All we need to do is substitute and solve:
f(-5) = 5(-5) + 40
f(-5) = -25 + 40
f(-5) = 15
Best of Luck!
Let f(x) = 3x² - x, find f(-3) *
Answer:
30
Step-by-step explanation:
if f(x)=3x^2 - x then,
f(-3)=3*-3^2 -(-3)
=3*9 +3
=27+3
=30
So, The value of f(-3) is 30
Hope Thiswill be helpful for you.
I dont understand hot to find g(3)
The answer to this equation is 4. This is because since the function is g(3), you plug in x with 3. 3*3 = 9. 9+7 = 16. The square root of 16 is equal to 4, so that is your answer.
Triangle MNO is a right triangle with one leg = 15ft and the other leg = 18ft. Calculate the
length of the hypotenuse to the nearest hundredth of a foot (2 decimal places)
Answer:
Length of the hypotenuse = 23.43ft
Step-by-step explanation:
First leg = 15ft
Second leg = 18ft
Length of the hypotenuse = ?
In a right angle triangle,
Hypotenuse^2 = opposite^2 + Adjacent^2
Let first leg and second leg of the triangle be opposite and adjacent respectively
Hypotenuse^2 = opposite^2 + Adjacent^2
= 15^2 + 18^2
= 225 + 324
= 549
Hypotenuse^2 = 549
Find the square root of both sides
√Hypotenuse^2 = 549
Hypotenuse = 23.43ft to the nearest of a hundredth
Length of the hypotenuse = 23.43ft
describe a real-world situation using opposites
Answer:
The real world using opposite would be like calling it perfect or or saying that it is normal now days. Hope this helps!
In the diagram AB Is the perpendicular bisector of PH. Help
Answer:
1,2 and 5 are your right answers! Please vote Brainliest!
Step-by-step explanation:
The perimeter of a playing field for a certain sport is 334ft. The field is a rectangle, and the length is 47 ft longer than the width. Find the dimensions.
Answer:
The dimensions of the rectangle = 60ft by 107ft
Where 60 ft = Width of the playing field
107ft = Length of the playing field
Step-by-step explanation:
A playing field is Rectangular is shape, hence,
The formula for Perimeter of a rectangle = 2(L + W)
P = 334 ft
L = 47 + W
W = W
Hence we input these values in the formula and we have:
334 = 2(47 + W + W)
334 = 2(47 + 2W)
334 = 94 + 4W
334 - 94 = 4W
240 = 4W
W = 240/4
W = 60
There fore, the width of this playing field = 60 ft
The length of this rectangle is calculated as:
47 + W
47 + 60
= 107 ft
The length of this playing field = 107ft
Therefore the dimensions of the rectangle = 60ft by 107ft
-3, -2,-1, 0, 1, 2, 3, are called_______
Answer: Integers
Step-by-step explanation: To help introduce the set
of integers, let's use the number line shown below.
Notice that on a number line, 0 is in the middle, all numbers to the
left of 0 are negative, and all numbers to the right of 0 are positive.
The set of integers includes the set of whole numbers, {0, 1, 2, 3, ...},
which appear at 0 and to the right of 0 on the number line.
The set of integers also includes {-1, -2, -3, ...} which
appear to the left of 0 on the number line.
So the ste of integers can be written as {...-3, -2, -1, 0, 1, 2, 3...}.
Answer:
Integers
Step-by-step explanation:
a positive (+) or negative (-) number with no fractional parts. zero (0) Is also an integer
Examples: -3, 3
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). There are two production methods it could use. With one method, the one-time fixed costs will total $82,910, and the variable costs will be $10.75 per book. With the other method, the one-time fixed costs will total $22,110 , and the variable costs will be $23.25 per book. For how many books produced will the costs from the two methods be the same?
Answer:
When 4864 books are sold
Step-by-step explanation:
Create an equation where x is the number of books produced:
The first method will be represented by 10.75x + 82,910
The second method will be represented by 23.25x + 22,110
Set these equal to each other and solve for x:
10.75x + 82,910 = 23.25x + 22,110
82,910 = 12.5x + 22,110
60,800 = 12.5x
4864 = x
So, the costs will be the same for both methods when 4864 books are sold
POSSIBLE POIN The value of the expression is (Do without a calculator. Leave your answer as a reduced improper fraction and use "" as your fraction bar.)
Pat and Julie share some money in the ratio 2 : 5 Julie gets $45 more than
Pat. How much money did Pat get? (SHOW WORKING)
plsssss helppp
Answer:
Pat receives $18.
Step-by-step explanation:
Pats get 18 dollars because he only gets 40 percent of what Julie gets and 40% of 45 is 18.
Which of the following is a rational number? 79, 80, 81, 82
1-8 Homework Exercises Course 2 Mathematics Common Core
What is the image of (–9,-5) after a dilation by a scale factor of 5 centered
at the origin?
Answer: (-45,-25)
Step-by-step explanation:
Multiply each coordinates value by the scale factor to find the new point.
-9 * 5 = -45
-5 * 5 = -25
(-45,-25)
21-m=9 anyone know this ?
Answer:
m=12
Step-by-step explanation:
21-m=9
-m=9-21
-m=-12
m=12
Answer:
12
Step-by-step explanation:
21-m=9
21-9=12
m=12
A line passes through the point (4,–2) and is perpendicular to the line with the equation y = 2∕3x + 4. What's the equation of the line? Question 1 options: A) y = –3∕2x – 4 B) y = 2∕3x + 3 C) y = 3∕2x – 8 D) y = –3∕2x + 4
Answer:
Step-by-step explanation:
perp. -3/2
y + 2 = -3/2(x - 4)
y + 2 = -3/2x + 6
y = -3/2x + 4
answer is D
Given: {(−2, 3), (−1, 2), (0, 2), (−2, 9)}. Is this relation a function? Explain.
Answer:
No
Step-by-step explanation:
(-1,2) and (0,2) have the same y value. Functions cannot share the same y value
The relationships represents by {(−2, 3), (−1, 2), (0, 2), (−2, 9)} is not function.
Given that, {(−2, 3), (−1, 2), (0, 2), (−2, 9)}. Is this relation a function is to be specified.
Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
Here,
In the relation {(−2, 3), (−1, 2), (0, 2), (−2, 9)}
(−2, 3), (−2, 9) are two pairs that show two images of one pre-image that why it is not a function.
Thus, the relationships represents by {(−2, 3), (−1, 2), (0, 2), (−2, 9)} is not function.
Learn more about function here:
brainly.com/question/21145944
#SPJ2
HELPPP!!
SIMPLIFY!!!
5x²-7y+3x²-8y
Answer:
8
x
2
−
15
y
Step-by-step explanation:
Hope that helps
What is the simplified expression for the expression below? –1(2x + 3) – 2(x – 1)
Answer:
-4x - 1.
Step-by-step explanation:
-1(2x + 3) - 2(x - 1)
= -2x - 3 - 2x + 2
= -4x - 1.
Answer:
-4x -1
Step-by-step explanation:
-2x -3 -2x + 2
What is the value of x in the equation −x = 3 − 4x + 15?
Answer:
x = 6
Step-by-step explanation:
First of all you should collect like terms
-x = 18 - 4x
Then you should move the variable to the left
-x + 4x = 18
After that you should collect like terms
3x = 18
Finally divide both sides by 3
x = 6
Hope this helps!
Answer:
6
Step-by-step explanation:
3 is multipled by the cube of a number.
Answer:
Cube of a number is three times of the same number. Cube of any mathematical expression is represented by the superscript 3. For example a 3 of the number is a x a x a. It can also be told as the number multiplied by its square. a 3 = a x a 2 can you please help me
Step-by-step explanation:
if
a+1/a=4-root15 find a^2 +1/a^2
62 is the correct answer of this question
Tina learns 2 new appetizer recipes during each week of culinary school. After 19 weeks of culinary school, how many total appetizer recipes will Tina know?
Answer:
38 recipes
Step-by-step explanation:
1 week=2 recipes
19 week=19×2 recipes
=38 recipes
Plz,marks me as a brainest ok.
At what value(s) of x does f(x) = -x4 + 2x2 have a critical point where the graph changes from decreasing to increasing?
Hope the graph helps!
(3x+4) and (2x−3). What is the perimeter of the park?
Answer: 10x-2
Step-by-step explanation:
I assume this is a rectangular park
Formula for perimeter: 2(l + w)
l= 3x+4
w= 2x-3
--------------------------------------------------------
Use PEMDAS to simplify (basic operation from left to right)
ParenthesesExponentsMultiplication and DivisionAddition and subtraction2(l+w)
=2[(3x+4)+(2x-3)]
=2[3x+4+2x-3]
=2[5x-1]
=10x-2
Help me ill give u a thanks!
Answer:
11. 68.6 mph
12. 5/6 page (0.83)
Step-by-step explanation:
You simply divide them (remember the word "per" means divide).
[tex]\dfrac{120}{1 \frac34} \approx 68.6[/tex]
[tex]\dfrac{8 \frac13}{10} = \frac56[/tex]
What is the range of these wages £140 £525
Answer the following questions about this figure.
PLS HELP ME
Answer:
143
Step-by-step explanation:
First, figure out the measurement of angle 2. Take 180 degrees (the total of the triangle) and subtract 90 (the right angle) and 53 (the given measurement of angle 1). 180-90-53=37
Angle 2 measures 37 degrees. The measurements of angles 2 and 3 need to equal 180 when added together as they form a straight line, so take the total (180) and subtract the value of angle 2 (37). 180-37=143
Angle 3 measures 143 degrees
Can anyone solve this word problem?
Answer:
Mrs. Davis package is 30 ounces
Step-by-step explanation:
x for ounces
mailbox plus=0.25x+5
united package=0.35x+2
since Mrs.Davis noticed that she is going to pay same price then:
0.25x+5=0.35x+2
5-2=0.35x-0.25x
3=0.10x
x=3/0.10
x=30 ounces
Mrs. Davis package is 30 ounces
check:
0.25x+5=0.25(30)+5= 12.5 dollars
o.35(30)+2=12.5 dollars
Last year, Kenia got a 350 on her 6th Grade Math EOG. This year Kenia earned a 399, which was a high enough score to make a Level 4. What was the percent of increase in Kenia's score?
Answer:
14%
Step-by-step explanation:
Last year's score = 350
This year's score = 399
What was the percent of increase in Kenia's score
Percentage increase= (new score - old score) / old score × 100
= (399-350) / 350 × 100
= 49 / 350 × 100
= 0.14 × 100
= 14%
The percent of increase in Kenia's score is 14%
how many centimeters are in 32 metered
Answer:
3,200
Step-by-step explanation:
A meter is equivalent to 100 centimetres, so if you did 32 x 100, you'd get your answer :)