Answer:
4metres
Step-by-step explanation:
Given the height of the trail modeled by the function h(x) = -0.1x^2 - 0.3x +2.8 , where x is the horizontal distance in kilometers
The horizontal distance occurs at the x intercept i.e at h(x) = 0
Substitute
0 = -0.1x^2 - 0.3x +2.8 ,
Multiply through by -10
0 = x^2 + 3x - 28
x^2 + 3x - 28 = 0
Factorize
x^2 + 7x - 4x - 28 = 0
x(x+7) - 4 (x+7) = 0
(x-4)(x+7) = 0
x-4 = 0 and x+7 = 0
x = 4 and -7
Since the danced cannot be negative, hence the horizontal distance of the trail is 4m
Rewrite the following equation in slope-intercept form.
y + 3 = }(x + 6)
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
Slope-intercept form is
y = mx + b
We want to get the y by itself on one side of the equation.
0 = 18x + 6y – 2
First let's subtract 6y from both sides.
-6y = 18x – 2
Next let's divide both sides by -6.
y = (18 / -6)x - (2 / -6)
y = -3x + 1/3
...The last instructions are kind of confusing to me, but I think that is the answer you're after. :)
Help i don't know what to do I will give brainiest
Answer:
Her starting average was 66
it decreased by 7
her final average was 71
Step-by-step explanation:
i think
Answer:
a. 78
b. decreased by 7 points
c. 83 points
Step-by-step explanation:
HELP ME WITH THIS QUESTION PLS
Answer:
its arab
Step-by-step explanation:
because there the largest ethnic group in the region
Each dance class is hour. It takes a student 7 hours to loarn a dance routine. Which
statement is true?
A student needs to take 10 dance classes to learn the routine
A student needs to take 6 dance classes to learn the routine
A student needs to oko 5 dance classes to learn the routi
A student needs to take 9 dance classes to learn the routine
Answer:
I think it's letter A
Step-by-step explanation:
but I'm not sure ok
Please help I will mark brainliest
The area of the hardscape is 3x^2 + 13x + 4. what is the length and width of the hardscape
Answer:
[tex](3x+1)[/tex]
[tex](x+4)[/tex]
Step-by-step explanation:
Assuming that the given surface is two-dimensional, one can simply factor the given polynomial to find the dimensions of the surface.
[tex]3x^2 + 13x + 4[/tex]
Just by looking at the polynomial, it is fairly obvious that the factors are;
[tex](3x+1)(x+4)[/tex]
One can check this by distributing, multiply every term in one of the parenthesis by every term in the other. Then combine like terms,
[tex]3x^2 + 12x + x + 4\\\\3x^2 + 13x + 4[/tex]
Without further information, it is impossible to determine which is the length, and which is the width, one just knows that the dimensions of the surface are;
[tex](3x+1)\\\\(x+4)[/tex]
PLEASE HELP
What statement best describes the relation ship in the graph below
A. The relationship is a function because of all the y -values are positive
B. The relationship is not a function because the graph does not pass through the point (0,0)
C. The relationship is a function because each x -value has exactly one corresponding y -value
please answer asap I'll mark brainliest
Answer:
$3200
Step-by-step explanation:
First divide 40,000 by 100, which givse you 400
Now multiply the 400 by 8, which mulitplies to 3200.
Answer:
8% as a decimal is .08
simply multiply the 40,000 by .08.
40000 x .08= 3200
Serge was curious if a sample third quartile was an unbiased estimator of a population third quartile. He started with a large normally distributed population of test scores whose third quartile was Q3=80 points. He then took a random sample of 6 tests and calculated the third quartile of the sample. He replaced those tests and repeated this process for a total of 40 trials. His results are summarized in the dot plot below, where each dot represents the third quartile from a sample of 6 tests.
Answer:
Sample third quartile appears to be an unbiased estimator of the population third quartile.
Step-by-step explanation:
khan
24 times *blank* =6
Someone please answer this I need help
Answer:
0.25
Step-by-step explanation:
0.25 x 24 = 6
WILL GIVE BRAINLIEST!
Find two consecutive even integers such that four times the first equals three times the second. (Enter your answers as a comma-separated list.)
Answer:
This is complicated
Step-by-step explanation:
UHM
geometry : A triangle has two sides of length 14 and 2. What is the smallest possible whole-number length for the third side?
can someone please help
instructions: identify the slope and Y- intercept from each equation. make sure that the equation is in slope intercept form. you may leave any functions as simplified improved fractions.
Answer:
ab. y interecept 678
slope -33333
Step-by-step explanation:
MULTIPLE CHOICE
Question 10
Liam wants to treat some friends to lunch. He has $50 and knows that lunch will cost $8 per person. For how many people can Liam buy lunch?
A
Liam can buy lunch for 7 or fewer people, including himself.
B
Liam can buy lunch for 7 or more people, including himself.
C
Liam can buy lunch for 6 or fewer people, including himself.
D
Liam can buy lunch for 6 or more people, including himself.
Answer:
C
Step-by-step explanation:
8 x 6 would equal 48, which results in not having enough money to buy lunch for more people.
Answer:
the answer should be c
Step-by-step explanation:
let's do a equation for this problem.
8x = 50
/8 /8
x = 6.25
x represents the amount of friends. we divide 8 by both sides to isolate x by itself.
since the final result gives us a decimal, we have to round it to the nearest whole number. it's not possible to have a decimal amount of friends. it should be 6. it cannot be 7 if you are wondering because 7 is bigger than 6.25. there's no way there can be 7 friends when there is a limit amount of 6. therefore, the answer is c.
A recipe requires 1/2 cup of milk for each 1/4 cup of water. How many cups of water are needed for each
cup of milk?
Answer:
7
Step-by-step explanation:
7.
Find the slope of the line.
A. [tex]\frac{1}{4}[/tex]
B. –4
C. 4
D. [tex]-\frac{1}{4}[/tex]
Answer: The answer is either letter A or letter C
home / math / slope calculator
Slope Calculator
By definition, the slope or gradient of a line describes its steepness, incline, or grade.
Where
m — slope
θ — angle of incline
If the 2 Points are Known
Result
Slope (m) =
ΔY
ΔX
=
-1
5
= -0.2
θ =
arctan( ΔY ) + 360°
ΔX
= 348.69006752598°
ΔX = 5 – -5 = 10
ΔY = -3 – -1 = -2
Distance (d) = √ΔX2 + ΔY2 = √104 = 10.198039027186
Equation of the line:
y = -0.2x – 2
or
y =
- 1 x
5
– -2
When x=0, y = -2
When y=0, x = -10
...............................................................................................................................................
home / math / slope calculator
Slope Calculator
By definition, the slope or gradient of a line describes its steepness, incline, or grade.
Where
m — slope
θ — angle of incline
If the 2 Points are Known
Result
Slope (m) =
ΔY
ΔX
=
5
-1
= -5
θ =
arctan( ΔY ) + 180°
ΔX
= 101.30993247402°
ΔX = -3 – -1 = -2
ΔY = 5 – -5 = 10
Distance (d) = √ΔX2 + ΔY2 = √104 = 10.198039027186
Equation of the line:
y = -5x – 10
When x=0, y = -10
When y=0, x = -2
...............................................................................................................................................
Input Data :
Point A
(
x
A
,
y
A
)
= (3, 2)
Point B
(
x
B
,
y
B
)
= (7, 10)
Objective :
Find the slope of a line that passes through points A and B.
Formula :
Slope
m
=
y
B
−
y
A
x
B
−
x
A
Solution:
Slope
m
=
10
−
2
7
−
3
=
8
4
m = 2
...............................................................................................................................................
Input Data :
Point A
(
x
A
,
y
A
)
= (3, 2)
Point B
(
x
B
,
y
B
)
= (7, 10)
Objective :
Find the slope of a line that passes through points A and B.
Formula :
Slope
m
=
y
B
−
y
A
x
B
−
x
A
Solution:
Slope
m
=
10
−
2
7
−
3
=
8
4
m = 2
Step-by-step explanation: This is the picture, I graphed it
Center: (0, 0)
Angle: 0 rad
Opacity: 1
Width: 10
Height: 6.8
when given a trinomial with no GCF what is the first step in factoring?
Answer:
Group the first two terms together and then the last two terms together
Step-by-step
may not be right sorry if it isn't
A recipe uses 5 cups of milk to make 30 servings. If the same amount of milk is used for each serving, how many servings can be made from one quart?
Answer:
Three gallons will be enough to make 128 servings.
Step-by-step explanation:
In Three gallons there are 64 cups. if 5 cups makes 10 servings, that is 1/2 cup per serving. So 64 cups will make 128 servings.
I NEED HELP ASP. IT IS SO HARD
Answer:
Company A charges less per square foot
A charges 2.25 per square foot
B charges 2.75 per square foot
Step-by-step explanation:
Divide the cost by the appropriate square feet
3300÷1200=2.75
3850÷1400=2.75
Simply the expression -2.2f+0.9f-14-8
Answer:
-1.3f-22
please mark brainliest :))))))
Step-by-step explanation:
Answer:
-1.3 - 6
Step-by-step explanation:
combine -2.2 and 0.9, since 0.9 is positive and -2.2 is negative the answer is -1.3, then simply subtract 14-8.
Which are equivalent ratios to 1:3?
Check all that are true.
2:6
3:9
3:6
1:9
2:8
Answer:
both 2:6 and 3:9 are the correct answers
Step-by-step explanation:
Andy is buying a car he negotaited a 7% descrease on £6500 car. he will pay the full balance in 12 equal monthly payments.
Answer:
he would pay 503.75 every month
Step-by-step explanation:
Identifying When to Use a Sample
ch survey is a sample not necessary?
Please help i need help please
Answer:
angle a
angle CAB
angle BAC
What is the area of the triangle?
3
4
5
Answer:
The area is 6.
Hope this helps
determine wether the given segments have the same length. justify your answer
After spending $5, Isaac had twice as much money as Luke. If Luke had $10, how much money did Isaac have at first?
Answer:
$25
Step-by-step explanation:
10*2=20
20+5=25
PLEASE HELP ME DUE TODAY!! MARKING BRAINLEIST
Answer:
the first one
Step-by-step explanation:
perform 1/3 on both x and y:
Your answer is C as it starts with J = (1, 2)
ten less the quotient of a number and three
Answer:
(x/3) - 10
Step-by-step explanation:
quotient = divide
it's ten less than what the quotient is.
Help me please please