Answer:
Mean of sample means = 22.12
Step-by-step explanation:
Data points 1 2 3 4 5 Sample mean
Sample 1 21 10 19 35 23 21.6
Sample 2 34 44 29 15 30 30.4
Sample 3 38 22 29 31 15 27
Sample 4 47 39 20 16 36 31.6
[tex]Mean of means = \frac{Sum of sample means}{No. of samples}[/tex]
[tex]=\frac{21.6 + 30.4 + 27 + 31.6 }{5} \\= 22.12[/tex]
Answer:
22.12
Step-by-step explanation:
Hope this helps
Find the lateral and surface area for the pyramid with a regular base. Where necessary, round to the nearest tenth.
Answer:
Lateral area -288. Surface area-96
Step-by-step explanation: teacher told me
Am I correct? I put
Answer:
yes
Step-by-step explanation:
Please help I’m really need the help (NO LINKS ) (NO LYING )
Answer:
for this you should use photomath all you do is take a picture of each problem and put the answer down
Answer:
1 = 22.4
2 = 19
3 = 22.6
4 = 18.75
5 = 23.6
6 = 20.85
7 = 29.75
8 = approximately 21.85
9 = i can't read the bottom number sorry
* all of this is squared inches too
Determine whether each equation is true or false.
Answer:
1. False
2. True
3. False
please answer it's easy
Answer:
did not see that coming
Step-by-step explanation:
Got rickrolled
Which value of x would make TV IOS?
R
03
08
x
x + 4
10
X + 10
11
T
X-3
V
//
х
Answer:
11
Step-by-step explanation:
the value of x is 11 to make tv IOS
The measure value of y is 10.
Option C is correct.
What is Basic Proportionality Theorem?When a line parallel to one side of a triangle intersects the other two sides in distinct points, the other two sides are divided in the same ratio.
The fundamental proportionality theorem can be used to calculate the lengths of two sides of a triangle divided by a line drawn parallel to the third side. It can also be used to determine the relationship between two equiangular triangles.
We have
RT= x+ 4
TQ= x- 3
RV= x+ 10
As, TV || QS
By using Basic Proportionality Theorem
RT / TQ = RV / VS
(x+ 4) / (x- 3) = (x+ 10)/ x
x² + 4x = x² -3x + 10x - 30
4x - 7x = -30
-3x = -30
x= 10
Thus, the required value is 10.
Learn more about Basic Proportionality Theorem here:
https://brainly.com/question/28987422
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A y = 3x + 2
C y=-3x + 2
B y = 3x + 2
D y = - 3 x + 1/2
for a minute i thought it was c. y = -3x + 2.
Please please help. It’s due at 11:59. I don’t understand
Answer:
Step-by-step explanation:
FYI,
C ∪ D = ( - ∞ , 2 ) ∪ [ 6 , ∞ )
C ∩ D = ∅
Calculate the area of the shape below.
Answer:
24 ft²
Step-by-step explanation:
1/2x12x4=24 ft²
Greatest comment factor of 15^2 & 25c
Answer:
25
Step-by-step explanation:
Find the prime factors of each term in order to find the greatest common factor (GCF),
25
The expression x^2- x + 8.75 factors as (x + 2.5)(x - a) for some positive value "a". What is a?
step by step, please.
Answer:
3.5
Step-by-step explanation:
Write out quadratic
[tex] {x}^{2} - x + 8.75[/tex]
We are given that x+2.5 is a factor.
So our roots look like
[tex](x + 2.5)(x - a)[/tex]
Let apply the foil method to find some missing parts.
[tex]x \times x = {x}^{2} [/tex]
[tex]x \times - a = - ax[/tex]
[tex]2.5 \times x = 2.5[/tex]
[tex]2.5 \times - a = - 2.5a[/tex]
We know that the outer terms must multiply to 8.75. We also know that the middle terms must add up to -1.
[tex] - 2.5a = 8.75[/tex]
[tex] 2.5x - ax = -1[/tex]
The only number that satisfy this equation is
[tex] - 3.5[/tex]
Since it already negative, it is
[tex]3.5[/tex]
Finding missing angles
180°
35°
X
Answer:
90 degree and 55 degree
plz mark me as brainliest
Step by step explanation please
Step-by-step explanation:
of what where is the question
If Brianna can read 1/4 of her book in 1/2 hour, how much of her book will she read in 1 hour?
help pls ill give brainlist
Answer:c
Step-by-step explanation:300 divided by 4 is 75
what is the cube root of 343/8?
Answer:
970.150503788
Step-by-step explanation:
the answer is 0.875 soo use square root on both of them
Solve for the area of the smaller
shape.
Round to the nearest TENTH.
Terrell ran around a track that was 100 yards long.
How many feet did he run?
Answer:
300ft
Step-by-step explanation:
Answer:
300 ft
Step-by-step explanation:
1 yd = 3 ft
100 yd = 100 * 1 yd = 100 * 3 ft = 300 ft
Answer: 300 ft
Susan knows that the coordinates of the center of a circle and a point on the circle are (-3, 2) and (10, -2), but she can't remember which coordinate pair is which. What could be an equation of the circle? Explain your answer.
9514 1404 393
Answer:
(x +3)² +(y -2)² = 185
(x -10)² +(y +2)² = 185
Step-by-step explanation:
One possible equation comes from using one of the points as center. The other possible equation comes from using the other point as center.
The radius can be found from the distance formula:
r² = (x2-x1)² +(y2-y1)² = (10-(-3))² +(2-(-2))² = 169 +16 = 185
The circle formula is ...
(x -h)² +(y -k)² = r² . . . . . . for center (h, k) and radius r
The above equations and the ones shown in the attachment are possibilities.
What is the area of this semicircle if the radius is 6m?
I need help with this. So, please help!! You shall receive 40 points.
Answer:
p=6/5
Step-by-step explanation:
p=6/5 or 1.2 or (1 and 1/5)
Steps
Switch sides of equation
Divide both sides by 5
Simplify
Add 2 to both sides
ABC-DBE. Find the missing side length.
Answer:
x=13.5
Step-by-step explanation:
4.5/6=x/18
cross multiply
6x=18(4.5)
6x=81
x=81/6
x=13.5
Joe has a goal to practice his clarinet for 4 1/2 hours per week the list below shows the number of hours does practice this week so for Monday one and a half Wednesday 1 1/4 Thursday one how many more hours does Joel need to practice this week to meet his goal.
Answer:
0.75 hours more
Which of the following cannot be the side lengths of a triangle?
10, 12, 18
9, 9, 10
3, 11, 15
10, 15, 20
Answer:
3, 11, 15
Step-by-step explanation:
The two shorter sides add up to 14, which is smaller than 15, therefore making the triangle impossible as the sum of the two smaller sides have to be larger than the longest side
Express the quantity of the Cayennepepper im lemon juice in form one
Answer:
HUH
Step-by-step explanation:
convert 43 minutes to seconds
Answer:
2580 seconds
Step-by-step explanation:
There are 60 seconds in 1 minute, so you do 43 * 60 = 2580 seconds
Nora measured a community college and made a scale drawing. She used the scale 3 millimeters : 2 meters. If a building at the college is 96 millimeters wide in the drawing, how wide is the actual building?
Answer:64 Meters
Step-by-step explanation:
What is the diameter of a circle with a circumference of 132 ft? Use 227 for π . Round your answer to the nearest whole number.
Answer:
The answer is 132 feet
Step-by-step explanation:
That's the diameter.
C = pi * d
C = 3.14 * 42
C = 131.88
Thar rounds to 132 feet.
which angles are congruent to each other
Answer:
Angles that are vertical or across from each other are congruent or equal.
If a trader gained 15% by selling an
article for A1560.00, what is the cost
price of the article?
Answer$67
Step-by-step explanation:
Answer:
A or B
Step-by-step explanation: