanation:
6^2 + 8^2 = 100
square root 100 and its 10
Geometry i need help with this geometry question
Answer:
RS/XY = ST/YZ
Step-by-step explanation:
They need to follow the same direction and same length in comparision to the rest. From what I can see, that seems to be the one that does that best.
The Home Depot has two special lawnmowers for sale this year. The electric mower costs $300 each, and the gas-powered mower costs $450 each. The store has room for 25 total mowers, and the store has to order at least $6000 worth of mowers to start the sale.
Answer:
300a + 450b ≤ 6000
Step-by-step explanation:
Given:
Cost of electric mower = $300
Cost of gas mower = $450
Total number of mower = 25
Cost of total mower is at least = $6,000
Find:
Number of each mower equation
Computation:
Number of electric mower = a
Number of gas mower = b
So,
Equations
a + b ≤ 25 ........ Equation 1
300a + 450b ≤ 6000 ....... Equation 1
35 Type the correct answer in each box. Day Amount 1 $26 2 $23 3 $31 4 $26 5 $34 The table shows the amount Bill spent on 5 days last week. The mean of the amount he spent is $ The mean absolute deviation is $ Reset Next
Answer:
The answer is 23 I just took this test and got it right
Step-by-step explanation:
Answer: 23
Step-by-step explanation:
A community organization wants to determine area support for the construction of a new skate park in the center of town. The organization decides to survey 500 people to see whether they are willing to have their taxes increased for one year to fund the construction of the skate park. What is the best way to randomly choose these 500 people? O Select the first 500 taxpayers listed at the town hall. O Survey the first 500 people who visit the existing skate park. O Assign each taxpayer in town a number and then randomly select 500 of these numbers. O Choose 100 taxpayers from 5 different age groups in town.
PLEASE HELP!!!!
Answer: I just took the test, and the answer is 'Assign each taxpayer in town a number and then randomly select 500 of these numbers.'
Step-by-step explanation: Happy Pride Month!!
In a circle of radius 10 cm, a sector has an area of 40 (pi) sq. cm. What is the degree measure of the arc of the sector?
72
144
180°
Answer:
144°
Step-by-step explanation:
First, find the area of the circle, with the formula A = [tex]\pi[/tex]r²
Plug in 10 as the radius, and solve
A = [tex]\pi[/tex]r²
A = [tex]\pi[/tex](10²)
A = 100[tex]\pi[/tex]
Using this, create a proportion that relates the area of the sector to the degree measure of the arc.
Let x represent the degree measure of the arc of the sector:
[tex]\frac{40\pi }{100\pi }[/tex] = [tex]\frac{x}{360}[/tex]
Cross multiply and solve for x:
100[tex]\pi[/tex]x = 14400[tex]\pi[/tex]
x = 144
So, the degree measure of the sector arc is 144°
Answer:
Solution :-We know that
Area = πr²
Area = 3.14 × (10)²
Area = 314/100 × 100
Area = 314 cm²
Now
40π/314 = x/360
40 × 3.14/314 = x/360
125.6/314 = x/360
0.4 = x/360
0.4 × 360 = x
144 = x
[tex] \\ [/tex]
what is 70.5 and 79.5 on a number line 60-100?
Answer:
s
Step-by-step explanation:
A genie pops out of a lamp and presents you with the following choice: - Receive $50,000 now or For the next month, start with 2 pennies on Day 1 and then receive 2 more pennies on Day 2, 4 more pennies on Day 3, 8 more pennies on Day 4, etc.
Write a function for each situation to determine the best financial decision.
Answer:
y = .01x * 2^x
y = 50000x
Hope that this helps!
1 1/4×-1 1/3 is equals to?
Answer: [tex]-\frac{5}{12}[/tex]
Steps:
[tex]1\frac{1}{4}\times \left(-1\right)\frac{1}{3}[/tex]
Convert mixed numbers to improper fractions: [tex]1\frac{1}{4}[/tex][tex]=\frac{5}{4}[/tex]
[tex]=\frac{5}{4}\times \left(-1\right)\frac{1}{3}[/tex]
[tex]\mathrm{Apply\:the\:rule}:\quad \:a\left(-b\right)=-ab[/tex]
[tex]\frac{5}{4}\left(-1\right)=-\frac{5}{4}\times \:1[/tex]
[tex]=-\frac{5}{4}\times \:1\times \frac{1}{3}[/tex]
[tex]\mathrm{Apply\:rule}\:a\times 1=a[/tex]
[tex]=-\frac{5}{4}\times \frac{1}{3}[/tex]
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}[/tex]
[tex]\frac{5}{4}\times \frac{1}{3}=\frac{5\times \:1}{4\times \:3}[/tex]
[tex]=-\frac{5\times \:1}{4\times \:3}[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:5\times \:1=5[/tex]
[tex]=-\frac{5}{4\times \:3}[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:4\times \:3=12[/tex]
[tex]=-\frac{5}{12}[/tex]
Hope This Helps!
(no links) Please Help!
9514 1404 393
Answer:
D, B
Step-by-step explanation:
Price per pound is found by dividing dollars by pounds.
Store A: $9/(3 lb) = $3.00 /lb
Store B: $9.75/(3 lb) = $3.25 /lb
Store C: $12.40/(4 lb) = $3.10 /lb
Store D: $14.50/(5 lb) = $2.90 /lb
Part A: The lowest price per pound is $2.90 per pound at store D.
Part B: The highest price per pound is $3.25 per pound at store B.
Some of the ingredients in Monica's cake recipe will have 2/3 cup of
butter, and 3/4 cup of flour. Monica wants to make 12 cakes. How much
butter will she use? How much flour will she use?
Answer:
(a)3-2=1 (b) 4-3=1 (c) 12-1-1=10
Someone be a g and answer this!
21. What is area of a rectangle with width 6 meters and length 3 meters?
I
A 6 m2
B.
12 m2
c. 18 m²
D. 36 m2
Answer:
18 m^2
Step-by-step explanation:
Un aserradero adquiere maquinaria y equipo para el corte de madera, que va perdiendo valor conforme transcurren los años, hasta que su valor contable es cero, como indica la gráfica de la función D(x)=(-x^3+2x^2+20x+20)/(x^2+4x+4) que modela esta depreciación en el eje y cada unidad son 20 000 pesos y en el eje x cada unidad es de 3 años.
a) ¿Cuál es el valor inicial del equipo y herramienta? ¿cuánto se ha depreciado al cabo de 12 años?
b) ¿existe un modelo lineal que aproxime los mismos valores que la función D(x)?
c) ¿En cuánto difieren los valores de ambas funciones al cabo de 9 años?
Answer:
-1 5
Step-by-step explanation:
Theo has one piece of train track that is 74 millimeters long and a second piece of train track that is 97 millimeters long.
How many meters of track does Theo have in all?
0.171 m
1.71 m
17.1 m
171 m
what is the surface area?
Answer:
D.)
Step-by-step explanation:
(3x4)/2 = 6
(3x4)/2 = 6
5x11= 55
4x11= 44
3x11= 33
= 146
please help if u can
Answer:
x = 11.74739484
Step-by-step explanation:
To solve this problem, you can use trig functions. We are given an angle and the side next to it, and we are looking for the side opposite it. The perfect trig function to use for this would be tangent:
tan(θ) = opposite / adjacent
We can substitute the values we already have:
tan(40) = x / 14
x = 14 * tan(40)
We can evaluate this using a calculator and get:
x = 11.74739484
Zoe is starting her own snow plowing business. Zoe thinks she will do a better job than her competitors, so she thinks she can charge $11 per hour. If she knows she will only be able to work 40.25 hours per week, how much money will she earn each week
Answer:
$442.75
Step-by-step explanation:
$11/hour x 40.25 hours/week=$442.75
heeeeeeeeeeeelppppppppppppppppppppppppppppp
1. The Agent Earned $6,303
First, the real estate agency will earned 5.5%
5.5/100 * $382,000 = $21,010
Then, the agent earns 30% of $21,010
30/100 * $21,010 = $6,303
2. Basically, we're setting up an equation where Option A and Option B are the same amount.
For option A, you are making 23 dollars each hours, for 40 hours. (40*23)
For option B, you are making 4% of your sales. We're looking for how much she sells, so we can write that as x. (.04x)
Set the 2 options as equal and solve for x. so x is 920(.04x
sorry if wrong it was really hard
3. If 90% are women, 10% are men.
If x is the total amount of people.
.1x = 320
Solve x from here.
FIANNLY IM DONE
Two of the statements are true; one is a lie.
Select the one that is a lie.
Then explain your reasoning.
∠BAF and ∠CAF are complementary.
∠BAF and ∠BAC are adjacent.
∠DAC and ∠CAB are supplementary.
Answer:
Angle BAF and angle BAC is incorrect.
They overlap: adjacent angles do not overlap.
Answer: Choice B
angle BAF and angle BAC are adjacent
=============================================================
Explanation:
Let's go through each of the answer choices.
Choice A is true since angles BAF and CAF form a right angle (90 degree angle). So we can rule this out.Choice B is false. This is the answer. Adjacent angles must share a common ray or side, which does happen with the two angles in question (both share ray AB); however, note that angle BAF is completely inside angle BAC. We cannot have this overlap, or any overlap at all, when it comes to adjacent angles. Choice C is true. The two angles combine or glue together to form a straight angle, which is 180 degrees. We can rule this answer choice out.Johnny was buying pizza rolls. One sausage pizza roll cost 1.54 and he also bought pepperoni flavored rolls. If he buys 6 sausage rolls and 10 pepperoni rolls and he spends $22.54 in total. How much does a pepperoni roll cost?
Answer:
$1.33
Step-by-step explanation:
multiply 6 by 1.54 to see how much he spent on sausage rolls
subtract that from the total ($22.54)
divide by 10 to see how much each pepperoni roll costs
Answer:
$1.33
Step-by-step explanation:
1.54x6=9.24
22.54-9.24=13.30
13.30/10=1.33
Question 13 I don’t know how to do it
Answer:
y = - [tex]\frac{1}{4}[/tex] (x - 1)²(x + 2)(x + 6)
Step-by-step explanation:
The roots from the graph are
x = - 6 , then factor is (x + 6)
x = - 2 , then factor is (x + 2)
x = 1 ( multiplicity 2 ) , then factor is (x - 1)² then
y = a(x - 1)²(x + 2)(x + 6) ← a is a multiplier
To find a substitute any point on the graph into the equation
Using (0, - 3 ), then
- 3 = a(- 1)²(2)(6) = 12a ( divide both sides by 12 )
- [tex]\frac{1}{4}[/tex] = a
Then
y = - [tex]\frac{1}{4}[/tex] (x - 1)²(x + 2)(x + 6)
A new laundry detergent is supposed to be equally superior to the leading brand in both hot and cold water. If the new detergent works as predicted, then there should be an interaction between the brand of detergent and the temperature of the water.
a. True
b. False
Answer: false
Step-by-step explanation: because you set the temp not the liquids.
Plz help me well mark brainliest if correct....??
Answer:
Table B
Step-by-step explanation:
3/4(x-2)+1/3(2x+5)=4
Answer:
X=86/17
Step-by-step explanation:
Answer:
x=46/17
Step-by-step explanation:
Let's solve your equation step-by-step.
3/ 4 (x−2)+ 1/ 3 (2x+5)=4
Step 1: Simplify both sides of the equation.
3/ 4 (x−2)+ 1/ 3 (2x+5)=4
( 3/ 4 )(x)+( 3/ 4 )(−2)+( 1/ 3 )(2x)+( 1/ 3 )(5)=4 (Distribute)
3/ 4x+ −3/ 2 + 2/ 3 x+ 5/ 3 =4
( 3/ 4 x+ 2/ 3 x)+( −3/ 2 + 5/ 3 )=4 (Combine Like Terms)
17/ 12 x+ 1/ 6 =4
17/ 12 x+ 1/ 6 =4
Step 2: Subtract 1/6 from both sides.
17/ 12 x+ 1/ 6 − 1/ 6 =4− 1/ 6
17/ 12 x= 23/ 6
Step 3: Multiply both sides by 12/17.
( 12/ 17 )*( 17/ 12 x)=( 12/ 17 )*( 23/ 6 )
x= 46/ 17
Elena wonders how much water it would take to fill her cup, so she wants to determine the diameter of the cylindrical cup. She drops her pencil in her cup and notices that it just fits diagonally. (See the diagram.) The pencil is 17 cm long and the cup is 15 cm tall. What is the diameter of the cup? Explain or show your reasoning.
Answer:
get brainly pictures in the appp store it should help you
Step-by-step explanation:
I want to know what 5/8 divided by 8/5 equals
Answer:
The answer is 0.390625
HELP ME PLEASE, I can't figure out this puzzle :(
if p=(-1,-1) find the image of P under the following rotation. 90 degrees counterclockwise about the origin brainly
Answer:
(1 , –1)
Step-by-step explanation:
bro, you can see it if you draw on graph paper, or you just need to use your imagination more
Answer:
1,-1
Step-by-step explanation: