Answer:
3
Step-by-step explanation:
First you do 13 + 8
13 + 8 = 21
Then you divide by 3
21 divided by 3 is 7
Finally you subtract 4
7 - 4 = 3
Hope this helps!!
Answer:
3
________________________________________________________
SolveWhen doing problems, remember PEMDAS, the order of operations:
parenthesesexponentsmultiplicationdivisionadditionsubtractionGo by the list from top to bottom, and prioritize the higher-up orders first.
Start with 13 + 8
[tex]13 + 8 = 21[/tex]
Next, divide by 3
[tex]21 / 3 = 7[/tex]
Lastly, subtract by 4
[tex]7 - 4 = 3[/tex]
________________________________________________________
Questions?Ask me in the comments box, please.
two numbers have difference of 6 and a mean of 11. Find the numbers.
Mean is average 11 x 2 = 22
The two cards need to equal 22 when added together.
the difference is 6:
6/2 = 3
11-3 = 8
11+ 3 = 14
14 +8 = 22
the two numbers are 8 and 14
find the value of x in 7x =1
Answer:
[tex]\displaystyle \large{x=\dfrac{1}{7}}[/tex]
Step-by-step explanation:
Given:
[tex]\displaystyle \large{7x=1}[/tex]
Divide both sides by 7:
[tex]\displaystyle \large{\dfrac{7x}{7}=\dfrac{1}{7}}\\\displaystyle \large{x=\dfrac{1}{7}}[/tex]
Therefore, the solution is x = 1/7
Answer:
[tex]x =\frac{1}{7}[/tex]
Step-by-step explanation:
Find the value of x in 7x = 1
[tex]7x = 1 < == divide\ both\ sides\ by\ 7\\\\\frac{7x}{7}=\frac{1}{7}\\\\ x =\frac{1}{7}[/tex]
Hope this helps!
Graph the piecewise function.
Answer: First Option is correct.
Step-by-step explanation:
Since we have given that
\begin{gathered}f(x)=-x+1,x < 0\\\\f(x)=x+1,x\geq 0\end{gathered}
f(x)=−x+1,x<0
f(x)=x+1,x≥0
If we let f(x)=y
then, y=x+1 and y=-x+1
Put x=0,
\begin{gathered}y=0+1\\\\y=1\end{gathered}
y=0+1
y=1
so, there must be coordinate on y -axis at 1.
and it must take Ist and II nd quadrant .
Hence, First Option is correct.
Classify each of the following angles as acute, obtuse, right,straight, or reflex.
Answer:
1. Acute, because it is less than 90 degrees or less than a right angle.
2. that is obtuse because it is bigger than 90 degrees
3. acute, because it is less than 90 degrees.
Answer:
1. Acute 2. Obtuse 3. Acute
Step-by-step explanation:
1 and 3's angles are smaller than 90 degrees. 2 is obtuse because its angle is larger than 90 degrees.
A rectangle with length of 4/9 foot and a width of 2 feet
Answer:
area of rect = 8/9
Step-by-step explanation:
Area of rect.= (L*W)
Area = (4/9) (2)
Area = (4/9) (2/1)
Area = 8/9
Answer:
8/9 feet
Step-by-step explanation:
Area=l*w
4/9ft*2ft
4/9*2/1=8/9ft
solve 650(1+.045) with an exponent of 3
Answer:
741.75798\dots
Step-by-step explanation:
\mathrm{Add\:the\:numbers:}\:1+0.045=1.045
1.045^3=1.141166125
\mathrm{Multiply\:the\:numbers:}\:650\cdot \:1.141166125=741.75798\dots
I need this answered I’ll give brainliest
Answer:
x = 52
Step-by-step explanation:
49° is the vertical angle of the triangle.
-> measure of other angle of triangle = 49°
By exterior angle theorem:
x° + 49° = 101°
-> x° = 101° - 49°
-> x° = 52°
-> x = 52
If 7 4/5 of the total came to 109,200, what is the total?
Find the probability of rolling a 6 -sided dice and getting a number that is a divisor of 20.
Explanation:
On the die, the divisors or factors of 20 are: 1, 2, 4, 5
We have 4 faces we want out of 6 faces total
So 4/6 = 2/3 is the probability of getting a divisor of 20.
The cost of attending an amusement park is $15 for children and $35 for adults on a particular day the attendance at the amusement park is 25,000 attendees and the total money earned by the park is 600,000 use a given matrix equation to solve for the number of children tickets sold
The total number of children tickets sold on the particular day is; 13750.
What is the total number of children tickets sold?It follows from the task content that;
x + y = 25,00015x + 35y = 600,000On this note, it follows that the total number of children and adult tickets sold on that particular day is; x and y respectively.
Upon solving the equation simultaneously, x=13750.
Hence, the total number of children tickets sold is; 13750.
Read more on Simultaneous equations;
https://brainly.com/question/16863577
Answer:
13,750
Step-by-step explanation:
Switch values a and d value a 1 and value d 35 and then after that make values b and c negative so turn value b 1 into -1 and turn value c 15 into -15 and then follow this method a×d-(-b)×(-c) so like this 1×35-(15)(1)= 35-15=20 and thats the determinant so then you do put it on a fraction below 1 so like this 1/20 times the top part of the matrix (35 -1 ) and the bottom part of the matrix (-15 1) so mulitply every value by 0.05 so we end up with the top part of the matrix (1.75 -0.05)
and the bottom part of the matrix (-0.75 0.05) and then we multiply them like this
1.75(25,000) + (-0.05)(600,000)= 43,750 - 30,000= 13,750
-0.75(25,000) + 0.05(600,000) = -18,750 + 30,000= 11,250
so the missing matrix is
(13,750 11,250)
so the number of childrens tickets sold is 13,750
Marco travels from his house to the beach. The total distance he travels
is 120 miles. In the first hour, Marco traveled 54 miles. What percent of
the distance did he travel the first hour?
Answer:
45%
Step-by-step explanation:
Since he drove 54 miles out of 120 in the first hour, the equation for this would be 54/120×100. This equals 45 and that is the percentage
What is the vertex and axis of symmetry?
Check the picture below.
now, the Range and Domain are both assuming the lines goes no further, keeping in mind that most lines go to infinity.
the x-intercepts are just where the graph intersects or touches the x-axis.
the y-intercepts are just where the graph intersects or touches the y-axis.
vertex is simply where it makes the U-turn, and axis of symmetry is simply most of the time the x-coordinate of the vertex, of namely the line where the graph begins making a mirror image.
6. Hadila is 2 years younger than Kai Yee. Kai Yee's father's age is the square of Hadila's age. If Kai Yee is p years old, calculate the total age of the three of them. Express your answer in the form of algebraic expression.
ANSWER: p^2 - 2p + 2
Step-by-step explanation:
Total age of three = p + p-2 + (p-2)^2
= 2p-2 + p^2-4p+4
= p^2 - 2p + 2
pls help and do quick!
Answer:
If 50.24cm = Circumference
Radius = 8cm
If 50.24cm^2 = Area
Radius = 4cm
Step-by-step explanation:
50.24cm what? Circumference? Area?
π = 3.14
2πr = Circumference
50.24 / 2π = r
r = 8
πr^2 = Area
50.24 / π = r^2
r^2 = 16
r = 4
Mrs. Cochran bought 1.5 lb. of ground beef.
How many ounces did she buy?
Answer:
24 oz
Step-by-step explanation:
16 oz to a pound
16 x 1.5 = 24 oz
Answer:
24 ounces
Step-by-step explanation: One pound equal 16 ounce plus a half a pound which is 8 equals 24
help me with this question, please
I think that's it, Hope this helps!!!!!!
Answer:
x = -2
Step-by-step explanation:
4x + 5y = 7
4x + 5 (3x + 9) = 7
4x + 15x + 45 = 7
19x + 45 = 7
19x = -38
x = -2
Find the image of Y(-7,4) after a dilation centered at the origin with a scale factor of -3
F= Y(-21,12)
G=Y(12,-21)
H=Y(21,-12)
J=Y(-12,21)
Answer:
H = Y (21, -12)
Step-by-step explanation:
Given
Y = (-7, 4)Dilation of -3Solving
Multiply the x-value and y-value of the coordinate by -3Y = (-7 x -3, 4 x -3)Y = (21, -12)The required image point is H=Y(21, -12)
What will happened with scale factor ?If the scale factor is given then by multiplying the scale factor with the co-ordinates gives us the image of the given point.
How to find the required image point ?Here the given point is Y(-7, 4)
After the dilation centered at origin, the scale factor is -3
∴ The x co-ordinate is (-7)×(-3)=21
& the y co-ordinate is 4×(-3)= -12
Hence the image is Y(21, -12)
Learn more about scale factor here :
https://brainly.com/question/27351495
#SPJ2
Help me please this is due tomorrow and I do not understand the assignment
Answer:
4 and 5 not functions 6 function
Step-by-step explanation:
In a function, each x value can only have one y value. To test this, you can try the vertical line test. Put a vertical line on the function; if it touches only one point the graph is a function. For graph 4, the x value of 3 has y values of 1 and 4 so it is not a function. For graph 5, the x values of 1 and 5 have many y values so the graph isn't a function. For graph 6, each x value has only one y value so it is a function.
Answer:
4. Not a function
5. Not a function
6. Function
Step-by-step explanation:
1 -3 (correct!)
Functions do NOT have repeating x-values. Hence why you were able to determine if # 1-3 are fuctions or not.
4. Not a fuction:
(1, 2)
(2, 3)
(3, 1)
(3, 4)
As we can see, both points have the same x-values. Therefore, not a function.
5. Using our knowledge about functions, we can quickly tell that this graph is NOT a fuction.
There are many points that fall under the same x-value.
6. Function:
(1, 2)
(2, 2)
(3, 3)
(4, 4)
No repeating x-values. Therefore, a function.
Hope this helps!
The measures of two supplementary angles have a ratio of 4:5. What is the measure of the larger angle?
The measure of the larger angle is ____
Answer:
100 DEGREES
Step-by-step explanation:
Supplementary means they add to 180 degrees
4x + 5x = 180
x = 20
smaller angle 4 (20) = 80
learger angle 5 (200 = 100
find the area of a circke with a radius of 9 mm. round to the nearest tenth. use 3.15 or 22/7 for Pi.
Answer:
254.3 mm^2
Step-by-step explanation:
Area of a circle: A = π*r^2
π (pi) = 3.14
r (radius) = 9 mm
Substitute 3.14 for pi and 9 for radius:
A = π*r^2
A = 3.14*9^2
A = 3.14*81
A = 254.34 mm^2
Round to the nearest tenth:
254.34 ==> 254.3
Therefore, our final answer is 254.3 mm^2
Hope this helps!
Given the objective Function: Revenue = 75x+85y and the critical points: (0,0) (180,120) (300,0)
Answer
(180,120)
Cannot be determined
Step-by-step explanation:
Fax
The critical point with the maximum revenue is at (180,120)
How to determine the critical point with the maximum revenue?The objective function is given as:
Revenue = 75x+85y
The critical points are (0,0) (180,120) (300,0)
Substitute these points in the objective function.
Revenue = 75(0)+ 85(0) = 0
Revenue = 75(180)+ 85(120) = 23700
Revenue = 75(300)+ 85(0) = 22500
The maximum revenue is 23700.
Hence, the maximum revenue is at point (180,120)
Read more about objective function at:
https://brainly.com/question/16826001
Line a is perpinduclar to Line B. If the slope of Line A is 3/7 what is the slope of Line B?
Answer:
slope = - 7/3
Step-by-step explanation:
Slope of a line = m
perpindicular slope = - 1/m
-1 / ( 3/7) = - 7/3
A squared garden has am area of 81 squared meters what is the permiter of this garden
Answer:
9 meters
Step-by-step explanation:
just find the square root of 81 and it gives you the number 9
Find the volume of the figure below.
Answer:
B. 86.625
Step-by-step explanation:
To find the volume of a shape the formula is this, length x width x height. 5.5 x 4.5 x 3.5 = 86.625.
A bag contains 10 yellow cubes, 5 red cubes, and 15 blue cubes. Determine whether the following event is impossible, unlikely, as likely as not, likely, or certain.
A red cube is randomly drawn from the bag.
Answer:
I would say likely.
Step-by-step explanation:
I hope this helps.
DIRECTIONS: Type your answer in the space provided. The slope must be in fraction form.
What is the equation of the line parallel to the given line through the point (14,0)?
-4x - 7y = 14
Malaya and Peyton run a race. Malaya takes 42 seconds to run the race. She is 7 seconds faster than Peyton. How many seconds does Peyton take?
Answer:
35 seconds
Step-by-step explanation:
Subtract 42 from 7
then you'll 35 secs
\frac{x^2+9x+14}{x^2+10x+16}
x
2
+10x+16
x
2
+9x+14
Answer:
(x+7)(x+2)
(x+2)(x+8)
Step-by-step explanation:
PLEASE MARK ME AS BRAINLIST
use the distribute propty to write an expression that is equlavent to 8
Answer:
8(a+4)=8a+32
Step-by-step explanation:
The scale of a model train is 1 inch to 16.48 feet. One of the cars of the model train is $6$ inches long. What is the length, in feet, of the actual train car? Round to the nearest whole number.
Answer:
The scale of a model train is 1 inch to 13.5 feet. One of the cars of the model train is 5 inches long. What is the length, in feet, of the actual train car?
Algebra
Step-by-step explanation: