Answer:
Probability tells you the likelihood of an event happening
Ross drives 280 miles in 4 hours. If Ross continues to drive at the same rate, how many miles can he drive in 12 hours?
Answer:
Step-by-step explanation:3,360
What is the best next step in the constructed of a line that passes through point C and is parallel to AB? (Assume that the arc drawn with the compass placed at point A was the result of the last step performed.)
Answer:
B
Step-by-step explanation:
using the same compass setting, place the point of the compass at C and draw an arc that intersects ĀB
B. using the same compass setting, place the point of the compass at C and draw an arc that intersects ĀB
Parallel lines are lines in a plane that are always the same distance apart. Parallel lines never intersect.
So, the next step should be using the same compass setting, place the point of the compass at C and draw an arc that intersects ĀB.
Therefore the correct option is C.
Learn more:https://brainly.com/question/9018125
In a class full of men and woman 4/7 are woman what is the ratio of men and woman in the simplist form ?
Answer:
4:7
Step-by-step explanation:
i don't think that you can simplify it any further so you just change the / to a :
Which is greater or less then 2/3 Or 1 3/4
Answer:
2/3 < 1 3/4
Step-by-step explanation:
2/3 is less than 1 3/4
2/3 as a decimal is 0.6666667
1 3/4 as a decimal is 1.75
So, 1.75 is more than 0.6666667
PLZ HELP MEH!! it would mean a lot! :) thx
Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?
-15m = -4m
-7m - 8 = m - 4
-3m - 8 = 4 - m
m - 4 = -7m - 8
-8 - 7m = -4 + m
-8 - 3m = 4 - m
Step-by-step explanation:
-2m - 5m - 8 = 3 - 7 + m
Solving like terms
-7m - 8 = - 4 + m
Rearranging
-7m - 8 = m - 4
In a study done in Miami's economically disadvantaged community, it was determined that 38 out of 62 children who attended preschool needed social services later in life compared to 49 out 61 children who did not attend preschool. Test the claim that the proportion of children who need social services later in life is greater amongst the children who did not attend preschool compare to the ones who did attend preschool. Use a 0.05 level of significance.
Answer:
Step-by-step explanation:
This is a test of 2 population proportions. Let 1 and 2 be the subscript for the children who attended preschool and need social services later in life and children who did not attend preschool and need social services later in life. The population proportion for the children who attended preschool and children who did not attend preschool would be p1 and p2 respectively.
p1 - p2 = difference in the proportion of proportion of the children who attended preschool and children who did not attend preschool .
The null hypothesis is
H0 : p1 = p2
p1 - p2 = 0
The alternative hypothesis is
Ha : p1 < p2
p1 - p2 < 0
it is a left tailed test
Sample proportion = x/n
Where
x represents number of success(number of complaints)
n represents number of samples
For children who attended preschool,
x1 = 38
n1 = 62
p1 = 38/62 = 0.61
For children who did not attend preschool,
x2 = 49
n2 = 61
p2 = 49/61 = 0.8
The pooled proportion, pc is
pc = (x1 + x2)/(n1 + n2)
pc = (38 + 49)/(62 + 61) = 0.71
1 - pc = 1 - 0.71 = 0.29
z = (p1 - p2)/√pc(1 - pc)(1/n1 + 1/n2)
z = (0.61 - 0.8)/√(0.71)(0.29)(1/62 + 1/61) = - 0.19/0.08183139728
z = - 2.32
Since it is a left tailed test, we would determine the probability for the area below the z score from the normal distribution table. Therefore,
p = 0.01
Since alpha, 0.05 > than the p value, 0.01, then we would reject the null hypothesis. Therefore, At a 5% level of significance, the the proportion of children who need social services later in life is greater amongst the children who did not attend preschool compare to the ones who did attend preschool.
Can somebody help me on this one?
Answer:
I pretty sure the answer is Nervous
nervous, because it sends signals to your brain and it’s basically the main thing that makes you move.
for example, when the oven is hot you can feel the heat and notice how you don’t touch it, that’s because your brain knows that if you touch the oven you’re going to burn yourself and your brain stops you from touching the surface of the oven.
The principal uses a computer to randomly select the name of a student from all the students in
the school. With the computer program, it is possible to draw the name of the same student
twice. If the principal selects the name of a student from the Voyagers on the first try, what is
the probability she will draw the name of another student from the Voyagers on the second try?
answer choices
81/399
41/200
1/82
21/100
Complete Question
Stillwater Junior High divides students into teams taught by a group of teachers. The table shows the number of students in each team.
Team{Number of Students}
Acers{78}
Blazers{80}
Outbacks{83}
Quasars{77}
Voyagers{82}
Total-400
Answer:
(A)81/399
Step-by-step explanation:
The probability that the Principal selects a voyager on the first try is:
82/400
Since another student is to be selected, the total population has reduced by 1 and the number of voyagers likewise has been reduced by 1.
Therefore:
Probability that another voyager is selected on the second try =
81/399
The correct option is A.
Answer:
41/200 B
Step-by-step explanation:
The student never gets taken away from the count so.
first pull probability is.. 82/400 second is... 82/400 simplify by dividing by 2. Equals 41/200
HELPZZZZ PLEZZZZZZZ
The height of a pyramid is doubled, but its length and width are cut in half. What is true about the volume of the new pyramid?
A) The new pyramid has a volume that is One-fourth the volume of the original pyramid.
B) The new pyramid has a volume that is One-half the volume of the original pyramid.
C) The new pyramid has the same volume as the volume of the original pyramid.
D) The new pyramid has a volume that is 2 times the volume of the original pyramid.
It's only one answer!!!
Answer:it is B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
I got it correct
How many solutions does the equation 8x-4=10 have ? PLEASE HELP QUICK
Answer:
one solution
Step-by-step explanation:
8x-4=10
Add 4 to each side
8x - 4+4 = 10+4
8x = 12
Divide by 8
8x/8 = 12/8x
x = 3/2
Answer:
one solution
Step-by-step explanation:
[tex]8x - 4 = 10 \\ 8x = 10 + 4 \\ 8x = 14 \\ \frac{8x}{8} = \frac{14}{8} \\ x = \frac{7}{4} [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
$1500.00 in a simple interest savings account. Two years later, the total account balance is $1665.00.
What is the interest rate of the savings account?
What will be the total amount of money in the account after 8 years? $
please answer
Answer:
interest rate=45.04
I after 8 years=5994
step on step explainaton:
I=PRT
1500=1665×r/100×2
r=45.04
I after 8 years= I=PRT
=1665×45/100×8=5994
ZA=
Round your answer to the nearest hundredth.
B
9
?
С
3
A
Answer:
∠A ≈ 71.57
Step-by-step explanation:
You use inverse tangent since it gives you the opposite and adjacent sides: [tex]tan^-1[/tex]
[tex]tan^-1(9/3)[/tex]
≈ 71.565
Round to nearest hundredth:
≈ 71.57
Evaluate the finite geometric series for the specified number of terms. 1 + 2 + 4 + 8 + 16 + ...; n = 27
What is the length of side AB
Answer:
5 units
Step-by-step explanation:
Using the distance formula:
[tex]AB=\sqrt{(-3-(-8))^2+(-6-(-6))^2}=\sqrt{5^2}=5[/tex]
Hope this helps!
Quadrilateral EFGH is inscribed in a circle. If m∠F = 114° and m∠G = 78° then which of the following is the measure of ∠H?
Answer:
m∠H=66°
Step-by-step explanation:
Since Quadrilateral EFGH is inscribed in a circle, it is a Cyclic quadrilateral.
Theorem: Opposite Angles of a Cyclic Quadrilateral are Supplementary.
Angles F and H are opposite angles of a cyclic quadrilateral and by the theorem above:
m∠F+m∠H=180 degrees
114° +m∠H=180°
m∠H=180° - 114°
m∠H=66°
. Find the range of the data.
7,4, 12, 1, 8, 8, 4, 14, 13, 9, 11, 10, 2,7,5, 3, 1, 8,5,3
Answer:
Range: 13
Step-by-step explanation:
Population size:20
Lowest value: 1
Highest value: 14
Answer: 13
Hope this helps.
Please help! Correct answers only please!
You roll a 6-sided die two times.
What is the probability of rolling an odd number and then rolling a 3?
Simplify your answer and write it as a fraction or whole number.
Answer:
1/12
Step-by-step explanation:
to get a odd number is a 1/2 chance. to roll a 3 is a 1/6 chance. multiply those together to get 1/12.
Please help me with this question is hard and i will give you a Brainiest
Answer:
0
Step-by-step explanation:
10(x-2)=-20
10x-20=-20
10x=0
x=0
Which polyhedron has more faces than a tetrahedron but fewer faces than an
octahedron?
A. Dodecahedron
B. Hexahedron
c. lcosahedron
D. Pyramid
Answer:
B. Hexahedron
Step-by-step explanation:
It helps to know the number faces in the named solids.
tetrahedron: 4 faces
octahedron: 8 faces
A. Dodecahedron : 12 faces
B. Hexahedron : 6 faces
D. lcosahedron : 20 faces
D. Pyramid: 4 for a triangular pyramid; more for other pyramids
Which polyhedron has more than 4 faces and less than 8 faces?
Answer: B. Hexahedron
The reason the answer is not a pyramid is that a pyramid may have exactly 4 faces or more than 7 faces.
Answer:
B
Step-by-step explanation:
Cube or Hexahedron ( 6 faces) has more faces than tetrahedron ( 4 faces), but fewer than octahedron ( 8 faces)
18 = -4x -9 + 3 resolver
Answer:
The answer is X=-4 hope this helps.
Answer:
Hope it helps! Mark as brainlist.
plz help me I can't do anything and I have to pass this assignment for online School
Answer:
It will take 8
Step-by-step explanation:
2 cubic units we take 1 / 4 which four equals one and eight equals 2, so it will take a eight 1/4 to fill the prism.
A scientist is measuring the temperature change in a decimal compound. The temperature dropped 11 f per hour from the original temperature. After four hours the temperature was 90 f find the compounds original temperature.
Answer:
[tex] F = mt +b[/tex]
From the info given we know that m =-11 and we have a condition given:
[tex] F =90 , t =4[/tex]
Using this condition we have:
[tex] 90 = -11*4 +b[/tex]
And solving for b we got:
[tex] 90 +4*11 = 90 +44= 134[/tex]
So then the original temperatue for this case is 134 F
Step-by-step explanation:
For this case we know that after four hours the temperature was 90 f and the temperature dropped 11 f per hour.
We can use a linear model to solve the problem given by:
[tex] F = mt +b[/tex]
Where F represent the temperature, t the time in hours and m the slope and b the intercept.
From the info given we know that m =-11 and we have a condition given:
[tex] F =90 , t =4[/tex]
Using this condition we have:
[tex] 90 = -11*4 +b[/tex]
And solving for b we got:
[tex] 90 +4*11 = 90 +44= 134[/tex]
So then the original temperatue for this case is 134 F
The table shows the height in feet, y, of a pebble dropped from a tall bridge after x seconds.
Which descriptions are true of the function shown in the table? Check all that apply.
quadratic
linear
rational
y = –16x + 150
y = –16x2 + 150
y = + 150
nvm . jus got it wrong and it's A and E
Answer:
The answer is A & E
Step-by-step explanation:
quadratic
y=-16x^2 + 150
Answer: A and E
Step-by-step explanation:
edge 2023
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
Answer:
We divided the figure into 1 triangle and 2 rectangles.
Adding up the area of them, we get the total area:
A = 14 x (10 + 8 + 12 - 16)/2 + 8 x 5 + 6 x (12 + 8)
= 258 (yd2)
Hope this helps!
:)
Rewrite the equation by completing the square.
x^2+ 12x + 36 = 0
Answer:
(x+6)^2 =0
Step-by-step explanation:
x^2+ 12x + 36 = 0
Subtract 36 from each side
x^2+ 12x + 36-36 = 0-36
x^2 +12x = -36
Take the coefficient of x
12
Divide by 2
12/2 =6
Square it
6^2 =36
Add this to each side
x^2+ 12x + 36 = -36+36
(x+12/2)^2 = 0
(x+6)^2 =0
The given quadratic equation [tex]x^2+ 12x + 36 = 0[/tex] is written in squaring form as [tex](x + 6)^2 = 0[/tex].
Used the concept of a quadratic equation that states,
An algebraic equation with the second degree of the variable is called a Quadratic equation.
Given that the equation is,
[tex]x^2+ 12x + 36 = 0[/tex]
Now completing the square as
[tex]x^2+ 12x + 36 = 0[/tex]
It can be written as,
[tex]x^2+ 12x + 6^2 = 0[/tex]
[tex]x^2+ 2\times 6\times x + 6^2 = 0[/tex]
[tex](x + 6)^2 = 0[/tex]
Therefore, the equation is written as [tex](x + 6)^2 = 0[/tex].
To learn more about the quadratic equation visit:
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Doroteo determined that the correlation coefficient for a set of data was -.9 what percent of the total variation in the Y values is not explained by the regression line
Answer: 10%
Step-by-step explanation:
(1 - 0.9) × 100 = 10%
With a correlation Coefficient of -0.9. This signifies a strong negative correlation between the x and y variables. That is an increase in the x variable leads to a corresponding decrease in the y variable and vice versa. The correlation Coefficient could also be interpreted to mean that about 90% of the variation in the y variable is explained by the regression line or equation. With the the remaining 10% being unexplained. This is why a correlation Coefficient of 1 or - 1 refers to a perfect relationship, meaning 100% variation in y is explained by the regression line.
Solve the following equation 3x-1=2x -2/3
Answer:
1/3
Step-by-step explanation:
3x-1 = 2x -2/3
Collect like terms.
3x -2x = 1 - 2/3
x=1/3
What is the greatest common factor of 8m^{2}8m
2
8, m, squared, 4m4m4, m, and 10m^410m
4
10, m, start superscript, 4, end superscript?
Answer:
2mStep-by-step explanation:
Given the functions 8m², 4m and 10m⁴, in order to find the greatest common factor, we will find a factor common to all the functions as shown;
8m² = 2*2*(2*m)*m
4m = 2*(2*m)
10m⁴ = (2*m)*5*m³
from the three expansion, it ca be seen that only 2 and m are common to all the function as shown in parentheses.
The greatest common factor factor will be the product of 2 and m i.e 2*m = 2m
Shantanu bought more apples than bananas, and he bought more bananas than cantaloupes. Let a represent the number of apples Shantanu bought, let b represent the number of bananas, and let c represent the number of cantaloupes. Let's compare the expressions b+c and a. Which statement is correct?
Answer:
There is not enough information to tell
Step-by-step explanation:
We are given that:
a>b
b>c
Therefore:
a>c
However, we are not given enough information to draw a relationship between b+c and a.
In order to better understand this situation, try applying values. Let a=4, b=2, and c=1.
In this case, a > b+c. However if a = 9, b=8 and c=7, then a < b+c.
In both stipulated cases, the given conditions are met, but no conclusion can be reached regarding the relationship between b+c and a.
A quadrilateral is circumscribed around a circle. The sum of the lengths of two of its opposite sides is 15 cm. Find the perimeter of the quadrilateral.
Answer:
The perimeter of the quadrilateral is 30 cm.
Step-by-step explanation:
To circumscribe implies drawing a required figure around a given figure, while to inscribe means drawing a required figure inside a given figure. From the question, the quadrilateral is circumscribed around the circle.
And given that the sum of the lengths of its two opposite sides is 15 cm.
The perimeter of a figure is the sum of the length of the sides of the figure. For this quadrilateral, the sum of opposite sides are equal.Thus;
Perimeter of the quadrilateral = 2(l+b)
= (l + b) + (l + b)
= 15 + 15
= 30
The perimeter of the quadrilateral is 30 cm.