Answer:
2x^2 + 3x + 16
Step-by-step explanation:
fill it in like this 3 (x + 5) + 2x²- 3x + 4
then solve
Which set of ordered pairs is not a direct variation?
{(2,6), (8,12), (14,18)}
{(6,6), (12,12), (18,18)}
{(3,6), (6,12), (9,18)}
{(2,6), (4,12), (6,18)}
Answer:
The first option is not a direct variation
Step-by-step explanation:
When we talk of a direct variation, as one value increases, the other value increases too
Or as one value decreases, the other value decreases
A direct variation is of the form;
y = kx
k = y/x
where k is the coefficient of variation that must be a constant value all through the set of values
The values we are comparing here are the x and y values
So
let us take a look at the options;
The first option is not a direct variation
For the first option, the rate of increase is not constant;
2/6 = 1/3 , 8/12 = 2/3 , 14/18 = 7/9
for the second;
the ratio is 1 to 1
for the third;
3/6 = 1/2 ; 6/12 = 1/2; 9/18 = 1/2
for the fourth;
2/6 = 1/3, 4/12 = 1/3 , 6/18 = 1/3
****NOTE YOU WOULD GET 40 points if you answer ****
Answer:
25%
Step-by-step explanation:
Best answer gets a brainliest
Match the following items. In the figure below, several reflections are illustrated. Note one line of symmetry is m and one is l. Pay close attention to the line of reflection being indicated by R l and R m.
Answer:
see the photo below
Answer the question above
Answer:
MJ
Step-by-step explanation:
shxjsowibxkaowwkql
if the vertex of a parabola is (0, -4), what is the axis of symmetry?
If the vertex of a parabola is (0, -4). The equation of the axis of symmetry for this parabola is x = 0.
How to convert the given equation to vertex form?We first take out the coefficient of x squared, and then inside the bracket, we try to make a perfect square-like situation.
For parabolas, its axis of symmetry always goes through the vertex of the parabola.
In other words, the axis of symmetry is a vertical line that goes through the x-coordinate of the vertex.
Now, if the vertex of a parabola is (0, -4) which is at x = 0, y = -4.
Thus, the vertical line that goes through the coordinate of the vertex would be x = 0
Thus, the equation of the axis of symmetry for this parabola is x = 0.
Learn more about the vertex form of a quadratic equation here:
https://brainly.com/question/9912128
#SPJ2
CAN SOMEONE PLEASE HELP ME NOW PLEASE HURRY
Answer:
your answer is C
Step-by-step explanation:
took the test
Trechelle is buying a sports coat that has a regular price of $90. This coat is on sale with a 20% discount. She knows she needs to pay 8\%8% sales tax on the discounted price. Trechelle thinks to herself 20\%-8\%=12\%20%−8%=12%. She now believes this means she is really only getting a 12% discount, and 12% of $90 is $10.80. She works out the sports coat will cost her $79.20$. Is Trechelle’s reasoning correct or will the sports coat actually cost a different amount?
Answer:
Trechelle's reasoning is incorrect.
Step-by-step explanation:
the cost is $88.2. hope it helps bye.
x+1/x-1-x-1/x+1=7/12
Given:
The equation is:
[tex]\dfrac{x+1}{x-1}-\dfrac{x-1}{x+1}=\dfrac{7}{12}[/tex]
To find:
The value of x.
Solution:
Formulae used:
[tex](a+b)^2=a^2+2ab+b^2[/tex]
[tex](a-b)^2=a^2-2ab+b^2[/tex]
[tex](a-b)(a+b)=a^2-b^2[/tex]
We have,
[tex]\dfrac{x+1}{x-1}-\dfrac{x-1}{x+1}=\dfrac{7}{12}[/tex]
Taking LCM, we get
[tex]\dfrac{(x+1)^2-(x^2-1)^2}{(x-1)(x+1)}=\dfrac{7}{12}[/tex]
[tex]\dfrac{x^2+2x+1-(x^2-2x+1)}{x^2-1^2}=\dfrac{7}{12}[/tex]
On cross multiplication, we get
[tex]12(x^2+2x+1-x^2+2x-1)=7(x^2-1)[/tex]
[tex]12(4x)=7x^2-7[/tex]
[tex]48x=7x^2-7[/tex]
[tex]0=7x^2-48x-7[/tex]
Splitting the middle term, we get
[tex]7x^2-49x+x-7=0[/tex]
[tex]7x(x-7)+1(x-7)=0[/tex]
[tex](7x+1)(x-7)=0[/tex]
[tex]x=-\dfrac{1}{7},7[/tex]
Therefore, the values of x are [tex]-\dfrac{1}{7}[/tex] and [tex]7[/tex].
A map of the Orchid Hill Neighborhood is shown. The population of Orchid Hill Neighborhood is 360 people. The length of each block is the same and the length of 20 blocks is 1 mile.
The question is incomplete. The complete question is :
A map of the Orchid Hill Neighborhood is shown. The population of Orchid Hill Neighborhood is 360 people. The length of each block is the same and the length of 20 blocks is 1 mile.
a). What is the area in square miles of Orchard Hill?
b). What is the population density of the Orchard Hill Neighborhood, given as a number of people per square mile?
Solution :
It is given that :
The total population of Orchid Hill Neighborhood is = 360
The length of 20 blocks = 1 mile
So, 20 blocks = 1 mile
∴ [tex]$1 \text{ block} = \frac{1}{20} \text{ mile} $[/tex]
= 0.05 mile
So the length of the neighborhood is = 4 x 0.05
= 0.20 mile
The width of the neighborhood is = 3 x 0.05
= 0.15 mile
a). Therefore, the area of the Orchid Hill Neighborhood in square miles is
A = length x width
= 0.20 x 0.15
= 0.03 square miles
b). Population density is defined as the number of people living in an unit area.
i.e. [tex]$\frac{360}{0.03}$[/tex]
= 12,000 people per square mile
There are 95 seats on a train. 76 of the seats are empty. What percentage of the seats on the train are empty?
Answer
80%.............
Step-by-step explanation:
76/90 is .8 which is 80%
Use the distributive property to multiply, combine like terms & find the equations
34(x + 5) - 2(x+5)
Answer:
32+160
Step-by-step explanation:
Tom's property has a shape of a parallelogram with the dimensions of l= x +75 and w= x + 45. If the perimeter is 300 feet, what is the value of x
Answer:
15 feets
Step-by-step explanation:
The perimeter of a parallelogram is given as :
P = 2(l + w)
l and w are the bases :
Substituting the values into the equation :
P = 2(x + 75 + x + 45)
P = 2(2x + 120)
P = 300
Hence ;
300 = 4x + 240
300 - 240 = 4x
60 = 4x
Divide both sides by 4 to isolate x
60 /4 = 4x / 4
15 = x
x = 15 feets
La natalidad hace que la población aumenta o disminuya??
Step-by-step explanation:
la natalidad hace que la poblacion aumente
PLEASE HELP!!!
ITS DUE TODAY
Answer:
8. 7.2
9. 6.7
Step-by-step explanation:
There is a line that includes the point (4, – 10) and has a slope of 8. What is its equation in point-slope form?
Hey guy can you pls help me find the area and pls show your working
*links are not allowed*
Step-by-step explanation and Answer :)
So we can split this shape into a few easier shapes to solve the area!
There are multiple combinations:
rectangle, triangle, and another rectangle
rectangle, trapezium
The second option is faster so lets use that :)
[tex]187m^{2}[/tex]
You should draw a dotted line across the top of the rectangle so now there is a rectangle on the bottom and a trapezium on the top!
[tex]A_{square} = b * h\\A_{square} = 16 * 6\\A_{square} = 96m^{2} \\\\\\A_{trap} = \frac{(a + b)h}{2}\\[/tex]
[tex]A_{trap} = \frac{(10 + 16)7}{2}\\\\A_{trap} = \frac{(182)}{2}\\\\A_{trap} = 91 m^{2}[/tex]
96 + 91 = [tex]187m^{2}[/tex]
Hope this helps!
Please mark as brainliest (Press the crown) :0
It costs $35 to join a gym. The monthly fee is $25. Write and graph an equation in two variables that represents the total cost of a gym membership. Let m represent the number of months and c represent the total cost of the gym membership.
An equation in two variables that represents the total cost of a gym membership is c=
.
Answer:
c= 35+25m
Step-by-step explanation:
The $35 is a one time payment and the 25 dollars is each month!
Hope this helps!
A triangular portion of a baseball field is marked as shown below. To the
nearest tenth, what is the length of the side labeled c?
Answer:
D. 1.6 yd
Step-by-step explanation:
Use the law of sines.
[tex] \dfrac{c}{\sin C} = \dfrac{a}{\sin A} [/tex]
[tex] \dfrac{c}{\sin 28^\circ} = \dfrac{2~yd}{\sin 36^\circ} [/tex]
[tex] c = \dfrac{2~yd \times \sin 28^\circ}{\sin 36^\circ} [/tex]
[tex] c = 1.6~yd [/tex]
how many pickles grow on a tree a year
Answer:
50-65 days
Step-by-step explanation:
50-65 days
Pickling cucumbers should be ready to harvest between 50-65 days from planting and can be picked over the course of a several weeks. Growing pickling cucumber plants is just like growing other types of cucumber. They prefer a soil pH of 5.5, well-drained soil, and lots of nitrogen.
In a survey, 250 people were asked to choose one card out of five cards labeled 1 to 5. The results are shown in the table. Compare the theoretical probability and experimental probability of choosing a card with the number 1.
Cards Chosen Number 1 2 3 4 5
Frequency 40 70 80 20 40
The theoretical probability of choosing a card with the number 1 is nothing%. The experimental probability of choosing a card with the number 1 is nothing%. The theoretical probability is ▼ less than equal to greater than the experimental probability.
Answer:
20%, 16%, greater than
Step-by-step explanation:
1/5*100= 20% 250*20%=50 times 1 is picked up.
Ex. Probability: 40/250*100= 16%
Hopes this makes sense!
Answer: Your welcome!
Step-by-step explanation:
The theoretical probability of choosing a card with the number 1 is 20%. The experimental probability of choosing a card with the number 1 is 16%. The theoretical probability is greater than the experimental probability. This is because the theoretical probability is based on the assumption that each card has an equal chance of being chosen, while the experimental probability is based on the actual results of the survey, which showed that 16% of the people chose a card with the number 1.
A multiple of 18 that is also a square numbers
Round off 631 to the nearest 100
And also round off 8348 to the nearest 100
Answer:
600
8300
Step-by-step explanation:
Answer:
1) 600
2) 8300
Step-by-step explanation:
Okay so rounding is simple
If the place digits before the digit your rounding to is 1-4 then just everything stays the same. If its 5 or above then you round the number up and put everything else into 0s.
2c + -2 = -6
what isthe answer
Identify if the question is
statistical or non statistical.
"Do leopards weigh
more than cheetahs?"
non statistical or statistical
Answer:
statistical!!
Step-by-step explanation:
If the probability of Megan drawing a flat stone from a bag is and she draws 1 stone at a
time and replaces it, how many times would you expect Megan to get a flat stone if she
tries 306 times?
a. 34
b. 45
C. 53
d. 66
The area of a square garage door is 9 square yards. How long is each side of the garage door?
Answer: 2.25
2.25 x 4 = 9, and a square has 4 sides, so 2.25 is your answer ! : )
given g(x)=-x-3, solve for x when g (x) =6
Answer:
x = - 9
Step-by-step explanation:
Given g(x) = - x - 3 and g(x) = 6, then equate, that is
- x - 3 = 6 ( add 3 to both sides )
- x = 9 ( multiply both sides by - 1 )
x = - 9
Answer:
-9
Step-by-step explanation:
g(-6) = -6 - 3
g(-6) = -9
does anybody know the answer?
Answer:
Option B:Step-by-step explanation:
As,
It has shown that line d cuts line b by making 90° so those lines are called perpendicular bisectors
Hence,
Option B is the correct symbol shown for perpendicular bisector of line d to line B.
PLEASE HELP!! GIVING 20 PTS!!
Answer:
1. a translation of (-1,3)
2. a reflection across a line through points (0,4) and (3,4)
how to write 0.00007 in scientific notation
Answer:
As 7.0 is the same as seven, 0.00007 written in scientific notation is seven multiplied by 10 to the power of negative five.
Step-by-step explanation:
Answer:7x10 ^-5
Step-by-step explanation:
