Answer:
y = 7x - 5
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 7 and c = - 5, then
y = 7x - 5 ← equation of line
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Find the slope of each linear graph to solve the riddle.
( i just need help with V)
Answer:
slope=15÷10=1.5 or 3/2
Step-by-step explanation:
slope=rise÷run
10 right 15 up
slope=15÷10=1.5 or 3/2
The slope is calculated as the ratio of the rise and run. The slope of the given line will be [tex]\dfrac{3}{2}[/tex].
In mathematics, slope refers to the measure of the steepness or inclination of a line. It describes how much a line slants or rises/falls as it moves horizontally.
A positive slope means the line is upward-sloping, rising from left to right, while a negative slope indicates a downward-sloping line.
The slope can be calculated by the ratio of the rise and the run. The points on the given graph are A(10,30) and B(20,45). The slope is calculated by the formula written below,
[tex]m = \dfrac{y_2-y_1}{x_2-x_1}[/tex]
The slope of the line is calculated below
[tex]m = \dfrac{y_2-y_1}{x_2-x_1}\\m = \dfrac{45-30}{20-10}\\m = \dfrac{3}{2}[/tex]
The slope of the line will be [tex]\dfrac{3}{2}[/tex].
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2) Mackenzie just started training for a marathon. According to her plan,
she must run 19 miles the first week and 25 miles the second week. What is
the percent increase?
Answer:
32%
Step-by-step explanation:
25 - 19 = 6
6 divided by 19 = 0.315
round to the nearest percent, 32%
Find the perimeter of the following figure:
a. 3a2+ 22a + 35
b. 8a + 24
c. 4a + 12
d. 3a2 +22a + 12
Answer:
B
Step-by-step explanation:
8a+24
How many people ate at least 1 banana last week?
Explain your answer.
Answer:
11 people ate at least 1 banana.
Select the situation that describes the expression given below.
A.
Janey is given cups of flour for making cookies. She only uses of a cup of the flour.
B.
Jean has pounds of grapes. He gives of a pound of grapes to Roy.
C.
Elroy cuts meters of rope into pieces that are each of a meter long.
D.
Von runs around a jogging track times. The jogging track is of a kilometer long.
Answer:
the awnser should be. c
Step-by-step explanation:
because shes cutting them which divides them
I Need help ASAP!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I'm sorry I know nothing about this but I hope this helps
Answer this problem
Answer:
(3,-7)
(-8,48)
(-4,28)
(8,-32)
(-3,23)
Step-by-step explanation:
To solve, just put in the x value from the table as the x value in the equation. Then solve to get y.
Hope it helps!
What is the volume of a cylinder, in cubic centimeters, with a height of 2 centimeters
and a base diameter of 20 centimeters? Round to the nearest tenths place
Answer:
V ≈ 628.3 cm³Step-by-step explanation:
Volume of cylinder: V = π×r² × h
diameter = 20 cm ⇒ r = 10 cm
h = 2 cm
Volume:
V = π×(10)²×2 = 200π cm³ = 628.318.... cm³ ≈ 628.3 cm³
I don't know how to answer this please help
Answer:
1130.4 if rounded its 1330.5
i think thats the answer :3
Step-by-step explanation:
Kahleela starts the engine on her small private airplane. The engine drives a propeller with a radius of 8.5 feet and its centerline 11.5 feet above the ground. At idle, the propeller rotates at a constant speed of approximately 800 revolutions per minute. The height of one propeller tip as a function of time is given by h = 11.5 + 8.5 sin(800t), where h is the height in feet and t is the time in minutes. Find h when t = 5.5 minutes.
Answer:
a=21.1
Step-by-step explanation:
You can use the given (incorrect) equation and fill in the value of t to find h:
h = 12.5 +9sin(750(3.5)) = 3.68 . . . . feet
__
Or, you can use the correct equation, or just your knowledge of revolutions:
h = 12.5 +9sin(750(2π·3.5)) = 12.5 . . . . feet
in 3.5 minutes at 750 revolutions per minute, the propeller makes 2625 full revolutions, so is back where it started — at 12.5 feet above the ground.
Answer:
A. 3.1 feet is the answer i believe.........
Step-by-step explanation:
A school requires that 1 adult accompany every 8 students on a field trip. How many adults are needed to accompany 32 students?
Answer: 4 adults are needed to accompany 32 students.
Step-by-step explanation:
Given: School requires 1 adult to accompany every 8 students on a field trip.
The number of adults are needed to accompany 32 students = [tex]\dfrac{32}{\text{Number of students accompanied by an adult}}[/tex]
[tex]=\dfrac{32}{8}\\\\=4[/tex]
Hence, 4 adults are needed to accompany 32 students.
Can someone solve this?
25^2x-3=125^x+1
Answer:
im not so sure but here what i got
Step-by-step explanation:
(252)(x)−3=125x+1
125x=625x−4
What is the simplest form of 15/60
Answer:
1/4
Step-by-step explanation:
Answer:
15/60 simplified equals:
1/4
Step-by-step explanation:
In the fraction 15/60, 15 is the numerator and 60 is the denominator.
When you ask "What is 15/60 simplified?", we assume you want to know how to simplify the numerator and denominator to their smallest values, while still keeping the same value of the fraction.
We do this by first finding the greatest common factor of 15 and 60, which is 15.
Then, we divide both 15 and 60 by the greatest common factor to get the following simplified fraction:
1/4
I will give brailiest
Estimate the sale price of the item.
30% off a bike for $432.43
Answer:
Purchase Price:
$432
Discount:
(432 x 30)/100 = $129.60
Final Price:
432 - 129.60 = $302.40
Step-by-step explanation:
Answer:
About $129
Step-by-step explanation:
30% of $432.43 rounds to 30% of $430 = .3 x 430 = About $129 dollars
Hope that helps!
Please help. I attached the file below
Answer:
33.2
Step-by-step explanation:
41.5÷1.25=
33.2
Answer:
31.6 or 31 6/10 or 31 3/5
Step-by-step explanation:
39.5/1.25 = 31.6
Jack gets 31.6 miles per gallon.
.25 = 1/4
.5 = 1/2
The students in Jeanette's grade voted to select a guest speaker. 50% of the students voted for a famous athlete. If there are 22 students in Jeanette's grade, how many students voted for the athlete?
Rewrite the radical expression as a rational exponent.
Please help!!!
Answer:
C
Step-by-step explanation:
You can think of the square root as [tex]\frac{1}{2}[/tex] which would multiply throughout producing the answer.
Find the x- and y-intercepts of
5x - 3y = 12
.
Please help me my moms gonna kill me if I don’t get this done(20 points)
The polygons are similar. Find the values of
the variables. Write an equation and solve,
showing ALL the work.
Answer:
x=30° y=4
Step-by-step explanation:
[tex] \frac{y}{8} = \frac{2.5}{5} [/tex]
cross multiple
5y=8(2.5)
5y=20
divide 5 by 20
and you should y=4
since the polygons are similar x should have the same degrees as the bigger polygon
Answer: Y=4
Step-by-step explanation
Since the inside of a triangle is 180 degrees the 30 degrees plus the 90 degree corner minus the total inside degree so the other corner is 60 degrees. the dialation is 62.50 percent or .625 in decimal form which makes the vareable y equals 4 once you divide 2.5 by .625
Your welcome for the help :)
HELP I NEED HELP ASAP
A cylinder has a height of 14 centimeters and a radius of 17 centimeters. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.
Volume = [tex] \sf{\pi r^2 h} [/tex]
[tex] = \sf{3.14 \times {17}^{2} \times 14 } = \sf{12704.45~cm^3} [/tex]
plssss help giving brainly
Answer:
-2 and 4
Step-by-step explanation:
not 100% sure but i think so
Answer: 4 + -6 = -2
Explanation: it’s technically 4-6 which also equals -2
Solve for θ or x, round to the nearest tenth. I will mark brainliest if its correct!
Juanita has saved 20% of the money that she needs to buy a new bicycle if she has saved $52 how much money does the bicycle cost?
please help 25 points !!!!!!!!!!!!!!!!!!!
look at the picture below . write a word problem for that equation.
Now we have to,
Write a word problem for the equation,
→ 2/6 × 3/4
Let's write a word problem,
Nobita had got salary, then he spent his 2/6 of his salary for every 3/4 times. How much he had spent totally (in fraction), give the required expression?
Type your response in the box.
Solve the equation x^2 – 5 = √ x – 2 by using successive approximation-
9514 1404 393
Answer:
x ≈ 2.367796
Step-by-step explanation:
There are a number of ways to use "successive approximation" to find a solution to an equation. You have not specified the method or the required accuracy.
__
One of the more tedious is the bisection method, which computes the value of the function at the midpoint of an interval, to see if that midpoint should be a new interval bound. This method requires about 3 iterations per decimal place of the answer.
Another method is the secant method. It computes the x-intercept of the secant line joining the points at the ends of the interval containing the solution. The function value at this x-intercept is used to see if that point should be a new interval bound. This method converges slightly faster than the bisection method. It is speeded by adjusting both ends of the interval.
Newton's method iteration converges at a quadratic rate, nearly doubling the number of correct decimal digits at each iteration. This works in a fashion similar to the secant method, except the x-intercept is computed from the function value and its derivative, not from points at the ends of an interval.
__
We assume you want the solution to ...
x^2 -5 = √(x -2)
This is conveniently reformulated to ...
x^2 -5 -√(x -2) = 0
so that we're seeking a zero of the function on the left.
The attached shows several iterations of the secant method. The function g is used to compute the x-intercept point on the line between (x1, f(x1)) and (x2, f(x2)). Then f(g( )) computes the function value at that x-intercept. We have used that to decide what the next interval limits (x1, x2) could be.
Our final guess at x is ...
x ≈ 2.367796 . . . . secant method
which gives an error less than 10^-5 between the left- and right-sides of the equation.
_____
Additional comments
At the bottom of the attachment is the Newton's Method iterator. The nice thing about this graphing calculator is that it displays the result of computing h(x) even as the value of x is being typed. This means you can type what you see and achieve full calculator precision for the solution in basically one pass. This method gives x = 2.36779701571.
Some hand-held graphing calculators have a derivative function built-in, so it is practical to use them to perform Newton's method iteration in substantially the same way.
help how do u do this, this assignment is due in a couple hours
brainliest for helping
For questions 1-4, find the distance between points A and B. Round your solutions to the nearest tenth when necessary.
Answer:
1. AB= 8.94,
2. AB= 7.28
3. AB= 16.4
4. AB= 19.21
Step-by-step explanation:
This is fun! Well you have to find the (1,4) (or point e) point and count the distance to the other points point a and point b.
4 units from a to e and 8 b to e
a² + b² = c²
8² + 4² = c²
64 +16 = c
√80 = √c²
8.94 = c
It dose not matter which units you plug in for a and b but c has to be the long side of the triangle/ hypotonuse.
Follow the same steps for the rest of the problems.
On proplems 3 and 4 plot points first you can subtract the x-x and y-y as a short cut to find the units.
Recipe B uses 9 ounces of flour to make 12 servings of dough. How many flour is in per serving?
Answer:
Step-by-step explanation:
9/12 ounce = 3/4 = .75 ounce flour
The average depth of five lakes is 229m. If none of the lakes is less than 194m deep then the greatest possible depth of one of these lakes in meters is,
Answer:
The average depth of five lakes is 229m. If none of the lakes is less than 194m deep then the greatest possible depth of one of these lakes in meters is,
Answer:
369
Step-by-step explanation:
* = Multiply
5*229=1145
Lakes * Average = Total Average Depth of Five Lakes
(1145-369)/4=194 (it worked)
4 is the other lakes, 369 would be considered the largest lake.
Answer is 369.
Cheers, iYekria
Find the shaded area
Answer:
area of big rectangle=l×b=12×18=216cm²
area of smaller square=l²=8²=64cm²
area of shaded area =area of (bigger rectangle-smaller square)=216-64=152cm²