Answer:
see below
Step-by-step explanation:
Is means equal and of means multiply
36 = 75% * 48
36 = .75* 48
36 = 3/4* 48
36 =36
Using the tape diagram
Divide 48 into 4 pieces
12 12 12 12
Then circle 3 of them
12 +12 + 12
36
Answer:
Correct
Step-by-step explanation:
75% of 48
75/100 × 48
3/4 × 48
36
Divide the tape of length 48 units into 4 parts, 3 parts add up to 36
What is the equation of the linear function ?
Answer:
B: -1/2x +3
Step-by-step explanation:
the graph is up 3 units, making the +3. Rise/run to determine slope. it rises 1 unit for every 2 units it runs. i
Which number is written in scientific notation?
A. 4.5 x 10^-3
B. 14.5 x 10^2
C. 0.78 x 10^-6
D. 5.7 x 4^8
Answer:
B hope this helped:) (please tell me if it was right or wrong)
Solve the equation square root of 3x+4=4
The solution of equation for x is,
⇒ x = 4
We have to given that;
The equation is,
⇒√ (3x + 4) = 4
Now, We can simplify as;
⇒ √3x + 4 = 4
Take square both side,
⇒ 3x + 4 = 4²
⇒ 3x + 4 = 16
Subtract 4 both side,
⇒ 3x = 16 - 4
⇒ 3x = 12
Divide by 3;
⇒ x = 12/3
⇒ x = 4
Thus, The solution of equation for x is,
⇒ x = 4
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Solve the system of equations.
y = x + 3
y = x2 - 2x - 1
A.
(-1, 7) and (4, 2)
B.
(-1, 4) and (4, -1)
C.
(-1, 2) and (4, 7)
D.
(1, 4) and (-4, -1)
Answer:
The answer is ( -1, 2) and ( 4,7 )
Step-by-step explanation:
Answer:
Step-by-step explanation:
x^2 - 2x - 1 = x + 3
x^2 - 3x - 4 = 0
(x - 4)(x + 1)= 0
x - 4 = 0
x = 4
y= 4^2 - 2(4) - 1 = 16-8-1= 8-1= 7
(4, 7)
x + 1 = 0
x = -1
(-1)^2 - 2(-1)-1= 1+2-1=3-1=2
(-1,2)
answer is C
justin purchased n notebook. they were 4 dollars each. write and equation to represent the total cost c that Justin paid.
Answer:
c=4n
Step-by-step explanation:
hope this helps
Hours Spent Studying
Students were asked how many hours during the
weekend they studied for a Monday exam. Each row of
the table represents one sample from the class. Find
the mean of each sample.
11
8
9
4.
6
CO
6
N
Mean of samples in row 1:
14
0
3
7
Mean of samples in row 2:
6
4.
6
N
Mean of samples in row 3:
Mean of samples in row 4:
hellppp
Answer:
the answer is
mean of samples in row 1: 8
Mean of samples in row 2: 5
Mean of samples in row 3: 6
Mean of samples in row 4: 4
Answer:
Mean of samples in row 1:
✔ 8
Mean of samples in row 2:
✔ 5
Mean of samples in row 3:
✔ 6
Mean of samples in row 4:
✔ 4
What is 3 120/10 simpfly to
Answer:
15
Step-by-step explanation:
3 120/10
Can anyone help me with this :)
Answer:
its b
Step-by-step explanation:
Terry had $6.20. He then paid for his lunch with 3 quarters, 6 dimes and 9 nickels. How much money does he have now?
Can I get some help with 26 please?
Answer:
C.
Step-by-step explanation:
easiest way to find is to look at "X value", and sub. 2 then the "Y value" and add 3
hope this helps :)
Hey guys I need help wit this plz! Plz write down the whole detail of your answer plz!! 20 points or more...
Math problem: You are enlarging a photo on your computer screen. The photo starts at 3 centimeters wide. Each time you enlarge the photo, its width is doubled. You enlarge the photo four times. What is the final width of the photo on your screen?
Answer:
48 centimetres wide
Step-by-step explanation:
you are at 3
you enlarge it and you get 6
second enlargement you get 12
third enlargement you get 24
fourth enlargement you get 48
if you times 3 by 4 you are not doubling the width each time you enlarge the photo
so it is easier to double it each time you enlarge it
The smallest whole number by which 9408 must be divided to get perfect square number
Answer:
9408,Is the only number that can divide into the same number to get exactly down to 1.
Step-by-step explanation:
I will mark as BRAINLIEST
Answer:
the answer will be k^3
Step-by-step explanation:
5. A race course is 99 meters long. There are trees
along 38 meters of the course. How long is the part
of the course without trees?
unit
Answer:
61
Step-by-step explanation:
99 minus 38
Answer:
61 meters
Step-by-step explanation:
To find this answer, you need to subtract the length with trees from the total length of the course. With this information, you get an equation that looks something like x + 38 = 99, with x being the length of the course without trees.
Subtract 38 from both sides:
x + 38 = 99
- 38 - 38
x = 99 - 38
Simplify:
x = 61
what is the distance between the y intercept of the function f(x)=3(2)^x and the y intercept of the function g(x) represented by the table below
A: 2 units
B: 3 units
C: 8 units
D: 9 units
The distance between the y-intercept of the function f(x)=3(2)ˣ and the y-intercept of the function g(x) for this case is given by: Option C: 8 units
What is y-intercept of a function?The intersection of the graph of the function with the y-axis gives y-intercept of that function. The y-intercept is the value of y on the y-axis at which the considered function intersects it.
Assume that we've got: y = f(x)
At y-axis, we've got x = 0, so putting it will give us the y-intercept.
Thus, y-intercept of y = f(x) is y = f(0)
What is the equation of a line passing through two given points in 2 dimensional plane?Suppose the given points are [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex], then the equation of the straight line joining both two points is given by
[tex](y - y_1) = \dfrac{y_2 - y_1}{x_2 - x_1} (x -x_1)[/tex]
We're given that:
[tex]f(x) = 3(2)^x[/tex]
Its y-intercept is:
[tex]y = f(0) = 3(2)^0 = 3\times 1 = 3[/tex]
Assuming y = g(x) is a linear function, from the first two points [tex](x_1, y_1) = (-5,15)[/tex] and [tex](x_2, y_2) = (-2, 3)[/tex], we get:
[tex](y - 15) = \dfrac{3 - 15}{-2 - (-5)} (x -(-5))\\\\y -15 = -\dfrac{12}{3} (x+5)\\\\y-15 = -4x - 20\\y = -4x - 5[/tex]
Checking if really y = g(x) is linear or not by evaluating it on its rest of the points:
[tex]y = g(2) = -4(2) -5 =-8-5 = -13\\\\y = g(5) = -4(5) -5 = -25[/tex]
These outputs matches with the table output, so we can take:
[tex]g(x) = -4x -5[/tex]
Its y-intercept is:
[tex]y = g(0) = -4(0) -5 = -5[/tex]
The distance between 3 and -5 on the y-axis is the absolute difference between these values of y, evaluated as:
[tex]d = |3 - (-5)| = |8| = 8[/tex] units.
Thus, the distance between the y-intercept of the function f(x)=3(2)ˣ and the y-intercept of the function g(x) for this case is given by: Option C: 8 units.
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Select ALL the correct answers.
Consider the following graph of function f.
Which transformations will change function f into function g given below.
Answer:
2nd and 6th options
Step-by-step explanation:
y = |x+4| - 4 has a vertex of (-4, -4), and the vertex of the given graph is (3, 1). The shift between the first and second points given is 7 units to the left (6) and 5 units down (2)
The transformation that will change from f to g will be
the verical shift down 5 unitsthe horizontal shift left 7 unitsWhat is corner of a function?Corner point of a function is the point where continuous function will not be differentiable.
here the function in the graph has the corner point at (3,1).
so now we have to transform the function f to function g where
g(x)= |x+4|-4
in the function g(x) the corner point will be the point where the value changes sudddenly.
so the corner point will be x+4=0
⇒x=-4
at x=-4, the value of the g(x)=|-4+4|-4=-4
so the corner point of function g will be (-4,-4).
Now the corner point of function f is (3,1).
Therefore to trnsform function f to g we have to first displace (3,1) to (-4,-4).
in x direction the displacement will be = -4-3 =-7 i.e. horizontal shift left 7 units
in y direction the displacement will be =-4-1=-5 i.e. verical shift down 5 units
Therefore the transformation that will change from f to g will be
the verical shift down 5 unitsthe horizontal shift left 7 unitsLearn more about corner point
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Please answer CORRECTLY !!!!!!!!! Will mark brainliest !!!!!!!!!!
In a school, the ratio of the number of boys to the number of girls in a school is 7 : 5 - if there are 600 students in the school, how many girls are there?
How many students does each unit represent?
Answer:
350 girls.
5 unit represents 250 girls and the 7 unit represents 350 boys
Step-by-step explanation:
Add 5+7 =12
600÷12=50
RATIO OF BOYS TO GIRLS IS 7:5 SO
50x5=250 GIRLS.
7*50=350
so 5 unit represents 250 girls and the 7 unit represents 350 boys.
Answer:7
Step-by-step explanation:
Pleaseee helppppp!!!
A rectangular prism has a length of 3 m, a width of 4 m, and a height of 2 m.
Which expressions can be used to find the volume of the prism?
Select each correct answer
3.4.2
2( 3 / +44)
(15.2)
153.2
Answer:
The first one and the last
Step-by-step explanation:
Answer:
3[tex]\frac{1}{2}[/tex] . 4[tex]\frac{1}{2}[/tex] . 215[tex]\frac{3}{4}[/tex] . 2Step-by-step explanation:-)
Volume of a Rectangular prism :
Volume=Width×Height×Length
Volume= 3[tex]\frac{1}{2}[/tex] × 4[tex]\frac{1}{2}[/tex] × 2
Need help with this question thank you
I'm pretty sure it's A and D
PLSS HELP ASAP! WILL MARK BRAINLIEST
2x-5/8 + x = 2x+5/2 + 4
collect the like terms
2x + x -2x = 5/2+4 +5/8
X = 57/8
A point lies on the line y = 3x - 2
Its x-coordinate is 4
Write down the coordinates of this point.
Answer:
(4, 10)
Step-by-step explanation:
It gives the x coordinate of 4. The y coordinate is found when you plug the x value into the equation. This makes it y = 3(4) - 2. This equals y = 10. So the y coordinate is 10
Answer:
the coordinates are (4,10)
Step-by-step explanation:
y = 3(4) - 2
y = 10
x = 4
The diagram shows a circle inside a square.
a
16 cm
Work out the area of the circle.
Answer 234
hope helped
What is the area of this shape?
Answer:
272 ft^2
Step-by-step explanation:
The lower rectangle is 10 ft by (12+8) or 20 ft
The area is
A = l*w = 10 *20 = 200 ft^2
The upper rectangle is 8 ft by (19 -10) or 9 ft
A = l*w = 8* 9 = 72 ft^2
The total area is 200 + 72 = 272
what is the solution of...
What is the value of y?
Answer:
65 degrees
Step-by-step explanation:
First, solve for the unknown angle( not the y's).
the angle 130 is supplementary to that angle so we will use an equation to solve it. (supplementary means it adds up to 180 degrees)
x+130=180
-130 -130
x = 50 so, 50 is the measure of the interior angle
Now we have to use another equation to solve for y:
50+2y=180
-50 -50
2y = 130
/2 /2
y = 65
Thus, y is 65
So the right answer is 65 degree
Look at the attached picture
Hope it will help you
Good luck on your assignment
There are 20 cars competing in a race. In how many ways can the cars be awarded first, second, and third place?
826,880
6,840
1140
51,680
Please help me!
Answer:
6,840
Step-by-step explanation:
The total number of possible ways in which the position can be awarded are 1140.
What is the formula to expand the combination function f(n, r) = C(n, r)?We can write the combination expansion formula as -
f(n, r) = C(n, r) = n!/(n - r)!r!
Given is that there are 20 cars competing in a race. We have to find in how many possible ways can the cars be awarded first, second, and third place.
Total number of cars = {n} = 20
Total number of positions = {r} = 3
Total number of ways in which the position can be awarded -
C(20, 3) = 20!/(20 - 3)!3!
C(20, 3) = 20!/17!3!
C(20, 3) = (20 x 19 x 18 x 17!)/(17! x 3 x 2)
C(20, 3) = (20 x 19 x 18)/6
C(20, 3) = 20 x 19 x 3
C(20, 3) = 1140
Therefore, the total number of possible ways in which the position can be awarded are 1140.
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Arithmetic or geometric
1/3, 2/3 ,1 4/3
Please help
Answer:
arithmetic
Step-by-step explanation:
Geometry is shapes ...
Which function has a negative discriminant value?
Answer:
Step-by-step explanation:
e
Answer:
the third one
Step-by-step explanation:
t and connect the points A (-4, -3), B (4, -3), C (4, -7), D (-4, -7), and find the length of AB.
A.
7 units
B.
8 units
C.
10 units
D.
6 units
Answer:
8 units
(would really appreciate the brainliest)
Step-by-step explanation:
A lies on the same heightas B, wich makes it easy because you can ignore the y-Information (the second information in each bracket is the same).
so their distance is just the length of the line from -4 to 4
Answer:
8 units
Step-by-step explanation: