Answer:
x^2-3x-10
Step-by-step explanation:
Answer:
The answer is x²-3x-10
Step-by-step explanation:
(x + 2)(x − 5)
x²-5x+2x-10
x²-3x-10
A grill at Rudy's restaurant will be used to cook sausage links that are2 lb each and briskets that are 8 lb each. No more than 140 lb of sausage links and briskets will be cooked on the grill for a graduation party.
Answer:
Step-by-step explanation:
The first one is correct.
Answer:
The firest one( 2x + 8y ≤ 140 )
Step-by-step explanation:
A color printer prints 21 pages in 9 minutes. How many pages does it print per minute? Round your answer to the nearest hundredth.
? = pages per minute
Answer:
2.33 = x
Step-by-step explanation:
pages minutes
21 9
x 1
Cross multiply.
21×1 = 9×x
21 9x
9 9
9 cancels 9 leaving x. and 21 divided by 9 equals 2.33 pages. NB. both sides are divided by 9 because we want x by itself and what you do to one side, you have to do to the other.
please I need help in this...it's for maths please
Answer:
1.6962 to 2.d.p = 1.700.007395 = 0.007 to 3d.p0.4247 = 0.425 to 3.d.p0.007395 = 0.0074 to 4.d.pSignificant Figures
32549 = 32500 to 3.s.f909520 = 910000 to 3.s.f32549 = 32550 to 4.s.f909520 = 909500 to 4.s.fStep-by-step explanation:
Answer:
hi hifsa please talk to me I wanna talk u
ummmmmmmmmmmmmmmmmmmmm plz hel-p
Answer:
and
Step-by-step explanation:
ok is a great resource for this year
Answer:
2.1 in decimal or 2 1/10 in mixed fraction.
Besed
2
Which point on the number line represents 4?
0
B
D
to
Ο Α
ОВ
с
OD
Sorry if you don’t understand the words I will put a picture
Answer:
I believe the answer is B
Step-by-step explanation:
good luck
the altitude H of cylinder with a constant volume V is inversely proportional to the square of its radius R. write the related variation equation
Answer:
The related variation will be:
H = V/R²Step-by-step explanation:
We know that when 'y' varies inversely with 'x', we get the equation
y ∝ 1/x
y = k × 1/x
Here 'k' is the constant of proportionality
Given that the altitude H of a cylinder with a constant volume V is inversely proportional to the square of its radius R.
so the equation can be mapped as
H ∝ 1/R²
H = k/R²
In this case, the k is the constant volume. i.e. V = k
Thus, the equation becomes
H = V/R²
where H is the altitude, V is the constant volume and R is the radius.
Therefore, the related variation will be:
H = V/R²The variation equation showing the relationship between H, V and R is given by H = VR²
A direct proportional relationship is that in which as one variable increases the other variable increases and vice versa.
An indirect proportional relationship is that in which as one variable increases the other variable decreases and vice versa.
Let H represent the altitude and R represent the radius.
H ∝ R²
H = VR²; V (volume) is the constant of proportionality
The variation equation showing the relationship between H, V and R is given by H = VR²
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During batting practice, two pop flies are hit from the same location, 2 s apart. The paths are modeled by the equations h = -16t2 + 56t and h = -16t2 + 156t - 248, where t is the time that has passed since the first ball was hit.
Explain how to find the height at which the balls meet. Then find the height to the nearest tenth.
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Answer:
40.5 ft
Step-by-step explanation:
Solve for the time at which the balls meet, then find the corresponding height.
__
The balls will meet at the height such that the two values of h are the same.
-16t^2 +56t = h = -16t^2 +156t -248
0 = 100t -248
t = 2.48
Using the first equation to find h, we have ...
h = t(-16t +56) = 2.48(-16·2.48 +56) = 40.4736
The balls meet at a height of about 40.5 feet.
Answer:
Use substitution to write the equation: -16t^2 +56t = -16t^2 + 156 - 248
simplify and solve for t, which is 2.48 seconds
substitute 2.48 for t into either equation to get h=40.5 feet
Jamal and Samuel are saving for a camping trip. Jamal starts with $18 and saves $5 each week. Samuel starts with $10 and saves $7 each week. Use the drop-down menus to complete the rule for the amount of savings for each boy.
Answer:
4 weeks
$28
Step-by-step explanation:
Let
x = number of weeks
Jamal's savings = 18 + 5x
Samuel's savings = 10 + 7x
Equate both savings
Jamal's savings = Samuel's savings
18 + 5x = 10 + 7x
18 - 10 = 7x - 5x
8 = 2x
x = 8 / 2
= 4
x = 4 weeks
Check:
18 + 5x
18 + 5(2)
18 + 10
= $28
Each boy would have saved an equal amount of $28 at the end of the 4th week
A group of students collect a number of shells on the beach. They sort the shells into three piles based on the size of each shell. Pile 1 has half as many shells as the total amount they collected. Pile 2 has 10 fewer shells than the first pile. Pile 3 has the remaining shells. Write an expression that represents the number of shells in Pile 2.
Answer:
Three piles
Let No. of shells =S
pile1=0.5 S
pile2=0.5S-10
pile 3=10
The required expression is [tex]y=x-10[/tex]
Computation:
Let us that,
The number of shells in pile 1 be[tex]'x'[/tex]
The number of shells in pile 2 be [tex]'y'[/tex]
The number of shells in pile 3 be [tex]'z'[/tex]
Now,
The number of shells in pile 2 is 10 fewer than the number of shells in pile 1.
So, the expression is, [tex]y = x - 10[/tex]
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Every school day, Dylan rides the school bus 4.79 miles round trip between home and school. Estimate the total distance Dylan rode the school bus last month when there were 21 school days. Write an equation with an estimated answer.
Answer:
4.79 x 21 = 101 (rounded up from 100.59)
Step-by-step explanation:
Which equation is equivalent to 9x+4y=16
y=9/4x+4
y=-9/4x+4
y=4/9x+16/9
y=-4/9x+4/7
Answer:
The answer is 4/9x+16/9
Step-by-step explanation:
simply fully 2x^2-5x+3 / x^2+5x-6
Answer:
did this help
Step-by-step explanation:
How far is a million inches in miles
(There are 5,280 feet in 1 mile)
Answer: 15.7828283 miles
Step-by-step explanation: 5280*12 = 63360. There are 63360 inches in 1 mile. 1000000/63360=15.7828283
Simplify the expression. 14 + (-3) -3/7j - 6/7j + 6
Answer:
[tex]t^{14}[/tex] + 3 + − [tex]\frac{3j}{7}[/tex] + 7 + -[tex]\frac{6j}{7}[/tex]
Step-by-step explanation:
when using the correct order of operations ,you always add before you subtract.
Answer:
False
Step-by-step explanation:
Additions and subtractions are done in the order they appear from left to right.
A rectangular block of metal is 25cm long, 13cm wide and 10cm high.
The metal block is melted down and all of the metal is used to make a cube.
Work out the length of each side of the new cube formed.
Give your answer rounded to 1DP.
Answer:
14.8 cm
Step-by-step explanation:
Volume of the block: 25 × 13 × 10 = 3250
Side length of the cube: [tex]\sqrt[3]{3250}[/tex] ≈ 14.8
Answer:
14.8
Step-by-step explanation:
Volume of box = volume of cube
Drag each tile to the correct box. A group of marine biologists on a marine expedition recorded the elevations at which they found a few animals, with respect to sea level. Arrange the animals in the decreasing order of the elevations at which the marine biologists found them. sea turtle -502 feet sea urchin -452 feet garden eel -396 feet great white shark -430 feet > > >
Answer:
Garden eel, Great white shark, sea urchin, Sea turtle
Step-by-step explanation:
Given that:
Animal ____ altitude
Sea turtle __ - 502
Sea urchin __ - 452
Garden eel __ - 396
Great white shark __ - 430
Arranging in decreasing order of elevation :
-396 > - 430 > - 452 > - 502
Hence, the animals can be arranged in decreasing order of elevation thus :
Garden eel, Great white shark, sea urchin, Sea turtle
Answer:
Garden eel, Great white shark, sea urchin, Sea turtle
Step-by-step explanation:
It is the same as the question before it.
Help me pls, for number 19, I have absolutely no idea what I’m supposed to do.
All you have to do is take the value listed above for g(x) and set it equal to 16.
-3x+1=16.
Subtract 1 from both sides
-3x=15
divide both sides by -3
x=-5
Point A is one vertex of triangle ABC. Point B is the x-intercept of 6x-4y=-12 and point C is the y-intercept. What are points B and C? Sketch the triangle in the coordinate plane.
Answer: point b=(-2,0) point c=(0.3)
triangle graph= c at the top b on the left side bottom and a on the right side botton
Step-by-step explanation:
Find the median of the
data. 7,5, 12, 8, 2,9,4
Answer:
7
Step-by-step explanation:
First, put them in numerical order: 2, 4, 5, 7, 8, 9, 12
Then cross out one from each side until you get to the middle
The median of the given data set 7,5, 12, 8, 2,9,4 is 7.
What are the mode and median?Mode is the highest frequency number while the median is the middle value of a data set after writing either increasing or decreasing manner.
For example;
Set { 1,2,2,3,4,5,6} here mode is 2 and median is 3.
Given the data set,
7,5, 12, 8, 2,9,4
If we write it in increasing order then,
2, 4, 5, 7, 8, 9, 12
Now median is middle value so here 7 is in between 3 - 3 from left and right.
Hence "The median of the given data set 7,5, 12, 8, 2,9,4 is 7".
To learn more about mode and median,
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Can someone please help me with this
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Answer:
[-6, 8]
Step-by-step explanation:
The range of a function is its vertical extent.
Here, the low point on the graph is (11, -6). The high point on the graph is (-6, 8). The graph is continuous between these points, so every value between a low of y=-6 and a high of y=8 is part of the range:
-6 ≤ y ≤ 8 . . . . . . . . [-6, 8] in interval notation
What is the slope of(-4,5) to (-12,8)
Answer:
-3/8
Step-by-step explanation:
I would use a table
x y
-4 5
-12 8
from -4 to -12 you subtract -8
from 5 to 8 you add 3
so y/x = 3/-8
The slope is - [tex]\frac{3}{8}[/tex]
Hope this helped!
Create an equation that has -12 and -15 as its only solutions.
Answer:
x^2+27x+180
Step-by-step explanation:
okay so -12 and 15 are the only solutions
work backward
add 12 and add 15 from x
(x+12)(x+15)
then solve this
x*x=x^2
x*+15=15x
12*x=12x
12*15=180
now put it all together
x^2+15x+12x+180
then simplify
x2+27x+180
(x+12)(x+15)
Then solve again to try it.
x+12=0
x+15=0
x=-12
x=-15
Hope this helps.
3
1
5
×
1
1
8
Give your answer as a mixed number in its simplest form.
Answer:
is it saying 3 1/5 * 1 1/8?
Step-by-step explanation:
Suppose that scores on a particular test are normally distributed with a mean of 140 and a standard deviation of 18. What is the minimum score needed to be in the top 5% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.
Answer:
153.16
Step-by-step explanation:
We solve using z score formula
z = (x-μ)/σ, where
x is the raw score = ???
μ is the population mean = 140
σ is the population standard deviation = 8
Top 5% means the score is in the 95th percentile
The z score of 95th percentile = 1.645
1.645 = x - 140/8
Cross Multiply
1.645 × 8 = x - 140
13.16 = x - 140
x = 13.16 + 140
x = 153.16
Therefore, the minimum score needed to be in the top 5% of the scores on the test is 153.16
Myra is putting together a puzzle such that every 5 days she places one quarter of the remaining pieces into the puzzle. If she started with a 800 piece puzzle, how many pieces are left to be placed after 23 days? Show the work that leads to your answer
Given:
Initial number of pieces Myra have = 800.
Every 5 days she places one quarter of the remaining pieces into the puzzle.
To find:
The number of remaining pieces after 23 days.
Solution:
Initial number of pieces Myra have = 800.
Every 5 days she places one quarter of the remaining pieces into the puzzle.
It means, she will place the puzzles on 5,10,15,20,25,.. days. she will place the puzzle 4 times before 23 days.
The number of remaining pieces decreasing by [tex]\dfrac{1}{4}[/tex].
Formula for number of remaining pieces is
[tex]y=a_0(1-r)^t[/tex]
where, [tex]a_0[/tex] is the initial value, r is decreasing rate and t is time.
Putting [tex]a_0=800,r=\dfrac{1}{4}[/tex] and t=4, we get
[tex]y=800(1-\dfrac{1}{4})^4[/tex]
[tex]y=800(\dfrac{3}{4})^4[/tex]
[tex]y=800(0.75)^4[/tex]
[tex]y=800(0.31640625 )[/tex]
[tex]y=253.125[/tex]
Approximate the value to the nearest whole number.
[tex]y\approx 253[/tex]
Therefore, the number of remaining pieces is 253.
The temperature in the morning was−8 °F. The temperature dropped 13 degrees by night. What is the temperature at night?
Answer:
-21 degrees
Step-by-step explanation:
-8+(-13)=-21
what is the bill for 10 day rental b = 45.95d + 38.5
Answer:
b = 498
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
b = 45.95d + 38.5
d = 10 days
Step 2: Evaluate
Substitute: b = 45.95(10) + 38.5Multiply: b = 459.5 + 38.5Add: b = 498Answer:
498 dollars
Step-by-step explanation:
So just plug in the 10 in the equation for D
45.95*10+38.5
Now just solve using order of operations
You would get 498
How would i know if a line on a graph has passed the vertical line test?
Answer:
The vertical line will only pass the graph line once.
Step-by-step explanation:
For example, I found an example online. The vertical line intersects a circle twice. But on a horizontal squiggly line, it only touches it once. So the circle is NOT a function but the squiggly line IS a function.
Hope this helps!! Brainiest is appreciated!! Happy Holidays!!!!
Two trains have to travel 300 miles. Train A travels at 50 mph and train B travels at 60 mph. However, Train B leaves 1 hour later. When will the two trains meet?
Answer:
7 hours
Step-by-step explanation:
They won’t nessciarly pass each other while on the tracks becuase Train B is gonna be done with 300 miles so its at the station, it takes 6 hours for the A to reach that station but train B left an hour earlier so that adds another hour
So 7 hours until the two trains meet
Answer:
At the end of the travilling distance and they will take 6 hours
Step-by-step explanation:
After one hour train A is 50mph far but train B is 0 mph. In 2 hours train A is 100 mph and train B is 60 mph. In 3 hours the distance between them is 30 mph. In 4 hours the distance between them will decrease to 20 mph. In 5 hours will be 10 mph the distance between them. So you can see both trains will meet each other at the end of travilling distance so they will arrived at the same time
