Answer:
How do you find a quadratic regression from points?
Image result for using quadratic regression what parabola uses the points (4,80), (-3,-11), (-1,-15)?
Quadratic regression is the process of determining the equation of a parabola that best fits a set of data. This set of data is a given set of graph points that make up the shape of a parabola. The equation of the parabola is y = ax2 + bx + c, where a can never equal zero
Step-by-step explanation:
There is a bag with only milk and dark chocolates.
The probability of randomly choosing a dark chocolate is
7/12
There are 35 dark chocolates in the bag and each is equally likely to be chosen.
Work out how many milk chocolates there must be.
Answer:
25
Step-by-step explanation:
[tex] \frac{7}{5} = \frac{35}{x} [/tex]
cross multiply
[tex]7x = 175[/tex]
Divide
[tex]175 \div 7 = 25[/tex]
Find the value of x.
Answer:
x = 13
Step-by-step explanation:
Sum or interior angles of a triangle is 180,
6x + 19 + 5x - 15 + 3x - 6 = 180
6x + 5x + 3x + 19 - 15 - 6 = 180
14x + 19 - 21 = 180
14x - 2 = 180
14x = 180 + 2
14x = 182
x = 182 / 14
x = 13
ALRIGHTY, HELP AGAIN! YOU'LL GET BRAINLIEST IF YOU'RE RIGHT! HERE'S THE PICTURE!
Answer:
B. (2, -6)
Sorry if you don't need this anymore...
Unit Rate
Mr. Park paid $79.00 for 5 shirts.
What was the cost of each shirt in
dollars and cents?
Answer:
$15.80
Step-by-step explanation:
Given:
5 shirts for $79
Work:
79/5 = 15.80
solve 4 with exponent -4 without the exponent in other words
4 exponent -4 without exponent
Answer:
[tex] \frac{4}{1} \times \frac{4}{1} \times \frac{4}{1} \times \frac{4}{1} = \frac{256}{1} = - 256[/tex]
Step-by-step explanation:
I dont know if I'm right or not
but this is how I learned it
solve for f(5). f(x)=x^2-2x
Answer:
Exact form:
x = √2, −√ 2
Demi cal form:
x=1.41421356…, −1.41421356…
solve this equation 15+8x=31
A car is 150 inches long. A truck is 60% longer than the car.
How long is the truck?
Answer: Therefore, the truck is 240 inches long.
Step-by-step explanation:
truck = 150 + 60% of 150
= 150 + 60/100 * 150
= 150+90
= 240 inches
Suzie looked at the diagram at right and wrote 134%=134/200. Is she correct?
Answer:
no.
Step-by-step explanation:
134% is 134/100, or 1.34
Find the values of p and q such that 4x-5-x^2=q-(x+p)^2
Answer:
p = - 2 , q = - 1
Step-by-step explanation:
Rearrange the left side into standard form
- x² + 4x - 5
Factor out - 1 from - x² + 4x
= - (x² - 4x) - 5
Using the method of completing the square
add/subtract ( half the coefficient of the x- term)² tp x² - 4x
= - (x² + 2(- 2)x + 4 - 4) - 5
= - (x - 2)² - (- 4) - 5
= - (x - 2)² + 4 - 5
= - 1 - (x - 2)²
Comparing to q - (x + p)²
with p = - 2 and q = - 1
HELP DUE IN 10 MINUTES!!!
Two Step Equations Word Problems
Last month, Margo bought a tree that grows 2.5 cm each day. It was 5 cm tall when she bought it and now it is 65 cm tall.
1. Write an equation to determine the number of days (d) Margo has owned the plant.
2. Find the number of days Margo has owned the plant.
Answer:
1 - 2.5cm × 24cm = 60cm + 5cm = 65cm
2 - 24 Days
HELP!
Choose all that give the correct expression for the quantity described.
The difference of nine times a number x and the quotient of that number and 5.
9x − x over 5
Eight more than the quotient of twelve and a number n.
n over 12 + 8
The product of a number and the quantity ’six minus the number’ plus the quotient of eight and the number.
x(6 − x) + 8 over x
Sum of three consecutive even integers.2x + (2x + 2) + (2x + 4)
Answer:
did u ever get on answer cause I'm stuck in this too
Step-by-step explanation:
Helpppppppppp meeeeeeeeee
Answer:
Step-by-step explanation:
Which graph represents the equation y=3/4x−3 ?
Answer:
the first one
Step-by-step explanation:
please give me brainless
what is the midpoint of 0.2 and 0.3
Answer:
0.25
Step-by-step explanation:
Half of a tenth in 5 hundredths.
To find the midpoint of 0.2 and 0.3, think of it as 20 and 30.
What would be the midpoint of 20 and 30? 25.
Therefore, 0.25 would be the midpoint of 0.2 and 0.3
-kiniwih426
+5 when
2. What is the value of f(x)=2x +
X=4?
A А.
2
el ind
B 7
C 9
D 13
Answer:
B. 7
Step-by-step explanation:
[tex] \frac{1}{2} \times 4 + 5 = 7 \\ sub \: in \: 4 \: into \: the \: equation[/tex]
Need help ASAP! Directions in picture;)
Answer:
it is 8
Step-by-step explanation:
The equations -6x + 3y = 6 and x² + y = 10 intersect at the
coordinates (a, b) and (c,d).
(Hint: (a, b) is in Quadrant III)
What is the value of a?
What is the value of b?
What is the value of c?
What is the value of d?
The values of the letters in coordinates (a, b) and (c,d) are;
a = -4
b = -6
c = 2
d = 6
We are given two equations;
-6x + 3y = 6 ---(eq 1)
x² + y = 10 ---(eq 2)
We are told that they intersect at coordinates; (a, b) and (c, d).Let us make y the subject in eq 2 to get;
y = 10 - x² --(eq 3)
Let us put 10 - x² into eq 1 to get;-6x + 3(10 - x²) = 6
expanding further gives;
-6x + 30 - 3x² = 6
rearranging gives;
3x² + 6x - 24 = 0
Using online quadratic equation solver, we have;
x = -4 and x = 2
Putting x = -4 into eq 3 gives;
y = 10 - (-4)²
y = 10 - 16
y = -6
Putting x = 2 into eq 3 gives;
y = 10 - (2)²
y = 10 - 4
y = 6
Thus, the coordinates are; (-4, -6) and (2, 6)Comparing with (a, b) and (c,d), we have;
a = -4
b = -6
c = 2
d = 6
Read more at; https://brainly.com/question/15165519
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13
14
15
16
у
11
6 1-4
What is the slope
Answer:
6
Step-by-step explanation:
Hope this helps
Can someone help me do this
1x+3 = 5x+2 what is the value of x?
Answer:
x = 1/4
Step-by-step explanation:
1x+3 = 5x+2
1 = 4x
x = 1/4
Answer:
x= [tex]\frac{1}{4}[/tex]
---------------------------------------------------------------------------------------------------------------
Check:
1x[tex]\frac{1}{4}[/tex]+3 = 5x[tex]\frac{1}{4}[/tex]+2
0.25+3=1.25+2
3.25=3.25
This is true so X=[tex]\frac{1}{4}[/tex]
---------------------------------------------------------------------------------------------------------------
If this helped pls give me brainliest
What is 4+3x6x(4+3³)² please show work tysm
Answer: 17298^2+4
Step-by-step explanation:
A long tunnel has the shape of a rectangular prism. It is about 100 cm high, 10 m wide and 1 km long. What is the volume of the tunnel expressed as an exponent?
A. 10^4 m3
B. 1000 cm3
C. 1 km3
D. 10^3 m3
PLEASE I NEED HELP ON THESE 3 QUESTIONS
(ILL GIVE BRAINLIEST TO THE BEST ANSWER TOO)
In Earth's southern hemisphere, the summer season is from December to March and winter is from June to September. The table shows the highest temperatures recorded at the South Pole for three different months.
Graph model:
South Pole Temperatures
Month Highest temperature (°F)
January 6
June –24
November –2
Each month's highest recorded temperature is plotted on the number line.
Which of these months had the lowest high temperature? (ignore this)
1. Write the three temperatures in order from least to greatest. Explain how you put the numbers in order.
2. Which month had the lowest high temperature?
3. Which month had the highest temperature?
Answer:
1: (-24, -2, 6) 2: June 3:January
Step-by-step explanation:
1: the closer the negatives get to 0 backwards, the higher the temperature is, and after 0 would be even higher.
2: -24 is the most far back from the other two
3: 2 of them are negatives and the other is positive so the positive number would be the highest temp
Answer:
1. -24,-2,6
We order this way as the value of an integer decreases when we go lower below 0
2. The lowest High temperature is in June when the temperature is -24
3. January has the highest temperature because the highest temperature was above 0 which was 6
Hope this helps!
ez points
I want this to have the most likes all you have to do is: what does 2+2=
I want the right answer we have been trying to find this out for years at WHYYYYYYYYYY Inc so does it equal 4 or something else
WHYYYYYYYYYY am I doing this I have no idea
Hello!
Answer:
4
Step-by-step explanation:
2+2=4
Hope this helps!
What is 2000-345. will mark brainliest
Answer:
The Answer is 1655.
Thanks
Pls Help
A sporting goods manufacturer requires 5/6 yd of fabric to make a pair of soccer shorts. How many shorts can be made from 35 yds of fabric?
Answer:
[tex]42[/tex]
Step-by-step explanation:
Another way to look at this question is: We make 5/6 yards of fabric from each pair of shorts. How many shorts do we need to make 35 yards of fabric.
So, we need to solve this equation for [tex]x[/tex]: [tex]x*5/6=35[/tex].
We can multiply both sides of the equation by [tex]6[/tex] to get [tex]x*5=210[/tex].
We then divide by [tex]5[/tex] on both sides to get [tex]x=42[/tex].
So, we can make [tex]\boxed{42}[/tex] pairs of soccer shorts.
Help me solve this ASAP please
Solve this. If you solve correctly I'll give you the brainlist thingy.
Answer:
It should be 80 sorry if I am wrong I have not done this since 5 grade
Step-by-step explanation:
this is the last qestion help plz
Answer:
$513.75
Step-by-step explanation:
Let h represent the number of hours he worked in a week
An auto mechanic earns $498.75 in 35 hours during the week. His pay is $2.50 more per hour on weekends.
Hence, his pay Is represented by equation:
$498.75 + $2.50 × x
If he works 6 hours on the weekend in addition to the 35 hours during the week
$498.75 + $2.50 × 6
= $498.75 + $15
= $513.75
Therefore, he earns $513.75
