Answer:
Step-by-step explanation:
Answer is
Y=-2x+12
help me please!!!!!
Answer:
5/6 and 6/7
Step-by-step explanation:
Answer:
5/6 then 6/7
Step-by-step explanation:
Both the numerator and denominator are being increased by 1.
The top (numerator) is one less than the denominator in each term.
So the answers are 5/6 and then 6/7.
5(x + 3) – 7x = what
Answer:
−2x+15
5x+15+−7x
=5x+15+−7x
=(5x+−7x)+(15)
Answer:
8
Step-by-step explanation:
5 times 3= 15
add x to 15 to get 15x
15x-7x=8
Amaya is standing 30 ft from a volleyball net. The net is 8 ft high. Amaya serves the ball. The path of the ball is modeled by the equation y=-0.02(x-18)^2+12, where x is the ball's horizontal distance in feet from Amaya's position and y is the distance in feet from the ground to the ball. a. How far away is the ball from Amaya when it is at its maximum height? Explain. b. Describe how you would find the ball's height when it crosses the net at x=30. a. How far away is the ball from Amaya when it is at its maximum height? Explain. The ball is nothing ft away from Amaya when it is at its maximum height. Use the ▼ y-coordinate x-coordinate of the vertex.
Answer:
a) 30feet
b) 9.12feet
Step-by-step explanation:
a) Given the path of the ball is modeled by the equation y=-0.02(x-18)²+12, where;
x is the ball's horizontal distance in feet from Amaya's position
y is the distance in feet from the ground to the ball.
The ball will be at the maximum height when dy/dx = 0
Differentiate the function:
dy/dx = 2(-0.02)(x-18)^(2-1)+0
dy/dx = -0.04(x-18)
Equate the resulting expression to zero and find x as shown;
-0.04(x-18) = 0
Open the parentheses
-0.04x+0.04(18) = 0
-0.04x+0.72 =0
-0.04x = -0.72
x = -0.72/-0.04
x = 18ft
Hence the ball is 18ft away from Amaya when it is at its maximum height
b) To get the balls height y when x = 30, we will substitute x = 30 into the equation given and calculate the value of y as shown:
y=-0.02(x-18)²+12
y = -0.02(30-18)²+12
y= -0.02(12)²+12
y = -0.02(144)+12
y = -2.88+12
y = 9.12 feet
Hence the Ball's height is 9.12feet when it crosses the net at x = 30.
Josh makes $37.25 selling candy for his football team fundraiser. The team makes 1,000 times as much money in all than jush does by himself. How much
money does the team make?
Answer:
The team makes $37,250
Step-by-step explanation:
Help in this one please
Katherine invests $7770 in a six-month money market account giving 5.8% simple annual interest and $12,500 in a
three-year CD giving 7 25% simple annual interest. Assuming that Katherine does not reinvest or renew these
investments, how much money will she have when both investments reach maturity, to the nearest dollar?
$2,944
b. $15,219
$23,214
d. $30,886
a
С.
Answer:
Katherine will receive $23214 to the nearest dollar from both investments.
Step-by-step explanation:
Simple interest = Principal × Time × rate
Le's work out the interest Katherine earns from the two investments.
Money Market Account
Simple interest = 7770 × 5.8/100 × 6/12
= 7770 × 0.058 × 0.5 = $225.33
So, the amount she gets at maturity is:
$7770 + $225.33= $7995.33
CD account
Simple interest = 12500 × 0.0725 × 3 = $2718.75
The amount she receives at the end of period is:
$12500 + $2718.75 = $15218.75
The total amount she receives from both investments at maturity is:
$15218.75 + $7995.33 = $23214.08
This to the nearest dollar is:
= $23214
Answer:
It's C on Edge
Step-by-step explanation:
Hans is using frequent flier miles to fly to a location 750 miles away, but the airline he is using still charges $20.19 for fees and taxes and $0.15 to redeem each mile. In the equation below, x represents the distance Hans is flying, and y represents the cost of the trip. Y = $0.15x + $20.19 How much did Hans pay for his trip?
Answer:
Cost of the trip = $132.69
Step-by-step explanation:
Given:
Total distance = 750 mile
Fixed charge = $20.19
Variable charges = $0.15 per mile
Find:
Cost of the trip
Computation:
Y = $0.15x + $20.19
Y = $0.15(750) + $20.19
Y = $132.69
Cost of the trip = $132.69
The harbormaster wants to place buoys where the river bottom is 20 feet below the surface of the water. Complete the absolute value equation to find the horizontal distance from the left shore at which the buoys should be placed. blank = 1/5|s blank|blank
Answer:
The answer is below
Step-by-step explanation:
The bottom of a river makes a V-shape that can be modeled with the absolute value function, d(h) = ⅕ ⎜h − 240⎟ − 48, where d is the depth of the river bottom (in feet) and h is the horizontal distance to the left-hand shore (in feet). A ship risks running aground if the bottom of its keel (its lowest point under the water) reaches down to the river bottom. Suppose you are the harbormaster and you want to place buoys where the river bottom is 20 feet below the surface. Complete the absolute value equation to find the horizontal distance from the left shore at which the buoys should be placed
Answer:
To solve the problem, the depth of the water would be equated to the position of the river bottom.
[tex]d(h)=river \ bottom\\\\The \ river \ bottom=-20\ feet(below)\\\\d(h) = -20\\\\\frac{1}{5}|h-240|-48=-20\\ \\\frac{1}{5}|h-240|=-20+48\\\\\frac{1}{5}|h-240|=28\\\\|h-240|=28*5\\\\|h-240|=140\\\\h-240=140\ or\ h-240=-140\\\\h=140+240\ or\ h=-140+240\\\\h=380\ or\ h=100\\\\The\ buoys\ should\ be\ placed\ at\ 100\ feet\ and\ 380\ feet\ from\ left-hand\ shore[/tex]
Write an equation, in slope-intercept form, that passes through point (-4,- 3) with slope 3.
Answer:
y=3x+9
Step-by-step explanation:
Slope intercept form: y=mx + b
m= slope
b= y-intercept
-Plugin the point
-3=3(-4)+b
-3(+12) = -12 + b(+ 12)
9=b
y = 3x + 9
What is the rate of change of the function represented by the table
A line PR, 3 cm long, is divided into equal segments. Point Q lies on the line such that the ratio of the length of PQ to that of PR is 4:9. What is the length of QR? Give the answer as a fractional value.
Answer:
8/3
Step-by-step explanation:
4:9
pq:pr
x:3
Cross multiply and make x subject of the formula
X=4/3
3-4/3=8/3
What is the answer to 0.75 (6+d)=12 step by step
Answer:
step 1: 0.75 x 6 = 4.5
step 2: 0.75 x d = 0.75d
step 3: 4.5 + 0.75 = 5.25
It's correct answer
Step-by-step explanation:
Help me with the 11 and 12 please
Answer:
-1|-4 -2|4
1|2 0|3
Etc. Etc.
I can't graph them though since I don't have paper
Jessica prepared 36 kilograms of dough after working 6 hours. How much dough did Jessica prepare if she worked for 8 hours? Assume the relationship is directly proportional.
Answer:
48
Step-by-step explanation:
because 36 divided by 6 is 6 and that is how much dough she produces in an hour so if you added two more 6s to 6 to make it 8 meaning you are adding 12 because that is how much dough she makes in an hour
Leeza is 6 years older than two times her brother Sammy’s age. Let s represent Sammy’s age.
Which expression represents Leeza’s age?
a.6s + 2
b.2s
c.s + 6
d.2s + 6
✧･ﾟ: *✧･ﾟ:*hello there!*:･ﾟ✧*:･ﾟ✧
✧here is your answer:
.・゜゜・d. 2s + 6・゜゜・．
♥⛧i hope this helps!!
✧༺♥༻∞lmk if you need help on anything else!!∞༺♥༻✧
❀-kay♬
Explain the difference between (-5)2 and -52. Your answer:
Answer:
-5(2) is different from -52 because -5(2) equals -10.
Step-by-step explanation:
-5(x) implies that -5 is being multiplied by x. Any time 2 numbers (one in parenthesis) are next to each other without a symbol inbetween it implies multiplication
There are 32 students in the school drill team performance. Each row of team members must have the same number of students. If there are at least 8 students in each row, what are all the possible arrangements?
Answer:
4 rows with 8 students in each
Step-by-step explanation:
4x8=32
Which of the following is the correct value for x
How many seconds did it take the paper airplane to reach the ground?
Answer:
46 seconds if I am correct.
Step-by-step explanation:
Toby is packaging 21 baseball cards and 12 football cards to sell at a swap meet. He had determined that it would be best to package them in packets of 3 cards each with 7 packs of baseball cards and 4 packs of football cards. However, Toby then decided to keep one baseball card for himself and sell the rest. How does this change how many packets of each card type there are and how many cards are in each packet? There would be [?] packets of baseball cards and [?] packets of football cards. Each packet would contain [?] cards.
Answer:
Before, he had 21 baseball cards and 12 football cards.
we know that:
21 = 7*3
12 = 4*3.
He decided to pack the cards in groups of 3, because 3 is the only common factor between 21 and 12.
Now, if he decides to keep one baseball card, now he has:
20 baseball cards and 12 football cards.
Now he has two possibilities for how many cards are in each pack, this is because:
12 = 4*3 = 2*2*3
20 = 4*5 = 2*2*5
12 and 20 have two common factors, 4 and 2.
a) Then he can sell them in packets of 2 cards each with:
12/2 = 6 packs of football.
20/2 = 10 packs of baseball.
b) Or he can sell them in packets of 4 cards each with:
12/4 = 3 packs of football.
20/4 = 5 packs of baseball.
1. 30 inches to 24 inches
Find the percent of change and round to the nearest whole percent
Answer:
6
Step-by-step explanation:
subtract if that makes sense
My teacher asked me to round 71,500 to the nearest thousand. I think that the answer is 72,000. Did I round correctly?
Answer:
yeah, that's right!!!!
A 355ml can of juice is leaking at a rate of 5ml per hour.A 325 ml drink is leaking at a rate of 2ml per hour.how long will it take for both cans to have the same amount of liquid?
Answer:
I think its 355 - 5x = 5x => x = 35.5 minutes
Step-by-step explanation:
hope this helps
Trinity collected 2,400 grams of pennies in a fundraiser. Each penny has a mass of 2.5 grams. How much money did Trinity raise? If you get stuck, consider using the table.
Answer:
960
Step-by-step explanation:
The youth center needs to buy 50 tennis balls. They come in cans that hold 6 balls each. How many complete cans of tennis balls will they need to buy? Explain your thinking.
Answer:
9 complete cans
Step-by-step explanation:
50/6=8 remainder of 2
8 is not enough, they need 9 o
23 less than a number p
Answer:
can u express ur question
Step-by-step explanation:
23-p it doesn't make sense cause I write a number with=
What is the value of x?
Answer:
X
Step-by-step explanation:
X+y=X so the answers x
The value of x using the two rectangles is 8.
We have,
Rectangle A:
Area
= length x width
= 6 x 4
=24 cm²
Rectangle B:
Area
= length x width
= 3x cm²
Now,
The area of both triangles is the same.
This means,
Area of first rectangle = Area of the second rectangle
24 = 3x
x = 24/3
x = 8
Thus,
The value of x using the two rectangles is 8.
Learn more about rectangles here:
https://brainly.com/question/15019502
#SPJ4
Which expression means “12 less than the product of 2 and a number b”?
1. Write the equation of a line parallel to y = -2x + 10 that passes through point (2, 4).
Answer:
y - 4= -2(x - 2)
Step-by-step explanation:
(This answer is in point slope form, if you need the answer in a different form like slope intercept, you would have to distribute the negative 2 and bring the negative 4 to the right side.)
So, you know the line is parallel to the equation y= -2x + 10. We know that parallel lines must have the same slope, so the answer will have a slope of negative 2. Because they have given you a point that the line passes through, we are going to put the answer in point slope form. we know a point and we know the slope, hence it is called point-slope.
Point slope form is y - y₁ = m(x - x₁). The m stands for the slope, and the x₁ and y₁ is where you will plug in the x and y coordinates (2,4) .
So to plug in the numbers into point slope form it would be y - 4 = -2 (x - 2). hope this helped :)
write four integers between -10 and 3
Answer:
-4, -3, -2, -1
Step-by-step explanation:
all the integers between -10 and 3
-9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2
Answer:
-9, -8, 2, 1
Step-by-step explanation:
Integers are whole number that can either be positive or negative.
