Answer:
1 3/4, or 1.75
Step-by-step explanation: -0.25 + - 1.5 = 1.75
Help me in please anyone
Answer:
Y=3/7x+8 and y=-7/3x-34/3(11 1/3)
Step-by-step explanation:
for the perpendicular line, the slope is the opposite inverse (3/7) and since 3/7×-7=-3, -3+8=5, hence, y=3/7x+8.
for the parallel line the slope is the same, and since -7/3×-7=49/3,
and 49/3-15/3(5)=34/3, the equation is y=-7/3-34/3
need help asap pls!!!
Answer:
16
Step-by-step explanation:
According to the given description, PS is the mid segment of the [tex] \triangle TQR[/tex]
Therefore by Mid-segment Theorem:
[tex]PS = \frac{1}{2} QR \\ \\ PS = \frac{1}{2} \times 32 \\ \\ PS =16 \: [/tex]
What is the greatest common factor of 43 and 81?
Answer: 43=1 81=3 Might not be right. Hope it is.
use the quadratic formula to solve 2x^2 -1 = 7x, and then verify your answer by graphing
Answer:
7+- root 57 / 4
d. 7+root 57/4 , 7-root 57/4 on edg
Step-by-step explanation:
got it right :)
Answer:
D
Step-by-step explanation:
Edge 2021
What is an aquifer?
Why is gravity part of the water cycle ?
Answer:
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials. It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water. Gravity pulls denser air and water downward, forcing less dense air and water to move upward.
Step-by-step explanation:
A doctor wants to determine if a new medication for cholesterol is more effective than the previous medication. The doctor informs his patients of the new medication and asks if they want to participate in a study. Patients who are currently taking medication for cholesterol are randomly selected and given the new medication. After two months, the patients’ cholesterol levels are checked.
Which of the following would benefit this experiment the most?
A This experiment should also use the original medication to see if the patients’ cholesterol levels would improve because they believe they are receiving the new medication.
B This experiment should use blinding and a placebo, so patients do not know which treatment they are receiving and to control for the placebo effect.
C This experiment should be single blind, with some patients taking the new medication and some taking the original medication to determine the effects of the new medication. Only the subjects would not know which treatment they are receiving.
D This experiment should be double blind, with some patients taking the new medication and some taking a placebo to determine the effects of the new medication. Neither the subjects nor the technicians checking the cholesterol would know which treatment was given to which group.
Answer:
its option 3
Step-by-step explanation:
got 100% on it
Blinding and placebo should be used in this experiment to prevent patients from knowing which therapy they are receiving and to account for the placebo effect.
What is the placebo effect?A person experiences the placebo effect when their physical or mental health seems to get better after receiving a placebo or "dummy" treatment. A treatment that seems to be real but is intended to have no therapeutic benefit is referred to as a placebo.
Given, If a new cholesterol drug is more successful than the old one, a doctor wants to know. The doctor tells his patients about the new drug and inquires about their interest in taking part in a trial. Randomly chosen patients who are already receiving cholesterol medication are given the new drug. The patients' cholesterol levels are assessed after two months.
Treatments with placebos cause the brain to react in a real way. Belief in the efficacy of a treatment can cause the release of neurotransmitters, the synthesis of hormones, and immunological response, which can reduce the symptoms of pain, inflammatory diseases, and mood disorders.
Therefore, In order to keep patients from knowing which therapy they are taking and to take the placebo effect into account, blinding and placebo should be employed in this experiment.
Learn more about the placebo effect here:
https://brainly.com/question/29811617
#SPJ2
PLSSS HELPPP PLEASEEEEEEEEE
Answer:
1. -21
ill do others in a bit
Which is the equation of the line that passes through the point (-4,3) and (2,6)
Answer:
[tex]\displaystyle y = \frac{1}{2}x + 5[/tex]
Step-by-step explanation:
Equation of a Line
The point-slope form of the equation of a line is:
y - k = m ( x - h )
Where m is the slope and (h,k) is a point through which the line passes.
Suppose a line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the formula:
[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]
We'll use the points (-4,3) and (2,6), thus:
[tex]\displaystyle m=\frac{6-3}{2+4}=\frac{3}{6}=\frac{1}{2}[/tex]
Now we use the point-slope form using the point (2,6):
[tex]\displaystyle y - 6 = \frac{1}{2}( x - 2 )[/tex]
Operating:
[tex]\displaystyle y - 6 = \frac{1}{2}x - 1[/tex]
[tex]\displaystyle y = \frac{1}{2}x - 1 + 6[/tex]
[tex]\boxed{\displaystyle y = \frac{1}{2}x + 5}[/tex]
Marinella buys 5 pounds of white potatoesband 7/8 as many pounds of sweet potatoes how many pounds of sweet potatoes does she buy use paper to model the problem with the tape diagram in the boxes below expression answer as both a fraction greater than one and a mixed number
2. Encuentra o solocion de la cocasion X²-x-30=0
Answer:
Step-by-step explanation:
Por aspa simple:
x²+x-30=0
X +6
X -5
(x+6)(x-5)=0
x+6=0
x=-6
x-5=0
x=5
espero te sirva suerte en tus estudios :D
Age range, years 18-28 29-39 40-50 51-61 62 and over
Midpoint x 23 34 45 56 67
Percent of super shoppers 9% 46% 22% 11% 12%
For the 62-and-over group, use the midpoint 67 years.
(a) Compute the expected age μ of a super shopper. (Round your answer to two decimal places.)
μ = yr
(b) Compute the standard deviation σ for ages of super shoppers. (Round your answer to two decimal places.)
σ = yr
Answer:
41.81 ; 12.67
Step-by-step explanation:
Given the data:
Age range, years 18-28 29-39 40-50 51-61 62 and over
Midpoint x 23 34 45 56 67
Percent of super shoppers 9% 46% 22% 11% 12%
Midpoint, x : 23 34 45 56 67
Frequency, f : 0.09_ 0.46 _ 0.22 __0.11 __ 0.12
The mean(m)
Σfx / Σf
[(23 * 0.09) + (34 * 0.46) + (45 * 0.22) + (56 * 0.11) + (67 * 0.12)] / (0.09 + 0.46 + 0.22 + 0.11 + 0.12)
= 41.81 / 1
Mean = 41.81
Standard deviation :
Sqrt[(Σ(X² * f) / Σf) - m²)]
((23^2*0.09) + (34^2*0.46) + (45^2*0.22) + (56^2*0.11) + (67^2*0.12)) / 1
1908.51 - 41.81^2
Sqrt(160.4339)
= 12.666250
= 12.67
The graph shows the career interests of the students at Linda’s school. Suppose there are 400 students at the school. How many of them want to be an athlete? (Example 1)
Step-by-step explanation:
Percentage of students who want to be an athlete
= 12%.
400 students * (12%/100%) = 48 students.
Hence 48 students want to be an athlete.
The number of athletes students which are 12% of 400 students will be 48.
What is the percentage?The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
The graph shows the career interests of the students at Linda’s school. Suppose there are 400 students at the school.
From the graph, the percentage of athletes is 12%.
The number of athletes students which are 12% of 400 students will be given as,
⇒ 12% x 400
⇒ 0.12 x 400
⇒ 48
The number of athletes students which are 12% of 400 students will be 48.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
3n2 + 13n+4= 0
Solve equation by factoring
Answer:
n = -4, -1/3.
Step-by-step explanation:
3n^2 + 13n+4= 0
3n^2 + 12n + n + 4 = 0
3n(n + 4) + 1(n + 4) = 0
(3n + 1)(n + 4) = 0
n = -4, -1/3.
Jenny's family is having pizza for supper. There are six people in Jenny's family. Jenny's mother has asked her to cut the pizza into six pieces. Type a fraction describing the amount of pizza that each person in the family will receive.
/
Answer:
1/6
Step-by-step explanation:
1 peice of pizza for each person with a total of 6 peices
tell me the answer to 5/15+67/30=
Answer: 77/30
Step-by-step explanation:
Hope this helps :)
1+1+90+1000+=
YOu will get 70 points
Answer:
THe answer is 1092.
Step-by-step explanation:
1 + 1 + 90 + 1000
2 + 90 + 1000
92 + 1000
1092
Answer:
YEA!! THX
Step-by-step explanation:
(03.01)
The LCM of 3 and 7 is
(2 points)
A
Question 2 (6 points)
Answer:
The LCM of 3 and 7 is 21Step-by-step explanation:
I hope it helps ❤❤Answer:
The LCM of 3 and 7 is 21Step-by-step explanation:
I hope it helpswhat set of angles can form a triangle
Answer:
3 acute angles
1 right 2 acute
1 obtuse 2 acute
Step-by-step explanation:
Answer: Acute and 1 right would be a set of angles that are able to form triangle.
ROUND OFF 13.4625 TO THE NEAREST TEN THOUSANDTHS
Answer:
13.46
Step-by-step explanation:
the number after 6 is less than 5 so the number wont change
Suppose a culture of 200 bacteria are put in a petri how many bacteria will be there after 8 hours
Answer:i DIO! think the answer would be 50
Step-by-step explanation:
if im correct please give me brainly wrrryyyyy... (yes im a weeb)
-4=16x what would u do to solve this equation?
Answer:
x=-1/4
Step-by-step explanation:
-4/16=16x/16
-1/4=x
What perfect square that is between 1 and 100 has 27 as one of its factors?
Answer:
81
Step-by-step explanation:
Its a perfect square and 27*3=81
what is the answer to this ⅓(6x-9)
Answer:
3 - 2x
Step-by-step explanation:
Answer:
9-9x = 0 x=1
Step-by-step explanation:
Put each term in 6+(-9-6 x)/3-x over the common denominator 3: 6+(-9-6 x)/3-x = 18/3+(-9-6 x)/3-(3 x)/3:
18/3+(-9-6 x)/3-(3 x)/3 = 0
18/3+(-9-6 x)/3-(3 x)/3 = (-3 x+(-9-6 x)+18)/3:
(-3 x-6 x-9+18)/3 = 0
Grouping like terms, -3 x-6 x-9+18 = (18-9)+(-6 x-3 x):
((18-9)+(-6 x-3 x))/3 = 0
-6 x-3 x = -9 x:
(-9 x+(18-9))/3 = 0
18-9 = 9:
(9-9 x)/3 = 0
Multiply both sides of (9-9 x)/3 = 0 by 3:
(3 (9-9 x))/3 = 3×0
(3 (9-9 x))/3 = 3/3×(9-9 x) = 9-9 x:
9-9 x = 3×0
0×3 = 0:
The sum of 12 and twice Chrissy's savings
PLSS do dis...................UwU
okay so plz answer this question step by step,, thank you
Given:
Total number of students = 20
The marks of the students are 40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37 and 40.
To find:
The frequency distribution table with class size 10.
Solution:
We have, the marks of 20 students.
40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37, 40
Here,
Minimum value = 12
Maximum value = 48
We nee class intervals of size 10. So, the required class intervals are 10-20, 20-30, 30-40, 40-50. In these intervals, lower limit is excluded but the upper limit included.
The required frequency distribution table is
Class intervals Marks Frequency
10-20 12, 15 2
20-30 22, 27, 20, 25 4
30-40 36, 30, 31, 34, 36, 39, 36, 37 8
40-50 40, 41, 43, 48, 46, 40 6
Total 20
Therefore, the frequency distribution table is
Class intervals: 10-20 20-30 30-40 40-50 Total
Frequency : 2 4 8 6 20
PLEASE ANSWER ASASP AND GIVE BRAINLEST!!!!!!!!!!!!!
The equation c = 2.5t represents the cost, c, for t tickets to the school play. Does a value of 3.5 for t make sense in this situation? Explain your reasoning.
Answer:
No
Step-by-step explanation:
Number of tickets can only be represented by integer values. A value of 3.5 for t would imply you can purchase three and a half tickets, which isn't possible.
(-8 ) – (- 8 ) =. *
1 point
A. 16
B. -16
C. -8
D. 0
Answer:
D
Step-by-step explanation:
(-8) - (-8) = (-8) + 8 = 0
I hope this answer helped, and if it was correct, please mark this as brainliest! Thank you!
What is the value of x in simplest radical form?
X=
Answer:
Step-by-step explanation:
in this triangle
X^2=a^2+b^2
X^2=15^2+8^2
x^2=225+64
x^2=289
x=17
Answer:
X is always equal to 1 no matter the equation. In this it looks like you are using Pyth. Theory. If its not sorry, but X = 1
Step-by-step explanation:
[tex]A^{2} +B^{2}=C^{2} \\15^{2}+8^{2} \\225+64\\C^{2}=289\\\sqrt289\\C=17[/tex]
What is the best measure of center for this data set?
{101, 2, 108, 104, 102, 107, 109, 102}
A) mean because there is an outlier
B) mean or median because there is no outlier
C) median because there is an outlier
D) mode because there is an outlier