The value of function f(3) is -1
What is a Mapping Diagram?
A mapping diagram is an image of two circles which shows two values corresponding to each other, such that one is the input value to the function and the other is the output value.
Given ordered pairs :
(- 1, 0), (0, 3), (3, - 1), (9, 9)
Domain and range from given ordered pairs.
Domain - means x - axis
Range - means y-axis
Now, take out domain and range like that,
Domain of the function : (-1, 0, 3, 9) [ input values]
Range of the function : (0, 3, -1, 9) [ output values]
Now, we need to determine the value of function f(3).
It means 3 is input value in f(3) so the output value at 3 is,
f(3) = -1
Hence, the value of function f(3) is -1.
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the sum of a number x and 7 is 35
An expression is defined as a set of numbers, variables, and mathematical operations. The value of x that will satisfy the given statement "the sum of a number x and 7 is 35" is 28.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
Given the statement that the sum of a number x and 7 is 35. Therefore, the given statement "the sum of a number x and 7 is 35" in the form of an expression can be written as,
x + 7 = 35
Subtract 7 from both the sides of the equation,
x +7 - 7 = 35 - 7
x = 28
Hence, the value of x that will satisfy the given statement "the sum of a number x and 7 is 35" is 28.
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Samantha made goodie bags for Valentines day. They were filled with choclates and candy.The cost of the chochlate was $2.50 per pound and the cost of the candy was $3.oo per pound. Samantha bought 15 pounds of choclate and candy for a total of 40 dollars. How much did Samantha buy
Answer:
We bought 10 Pounds of Chocolate, and 5 Pounds of Candy.
Step-by-step explanation:
Hey!
==================================================================
Let's make a chart!
Lbs Price Cost
Chocolate | x | 2.50 | 2.50x
Candy | 15-x | 3.00 | 3.00(15-x)
Equation:
2.50x + 3.00(15-x) = 40
--------------------------------------------------------------------------------------------------------------
⇒ 2.50x + 3.00(15-x) = 40
-Distribute 3 over 15-x
⇒ 2.50x + 45 - 3x =40
-Combine Like Terms
⇒ -0.5x + 45 = 40
-Subtract 45 from both sides.
⇒ -0.5x + 45 = 40
-45 -45
--------------------------
⇒ -0.5x = -5
-Divide by -0.5 on both sides
⇒ -0.5x/-0.5 = -5/-0.5
⇒ x = 10
That means we bought 10 Pounds of Chocolate.
---------------------------------------------------------------------------------------------------------------Since Candy was 15-x, we can Substitute 10 as x, and Solve:
⇒ 15 - 10
⇒ 5
That means we bought 5 Pounds of Candy.
--------------------------------------------------------------------------------------------------------------
We bought 10 Pounds of Chocolate, and 5 Pounds of Candy.
==================================================================
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Examine the diagram. A triangle has angles A, 15 degrees, 80 degrees. The exterior angle to angle A is B. What is the sum of the remote interior angles? ° What is the measure of ∠A? m∠A = ° What is the measure of ∠B? m∠B = °
Answer:
m<A = 30degrees
m<B = 70degrees
Step-by-step explanation:
Find the diagram attached
From the diagram;
m<A + 150 = 180
m<A = 180 - 150
m<A = 30degrees
Also since the sum of angles in a triangle is 180degrees, hence;
m<B+m<A + 80 = 180
m<B+30+80 = 180
m<B+110 = 180
m<B = 180 - 110
m<B = 70degrees
Answer:
C 95
A 85
C 95
Step-by-step explanation:I GOT IT RIGHT TRUST ME
hello please help thanks
Answer: transpiration
Step-by-step explanation:
Answer: precipitation
Step-by-step explanation: since that’s when something is fallen from the sky such as rain snow or hail
Torrence wants to remodel apartment . The first thing he is Going to do is replace the floors in the living space and kitchen .
Help fill in the empty boxes
Answer:
Hey mate........
Step-by-step explanation:
This is ur answer.......
A = 6B = 10C = 18D = 33Hope it helps!
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Workout the median of 83,73,76,72,75,86,79,76
Answer:
76
Step-by-step explanation:
Put the numbers in order from least to greatest.
72, 73, 75, 76, 76, 79, 83, 86
Then, cross off each number at each end until you reach the one in the middle. Which, since they are the same, is 76.
19. y = 3x? - 12x
Find the discrimanite of each equation.Then,determine the number of solution
need help with this step by step please and thank you
Answer: y=−9x
x= y/9
Step-by-step explanation:
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Answer:
I think the answer would be 60
Hope it was helpful .
Step-by-step explanation:
400 × 0.15 = 60
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Answer:
A=59 because it is opposite of E
B= 39 because 180-141=39
C=82 because 180-39-59=82
Answer:
Step-by-step explanation:
Bonus: Jenny decides to plant all tomato plants in her garden. When full grown, the plants will need a 2.5 ft by 2.5 ft
space. How many tomato plants can Jenny plant in her garden? It packages of seeds come with 20 seeds and cost $4.00
each, how much will she spend in seeds?
Find the product
Give your answer in simplest form.
3/5x12
find the mean of the data set down below. 7, -3, 6, -2, 8, 7, -4, 5, 3
7. The table shows the cost for ordering a certain number of pieces of chicken.
What is the value of x if the cost is proportional to the number of chicken
pieces ordered?
Pieces of Chicken Ordered
2
3
4
6
Cost
$3.00
$4.50
$6.00
A. $4.00
B. $9.00
C. $1.50
D. $6.67
Write an expression that represents the
perimeter of this picture frame.
Answer:
6x+2
Step-by-step explanation:
The perimeter is all of the sides added together.
We know that in a rectangle, sides that are parallel to each other are the same.
So, to find the expression that represents the perimeter, you have to multiply 2x+1 by 2 and x by 2 and add both of those together.
(2*(2x+1))+(2*(x))
(4x+2)+(2x)
4x+2+2x
6x+2
2x2 – 5xy – 6 + 4x2 – 3xy + 1 – x2y
Answer:
− x 2 y − 8 x y + 6 x 2 −5
Step-by-step explanation:
was i support to simplify? bc that's what i did
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9514 1404 393
Answer:
x ≥ 754 -6my -xStep-by-step explanation:
You have to realize that the absolute value function will change the sign of its argument only if that argument is negative.
108. |x -7| = x -7 . . . . . true for x-7≥0
x ≥ 7 . . . . makes the statement true
__
1a. When m < 9, the value 6m is less than 54, so 6m-54 < 0. That means the absolute value function changes the sign of its argument:
54 -6m . . . . . simplified form for m < 9
__
1b. |y -x| = y -x . . . when y > x, the argument of the absolute value is positive
A carver begins work on the following block of granite. What is the volume of the granite? Be sure to include units.
Answer: volume of rectangular prism is calculated by length x width x height. So 10 x 5 x 20 = 1000 centimeter cubes
Step-by-step explanation:
5. Find the value of x.
B
90°
9
А
Two similar cylinders have heights of 3 cm and 6 cm respectively. If the volume of the smaller cylinder is 30 cm3, find the volume of the larger cylinder.Required to answer. Single line text.
Answer:
the ans is
Step-by-step explanation:
V=πr2h=π·32·6≈169.646
Directions: Solve for x.
1.
Answer:
x = 7
Step-by-step explanation:
28 - 21 = 7
HELP ASAP!!!
What is the surface area of a number cube on which each edge has a length of 11 millimeters? (Hint: On a cube, the length, width, and height have the same measure.)
726 mm2
1331 mm2
242 mm2
132 mm2
Answer:
Its 726 mmSQ
Step-by-step explanation:
the first responce is just doing for points
You are entering a fitness competition at school. Students train for several weeks to win prizes for different competition. 2) Last years winner set a school record by completing 37 sit-ups. You need to find out how many weeks you need to train to beat this record. Part B: Write the inequality and graph the solution. How many weeks will it take you to break the record?
Answer:
first you divide 2by 37 that will be the answer
Select the statement that describes this expression: 8 + fraction 1 over 2 x (6 − 2) − 1. (2 points)
8 more than half the difference of 2 and 1, and then subtract 6
Add 8 to half the difference of 6 and 2, then subtract 1
The sum of 8 and fraction 1 over 2 times 6 plus 2 minus 1
1 less than half of 6 plus the sum o
Answer:
Add 8 to half the difference of 6 and 2, then subtract 1.
Answer: Add 8 to half the difference of 6 and 2, then subtract 1
Step-by-step explanation: 8 + 1/2(6 - 2) - 1
Therefore, the statement that describes this expression from the options given correctly is :
Add 8 to half the difference of 6 and 2, then subtract 1
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What is the probability of scoring more than 3
Answer:
3 what?
Step-by-step explanation:
Read number 5 and help me out plz add an explanation
Answer:
the new values could be 3 and one half and 5 and one half.
Step-by-step explanation:
This is correct because they are asking for a new one. Also, one that has 3 as a difference in between.
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The number line represents 1 unit. What is the distance from 0 to point C on the number line?
A) 5/2 units
B) 4/5 units
C) 3/10 units D) 4/10
Help.........................
Evaluate: (-2)5
10
32
-10
-32
Answer:
-32
Step-by-step explanation:
-2 x -2 x -2 x -2 x -2 = -32
Work out the area of this quarter circle of radius 8 cm.
Give your answer in terms of pie .
Answer:
[tex] 16\pi \: {cm}^{2} [/tex]
Step-by-step explanation:
[tex]A = \frac{90 \degree}{360 \degree} \times \pi ({8})^{2} \\ \\ A = \frac{1}{4} \times \pi \times 64 \\ \\ A = \frac{1}{4} \times 64\pi \\ \\ A =16\pi \: {cm}^{2} [/tex]