Answer and step-by-step explanation:
Let's say for example that you want the circumference of a car tire to be a certain size, but the company only sells the measurements in the tire's radius. The formula for circumference is 2 * pi * r. We know that pi is not a rational number, so an estimate is required. The car tire you want is 6.5 inches in it's radius, and you want to see what the circumference is. Firstly, let's substitute the r in our equation. Then the equation becomes 2 * pi * 6.5. Then let's solve. Let's change our equation to 2 * 6.5 * pi to save the irrational part for last. Then our equation is 13 * pi. Lastly, let's round pi to 3.14, since we can only estimate its irrationalness. We get 40.82 inches. This is an example that you might use in real life while multiplying and estimating. I hope this helps, I hope it's not wrong, but I do not think it is.
A windshield wiper blade is 9 inches long. To the nearest square inch, what is the area covered by the blade as it rotates through an angle of 50 degrees
Answer:
The area covered by the wiper blade is 35 square inches
Step-by-step explanation:
Here, we want to calculate the area covered by the blade of the wiper
Mathematically, this is simply the area of the sector formed by the wiper on the screen
This can be calculated as follows;
theta/360 * pi * r^2
From the question theta = 50 degrees
r = the length of the wiper = 9 inches
So the area is;
50/360 * 22/7 * 9^2 = 35.35714285714286
This is closest to 35 square inches
Mark is solving the following system.
X+y+Z= 2(1)
3x+2y+z=8 (2)
4x-y-Tz= 16 (3)
Step 1: He multiplies equation (1) by 7 and adds it to equation (3). Step 2: He multiplies equation (3) by 2 and adds it to equation (2)
Which statement explains Mark's mistake?
Answer:
the answer is c
Step-by-step explanation:
i just finished the quiz
He did not eliminate the same variables in steps 1 and 2
What is an equation of the line that passes through the points
(−4,−5) and
(−2,−6)? Put your answer in fully reduced form.
Answer:
(– 4,– 5) = –9
(– 2,– 6) = –8
The answer must be an explanation and equation
Answer:
(4.91, 3.5)
Step-by-step explanation:
6x+21y=103
+
-6x+23y=51
=
44y=154
y=3.5
6x+21(3.5)=103
6x+73.5=103
6x=29.5
x=4.91
(4.91, 3.5)
Answer:
The answer is (4,6) because you would have to eliminate the -6 and 6 to get the y which would be 24y and then divide 154/24 which is roughly 6 and then put that in to get x which is roughly 4
you can also use elimiation for y as well
Pure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances. ... A pure substance has constant physical and chemical properties, while mixtures have varying physical and chemical properties
Answer:
True
Step-by-step explanation:
The above statement is true because a mixture is a combination of two or more substances. and this is done physically ( not chemically as seen in compounds) which in turn gives rise to the varying physical and chemical property that a mixture possess , while a pure substance is inseparable while maintaining a constant physical and chemical property as well
5|7 - 9| - 2
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Answer: 8
Step-by-step explanation:
1. 5 * |7-9| - 2
2. 5 * 2 - 2
3. 10 - 2
4. 8
9. The width of a rectangle is six inches less than its length. If the perimeter of this rectangle is 20 inches, find
the width.
1) 6 inches
2) 2 inches
3) 8 inches
4) 4 inches
paul and jenn are building a new patio they are looking at home improvement stores for square tiles
ANSWER PLEASE QUICKLY!!!!!!! NOW!!!!
Which situation could NOT represent a proportional relationship?
The amount an employee who makes $9.50 per hour earns in h hours
The weight in x weeks of a puppy that gains 4 pounds per week if its starting weight is 16 pounds
The number of gallons of water in x barrels with 33 gallons of water in each barrel
The cost of purchasing p pounds of bananas for $0.36 per pound
Answer:
Trump is ugly
Step-by-step explanation:
Trump sucks
Can someone please help me with these problems? Will mark brainliest
Answer:
1/6
2/6 or 1/3
Step-by-step explanation:
The distance from City A to City B is 75,300 metres. The distance from City B to City C is 51,800 metres. Ross drives from City A to City C through City B. He drives for 62,400 metres before taking a rest. What is the remaining distance that Ross has to drive to reach City C ?
what is the answer for this question it's really urgent
A football team has an away game, and the bus breaks down. The coaches decide to drive the players to the game in cars and vans.
Four players can ride in each car. Six players can ride in each van. There are 48 players on the team. The equation 4.3 + 6y = 48
models this situation, where x is the number of cars and y is the number of vans
Answer 2x and 7y
Step-by-step explanation:
Question:
Find 4 possible solutions in the context of the problem.
The 4 possible solutions in the context of the problem are (0, 8), (3, 6), (6, 3), and (9, 2)
Given the equation that models the situation expressed as:
4x + 6y = 48
We are to find 4 possible solutions for x and y. Note that the values of x and y must be integers.
If there are no cars i.e. at when x = 0
4(0) + 6y = 48
0 + 6y = 48
6y = 48
y = 48/6
y = 8
One of the solution is (0, 8)
If there are 3 cars, i.e. at when x = 0
4(3) + 6y = 48
12 + 6y = 48
6y = 48 - 12
y = 36/6
y = 6
The second solution will be (3, 6)
If there are 6 cars, i.e. at when x = 6
4(6) + 6y = 48
24 + 6y = 48
6y = 48 - 24
y = 24/6
y = 4
The third solution will be (6, 3)
If there are 9 cars, i.e. at when x = 9
4(9) + 6y = 48
36 + 6y = 48
6y = 48 - 36
y = 12/6
y = 2
The fourth solution will be (9, 2)
Hence the 4 possible solutions in the context of the problem are (0, 8), (3, 6), (6, 3), and (9, 2)
Learn more here: https://brainly.com/question/2159099
Only do number 2
Please help me vote you brainiest
Answer:
he should use the 5/8 inch wide plank
Step-by-step explanation:
9/16 = 4.5/8 which is smaller than 5/8
The answer will be prime
need help with question 7. its due at 11:59 pm
Answer:
hi
Step-by-step explanation:
hi
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−4x+1=
\,\,-9x+16
−9x+16
Answer:
x=31/14
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−4x+1=−9x−16+9x+16
−4x+1=−9x+−16+9x+16
−4x+1=(−9x+9x)+(−16+16)(Combine Like Terms)
−4x+1=0
−4x+1=0
Step 2: Subtract 1 from both sides.
−4x+1−1=0−1
−4x=−1
Step 3: Divide both sides by -4.
−4x−4=−1/-4
x=1/4
write an expression that is equvalient to 3/5 (3y+15)
Answer:
not mine but yeah <3
Step-by-step explanation:
Find the 82nd term of arithmetic sequence-10,6,22,...
Answer:
23456787Step-by-step explanation:
Which one is the independent
Answer:
if u post the picture of the question or explain more detail i could help u out
Step-by-step explanation:
Eight teams of high school students helped clean up trash in the community. Afterwards, they shared 47 pizzas equally. How many pizzas did each team get?
Answer:
We know that 8 teams of students shared 47 pizzas.
The only thing we can assume is that the 47 pizzas where divided evenly between the teams, so the number of pizzas that each team gets is equal to the quotient between 47 and 8, or:
47/8 = 5.875
But this is not a whole number, and this happens because 47 is not a multiple of 8.
Then we can do:
47 = 40 + 7
And 40 is a multiple of 8.
40/8 = 5
Then each team got 5 whole pizzas, and there are 7 pizzas left.
Now, we can assume that each pizza has 8 slices.
Then there are left 7*8 = 56 slices.
And when we divide those by the number of teams, we have:
56 /8 = 7
So each team gets 7 slices from the remainder pizzas.
Then we can conclude that each team gets 5 whole pizzas and 7 slices.
what is 54x32
bTW thIS iS foR mY aunT agaIN sO yeaH plZ hElP mEh
Answer:
1728
Step-by-step explanation:
Answer:
1728
Step-by-step explanation:
54*32=1728
Gaira was asked to evaluate the algebraic expression –3.8x + 6 when x = –7.5. –3.8(–7.5) + 6(–7.5)Gaira was asked to evaluate the algebraic expression –3.8x + 6 when x = –7.5. –3.8(–7.5) + 6(–7.5) 28.5 + (–45) (–16.5) What mistake did she make 28.5 + (–45) (–16.5) What mistake did she make? What is the correct answer?
Answer:
See explanation
Step-by-step explanation:
Given
[tex]x = -7.5[/tex]
[tex]Expression: -3.8x + 6[/tex]
Required
Determine Gaira mistake
When Gaira solved the expression, she solved as:
[tex]-3.8x + 6x[/tex]
Giving her
[tex]-3.8x * -7.5 + 6 * -7.5[/tex]
This is incorrect as the correct expression is
[tex]-3.8x + 6[/tex]
and it is solved as follows:
Substitute -7.5 for x in -3.8x + 6
[tex]-3.8x + 6[/tex]
[tex]-3.8 * -7.5 + 6[/tex]
[tex]28.5 + 6[/tex]
[tex]34.5[/tex]
34.5 is the correct solution
Answer:
Gaira made a mistake when substituting the value –7.5 in for x. She multiplied both terms of the expression by –7.5 when she should have only multiplied –3.8 by –7.5. The correct answer is 34.5.
Step-by-step explanation:
Did the ED2020
Write the following numbers as a fraction in its simplest form.
1. 0.218
2. 2.72
3. 0.0005
4. 0.012
ALSO I NEED THIS NOW
Cora and Cameron are at a pool Carl dives in and touches the bottom of the pool 15 feet below the surface of the water Cameron is standing on a diving platform 2 feet above the service waiting for his turn what is the vertical distance between Carl's and and Cameron's feet
Answer:
17 feet
Step-by-step explanation:
Here, we want to calculate the vertical distance between Carl’s and Cameron’s feet
Since Carl is at the base of the pool, the distance between the water surface and the base of the pool will be 15 feet
We are also told they Cameron is on a diving platform 2 feet above;
So the distance between the two of them will be ;
15 feet + 2 feet = 17 feet
what is the lcm of the numbers 96 and 72
Answer:
288: least common multiple
Step-by-step explanation:
Answer:
The LCM of 96 and 72 is 1,656
Step-by-step explanation:
What is the slope of the line? PLEASE HELP
Evaluate.
3 -1
PLEASE EXPLAIN HOW TO DO THIS!!
Answer:
-1
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.
Which linear inequality represents the graph below?
A. 12-x+1
B. y> -*x+1
C. y24x+1
D.y> 5x+
Find the measure of angle one…. PLEASE HELP!!!!!!
Answer:
Step-by-step explanation:
9x - 5 = 58
9x = 63
x = 7
<2 = 32°
7y + 27 + 58 + 32 = 180
7y + 117 = 180
7y = 63
y = 9
for <1: x + 58 = 180
x = 122°
For the function f(x) = 7x + 5 Find f(-2)
Answer:
-9
Step-by-step explanation:
f(-2)=7(-2)+5
f(-2)=-14+5
f(-2)=-9
Which equation represents a line which is parallel to the line y = 4x – 5?
Answer:
Any answer that has the same slope and a different y-intercept
Step-by-step explanation:
They need to have the same slope so that they never intersect
They need to have different y-intercepts so that they are not directly on top of each other