Answer:
get help by a tutor
Step-by-step explanation:
The diameter of the Sun is approximately 1,392,000,000 meters. What is this length
expressed in scientific notation
Answer:
1392 x 10 m
Step-by-step explanation:
Answer:
1.392 x 10⁹ m
Step-by-step explanation:
when you put numbers in scientific notation, there is one (1) non-zero number before the decimal
1.392
now count how many place you would have to move the decimal to the right in order to make 1,392,000,000
9 place
this means your second half looks like x 10⁹
now put it all together
1.392 x 10⁹ m
A gambler plays roulette 100 times betting $1 on two numbers, 7 and 11, each time. If the ball lands on either 7 or 11 then gambler wins $17, if the ball lands on any of the other 36 numbers the gambler loses $1. The roulette wheel has 38 slots numbered 1-36, 0, and 00 a) Which is the appropriate box model? 1. The box has 38 tickets: 1 marked "7" and 1 marked "11" and the rest marked 2. The box has 38 tickets: one each of 1,2,3,...36,0, and 00 3. The box has 38 tickets: 2 marked "17" and 36 marked 4. The box has 38 tickets:2 marked "17" and 36 marked "-1"
In a regression analysis if SST = 4500 and SSE = 1575, then the coefficient of determination is:___________.A) 0.35B) 0.65C) 2.85D) 0.45
Answer:
B) 0.65
Step-by-step explanation:
In a regression analysis, the formula for the coefficient of determination (R²)=
1 - SSE/SST
SSE = Sum of squared of errors
SST = Total sum of squares
From the above question,
SST = 4500
SSE = 1575
Coefficient of determination (R²) = 1 - 1575/4500
= 1 - 0.35
= 0.65
Therefore, the coefficient of determination = 0.65
The coefficient of determination of the given parameter is (b) 0.65
The given parameters are:
[tex]SST = 4500[/tex] --- the total sum of squares
[tex]SSE = 1575[/tex] --- the sum of squares error
The coefficient of determination (R²) is calculated using the following formula
[tex]R^2 = \frac{SST - SSE}{SST}[/tex]
Substitute values for SST and SSE
[tex]R^2 = \frac{4500 - 1575}{4500}[/tex]
Simplify the numerator
[tex]R^2 = \frac{2925}{4500}[/tex]
Divide the fraction
[tex]R^2 = 0.65[/tex]
Hence, the coefficient of determination is (b) 0.65
Read more about coefficient of determination at:
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If point P(2,-4) is reflected over the x-axis, determine coordinates of the image
Answer:
it would most likely be positive (2,4)
Step-by-step explanation:
Write 2,000,000 + 70,000 + 5,000 + 40 + 6 in word form?
Answer:
You can add the numbers or count according to the number of zeroes present in the expanded form and write the digits down.
2075046
Answer:
Step-by-step explanation:
two million seventy five thousand forty-six
What is the equation that represents the scenario?
O y = x + 5
O y = 5x
O y = 3x
O y = x + 15
Answer:y=5x
Step-by-step explanation:
B
Answer:
B. y=5xHave a good day! :) :) :)
Put these numbers in order from least to greatest.
-1, 21/28, -22/25
Answer:
-22/55,-1,21/28
Step-by-step explanation:
Answer:
-1, -22/25,21/28
Step-by-step explanation:
21/28 is positive so its the greatest
-22/25 is greater then one so its in the middle
and -1 is the least
Brainliest helps
The set of ordered pairs (-1, 8), (0, 3), (1, -2), and (2. -7) represent a function. What is the range of the function?
{x x=-1, 0, 1, 2}
fy: y=-7, -2, 3, 8}
{x: x= -7, -2,-1, 0, 1, 2, 3, 8}
{y: y = -7, -2,-1, 0, 1, 2, 3, 8}
Answer:
B
Step-by-step explanation:
got it right on edg
Answer:
B
Step-by-step explanation:
Just got it correct on Edge!!!!!
The table of values below represents a linear function and shows Marco’s progress as he is pumping gas into his car. What is the output for the initial value? Gas in Marco’s Car Seconds Spent Pumping Gas 0 12 24 36 48 Gallons of Gas in Car 3 5 7 9 11 0 gallons 2 gallons 3 gallons 6 gallons
Answer:
C
Step-by-step explanation:
The initial value obtained using the slope-intercept relation is 3 gallons.
We need to obtain the rate of change which gives the amount of gas entering into his car per second :
Rate of change = Rise / RunRate of change = - 11 - 3) / (48 - 0)
Rate of change = 8/48 = 1/6 gallons
Using the slope intercept relation :
y = bx + c b = slope ; c = initial amount of gasChoosing any pair of (x, y) point on the table :
(0, 3)
3 = 1/6x + c
3 = 1/6(0) + c
3 = 0 + c
c = 3
Therefore, the initial value is 3 gallons.
Learn more : https://brainly.com/question/23105648
what is the answer
Answer:
The answer is C.
Step-by-step explanation:
On each unit go left 4 spots and down 3 spots.
Hamid has gained weight. He now weights 88kg, which is 10% higher than his normal weight. What is Hamids normal weight
Let his normal weight = 100%
He is 10% more so he is 110%
Divide his weight now by 110% to find his normal weight.
88/1.1 = 80
His normal weight is 80 kg
Rufus collected 18 pounds of
aluminum cans to recycle. He
plans to collect an additional 2
pounds each week. He wants to
collect a total of 42 pounds of
aluminum cans. Let x represent
the number of weeks Rufus
collects aluminum cans.
Answer:
12
Step-by-step explanation:
collected can=18pound
total can to collect=42
collected can per week=2
now,
42-18 =24
so, remaining cans to collect is 24pound
and,
24/2
=12
so, Rufus have to collect for 12 weeks for 42pound of cans in total
Donovan is buying plates and cups for a party do you want to same number of each plate or solid in packs of 8 cups are sold in packs of 12 what is the least number of plates and cups that Donovan can buy
Answer:
the awnser is 4
Step-by-step explanation:
For a fundraiser the sixth graders have 288 bags of popcorn to sell. There are 3 sixth- grade classes. If each class sells an equal number of bags, how many bags of popcorn does each class sell?
Answer:
96
Step-by-step explanation:
288 divide by 3
A bicycle path divides a rectangular park. The path makes a 42° angle with the top border of the park, so mZ1 = 42°. What is m/2? How do you know?
Answer: 0.5 meters because m=meters and meters/2 = 0.5
The required measure of the angle m∠2 is 138°.
Given that,
A bicycle path divides a rectangular park. The path makes a 42° angle with the top border of the park, so mZ1 = 42°. What is m/2 is to be determined.
The rectangle is 4 sided geometric shape whose opposites are equal in lengths and all angles are about 90°.
Here,
According to the question,
Let the measure be x,
Now the bicycle path divides the rectangular park,
So,
m∠1 + m∠2 = 180
42 + x =180
x = 180 - 42
x = 138°
Thus, the required measure of the angle m∠2 is 138°.
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Find the area of a right triangular region whose sides containing the right angles are 20m and 15m.
Answer:
Step-by-step explanation:
You have everything you need to find the area directly
A = 1/2 * b * h
b = 20
h = 15
Area = 1/2 * 20 * 15
Area = 150 m^2
On a multiple choice test, each question has 7 possible answers. If you make a random guess on the first question, what is the probability that you are correct? a. 1 b. 7 c. 1/7 d. 0
Answer:
c (1/7)
Step-by-step explanation:
The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A random sample of 150 orders will be used to estimate the proportion of first-time customers.Required:a. Assume that the president is correct and p = 0.30. What is the sampling distribution of p bar for this study?b. What is the probability that the sample proportion p bar will be between 0.20 and 0.40?c. What is the probability that the sample proportion will be between 0.25 and 0.35?
Answer:
Step-by-step explanation:
p = .3
n = 150
p(bar ) = 1 - p = .7
[tex]\sigma_p=\sqrt\frac{p(1-p) }{n} }[/tex]
[tex]\sigma_p=\sqrt\frac{.3(1-.3) }{150} }[/tex]
=.037
b )
P ( .2 <p<.4 ) = P [ (.2 - .3) / .037 < z < ( .4 - .3 ) / .037 ]
= P [ (-2.7 < z < +2.7 ]
= .9965-.0035
= .993
c )
P ( .25 <p<.35 ) = P [ (.25 - .3) / .037 < z < ( .35 - .3 ) / .037 ]
= P [ (-1.35 < z < +1.35 ]
= .9115 - .0885
= .823
A crew of highway workers paved 14 mile in 16 hour. If they work at the same rate, how much will they pave in one hour?
Simplify each expression . Justify each step . (6^7) (5^3 +2) (2- 2)
Answer:
0
Step-by-step explanation:
Start with exponents inside parentheses
(279936)(125+2)(2-2)
Then solve inside parenthesis
(279936)(127)(0)
Then Multiply
0
Anything times zero is zero
I need help thank you
Answer:
Dilation factor is 2 (two)
Step-by-step explanation:
The dilation factor that maps one triangle ABC to its image A'B'C' can be obtained by finding the relationship between the x and y coordinates of each image point to the original:
A' = (6, 2) when A is (3, 1)
We observe a factor of 2 in the two coordinates.
B' = (-4, 4) when B is (-2, 2) Also a factor of 2 (two)
Same for point C.
what is the area in square meters of 6 triangles
solve 2n + 3n + 7 = -41 in variable
Answer: N=-9.6
Step-by-step explanation: Please mark me brainliest
Can someone help me ? Its due today please
Answer:
x=3
y=5
Step-by-step explanation:
3x+2y=19
- 2x+2y=16
_____________
x=3
3(3)=9
19-9=10
10÷2=5
y=5
Answer:
x=3
y=5
Step-by-step explanation:
Method 1 ; Substitution Method
[tex]3x + 2y =19\\2x+2y=16\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:3x+2y=19:\\\quad x=\frac{19-2y}{3}\\\\\mathrm{Subsititute\:}x=\frac{19-2y}{3}\\\begin{bmatrix}2\times \frac{19-2y}{3}+2y=16\end{bmatrix}\\\\Simplify\\\begin{bmatrix}\frac{38+2y}{3}=16\end{bmatrix}\\\mathrm{Isolate}\:y\:\mathrm{for}\:\frac{38+2y}{3}=16:\quad y=5\\\\\mathrm{For\:}x=\frac{19-2y}{3}\\\\Substitute\:y\:= \:5\\x=\frac{19-2\times\:5}{3}\\\\\frac{19-2\times\:5}{3}=3\\\\x=3,\:y=5[/tex]
Method 2 : Elimination method
[tex]\begin{bmatrix}3x+2y=19\\ 2x+2y=16\end{bmatrix}\\\\\mathrm{Multiply\:}3x+2y=19\mathrm{\:by\:}2\:\\\mathrm{:}\:\quad \:6x+4y=38\\\\\mathrm{Multiply\:}2x+2y=16\mathrm{\:by\:}3\:\\\mathrm{:}\:\quad \:6x+6y=48\\\\\begin{bmatrix}6x+4y=38\\ 6x+6y=48\end{bmatrix}\\\\6x+6y=48\\-\\\underline{6x+4y=38}\\2y=10\\\\\begin{bmatrix}6x+4y=38\\ 2y=10\end{bmatrix}\\\\\mathrm{Solve}\:2y=10\:\mathrm{for}\:y:\quad y=5\\\mathrm{For\:}6x+4y=38\mathrm{\:plug\:in\:}y=5[/tex]
[tex]\mathrm{Solve}\:6x+4\times\:5=38\:\mathrm{for}\:x:\quad x=3\\\\x=3,\:y=5[/tex]
which inequality represents the following situation 3/5×5 less than a number is no more than 27
Answer:
Step-by-step explanation:
I need help with this question
Answer:
D
Step-by-step explanation:
Evaluate the expression:
(4 * 5)2 – 6 + 3 = (pls help)
Choose the equivalent ratio for 6:7
a
36:42
b
42 to 36
c
3:4
d
2:18
Sorry for the late answer, but it's A.
Explanation 6 times 6 equals 36, and 7 times 6 equals 42.
Brainiest?
The scale of a map says that 4 cm represents 5 km.What is the actual number of kilometers that is represented by 5 centimeters on the map?
Hey there! I'm happy to help!
We see that 4 cm represents 5 km. We want to see how much 5 cm represents.
To get from 4 cm to 5 cm, you multiply by 5/4. So, we multiply our 5 km by 5/4 to see how kilometers are represented by 5 centimeters on the mask.
5(5/4)=6 1/4
Therefore, the number of km represented by 5 cm on the map is 6 1/4 km.
Have a wonderful day! :D
Please help me please help me!
Step-by-step explanation:
D=360-20-25-80=235
x=360-235=125
Answer:
BDC + ABD +ACD + BAC = 360
80 + 20 + 25 + BDC = 360
BDC + 125 = 360
BDC = 360-125
BDC = 235
Now,
BDC + x = 360
235 + x= 360
x = 360-235
x = 125
