Answer:
6
Step-by-step explanation:
A researcher wishes to determine whether there is a difference in the average age of elementary school, high school, and community college teachers. Teachers are randomly selected. Their ages are recorded below. A suitable hypothesis test will be conducted to test the claim that there is no difference in the average age of each group. Find the test statistic. g
Answer:
F- test
Step-by-step explanation:
Testing the hypothesis about the equality of k (k>2) population means
Test statistic F is used to find the whether there is no difference in the average age of each group.
Test statistic to be used
F= Between Mean Square/ Within Mean Square
F= s1²/s2² where s1 and s2 are independent unbiased estimates of the variance and their values do not differ greatly.
Which have v1= k-1 and v2= n-k degrees of freedom
The analysis of variance F -t est is always a one tailed test with rejection region located in the right tail of the F- distribution.
if g(x)=8(1/2)^x then What is g(3)=
Answer:
g(3)= 4/3
Step-by-step explanation:
plug in the 3 for the x for get 4/3
Answer:
1
Step-by-step explanation:
put x=3,
8×1/2³ = 8/8 =1
Find the RANGE
135 120 125 133 66 78 81 91 145 135 68
(2 + 3x)
62
Angle Relationship: Adjacent OR Vertical
Answer:
adjacent
Step-by-step explanation:
-7/4 = 2/5x solve for x
7. A 15-foot ladder is leaning against a building. The vertical distance from the ground to the
top of the ladder is 10 feet. Which is closest to x, the horizontal distance between the
base of the ladder and the building?
A. 17 feet
B. 23 feet
C. 11 feet
D. Not here
John can polish 42 tables in 6 hours. What is the ratios of the number of hours to tables?
Answer:
1 : 7
Step-by-step explanation:
Answer:
7:1
Step-by-step explanation:
divide 42 by 6 to get how many he can do in one hour
42/6=7
7:1
Steven jogs around a circular field with a diameter of 70 yd. Find the area of the field.
Answer:
3848.46 :)
Step-by-step explanation:
What's 2+2 I don't know what to do
Answer:
2+2 is 4
Step-by-step explanation:
plz mark me brainest answer
Need help
1. 15% of what number is 6?
2. 25 is 10% of what number
3. 49 is 35% of what number
4. What is 310% of 65
Thanks
Answer:
1. 40
2. 40
3. 140
4. 210.5
I tried, hope this helps :)
PLEASE HELP! WILL GIVE BRAINLIEST! After substituting, what is the first step when evaluating 4y+9 when y=82 O Add 4 and 9. O Multiply 8 by 4. O Divide 9 by 7 O Divide 4 by 7.
Answer:
The answer is c
Step-by-step explanation:
draw the graph of y=3-1/2x
Answer:
how do i draw the graph
Step-by-step explanation:
Answer:
I attached my sketch of it. Notice how as the y value goes down 1, the x value goes to the right 2.
I would appreciate Brainliest but no worries.
Is the point (-4, 1/2) on the graph of y= 1\2 x-4 ? How do you know? Show your work/thinking.
9514 1404 393
Answer:
no, when x is even, y will be an integer, not a fraction
Step-by-step explanation:
We observe that the coefficient of x is 1/2, so the x-term will be an integer only if x is a multiple of 2 (even). If the x-term is an integer, y will be an integer.
The given point has x even (-4), so we expect y to be an integer. The given point has y=1/2, not an integer, so the point will NOT be on the graph.
I need help
SELECT ALL THAT APPLY.
WHICH SHAPE(S) COULD THE FOLLOWING FORMULA BE USED FOR?
A=3 h(b1 +
+ b2)
A. Rectangle
B. Square
C. Trapezoid
D. Triangle
E. Cube
Answer:
a
Step-by-step explanation:
Write an equivalent expression for h + h + h + n + r + r + n
Answer:
h3 + r2 + n2
Step-by-step explanation:
Answer:
3h+2n+2r
Step-by-step explanation:
I believe you just combine like terms. Since there are 3 hs, 2 ns, and 2 rs, you just them all up and you get 3h+2n+2r.
I hope this helped you!
Choose all the weights that are equal to 1 ton 200 pounds.
A.
35,000 ounces
B.
1,200 pounds
C.
2,200 pounds
D.
1,200 pounds 100 ounces
E.
1 ton 100 pounds 1,600 ounces please answer this
Answer:
C. and E. i did the test
Step-by-step explanation:
The only options that are equal to 1 ton 200 pounds are C and E.
What is unit conversion?It is defined as the conversion from one quantity unit to another quantity unit followed by the process of division, and multiplication by a conversion factor.
We are given that;
1 ton 200 pounds.
Now,
We can compare this value with the given options and see which ones are equal to it. We can use the conversion factors from the search results34 to convert ounces to pounds. We get:
A. 35,000 ounces = 35,000 / 16 pounds 35,000 ounces = 2,187.5 pounds This is not equal to 2,200 pounds.
B. 1,200 pounds = 1,200 pounds This is not equal to 2,200 pounds.
C. 2,200 pounds = 2,200 pounds This is equal to 2,200 pounds.
D. 1,200 pounds 100 ounces = (1,200 + (100 / 16)) pounds 1,200 pounds 100 ounces = (1,200 + 6.25) pounds 1,200 pounds 100 ounces = 1,206.25 pounds This is not equal to 2,200 pounds.
E. 1 ton 100 pounds 1,600 ounces = ((1 x 2,000) + (100 + (1,600 / 16))) pounds 1 ton 100 pounds 1,600 ounces = (2,000 + (100 + 100)) pounds 1 ton 100 pounds 1,600 ounces = (2,000 + 200) pounds 1 ton 100 pounds 1,600 ounces = 2,200 pounds This is equal to 2,200 pounds.
Therefore, by the conversion the answer will be 1 ton 200 pounds are C and E.
Learn more about the unit conversion here:
brainly.com/question/11543684
#SPJ3
What is the approximate area of the circle shown below
Answer:
A, 616 cm^2
Step-by-step explanation:
Area- πr^2
A- 3.14(14^2)
A- 3.14(196)
A- 615.44 cm^2 or ≈ 616 cm^2
Answer:
A.
Step-by-step explanation:
What is -56 = - 8z because I don’t even know the answer
Answer:
z=7
Step-by-step explanation:
7 times (-8)=-56
hope this helps:)
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
1) you deposit $2,300 in a bank account. find the balance after 5 years for each of the following situations: is) the account pays 2.5% annual interest compounded monthly.
Answer:
Well, After 5 years No interest you'd still have only 2,300 dollars in the bank.
But 5 years with interest you'd have 5750$ in the bank.
Step-by-step explanation:
With no interest, their is nothing added to your bank account, if you don't take anything away from it either then you'd still have the exact same amount.
With 2.5% monthly interest you'd get 3250$ because...5years * 12 months = 60 months...60 months * 2.5% = 150%...2,300$ + 150% = 5750$.
Please help me there due tonight!!! All help is appreciated.
Answer:
1. 160cm²
2. 176.25cm²
3. 33.75ft²
Step-by-step explanation:
Area triangle = (1/2)(base)(height)
1)
total area = 2(area small triangle) + 2(area big triangle)
= 2(0.5(8)(9))+2(0.5(8)(11))
=72+88=160cm²
2)
total area = 2(area small triangle) + 2(area big triangle)
= 2(0.5(7.5)(7.5))+2(0.5(7.5)(16))
= 56.25 + 120 = 176.25cm²
3)
total area = 2(area small triangle) + 2(area big triangle)
= 2(0.5(4.5)(2.5))+2(0.5(4.5)(5))
= 11.25+22.5 = 33.75ft²
If cosx=-3/7, find the value for cos4x
Answer:
cos ( 4 x ) = - 479 / 2401
Step-by-step explanation:
:D
(Middle school) I’ll give brainliest
Answer:
150.72 units^3
Step-by-step explanation:
Formula: πr2h
3.14 x 4^2 x 3 = 150.72 units^3
help me with geometry practice . DN=O NOT ANWSER IF YOU DON'T KNOW.
Answer: See Below
Step-by-step explanation:
there is a ton of information here to get through
<a is 34 (half of 68)
<C is 56
triangle YRC is iscocles, YR and RX are both radius, so they are equal. So the base angles must be equal as well. we know that the central angle is 68, because arc YX is 68. to find the measure of angle C use the equation 2x+68=180 (2 of the same angle (x) + 68 makes all the angles in the triangle. 2x=180-68 2x=112x=56Skip E until the end
<G is 84
<G and the angle that is 96 make a linear pair <G + 96=180<G=84Arc YS is 112
Arc YS is = <Rfind <R<R and the angle across from ARC YX are a linear pair<YRX is 68<R+68=180<R is 112<D and F are 42
<D and <F are the base angles of an isosceles triangle (2 sides are the radius again)the central angle in this case is 962x+96=1802x=84x= 42so both D and F are 42now <E is 96
measure of an angle outside the circle with 2 rays touching the circle is the measure of the larger arc of the circle minus the smaller arc divided by 2the measure of the smaller arc is the same as <Gsmaller arc is 84the larger arc is 360-84the larger arc is 276276-84= 192divide by 2 to get <E192/2=96Help we need to find c and d and the value of x
Answer:
c=21, d=69, x=37
Step-by-step explanation:
159+c=180
c=21,
21+d=90
d=69,
3x+69=180
3x=111
x=37
What is the slope of this graph??
Is the following statement true or false?
A parabola opens up when a is positive.
A True
B False
Answer:
trueeeeeeeeeeeeeeeee3
Answer:
if a is positive the parabola opens up to the right and it's a negative it opens down
The first sequence follows the rule add 5. The second sequence follows the rule add 3. Both sequences start from 2. Select the option that correctly shows the first 5 terms for each sequence. Question 1 options: First sequence: 2, 7, 12, 17, 22 and second sequence: 2, 5, 8, 11, 14 First sequence: 0, 5, 10, 15, 20 and second sequence: 0, 2, 4, 6, 8 First sequence: 2, 6, 10, 14, 18 and second sequence: 2, 5, 8, 11, 14 First sequence: 2, 7, 12, 17, 22 and second sequence: 2, 6, 10, 14, 18
There are 31 motor scooters on a used car lot, along with 67 other vehicles.
What is the probability that a randomly selected vehicle will be a motor scooter?
Write your answer as a fraction or whole number.
Answer:
31/98
Step-by-step explanation:
31 motor scooters
67 other vehicles
31 + 67 total vehicles
31 + 67 = 98
The probability is motor scooters/total vehicles
31/98 is the answer.
Is the first one correct and what are the ages?
Which statement is true about the relationship between the height of the plant and the number of days? This relationship is a function because the plant can only be one height at a time. This relationship is not a function because the plant can only be one height at a time. This relationship is a function because the plant can be more than one height at a time. This relationship is not a function because the plant can be more than one height at a time.
Answer:
This relationship is a function because the plant can only be one height at a time.
Step-by-step explanation:
Functions occur when the recorded x-value is varied each time. Since the height of the plant (the x-value) varies each day, it is a function.