Which function has an inverse that is a function?
I dont understand? Can someone plz help
Answer:
2/5; 1/2; 2/3; 14/10; 2/6
Step-by-step explanation:
When finding equivalent fractions, multiply or divide both the numerator and denominator by the same number.
4/10 = 2/5 because 4÷2=2 and 10÷2=5
The same thing has been done to both the numerator and denominator (in this case they have both been divided by 2)
3. Write an equation for the line that is perpendicular to the given line and that passes through the given point. y = 4x + 1 (12,-6)
a)y = -1/4x + 12
b)y = -1/4x - 3
c)y = -1/4x - 6
d)y= -1/4x + 3
Answer:
D. y = -1/4x + 3
Step-by-step explanation:
If the line is perpendicular, it will have a opposite reciprocal slope.
So, the slope will be -1/4.
Plug in this slope and the given point into y = mx + b, and solve for b:
y = mx + b
-6 = -1/4(12) + b
-6 = -3 + b
-3 = b
Plug in the slope and y intercept into y = mx + b
y = -1/4x - 3
So, the correct answer is D. y = -1/4x + 3
Answer:
D. y = -1/4x + 3
Step-by-step explanation:
Because it is the "Correct Answer"
The road where John jogs on weekends rises 75 feet over horizontal distance of 920 feet. Find the road grade round your answer to the nearest 10th
Answer:
[tex]Grade = 12.3[/tex]
Step-by-step explanation:
Given
[tex]Rise = 75ft[/tex]
[tex]Run = 920ft[/tex]
Required
Determine the road grade
This is calculated as:
[tex]Grade = \frac{Rise}{Run}[/tex]
[tex]Grade = \frac{920ft}{75ft}[/tex]
[tex]Grade = 12.3[/tex] --- approximated
Write and equation of the line that passes through (0,3) and (-5,2.5)
Answer:
Check pdf
Step-by-step explanation:
If Nick's Flemish giant rabbit weighs 12 more pounds than his Holland lop rabbit, how much does his Flemish giant rabbit weigh?
Answer:
[tex]X + 12[/tex] Pounds , where X is the weight of Holland lop Rabbit
Step-by-step explanation:
Let the weight of Holland lop Rabbit [tex]= X[/tex] pounds.
It is given that the weight of the Nick's Flemish giant rabbit is [tex]12[/tex] pounds more than the weight of the Holland lop Rabbit.
Hence, the weight of the Nick's Flemish giant rabbit is
[tex]X + 12[/tex] Pounds
Kaitlan sold 60% of her hockey card collection at the fall market sale. If she sold 240 cards, how many cards were in her collection?
Answer:
400
Step-by-step explanation:
Ok so if 60% of the total is 240 than create an expression:
60% of x=240
Now divide both sides by 3:
20% of x=80
Multiply both sides by 5 ( because 5 times 30 is 100):
100% of x=400
Thats the answer hope this helped! :)
400 cards were in her collection.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
Total hockey cards sold= 240
So, Kaitlan sold 60% of her hockey card
let the total number of Hockey cards be x.
So, 60% of x= 240
60 x /100 = 240
x= 24000/ 60
x= 400
Hence, 400 cards were in her collection.
Learn more about Algebra here:
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Alex has $50,000 to invest in a simple interest account that earns 6.5% annual interest. If Alex wants to withdraw the money after 15 years, how much would she be able to withdraw?
Answer:
$98,750
Step-by-step explanation:
6.5% = 0.065
50,000 x 0.065 = 3250.
3250 x 15 = 48,750
50,000 + 48,750 = $98,750
solve for x in this triangle
Answer:
x = 5.006 (approximate answer)
Step-by-step explanation:
According to the instructions, the two triangles are similar. Thus, we can write and solve an equation of ratios:
2x - 10 39
-------------- = ------------
78 169
x - 5 1
This reduces to ------------ = -----------
1 169
or (after cross-multiplication) 169x - 845 = 1
Solve for x: Add 845 to both sides, which results in 169x = 846
Dividing both sides by 169 results in x = 5.006 (approximate answer)
4) Which is the equation of the line with a slope of 2/1 and a y-intercept at 5? *
Answer:
y = 2x + 5
Step-by-step explanation:
Slope intercept form is y = mx + b
m = slope
b = y - intercept
Substitute and you get: y = 2x + 5
Help! Multiply the following polynomials.
(3x-5)(x-5)
Answer:
25+3x simplified
Step-by-step explanation:
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I need help with Part 2 of this question please include a explanation
What does x equal in this problem
[tex]\\ \rm\longmapsto x+91=180[/tex]
Take 91 to right[tex]\\ \rm\longmapsto x=180-91[/tex]
[tex]\\ \rm\longmapsto x=89[/tex]
For the function f(x)=(x+3) (x+1)^n (x-2)^2, what is the multiplicity of the zero at x = 2?
Group of answer choices:
a.3
b.1
c.n
d.2
Answer:
D.2
Step-by-step explanation:
When graphed, the line touches x=2 twice.
The distance traveled is equal to the rate of speed multiplied by the time traveled. If the distance is measured in feet and the time is measured in minutes, then the rate of speed is expressed in which units?
EASY BRAINLESS...
seventy percent of the fish in an aquarium are salmon. if there are a total of 450 fish in the aquarium, how many salmon are there? how many fish are not salmon
Answer:
There are 315 salmon and 135 fish that aren't salmon.
Step-by-step explanation:
The number of salmon in the aquarium would be 70% of the 450 fish, so to find the number you multiply .7 by 450:
450 × .7 = 315
So, there are 315 salmon. To find how many fish are not salmon, you would subtract 315 from 450:
450 - 315 = 135
So, 135 of the fish are not salmon.
QUESTION 1: simplify 18-24÷8+7
QUESTION 2: simplify 9²-32÷(3+4⁰)
QUESTION 3: simplify 8(5)-(3+2)²
Answer:
1. 22
2.73
3.15
Step-by-step explanation:
Hii this is perpendicular line etc
I need help! ABCD is a rectangle.
m<1 =
m<6 =
m<3 =
Answer:
m∠1 = 24°
m∠3 = 66°
m∠6 = 66°
Step-by-step explanation:
They are all near the corners of the rectangle
The corners always equal 90°
But as you can see, they are split down the middle by the X in the rectangle and we have only one angle to go off of; 24°
Since m∠1 is in the same triangle as that angle, and it looks exactly the same, the angle is exactly the same.
m∠3 and m∠6, if you look closely, are also the same. And as I said before, the corners always are 90°. Since 24° is taken from the neighboring triangle, the amount left is 66°, and remember, 24° + x° HAS to equal EXACTLY 90°. So
90 - 24 = 66
So both m∠3 and m∠6 = 66°
Ev ya chhfff chu BFF go hghggfffbgjv
Answer:
Step-by-step explanation:
what’s the relationship between these two angles?
Answer:
Co- interior angles
Step-by-step explanation:
Together they add up to 180°
So angle 5x= 115°
1. Refer to the figure at the right. Line a is parallel to line b and m2 is 135 °. Find each given angle measure. Justify your answer
m9+m<10
m1
m6
m4+ m5
this means angle
Answer:
∠9 + ∠10 = 135° combined, they are alternate equal to ∠2
∠1 =45° it is supplementary to ∠2
∠6 = 45° it is corresponding congruent to ∠8 which is alternate
equal to ∠1
∠4 + ∠5 = 135° combined, they are corresponding congruent to ∠2
The measure of the angles ∠1, ∠6, ∠4, ∠5, ∠9, and ∠10 will be 45°, 45°, 45°, 90°, 45°, and 90°, respectively.
What is an angle?The inclination is the separation seen between planes or vectors that meet. Degrees are another way to indicate the slope. For a full rotation, the angle is 360 °.
Supplementary angle - Two angles are said to be supplementary angles if their sum is 180 degrees.
Corresponding angle - If two lines are parallel then the third line. The corresponding angles are equal angles.
Vertically opposite angle - When two lines intersect, then their opposite angles are equal.
Complementary angle - Two angles are said to be complementary angles if their sum is 90 degrees.
All the angles are mentioned on the diagram.
The measure of the angles ∠1, ∠6, ∠4, ∠5, ∠9, and ∠10 will be 45°, 45°, 45°, 90°, 45°, and 90°, respectively.
More about the angled link is given below.
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To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present?
Answer:
10
One tank is 25 buckets of water, so 2/5 of a tank is 10 buckets of water.
Answer:
62.5
Step-by-step explanation:
Let the capacity of 1 bucket = x.
Then, the capacity of tank = 25x.
New capacity of bucket = 2x/5
Required number of buckets = 25x / (2x/5)
= 25x * 5/2x
= 125/2 = 62.5
An artist used colored squares to put on the windows that measure 1/4 by 1/4 How many colored squares would fit in that area of the window?
The question is incomplete. The complete question is :
An artist used colored squares to put on the windows that measure 1/4 by 1/4 How many colored squares would fit in that area of the window? The window measures 3 1/2 feet by 2 3/4 feet?
Solution :
It is given that :
The measure of the window is = [tex]$3\frac{1}{2}$[/tex] feet by [tex]$2\frac{3}{4}$[/tex] feet
The measure of the colored square = [tex]$\frac{1}{4}$[/tex] feet by [tex]$\frac{1}{4}$[/tex] feet
So the area of the window is given as :
[tex]$=3\frac{1}{2} \times 2\frac{3}{4}$[/tex]
= 9.625 square feet
Similarly the area of the colored square [tex]$=\frac{1}{4} \times \frac{1}{4}$[/tex]
[tex]$=\frac{1}{16}$[/tex]
= 0.0625 square feet
Therefore, the total number of the colored squares required to fit the window is given by :
[tex]$=\frac{9.625}{0.0625}$[/tex]
= 154 colored squares
ayuda es para ahoritaaa
Answer:
a) 67
b) 122
c) que angulo
d) 40
Step-by-step explanation:
10.
Which points are on the graph of the function rule f(x) = 10 – 4x?
A. (18, –2), (10, 0), (2, 2)
B. (–2, 18), (0, 10), (2, 2)
C. (2, –18), (0, –10), (–2, –2)
D. (–18, 2), (–10, 0), (–2, –2)
Answer:
B. (–2, 18), (0, 10), (2, 2)
Step-by-step explanation:
Find the function by taking the integral of the derivative.
F ( x ) = 10 x − 2 x 2 + C
Given: f(x) = 10 - 4x
Just substitute in each points to see if they satisfy the equation.
Looking (c)
(-2,18) ----> 10 - 4(-2) = 10 + 8 = 18. (-2,18) is satisfied.
(0,10) ----> 10 - 4(0) = 10. (0,10) is satisfied.
(2,2) ----> 10 - 4(2) = 10 - 8 = 2. (2,2) is satisfied.
Therefore, (b) is the solution.
1/9 x (1/2) ^3 please help
Answer:
1/72
Step-by-step explanation:
1/2×1/2×1/2=1/8
1/9 × 1/8 =1/72
if the percent of discount is 64% and the sale price is $72 what is the original price
Answer:
AFSGDZHFjxgASZtrnzxm
Step-by-step explanation:
safDGfhzgj
When animals or humans build things, they choose materials based on their
Answer:
strength, availability, preference, and cost
Step-by-step explanation:
Stability, purpose, texture, appearance, structure, and size.
Herve has 3 licorice sticks. he wants to share them equally with four other friends. which fraction of a licorice sticks should each of the 5 friends get
Answer:
[tex] \boxed{ \tt\frac{3}{5} }[/tex]