Answer:
7.2
Step-by-step explanation:
If 125 students take a test in psychology and 20 get scores of less than or equal to 50%, then what is the percentile rank of a test score of 50%?
Group of answer choices
12
20
50
16
Answer:
20
Step-by-step explanation:
Find the values of x and y.
Answer:
The answer is A, x=15 and y=17
Step-by-step explanation:
12x+2=146 what does X equal
Answer:
x = 12
Step-by-step explanation:
12x = 146 - 2
x = 144 ÷ 12
x = 12
The number of students in a chess club decreased from 40 to 19. What is the percent decrease? Round your answer to the nearest percent. The percent decrease is %.
Answer:
i think its 20
Step-by-step explanation:
Answer:
46
Step-by-step explanation:
Amount of change = Greater Value − Lesser Value
= 24 − 13 Substitute values.
= 11 Subtract.
Find the percent decrease. Round to the nearest percent.
Percent Change =
Amount of Change
Original Amount
=
11
24
Substitute values.
≈ 0.458 Divide.
= 46% Write as a percent and round.
The percent decrease is 46%.
please help me, i really don't know how to solve this question
Answer:
60 degrees
Step-by-step explanation:
40 degrees + 2y+20 degrees makes a straight angle. (from alternate interior angles postulate)
Thus, 2y+60 degrees = 180, or 2y = 120 degrees.
This means y = 60 degrees
helppppp I need to find the points,slope and y-intercept
Answer:
The y-int is -3, There is a point at (-15,0), (-30,3), The slope is -1/5
Step-by-step explanation:
The slope formula is y2-y1/x2-x1 which if you use it for those points, you get -1/5
Hope this makes sense! If you need help, just comment!!
The word total tells you that the operation involved in the relationship is
Answer:
the word total tells you the operation is addition
Given the function f(x) = - 5x² – 13x – 5,
f(20) = ???
Answer:
-2265
Step-by-step explanation:
First, we replace x with 20.
[tex]f(20)=-5*20^2-13*20-5[/tex]
Then, we evaluate.
The * stands for multiplication.
[tex]f(20)=-5*20^2-13*20-5\\-5*400-260-5\\-2000-260-5\\-2265[/tex]
[tex]f(20) = - 5 \times {20}^{2} - 13 \times 20 - 5 \\ [/tex]
[tex]f(20) = - 5 \times 400 - 260 - 5[/tex]
[tex]f(20) = - 2000 - 260 - 5[/tex]
[tex]f(20) = - 2265[/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
PLS HELP!! GCF of 14, 15, 21
Answer:
It should be 1
Answer: 1 is your answer!
Step-by-step explanation:
GCF = 1
for the values 14, 15, 21
Solution by Factorization:
The factors of 14 are: 1, 2, 7, 14
The factors of 15 are: 1, 3, 5, 15
The factors of 21 are: 1, 3, 7, 21
Then the greatest common factor is 1.
Please help!
A factory used 72kg of tomatoes to make 8 batches of pasta sauce .
what quantity of tomatoes did the factory put in each batch?
Please answer 5-8 ASAP I will give brainliest
Answer:
5. m∠A = 26
6. m∠D = 118
7. m∠E = 43
8. m∠H = 85
Step-by-step explanation: complementary= 90 supplementary = 180
5. (2x - 8) + (4x +4) = 90
6x - 12 = 90
6x = 102
x = 17
m∠A = 2x - 8
m∠A = 2(17) - 8 = 26
6. (2x + 18) + (5x + 8) = 180
7x + 26 = 180
7x = 154
x = 22
m∠D = 5x + 8
m∠D = 5(22) + 8 = 118
7. (2x + 15) + (3x + 5) = 90
5x + 20 = 90
5x = 70
x = 14
m∠E = 2x + 15
m∠E = 2(14) + 15 = 43
8. (5x - 20) + (4x + 7 ) = 180
9x - 27 = 180
9x = 207
x = 23
m∠H = 4x -7
m∠H = 4(23) - 7 = 85
What is the solution to this inequality?
-13x < 65
O A. x<-5
O B. x>5
O c. x<5
O D. x>-5
Answer:
It’s D, X>-5
I’m sure I had that question and I got it right
Write an equation, in slope-intercept form, to model each situation. You rent a bicycle for $20 plus $2 per hour.
Jude graphed the inequality s
Is his graph correct? Explain why or why not.
Answer:
Sample Response: No, Jude’s graph is incorrect. The inequality symbol is “less than,” so -9 is not included. He should have used an open circle on -9.
Step-by-step explanation:
sample response on edge 2020
Answer:
The < symbol means that -9 is not included in the solution. The graph should have an open circle, not a closed circle. The arrow is pointing in the correct direction.
Step-by-step explanation:
edge 2021
Write an equation for the line that is parallel to the given line and passes through the given point . Write the equation of the line in y=mx+b form
y=5x-7;(2,-2)
A parallel line has the same slope as the original equation. Therefore, the slope (m in y=mx+b) will be 5. From there, we can use the point-slope formula and convert it into the slope-intercept formula (y=mx+b).
Point-slope is:
y-y₁=m(x-x₁)
Plug in our known values:
y-(-2)=5(x-(2))
Distribute and set it equal to y:
y+2=5x-10
y=5x-12
Let me know if you have any more questions :)
Mae Ling earns a salary of $360 plus a 8.0% commission on sales at a gift shop. How would she make in a week if she sold $4,900 worth of merchandise.
PLEASE HELP I WILL MARK BRAINLIEST PLEASEE
answer
757
Step-by-step explanation:
I just know made a A on the test
The next two terms of the sequence 4,7,10,13 are?
Answer:
16,16
Step-by-step explanation:
All you have to do is add 3 every time. i hope it helps
Answer:
16, 19
Step-by-step explanation:
add 3 each term
It cost $12 to attend a golf clinic with a local pro. Buckets of balls for practice during the clinic cat $6 each
Answer:
$30 but the number depends on the bucket of balls used
Step-by-step explanation:
$12 + $6b =
$12 + $6(3) =$30
b= bucket of balls
I used 3 bucket of balls for this clinic
I need help with this?
Answer:
1/2 because if a is 1 d is half of that so the answer is 1/2.
Translate "Fifteen more than a number."
A, 15 + x
B, X + 15
C. X-15
D. 15x
Which table best describes a function with exponential decay?
PLEASE HELP!!!!
What is the y-intercept of the function f(x)=4 – 5x?
ОООО
О Т + 0
Answer:
The y-intercept of the function is 4
Step-by-step explanation:
The y-intercept is the point at which the graph crosses the y-axis.
The diameter of the average cell in the human body is 1 x 10^-5 meters. The diameter of a grain of sand is about 2 x 10^-4 meters. The diameter of a human hair is about 0.000025 meters. Part B (3 points): How many times longer is the diameter of a grain of sand than the diameter of the average cell in the human body? Show your work.
A basketball team played six games. In those games, the team won by 9 points, lost by 18, won by
8, won by 11, lost by 3, and won by 5. What was the mean difference in game scores over the six
games?
Answer: 8
The mean is the average, the average means to add all the numbers, then divide by how much numbers there are. This means 8+14+9+10+1+6 = 48, 48/6 which equals 8.
Joseph and Wendy were catching tadpoles. At first Wendy caught nine times three more than Joseph caught. Joseph was upset and released half of Wendy 's tadpoles, and then six times as many as Joseph caught swam away. After all of this, Wendy only had three tadpoles left. How many tadpoles did Joseph catch?
Answer:
Joseph caught 7 tadpoles
Step-by-step explanation:
Let the number of tadpoles caught by Joseph be x
The number of tadpoles Wendy caught will be ;
9(x + 3)
After Joseph was upset, he released half of Wendy’s tadpole and then six times as many as Joseph caught swam away leaving Wendy with only three tadpoles left;
Hence, mathematically;
9(x + 3)/2 - 6x = 3
Multiply through be 2
9(x + 3) - 12x = 6
9x + 27 -12x = 6
9x -12x = 6-27
3x = 21
x = 21/3
x = 7
please help me I'm so confused
Kathy babysits for $7.25 an hour plus $5.75 in transportation cost. Jared babysits for $7.50 an hour plus $3.25 in transportation cost. After how many hours is Jared the more expensive sitter?
Aisha, Silvio, and Jim, each solved the same equation. Aisha's answer was x = 4, Silvio's answer was x = 8, and Jim's answer was x = 16. If either Aisha or Jim, but not Silvio, is correct, which of these equations could it be? Select all that apply. x3 = 64 x2 = 4 x2 = 16 x2 = 256 x2 = 64 x3 = 8
Answer:
x³ = 64x² = 16x² = 256Step-by-step explanation:
Equations and solutions
x³ = 64 ⇒ x = ∛64 = 4x² = 4 ⇒ x =√4 ⇒ x = ±2x² = 16 ⇒ x = √16 ⇒ x = ±4x² = 256 ⇒ x = √256 ⇒ x = ±16x² = 64 ⇒ x = √64 ⇒ x = ±8x³ = 8 ⇒ x = ∛8 ⇒ x= 2Aisha's answer = 4
Silvio's answer = 8
Jim's answer = 16
If either Aisha's or Jim's answer is correct then possible equations with same answers are:
x³ = 64x² = 16x² = 256Do the side lengths of 8, 15, and 20 form a triangle? Explain.
Can you explain how you did this
Yes; The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
The side lengths 8, 15, and 20 form the sides of a .triangle
In order to determine whether the length of the sides forms a triangle, we will use the theorem that states that:
The sum of any two sides of the triangle must be greater than the thirdGiven the side lengths 8, 15 and 20
Taking the sum of any two sides;
8 + 15 = 23
Since 23 > 20 (third side), this shows that the theorem is true
Similarly;
8 + 20 = 28Since 28 > 15 (third side), this shows that the theorem is trueAlso;
15 + 20 = 35Since 35 > 8 (third side), this shows that the theorem is trueSince all the conditions are met, hence the side lengths form a triangle.
Learn more here: https://brainly.com/question/24323553
Given the points (2,4),(-2,6),(1,3), and (0,3), categorize the domain and range.
Domain
Range
No Answers Chosen
ING
1
Possible answers:
2
3
All real numbers
-2
0
4
6
2
3
4
Answer: range: 3, domain: 4
Step-by-step explanation:
the range of a problem is basically the difference between the smallest and the largest y value. the largest y value here is 6 and the smallest is 3, so 6-3 = 3 -> 3 is your range! now for domain: the domain of a problem is the difference between the smallest and largest x value. the largest x value is 2 and the smallest is -2, so 2 - -2 = 4 -> the domain is 4! hope this helped!
What´s after -2 in a number line of negatives
Answer:
After negative 2 it would be negative 3
Step-by-step explanation:
---------------------------
-3 -2 -1 0
