Answer: Length = 11
Width = 9
Step-by-step explanation:
Let x represent the unknown length.
Let x - 2 represent the unknown width.
The perimeter is equal to 2 times x + (x -2)
Equation:
2 (x + (x - 2)) = 40
x + (x - 2) = 40/2
x + x - 2 = 20
2x - 2 = 20
2x -2 + 2 = 20 + 2
The length is: 2x = 22 -> x = 22/2 -> x = 11
The width is: x - 2 = 9
3 new tires for $210; 4 new tires for $250
What is the place value of 7 in 0.724 rounded.
The place value of 7 in 0.724 = 7 tenths or 7/10 or 0.7
The place value of 2 in 0.724 = 2 hundredths or 2/100 or 0.02
The place value of 4 in 0.724 = 4 thousandths or 4/1000 or 0.004
Therefore , the place value of 7 in 0.724 is 7 tenths or 7/10 or 0.7 ( as all are the same ) .
A student evaluated −4 + (−9 12) and got an answer of 5 12. What might the student have done wrong? explain in details
Answer:
[tex]the \: students \: calculation \: was \\ based \:on\: addition \: of \: the \: numbers \\ without \: cosidering \: thier \: nagative \: signs.[/tex]
Which is equal to –214°?
Answer:
B
Step-by-step explanation:
Convert from degrees to radians using ratio pi/180. -107pi/90 radians would be the answer. Also edg. 2020
-107pi/90 radians is equal to -214degree.
We have to determine which is equal to –214°
Convert from degrees to radians using the ratio.
How to convert a degree into a radian?
To convert the value of the angle in degree, to its equivalent radians, we need to multiply the given value by π/180.
pi/180.
-107pi/90 radians is equal to -214degree
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Find the reciprocal of 10 1/2!
Answer:
2/21
Step-by-step explanation:
10 1/2=21/2 and then flip it
Why can't a whole number be irrational? Please dumb it down for me
Answer and Step-by-step explanation:
A whole number isn't irrational because it is a whole number. Confused? Most likely.
A whole number is any of the numbers {0, 1, 2, 3, ...} etc. There is no fractional or decimal part. And no negatives. Example: 5, 49 and 980 are all whole numbers.
An Irrational Number is a real number that cannot be written as a simple fraction. Irrational means not Rational. The irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers.
These are both real numbers because they don't go through the 4th wall (of science/math)
Imaginary numbers would use i.
what is the value of 2/3 rs if r= -6/7 and s= --3/10
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[tex]r = - \frac{6}{7} \\ [/tex]
[tex]s = - \frac{3}{10} \\ [/tex]
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[tex] \frac{2}{3} rs = \frac{2}{3} \times ( - \frac{6}{7} ) \times ( - \frac{3}{10} ) = \\ [/tex]
[tex] \frac{3 \times 2 \times 3 \times 2}{3 \times 7 \times 5 \times 2} = \frac{2 \times 3}{7 \times 5} = \frac{6}{35} \\ [/tex]
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Graph the function y = -1x +3.
Answer:
draw a point at the (0,3). That is your y intercept and now go down one and over to the right 1 time. Continue this process and connect the dots
that is your line
Step-by-step explanation:
Find the volume of the solid that lies under the plane 3x + 2y + z = 12 and above the rectangle. $$ R = \{(x,y) | 0\le x \le {\color{red}1}, -{\color{red}2} \le y \le {\color{red}4} \} $$
Answer:
51 cubic units
Step-by-step explanation:
[tex]3x+2y+z=12\\\Rightarrow z=12-3x-2y[/tex]
Now we integrate over volume integral over the range [tex]R = \{(x,y) | 0\le x \le {1}, -{2} \le y \le {4} \}[/tex]
[tex]V=\int_0^1\int_{-2}^4 12-3x-2y dydx\\ =\int_{-2}^4 12y-3yx-y^2|_4^{-2} dx\\ =\int_{0}^1 12\times4-3\times4x-16-[12\times-2-3\times-2x-4]dx\\ =\int_{0}^1 60-18xdx\\ =60x-9x^2|_{0}^1\\ =60-9\\ =51\ \text{cubic units}[/tex]
The volume of the solid is 51 cubic units.
Keith bought 8 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 30 cards left. How many cards did Keith start with?
please help!!!
Answer:
52 cards
Step-by-step explanation:
call the amount he started with " x "
then he bought 8 cards
so the new equation is
x+8
then he lost half of his cards
so now the equation is
(x + 8 )/2
that amount to 30 cards as per what is given in the problem
so now the equation is
( x + 8 )/2 = 30
solve using inverse operations and simplifying
( x + 8 )/2 = 30
*2 *2
x + 8 = 60
-8 -8
x = 52
can you explain the standard form of a line in algebra 1 ?
Which of the following is equal to 1/2 or -1/2? Check all that apply.
sin(7pi/6)
Sin(4pi/3)
Cos(5pi/3)
Cos(pi/6)
Cos(5pi/6)
Sin(5pi/6)
Answer: ITS A, C, F
Step-by-step explanation:
I JUST DID IT ON EDG 2020
Answer:
A
C
F
Step-by-step explanation:
At this point I’m just going to start singing songs ! For the caption
Answer:
[tex]the \: value \: is \:0.5 \: i.e\: option\:b[/tex]
Answer:
.50
Step-by-step explanation:
I am pretty sure
Bone-shaped treats are 5 for $3.50 at Shelley’s store and Sarah wants to buy 12. She set up and solved this proportion to find how much they would cost. Describe her error and find the correct solution.
5
3.5
=
12
x
3.5x = 60
x = $17.15
Answer:
Sarah multiplied the denominator by the denominator and the numerator by the numerator instead of finding the cross products. The equation should be 5x = 42, so the cost should be $8.40.
Step-by-step explanation:
the slope of a hill 3/190. The Hill has a ride of 400m. What is the horizontal distance covered by the hill?
Answer:
its 5
Step-by-step explanation:
The hill with a rise of 400m and a slope of 3/190 covers approximately 25333.33 meters horizontally.
Slope is a term used to describe how steep or inclined a line is on a graph. It shows the proportion of the rise to the run or vertical change, between any two points on a line. The slope is a fundamental idea in geometry, algebra and calculus; it shows how much the line rises or falls for each unit of horizontal distance. A slope of zero denotes a horizontal line while positive slopes denote upward inclines, negative slopes denote downward inclines, and vice versa.
Slope = rise / run
Given that the slope of the hill is 3/190 and the rise is 400m, we can set up the equation:
3/190 = 400 / run
run = 400 / (3/190) = 400 × (190/3)
= 400 × 63.33 ≈ 25333.33 meters
the horizontal distance covered by the hill is approximately 25333.33 meters.
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hello please help will give brainliest!
Answer:
420
Step-by-step explanation:
Answer:
A. 420
Step-by-step explanation:
nice
0.2-0.3 what is the midpoint?
Answer:
0.25
Step-by-step explanation:
Heather bought a shirt on sale for 45% off the regular price of $22.60. What was the sale price of the shirt not including tax?
Hi! I believe your answer is $10.17 because 45% of 22.60 is 10.17. I hope this helps you! Good luck and have a great day. ❤️ (Stream "Heather" by Conan Gray!)
express the polynomial 5x^2+8x^5-3^3+4-9x in standard form
Answer:
The answer is 8x^5 + 5x^2 + 9x − 31
Which phrase matches the algebraic expression below? (1 point)
3(x + 7) + 10
Answer:
Add 10 to three times the value of x minus 7.
Step-by-step explanation:
Answer:
Three times the difference of X and seven plus ten
Step-by-step explanation:
NEED HELP ASAP IF NOT I WILL FAIL. I WILL MARK YOU AS MOST BRAINIEST
When 2-Brothers Plumbing Company comes to
your crib, they charge a flat rate of $55 plus $58
per hour.
Let x = # of hours
Let y = the total amount of money they charge.
Write the equation for this scenario. When Mario
is giving you a thumbs up, you have succeeded!
What is the answer in a short sentence
Answer:
HI
Step-by-step explanation:
what is the value of x^2+4 for x=5
Answer:
25+4=29
thats your answer
PLEASE MARK AS THE BRAINLIEST
Answer:
29
Step-by-step explanation:
x^2+4
Let x= 5
5^2 +4
25+4
29
Find the values for x so that the perimeter of this rectangle is no greater than 150 centimeters
write an equation for the line below
Answer:
y = -X + 4 is the equation for the line below
8)
Erica chooses a number. She divides it by four then subtracts 11. She then divides this
result by two. Her answer is 12.5. What was the number she started with?
Step-by-step explanation:
Let x be the number.
Divide it by 4
x/4
Subtract 11
x/4 - 11
x-44/4
Divides this result by 2
x-44/4 ÷ 2
x-44/4 × 1/2
x-44/8
Her answer is 12.5
x-44/8 = 12.5
x-44 = 12.5 × 8
x = 100 + 44
x = 144
Hence,
She started with 144 number.
Which of the following is the radical expression of?
Answer:
The third answer
Step-by-step explanation:
Remember power over root and the 2 would not be under the root.
Answer:
the third one
Step-by-step explanation:
(9, - 4) and (5, 3) In simplest radical form
Answer: 33
Step-by-step explanation:
(9,-4) and (5,3)
=9*5+(-4)*3
=33
Find the difference: 4.203 - 0.01
Answer:
4.193
Step-by-step explanation:
you line up the decimals then subtract to get 4.193
Solve the following inequality.
−1
Answer:
any thing, not 1 or -1
Step-by-step explanation:
the equality to any number is either itself or its opposite 1 inequality would be 2-infinite or -2- -infinite and zero