Answer:
D
Step-by-step explanation:
The required explanatory variable is concentration of active ingredients. Option D is correct.
Given that,
From the paragraph, "Medical researchers studying a medication in male and female patients 20 to 29 years old noticed that, up to a certain amount, a larger concentration of an active ingredient lead to greater levels of symptom relief." it is to be determined which is an explanatory variable.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
A) age of patient = Not explanatory
B) gender of the patient = Not explanatory
C) amount of symptom relief = Not explanatory
D) concentration of active ingredient = Explanatory
Thus, the required explanatory variable is the concentration of active ingredients. Option D is correct.
Learn more about simplification here: https://brainly.com/question/12501526
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A cell phone plan costs $200 to start. Then there is a $50 charge each month.
What is the total cost (start-up fee and monthly charge) to use the cell phone plan for 1 month?
Drag the tiles to the correct boxes to complete the pairs.
Match each sequence of transformations to the graph that proves shape I is similar to shape II when applied to shape I.
a reflection across the
y-axis, followed by a
90° clockwise rotation
about the origin, and then
a dilation by a scale factor
of 0.5
a translation 7 units
right and 4 units down,
and then a dilation
by a scale factor of 2
a reflection across the
y-axis, followed by a
90° counterclockwise
rotation about the origin,
and then a dilation by a
scale factor of 0.5
a reflection across the
y-axis, and then
a dilation by a scale
factor of 2
Answer:
Heyyyy :)
1- 7 units up 4 down; dil 2
2- clockwise rotation
3- reflection; dil 2
4- Counter-clockwise rotation
Step-by-step explanation:
I'm sorry if you don't understand but when I was writing my notes I shortened it and I don't remember the real wording.
But if you read the problems the two that are very similar are the same but one of the problems says clockwise and the other is counter-clockwise. And the one that is shorter than the other three problems is the reflection; dil 2, and the other is kinda obvious. I hope you understand!!!!!
Byeeeee :)
solve 49x + 9 equals 49x + 83. does an equation have one solution, no solution, or infinitely many solutions? write two equations in one variable that have the same number of solutions as his equation
it has no solution. 0=74 means it cannot be solved. if it was 0=0 then it would be infinite solutions
What is the value of x if 29 = 2x + 21 (give answer as an integer)
Please give me an explanation too I need help Solve for y: 2x-y=3
Answer:
y = 2x -3
Step-by-step explanation:
to solve for y, simply isolate the y so in this case move 2x to the right side of the equation in which it becomes -y= -2x +3 and then divide by -1 which is beside the -y essentially cause y cannot be negative so then the equation becomes y = 2x -3
Answer:
y=2x-3
Step-by-step explanation:
2x-y=3
-2x on both sides of the equal sign which leaves you with -y=-2x+3
divide both sides by negative 1
y=2x-3
Heidi is designing a two-lane running track for an athletic club the track will go around a regtangle that will have an area of 3600 m2 the length and width of the regtangle must be a whole number. Draw five possible tracks which track is the longest ?
Answer:
i was asking the same question srry ion know adyyy daddy
Step-by-step explanation:
The Mad Hat Company must ship two different-sized boxes: The small ones cost them 45 cents each and weigh 6 ounces, and the large ones weigh 25 ounces and cost $1.20 each. The total shipment this morning weighed 20 pounds 7 ounces and cost $18.45. How many packages of each size were shipped?
Given :
The Mad Hat Company must ship two different-sized boxes: The small ones cost them 45 cents each and weigh 6 ounces, and the large ones weigh 25 ounces and cost $1.20 each.
The total shipment this morning weighed 20 pounds 7 ounces and cost $18.45.
To Find :
How many packages of each size were shipped.
Solution :
We know, 1 pound = 16 ounces.
So, 20 pound = 20×16 = 320 ounces.
Let, number of large and small box are l and s.
So,
25l + 6s = 327 ...1)
0.45s + 1.20l = 18.45 ...2)
Solving both the equations, we get :
x = 9 and y = 17
Therefore, package smaller and big size are 17 and 9 respectively .
Hence, this is the required solution.
Which statement is true?
Answer:
Step-by-step explanation:
c.
Simplify
-4x+2x2-x2+5-3x
Answer:
9 - 7x - x²
Step-by-step explanation:
-4x+2x2-x²+5-3x = -4x-3x+2x2+5-x²
I arranged the like terms together so it is easier to do the calculations.
-4x-3x+2x2+5-x² = -7x+4+5-x²
Simplify.
-7x+4+5-x² = 9-7x-x²
Answer:
[tex]x^{2} -7x+5[/tex]
Step-by-step explanation:
First, organize it by highest degrees: [tex]2x^{2} -x^{2} -4x-3x+5[/tex]
Then combine like terms: [tex]x^{2} -7x+5[/tex]
What is 2 1/4×4 2/7
Answer:
9.643
rounded to the nearest thousandth
Which of the following best describe(s) the slope of a linear function?
Select all that apply.
intersection with the y-axis
rise over run
run over rise
average rate of change
Answer:
I think the answer will be:
Run over rise and intersection with the y-axis
Step-by-step explanation:
When an item is marked up by a certain percent and then marked down by the same percent, is the sale price equal to the price before the markup and markdown? Explain.
Answer:
Step-by-step explanation:
For these, you calculate the markup or markdown in absolute terms (you find by how much the quantity changed), and then you calculate the percent change relative to the original value. So they're really just another form of "increase - decrease" exercises. A computer software retailer used a markup rate of 40%.
Which rational number could come next?
Answer:
maybe D
Step-by-step explanation:
A
B
C
D
Please help me
Answer:
b and d
Step-by-step explanation:
what is 90% of 20????
Answer:
18
Step-by-step explanation:
Multiply 20 by 0.90 (that is 90%)
18 is the answer
Hope this helps :)
Answer:
18
Step-by-step explanation:
Hello there. This problem can be easily solved by setting up a ratio.
This would be as follows
[tex]\frac{90percent}{100}[/tex] x [tex]\frac{x}{20 }[/tex]
after solving for x we find that 90% of 20 should be 18.
Hope this helps!
What would this be fill it in ? If you know it :)
Answer:
for the first one y is -4
second one x is -1
third one y is 2
aNNNND for the last one x is 1!
sorry for any mistakes if there are, but I hope this helped!! :D
find the average rate of change on the interval when x equals 1 to x equals 3
у= - 3х - 3
у = х + 5
Answer:
(x,y)=(-2,3)
Step-by-step explanation:
Since both expressions -3x-3 and x+5 are equal to y, set them equal to eachother forming an equation in x
-3x-3=x+5
solve the equation for x
x= -2
substitute the given value of x into the equation y=x+5
y= -2 +5
solve the equation for y
y=3
the possible solution of the system is the ordered pair (x,y)
(x,y) = (-2,3
check if the given ordered pair is the solution of the system of equations
{3= -3x(-2) -3
{3= -2 +5
simplify the equalitites
{3=3
{3=3
since all the equalitites are true, the ordered pair is the solution of the system
(x,y)=(-2,3)
Hope this helps!! I would really appreciate a brainliest
Brock rides his bike 2218 miles to the nature preserve. On his way home, after 1615 miles, he stops at a deli for lunch. How far is Brock from home?
Answer:
He is 603 miles away from home.
Step-by-step explanation:
To find the answer you subtract 1,615 from 2,218 and you'll get 603 miles.
ermest works in the shipping department loading shipping crates with boxes. Each empty crate weighs 150 lb. How many boxes, each weighing 35 lb, can Ernest put in the crate if the total weight is to be no more then 850 lb?
Max weight of the crate - the empty crate/ by 35 (the weight of the individual boxes)
850-150=700
700 lbs is the remaining weight available that can be filled with 35 lb boxes, to find out the number of boxes that can be added to the crate, divide 700 by 35.
700/35 = 20
Ernest can put in 20 boxes in the crate.
Alex is thinking of a number. Twenty less
than one fourth of the number is -45. Find Alex’s number.
i need the equation.
Answer:
¼x - 20 = -45
¼x = -25
x = -100
Step-by-step explanation:
To solve this we can write it out into an equation. Let's use the variable x for the number Alex is thinking of. Then we can take out each information to see what it means mathematically. We need to see what operation is being done.
"twenty less than one fourth of the number" The second part is using mutiplication, as indicated by "of." So we would write a quarter (one fourth) times the number (x). The first part is using subtraction, indicated by "less than." This would be expressed by "- 20"
Putting it together:
¼x - 20
"is -45" this is joining the expression to an equation. So this would simply mean " = -45 " Then our equation is:
¼x - 20 = -45
Now we can solve it.
¼x - 20 = -45
¼x = -25
x = -100
1. If a hexagon represents one whole what does 4 triangles represent?
2. If If a hexagon represents one whole what does 1 hexagon and 1 trapezoid represent?
3. If a hexagon represents one whole what does a rhombus represent ?
4. If a hexagon represents one whole what does 3 rhombus represent?
5. If a hexagon represents one whole what does 1 trapezoid represent?
6. If a hexagon represents one whole what does 2 hexagons represent?
PLZZ HELP
Answer:
triangel, hexagon, square
Step-by-step explanation:
because thy are just better then the oters and hexagons are more famous
Find the values of the variables.
Note: these diagrams are not drawn to scale.
X = ____ .
Y= ____ .
Please help! I’m giving brainliest to the first person who answers :)!
Answer:
Step-by-step explanation:
x=64 degrees
y=52 degrees
It is an isosceles triangle which has two angles of the same measurement, Pretty easy to figure out.
Answer:
x= 64 ansdy=52
Step-by-step explanation:
Since the 64 line is congruent to the "x" line, it must be 64. A triangle's angles equal 180 so 180-64-64= 2 giving you "y"
Can uh help me Please
with work show will give uh brainlish!!!
Answer:
2a. 9854, 24219, 30045
2b. 7986, 17213, 19000, 88344
3a. 108359
3b. 41059
If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!
Answer:
Q2. a. 9854; 24219; 30045
Q2. b. 7986; 17213; 19000; 88344
Q3 a. 108349
Q3 b. 41059
can you please help me
Answer:
Yes.
Step-by-step explanation:
Yes, the equation is in standard from because the way standard form is written is: Ax+By=C.
Hope this helps! Have a great day!! （*^w^*）
What number is missing in the pattern?
2, 6,__ 54, 1162
А 21
B 17
C 15
D 18
One side of a rhombus is 9 ft. What
is its area?
Answer:
48
Step-by-step explanation:
just sub in the formula
Anyone know the answer?
Please hurry I need this fast
Answer:
Option 2
Step-by-step explanation:
∠CAB ≅ ∠CED (Given)
∠ACB ≅ ∠ECD (Vertical angles)
2). AA
What is the inverse of the function g(x)=5(x-2)g(x)=5(x−2)g, left parenthesis, x, right parenthesis, equals, 5, left parenthesis, x, minus, 2, right parenthesis
Answer:
(x+10)/5
Step-by-step explanation:
Given the function
g(x) = 5(x-2)
Open the parenthesis
g(x) = 5x-10
To find the inverse we need to follow the steps;
Step 1; make y as g(x)
y = 5x-10
Step 2; replace y with x;
x = 5y - 10
Step 3; make y the subject of the formula;
x = 5y-10
5y = x+10
y = (x+10)/5
Step 4: substitute y as g^(-1)(x)
g^(-1)(x) = (x+10)/5
Hence the inverse of the function is (x+10)/5
Answer: x+10/5
Step-by-step explanation:
Same as above