Answers
Answer:
Increasing interval
Step-by-step explanation:
Related Questions
Which equation represents a proportional relationship?
y = 5x + 1
y=−5(x+1)
y=
1
5x
y=−x
Answers
Who can answer these?
Answers
Evaluate the function
f (x) = 1/2 x + 3
for f(4).
a.
5
b.
9
c.
11
d.
14
Answers
Answer:
a
Step-by-step explanation:
To evaluate f(4), substitute x = 4 into f(x), that is
f(4) = [tex]\frac{1}{2}[/tex] × 4 + 3 = 2 + 3 = 5
f(x)= 1/2 (4)+3=5
Find f(x) where
f(x) = 3x+2/x
Answers
Answer:
[tex] \huge f ^{-1}(x) = -\frac{ 2}{3 - x} [/tex]Step-by-step explanation:
to understand thisyou need to know about:inverse functionPEMDASgiven:[tex]f(x) = \frac{3x + 2}{x} [/tex]to find:[tex] {f}^{ - 1} (x)[/tex]tips and formulas:inverses of common function
[tex] + < = > - [/tex][tex] \times < = > \div [/tex][tex] \frac{1}{x} < = > \frac{1}{y} [/tex][tex]x ^{n} < = > \sqrt[n]{y} [/tex]let's solve:[tex]step - 1 : define[/tex][tex]f(x) = \frac{3x + 2}{x} [/tex][tex]step - 2 : solve[/tex][tex]substitute \: y \: for \: f(x) \\ y = \frac{3x + 2}{x} [/tex][tex]interchange \: x \: and \: y \: and \: swap \: the \: sides \: of \: the \: equation\\ \frac{3y + 2}{y} = x[/tex][tex]multiply \: both \: sides \: of \: the \: equation \: by \: y \\ \frac{3y + 2}{y} \times y = x \times y \\ 3y + 2 = xy[/tex][tex]move \: the \: constant \: and \: the \: expression \: to \: the \: right \: and \: left \: hand \: sides \: and \: change \: its \: sign \: respectively \\ 3y - xy = - 2[/tex][tex]factor \: out \: y \: from \: the \: expression \\ (3 - x)y = - 2[/tex][tex]divide \: both \: sides \: by \: 3 - x \\ \frac{(3 - x)y}{(3 - x)} = \frac{ - 2}{3 - x} [/tex][tex] y = \frac{ - 2}{3 - x} [/tex][tex] \therefore \: f ^{-1}(x) = -\frac{ 2}{3 - x} [/tex]
Solve the simulataneous equations. 5x-4y=19 x+2y=8
Answers
Answer:
(5, 1.5 )
Step-by-step explanation:
Given the 2 equations
5x - 4y = 19 → (1)
x + 2y = 8 → (2)
Multiplying (2) by 2 and adding to (1) will eliminate the y- term
2x + 4y = 16 → (3)
Add (1) and (3) term by term to eliminate y
7x + 0 = 35
7x = 35 ( divide both sides by 7 )
x = 5
Substitute x = 5 into either of the 2 equations and solve for y
Substituting into (2)
5 + 2y = 8 ( subtract 5 from both sides )
2y = 3 ( divide both sides by 2 )
y = 1.5
solution is (5, 1.5 )
The value of Maggie's car decreased by 10% since last year, when she bought it. If the car is now worth $21,000.00, how much was the car worth when she bought it?
Answers
Answer
$23,333
Step-by-step explanation:
100% - 10% = 90%
90% = 0.90
21000/.90 = $23,333
Can someone pls answer both answers? Thank you so much :3
Answers
Answer:
1.40
2.51
welp that's all
help with rounding off!!please
Answers
Answer:
Step-by-step explanation:
A.0.4821 ( 3 d.p)=0.482
B.0.595 (2 d.p)= 0.60
C.0.0346(3 d.p)=0.03
D.2.94999(1 d.p)=2.9
Mark me as a brainliest
0.60
0.03
2.9
those are the answers
Hey everyone! A little help will be needed/appreciated
Answers
Answer:
2 and 1/4
Step-by-step explanation:
-5 1/4 - (-7 1/2)=
Rewrite as
-5.25 + 7.5 =2.25
Answer:
The answer is 2 1/4 because two negatives make a positive
Step-by-step explanation:
-5 1/4-(-7 1/2) or
-5.25+ 7.5=
2.25
rewrite as a fraction= 2 1/4
Hope this helps!
please please help me
Answers
Answer:
x = 6
Step-by-step explanation:
Segment representing 2x - 1 is the mid segment of the given triangle.
Therefore, by mid segment theorem:
2(2x - 3) = 18
2x - 3 = 18/2
2x - 3 = 9
2x = 9 + 3
2x = 12
x = 12/2
x = 6
Answer:
x = 6
Step-by-step explanation:
D is the mid-point of AB (given)
E is the mid-point of AC (given)
Therefore, by mid-point theorem,
DE = 1/2 BC
=> 2x - 3 = 1/2 × 18
=> 2x - 3 = 9
=> 2x = 12
=> x = 6
Hope it helps :)
Please mark my answer as the brainliest
help, due tonight, asap, will give brainliest
Answers
Answer:
has one solution which is 2
Step-by-step explanation:
The sail on a souvenir boat is similar in shape to the sail on a sailboat. The sail on the sailboat is in the shape of a right triangle with a base of 9 feet and height of 24 feet. The height of the souvenir's sail is 3 inches. What is the base of the souvenir's sail
Answers
Answer:
1 1/8 inches.
Step-by-step explanation:
As the sails are similar, corresponding sides are in the same ratio, so we have the equation
:24/3 = 9/b where b = base of the souvenir boat.
Cross multiply:
24b = 9*3
b = 27/24
= 1 1/8 inches.
Based on the shape of the souvenir and dimensions of boat, the base of the souvenir's sail is 1.125 inches
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
WE need to find the base of the souvenir sail.
Given that sail on the souvenir boat has the same shape as the sail on the sailboat. Which means that; they can be used to find each other's dimensions based on a scale factor.
The height of the sailboat = 24 feet.
The height of the souvenir boat's sail = 3 inches.
The scale is:
= 24 / 3
= 8
Then for every inch on the souvenir boat's sail, the sailboat is 8 feet.
The base of the souvenir boat sail;
= 9 / 8
= 1.125 inches
Hence, Based on the shape of the souvenir and dimensions of boat, the base of the souvenir's sail is 1.125 inches
Learn more about the unitary method, please visit the link given below;
https://brainly.com/question/23423168
#SPJ5
Solve for a.
a + (−5) = 12
Answers
Answer:
a = 17
Step-by-step explanation:
a + (-5) = 12
Open the bracket;
a - 5 = 12
Add 5 to both sides
a - 5 + 5 = 12 + 5
Therefore,
a = 17
Answer:
a=17
Step-by-step explanation:
any number plus a negative number is basically subtracting the absolute value of the negative number. so 12 + 5 = 17
HELPPPPPPPPEEEEEEEEEEEE
Answers
hope it's helpful ❤❤❤
THANK YOU.
Eric spent $21.82, including sales tax, on 2 jerseys and 3 pairs of socks. The jerseys cost $6.75 each and the total sales tax was $1.03. Fill in the table with the correct prices.
Answers
Answer:
each sock is: 2.43
each jersey is: 6.75
Step-by-step explanation:
Total Sock Amount: 7.29
Total Jersey Amount: 13.50
Total Tax Amount: 1.03
Total Cost: 21.82
please help me out thank you.
Answers
Answer:
_____________
please help me on this will give you brainliest!!
Answers
Answer:
9+(c*2)
im pretty sure this is correct, sorry for misreading it at first <3
write an equivalent expression for 4(g-6)-7g. Simplify the expression.
Answers
Answer:
-3g-24
Step-by-step explanation:
4(g-6)-7g
= 4g-24-7g
= -3g-24
Enter the range of values for x:
А
52° 31°
B
12
D
2x - 6
3
Answers
Answer:
it's 9 I just took this assignment
The range of the values of x is 3 < x < 9
What is a Triangle ?A triangle is a polygon with three sides , angles and vertices.
The data is given in the question
The sides of the two triangles are same except , BD and DC.
It is known that the side opposite to the bigger angle is always bigger
therefore BD > DC
12 > 2x- 6
18 > 2x
9 > x
x < 9
and the value of a side is always greater than 0
therefore
2x-6 > 0
2x > 6
x >3
Therefore the range of the values of x is 3 < x < 9
To know more about Triangle
https://brainly.com/question/2773823
#SPJ2
could you help me with the 2 questions plz
Answers
Answer:
2. 64
3. 2
Step-by-step explanation:
A snow blower requires a fuel mixture ratio of 40:1 (gas to oil). Which expression represents this ratio?
Answers
Answer:
A. 40/1
Step-by-step explanation:
A. 40/1
B. 1 X 40
C. 40 X 1
D. 1/40
Ratio of gas to oil = 40 : 1
40 : 1 = 40/1
40 : 1 can also be written as 40/1 or 40 to 1
Suppose 24 is 2% .what is 100%
Answers
Answer: 1200, also known as C.
Step-by-step explanation:
8 = 6 + a/4 a=___help
Answers
Answer:
[tex]8 = 6 + \frac{a}{4} \\ \frac{a}{4 } = 8 - 6 \\ \frac{a}{4} = 2 \\ a = 2 \times 4 \\ a = 8[/tex]
The sum of 3 consecutive integers is 78. What is the integer closest to zero?
Answers
Answer:
25
Step-by-step explanation:
Let n be the first integer.
Then the second integer will be (n + 1).
And the third will be (n + 2).
The sum is 78. Therefore:
[tex]n+(n+1)+(n+2)+78[/tex]
Solve for n. Combine like terms:
[tex]3n+3=78[/tex]
So:
[tex]3n=75[/tex]
Therefore:
[tex]n=25[/tex]
Therefore, the first integer is 25.
So our sequene is 25, 26, and 27.
The integer closest to zero will thus be 25.
So our sequence is 25, 26 and 27 respectively
The integer closest to zero will thus be 25.
What is the Y intercept of y=3-4x?
Answers
Answer:
13
Step-by-step explanation:
10
After Thanksgiving, there were 8 pounds of mashed potatoes left over.
Grandma put the potatoes of equal amounts into 5 containers that could fit in her refrigerator.
How much mashed potatoes were in each container?
pounds
Answers
which of the following expressions is equal to 5-2m?
A) 7-2(m+1)
B) 7-2(m-2)
C) 7-(2m-5)
Answers
The point Q(4, 2) is translated 8 units left and 7 units down. What are the coordinates of
the resulting point,
Answers
Answer:
(-4,-5)
Step-by-step explanation:
Start from the original point and go 8 units to the left and 7 units down and plot the point.
What is the value of the missing angle ?
Answers
Answer:
30
Step-by-step explanation:
? = 180 - 150 = 30
Answer:
30°
Step-by-step explanation:
The line is 180 degrees so all you have to do is subtract 150° from 180°
You should end up with 30°
Whenever you see a straight line (IT HAS TO BE STRAIGHT), it is equal to 180°.
PLS ANSWER
Which pair of ratios does not form a true proportion?
A. 8 : 14 and 20 : 35
B. 6 to 10 and 15 to 25
C. 9 to 4 and 36 to 16
D. 12 : 15 and 30 : 40
Answers
Answer:The answer is 14 and 20:35
Step-by-step explanation: