Answer:
y=0.2x-20
Step-by-step explanation:
1) the common view of the line in the slope-intercept form is:
y=s*x+i, where s - the value of the slope (it is 0.2 according the condition), i - the value of intercept (to be calculated);
y=0.2*x+i.
2) if to substitute the given coordinates (1.25;-17.5) into the common view, then:
-17.5=1.25*0.2+i;
it is possible to calculate the value of 'i': i= -20.
3) if the slope=0.2, the intercept= -20, then the required equation of the line is:
y=0.2x-20.
Suppose that IQ scores have a bell-shaped distribution with a mean of 104
104 and a standard deviation of 17.Using the empirical rule, what percentage of IQ scores are between 70 and 138?
Answer:
68%
Step-by-step explanation:
The empirical rule basically states that 68% of the data falls within one standard deviation from the mean, 95% of the data falls within two standard deviations from the mean, and 99.7% of the data falls within three standard deviations from the mean.
So to find the percentage of IQ scores between 70 and 138, you need to find how far each of these numbers is from the mean in terms of the standard deviation.
If you subtract the standard deviation from the mean, you receive 87, and if you add the standard deviation to the mean, you receive 121.
This means that both of these numbers are within one standard deviation from the mean meaning according to the empirical rule, that means 68% of the IQ scores are between 70 and 138.
good luck, i hope this helps :)
Answer:
99.7%
Step-by-step explanation:
According to the empirical rule, approximately 99.7% of data values lie within 3 standard deviations of the mean.
1 ½ - 6/10 =
HELP PLS
Answer:
0.9
Step-by-step explanation:
1 1/2 = 1.5
6/10 = 0.6
1.5 - 0.6 = 0.9
Which of the following expressions is
equivalent to 12x + 8y?
Someone please help !!
Answer:
What are the options please ^^
Step-by-step explanation:
------------------------------------------------------------------------
Answer:
Step-by-step explanation:
Solve
Factor
12x+8y
Answer
4(3x+2y)
Individual A has a circle of five close friends (B, C, D, E, and F). A has heard a certain rumor from outside the circle and has invited the five friends to a party to circulate the rumor. To begin, A selects one of the five at random and tells the rumor to the chosen individual. That individual then selects at random one of the four remaining individuals and repeats the rumor. Continuing, a new individual is selected from those not already having heard the rumor by the individual who has just heard it, until everyone has been told.
a. What is the probability that the rumor is repeated in the order B, C, D, E, and F?
b. What is the probability that F is the third person at the party to be told the rumor?
c. What is the probability that F is the last person to hear the rumor?
d. If at each stage the person who currently "has" the rumor does not know who has already heard it and selects the next recipient at random from all five possible individuals, what is the probability that F has still not heard the rumor after it has been told ten times at the party?
Answer:
Step-by-step explanation:
From the given information;
The possible number of ways to select these people in order B, C, D, E, and F is:
= 5 × 4 × 3 × 2 × 1
= 120
However, using the order B, C, D, E, and F; The probability that the rumor is repeated is:
= 1/120
= 0.0083
b)
If we make F the subject here by selecting it such that F has not been selected in the first and second draw;
Then:
The possible numbers of ways to select F as third = 4 × 3 × 2 × 1
= 24
Now;
the required probability of F is the third person: = 24/120
= 0.2
c)
Suppose F is selected as the last person to hear the rumor;
Then, the selection of F in the last row = 4 × 3 × 2 × 1
Recall that; the total possible number of ways to select the person is B, C, D,E, and F which is = 120
Then, the required probability of F as the last person to hear the rumor is:
= 24/120
= 0.2
d)
Here, the required probability of F since F has not heard the rumor after it has been told tren times is:
= 4¹⁰
Let's no forget that the total number of possible ways to select the persons using the above criteria is = 5¹⁰
Thus, the required probability of F = 4¹⁰/5¹⁰
= 0.1074
The temperature dropped 3 degrees every hour for six hours. The temperature started
at 0 degrees. What was the new temperature? hurry
Answer:
-18 degrees
Step-by-step explanation:
3 x 6 (For the degrees and hour)
Please help me ASAP......
Answer:
step 1. factor out a 35.
step 2. 35(3 + m).
69/85 in its simplified form. My you tube Riley Gaming
Answer: 4/5
Step-by-step explanation:
Answer: 69/85 is the simplified form. You can't simplify it.
Step-by-step explanation:
Suppose that a company wishes to predict sales volume based on the amount of advertising expenditures. The sales manager thinks that sales volume and advertising expenditures are modeled according to the following linear equation. Both sales volume and advertising expenditures are in thousands of dollars.
Estimated Sales Volume =46.63+0.47(Advertising Expenditures)
If the company has a target sales volume of $275,000, how much should the sales manager allocate for advertising in the budget?
Answer:
$485890
Step-by-step explanation:
Given
Estimated Sales Volume =46.63+0.47(Advertising Expenditures)
Required
Find the allocated amount for advertising expenditure when target sales is $275000
Represent the sales volume with V and The advertising expenditure with a.
So, the expression is:
[tex]V = 46.63 + 0.47A[/tex]
Since the expression is in thousands, substitute 275 for V
[tex]275 = 46.63 + 0.47A[/tex]
Collect Like Terms
[tex]275 - 46.63 = 0.47A[/tex]
[tex]228.37= 0.47A[/tex]
Make A the subject
[tex]A = \frac{228.37}{0.47}[/tex]
[tex]A = 485.89[/tex]
Hence, $485890 should be allocated for advertising
Sasaasaasasaassaaaassjsjsjhdhhsjwia
Answer:
vdksirbdhkbwgxi2ndhk djzm ez my dude
leah writes the following
18-6=12
12-6=6
6-6=0
which equation could lead use to represent the same problem?
A. 6×1=6 C. 6÷3=2
B. 18÷18=1 D. 18÷6=3
The equation Y+B=3(x-9) is written in point-slope form. What is the equation written in slope-intercept form?
Oy-x-3
O y-3x+9
O y-sx-9
O y-3x+3
Answer:
[tex]y = 3x - 27-b[/tex]
Step-by-step explanation:
Given
[tex]y + b = 3(x - 9)[/tex]
Required
Write in slope intercept
Open bracket
[tex]y + b = 3x - 27[/tex]
Collect Like Terms
[tex]y = 3x - 27-b[/tex]
Help please this is urgent
Answer:
uh lol havent done this in awhile ngl..... most likely 8?
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
its on the line
You are making 100 mL of a saline solution in science class that has a strength of 50%.
You are going to mix some 40% saline solution with some 60% saline solution to do this.
How much of each should you add?
HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP
Answer:
thisis your answer 100,000
Step-by-step explanation:
100
50
40
this is how you add it and you will get your answer
Which of the following fractions is closer to 0 than to 1
A. 2/10
B. 5/6
C.8/9
D. 4/9
E. 1/8
Answer:
it's E
Step-by-step explanation:
Because the 1 is closer to 0
identify the quadrilateral (help pls)
Answer:
A) would be a parallelogram B) would a rectangle C) would be a trapezoid and D) would be a square
Step-by-step explanation:
4. What equation represents the data table shown below?
х
0
-2
-4
-6
-8
у
8
12
16
20
24
y = -2x + 8
y = 14/8x +8
y=-1/2x + 8
y = 1/2x - 8
Find the sum of the first 47 terms of the following series, to the nearest integer.
9,18,27,...
Answer:
10152
Step-by-step explanation:
Common difference:
18-9=9
27-18=9
d=9
Explicit formula:
an = a1 +(n-1)d
a47 = 9+ (46)(9)
a47 = 423
Find sum: Sn = n(a1+an)/2
47(9+423)/2
47(423)/2 = 20304/2 = 10152
Which relationships describe angles 1 and 2?
Select each correct answer.
O vertical angles
O complementary angles
O adjacent angles
O supplementary angles
Since the sum of angles 1 and 2 equals 90°, and they also share same side and same vertex, then, the relationships that describe both angles would be:
B. Complementary angles
C. Adjacent angles
What are Complementary Angles?Complementary angles are two angles whose sum equals 90 degrees (right angle).
Thus:
m∠1 + m∠2 + 90° = 180° (straight line angle)
m∠1 + m∠2 = 180° - 90°
m∠1 + m∠2 = 90°
Therefore, since the sum of angles 1 and 2 equals 90°, and they also share same side and same vertex, then, the relationships that describe both angles would be:
B. Complementary angles
C. Adjacent angles
Learn more about complementary angles on:
https://brainly.com/question/16281260
Can someone explain how to find
Answer:
155°
Step-by-step explanation:
<O=24
<P=2x+9
<N=180-(3x-28) (It’s the supplement of 3x-28)
Add them together to equal 180. (180 is the sum of the 3 interior angles of a triangle.)
24+2x+9+180-(3x-28)=180
24+2x+9+180-3x+28=180
-1x+241=180
-1x=-61
x=61
Now that we’ve solved for x, plug it back into <MNO
<MNO=3x-28=3(61)-28=183-28=155°
Please guys answer to my question 24 30. 45 finding lcm
Can someone help me on this?
Write 2847 correct to the nearest 100
y= 2x+4
How many solutions does this linear system have?
x + 2y = 8
O one solution: (8,0)
one solution: (0, 8)
no solution
O infinite number of solutions
Answer:
the answer is (-8,0)
Step-by-step explanation:
thats the right answer
HELP NOWWWWW PLEASEEEEE
How many 1/3's are in 1 and 2/3?
Answer:
5 thirds
Step-by-step explanation:
Make 1 2/3 into a improper fraction. Now you have 5/3. 5/3-(1/3*5)=0
Therefore, 5x1/3=5/3=1 2/3
Answer:
This guy is wrong. 1 2/3 is equal to 5/3. But that is not the answer(like that dummy above said)
The Question is asking "How many 1/3's are in 1 2/3" (5/3)
The answer is 5, not 5/3's.
im stuck on this... martin saw a book he wanted with a price of $32.00 the clerk told him it was on sale for $28.00 what is the precent change for the book?
The radius of a circle is 4 m. Find its area in terms of \piπ.
Answer:
50.3
Step-by-step explanation:
A=πr2=π·42≈50.26548
I need help with this I don't understand it best answer gets brainly
Answer:
2.638, 3.16, 3[tex]\frac{7}{11}[/tex], [tex]\frac{73}{20}[/tex]
Step-by-step explanation:
Convert all the numbers as a decimal, this will make it easier to determine which value is greater or not.
Have a great day :)
Answer:
Hey:) Answer is below!
Step-by-step explanation:
Okay so the easiest thing I would do for each of these would be first to simplify them. So for the first one, 73 divided by 20, you could either do it on a calculator or just by long division. As a result, 73 divided by 20 is 3.65. The next two numbers, 2.638 and 3.16 are simplified, so you're good! Now lastly we got a mixed fraction. What you would do first, would be to multiply the left farmost number (in this case, 3) by the bottom number (which is 11). After that you would add the product of 3 and 11 (that would be 33) by 7. 33 plus 7 is 40. Finally, your number would be 40 over 11. Divide 40 by 11 (on a calculator or by long division) and you get 3.63. Now look at all your numbers, it should look like this: 3.65, 2.638, 3.16, 3.63
After that look at the number before the point (that would be 3 in the first one, 2 in the second, 3 in the third, and 3 in the fourth number). You see which one would be the smallest, and in this case it would be the second number, 2.638. So 2.638 goes first. Then look at the first number after the point for the last three numbers (that would be 6 for the first, 1 for the third, and 6 for the fourth). 1 in the third number is the smallest, so next goes 3.16. (This is the order for now: 2.638, 3.16)
Finally look at the second number after the point for the last two numbers (that would be 5 for the first and 3 for the fourth) 3 in the fourth number is the smallest, so next goes 3.63
As a result, you get this order from smallest to largest:
2.638,3.16, 3 7/11, 73/20
Good luck:))
This hanger is in balance. There are two
labeled weights of 7 grams and 30 grams. The
four circles each have the same weight. What
is the weight of each circle, in grams?
Answer:
The weight of each circle is 2g
Gina has two job offers as a dog walker. She wants to earn at least $75 each week. The first offer pays $15 each week plus $3 per dog walked. Let x represent the number of dogs walked.
Answer:
Step-by-step explanation:
15+3x≥75
3x≥75-15
3x≥60
x≥20
"Triple a number is 18."
Show all work
Answer: 6
Step-by-step explanation:
3x = 18
Divide 18 by 3
x = 6