Answer:
en los números negativos es opuesto a los positivos es decir en los positivos después del 302 ira el 303 encambio en los negativos del
-10 irá el -9
A 15-ft by 15-ft rectangular swimming pool is surrounded by a walkway of uniform width. If the total area of the walkway is 304 ft^2, how wide is the walkway?
Answer:
4 ft = width of walkway
Step-by-step explanation:
It helps if you can draw a figure.
Let x = width of walkway
Length of pool + walkway = (2x + 15)
Width of pool + walkway = (2x + 15)
area of pool and walkway together = (2x + 15)(2x + 15) = [tex]4x^{2} = 60x + 225[/tex]
Area of the pool = 15(15) = 225
Now,
The area of the walkway = area of pool and walkway together - area of pool
304 = 4[tex]x^{2}[/tex] + 60x + 225 - 225
304 = [tex]4x^{2}[/tex] + 60x
4[tex]x^{2}[/tex] + 60x - 304 = 0
4([tex]x^{2}[/tex] +15x - 76) = 0
4(x - 4)(x + 19) = 0
x = 4 x = -19
-19 must be discarded because a length cannot be negative
Therefore x = 4 ft = width of walkway
[tex]4x\leq 12[/tex]
Divide each term by
4
and simplify.
Inequality Form:
r ≤ 3
Interval Notation:
( − ∞ , 3 ]
What is the value of x in the matrix equation below?
=======================================================
Explanation:
The -2 outside the first matrix multiplies to every item inside that first matrix.
So the x updates to -2x in the upper left corner.
That -2x adds to the 3 in the upper left corner of the second matrix. The sum -2x+3 must be equal to the value in the upper left corner of the third matrix.
Everything is focused on the upper left corner.
So we must solve -2x+3 = x
Doing so leads to...
-2x+3 = x
3 = x+2x
3 = 3x
3x = 3
x = 3/3
x = 1
There are (3x - 2) students in a classroom. If each one of them is asked to bring
(x - 3) pieces of paper. How many pieces of paper will the class collect?
Step-by-step explanation:
STUDENTS=3X-2
IECES OF PAPER=X-3
TOTAL PIECES OF PAPER=(3X-2)(X-3)
=3X^2-9X-2X+6
3X^2-11X+6
helppp pleaasssseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
54.3701 feet or 16.57200648 meters
Step-by-step explanation:
the figure it made of a square and right triangles. Find the area
PLZ help me
Answer:
720 inches squared
Step-by-step explanation:
for the square:
a = 24 x 24 = 576 inches squared
for the triangle:
36-24 =
a = 12 x 24 / 2
= 144 inches squared
576 + 144 = 720 inches squared
Answer:
720 inches squared
Step-by-step explanation:
i took test
Subtract.
(6x + 5) - (x+3)
O A. 5x + 2
B. 5x shig
C. 6x+8
0 D. 6x + 2
The measure of AOC is 90. Find the value of x.
Answer:
x = 10 degr
Step-by-step explanation:
3x + 46 + 14 = 90
3x + 60 = 90
3x + 60 - 60 = 90 - 60
3x = 30
x = 10 deg
Answer:
Step-by-step explanation:10
w is directly proportional to u if w=5 when u=3,find u when w is =2/7
Answer:
u = 6/35
Step-by-step explanation:
w = k * u
w = ku
Where
k = constant of proportionality
if w=5 when u= 3
w = ku
5 = k * 3
5 = 3k
k = 5/3
find u when w is =2/7
w = ku
2/7 = 5/3 * U
2/7 = 5/3u
u = 2/7 ÷ 5/3
= 2/7 × 3/5
= (2*3)/(7*5)
= 6/35
u = 6/35
A shirt costs $5 less than a sweater. Together they cost
$25. How much does the sweater cost? _____
Answer:
$20
Step-by-step explanation:
25-5=20 that is your answer
Answer:
15 dollars
Step-by-step explanation:
The rectangle has an area of 128 square inches and a width of 8 inches. Find the perimeter of the rectangle.
The answer is 48 square inches as the perimeter.
The perimeter of the rectangle is 48 inches.
What is rectangular perimeter?The whole distance that a rectangle's borders, or its sides, cover is known as its perimeter. Given that a rectangle has four sides, the perimeter of the rectangle will be equal to the total of its four sides.
Given:
The rectangle has an area of 128 square inches and a width of 8 inches.
That means, the length,
= area of the rectangle / the width of the rectangle
= 128/8
= 16 inches.
The perimeter of the rectangle,
= 2 (length + width)
= 2 (16 + 8)
= 48 inches.
Therefore, the perimeter is 48 inches.
To learn more about the rectangular perimeter;
https://brainly.com/question/22109593
#SPJ2
what is 21+7+4×8 gemdas rule
Answer:
60
Step-by-step explanation:
21+7+4x8=
21+7+32=
60
Help me with the area of the following triangle??? 25 POINTS question
-13/2x+1 is the answer which the area
How to find it simple:
Do 1/2*3x-4
then use that answer and multiple it with the height which is 2x+1 and you get the answer.
I need help on this assignment, I need to find the angles of the blank spaces. Anything is appreciated!
Answer:
3: 97
10: 97
9: 83
5: 97
7: 83
16: 97
Im 100% on these answers bc Ive already taken this class :)
Answer:
Step-by-step explanation:
9) m∠3 = m∠2 {Vertically opposite angles}
m∠3 = 97
m∠10 = m∠2 {Corresponding angle}
m∠10 = 97
m∠9 +m∠10 = 180 {Linear pair}
m∠9 + 97 = 180
m∠9 = 180 - 97
m∠9 = 83
m∠6 = 83
m∠5 + m∠6 = 180 {linear pair}
m∠5 + 83 = 180
m∠5 = 180 - 83
m∠5 = 97
m∠7 = m∠6
m∠7 = 83
m∠8 = m∠5 {Vertically opposite angles}
m∠8 = 97
m∠16 = m∠8 {Corresponding angle}
m∠16 = 97
Pensé dos números. Sumados dan 38 y restados dan 2. ¿Qué números son?
Answer:
sorry I cannot help you sir can you translate it into English
2x+3y=1470 changed to slope intercept form, write a description which is clear precise and correct of how to graph the line using the slope intercept method,changes equation to to function notation and explains clearly what the graph of the equation represents. graph the equation and labels the intercept correctly. Write at least 3 sentences explaining how the graphs of the two equations are the same and how they are different.
Answer:
y= 490 - 2x
Step-by-step explanation:
Answer: Do I get brainliest if I try? 7 = 490 - 2x
Step-by-step explanation:
You deposit $250 in an account. The account earns $20 simple interest in 4 years. What is the annual interest rate?
Answer:
5.00
Step-by-step explanation:
20/4 years = 5 per year
The figure shows two lines cut by transversal.wich statement correctly explains why the two lines are parallel
Answer:
D
Step-by-step explanation:
This is because the angle are corresponding which mean they are on the same side and are the same number
Hope this Helped
can you help me with this
Answer:
[tex]140[/tex]°
Step-by-step explanation:
This polygon has [tex]9[/tex] sides, so it's a nonagon. The expression used to find the sum of the measures of the interior angles of any polygon is [tex]180(n-2)[/tex]° where [tex]n[/tex] is the number of sides the polygon has. In this case, [tex]n=9[/tex], so the sum of the measures of the interior angles of this polygon is [tex]180(9-2)=180*7=1260[/tex]°.
We are given that this is a regular polygon (with 9 sides), meaning that all of its interior angles have the same measure, and we also know that the sum of the measures of its interior angles is [tex]1260[/tex]°. Therefore, each interior angle measures [tex]\frac{1260}{9}=140[/tex]°. Hope this helps!
Plz help due tomorrow
Answer:
It's C) -6y
Step-by-step explanation:
I know someone already answered but I figured I could explain since it looks like you are getting a little confused. The reason it's not A is because its
-5 + 5 which is zero. So it gets rid of x so your just left with -6y. If it was
5x+5x then it would 10x but the negative makes it 0
Which equation has no solution?
6(5x+4)=3(10x+7)
6 times open paren 5 x plus 4 close paren is equal to 3 times open paren 10 x plus 7 close paren
18x+17=2(9x+8)+1
18 x plus 17 is equal to 2 times open paren 9 x plus 8 close paren plus 1
4(3x−7)=8(2x+3)
Answer:
The answer of the question is 6(5x+4)=3(10x+7)
BRAINLIEST to wherever gets this correct
Answer:
[tex]300\pi[/tex] cubic feet
Step-by-step explanation:
Let r be the radius of cone and h be the height of cone.
Radius of cylinder=r
Height of cylinder=h
Volume of cone=[tex]100\pi ft^3[/tex]
We have to find the volume of cylinder.
We know that
Volume of cone=[tex]\frac{1}{3}\pi r^2 h[/tex]
[tex]100\pi=\frac{1}{3}\pi r^2 h[/tex]
[tex]r^2 h=300[/tex]
Volume of cylinder=[tex]\pi r^2 h[/tex]
Using the formula
Volume of cylinder=[tex]\pi (300)=300\pi ft^3[/tex]
Hence, the volume of cylinder=[tex]300\pi[/tex] cubic feet
Pete is choosing his clothes for the day. His bottoms will be either cargo shorts(C) or jeans (J). His top will be T shirt (T), sweatshirt (S), or long sleeved shirt (L)
The question is incomplete. Here is the complete question.
Pete is choosing his clothes for the day. His bottoms will be either cago shorts (C) or jeans (J). His top will be T-shirt (T), sweatshirt (S) or long sleeved shirt (L).
Which is a complete list of the possilbe outfits he can choose from?
CT, CS, CL, JT, JS, JL
CJ, CT, CS, CL
CJT, CJS, CJL
CT, TC, JS, SJ, CL, LC
Answer: CT, CS, CL, JT, JS, JL
Step-by-step explanation: The Fundamental Counting Principle is a method of determining a number of ways independents events can occur, i.e., it states that if there are t ways of doing something and w ways of doing another, then there are t x w ways of doing both things.
For example:
Peter has 2 choices of bottom and 3 choices of top. So, according to the principle, he will have 2 x 3 choices of clothing.
And the choices are:
shorts and t-shirt = CT
shorts and sweatshirt = CS
shorts and long sleeved = CL
jeans and T-short = JT
jeans and sweatshirt = JS
jeans and long sleeved = JL
The order he chooses doesn't matter.
So, the right alternative is CT, CS, CL, JT, JS, JL.
Help me out plz ????
96 cm^2
Each side has an area of 24 cm^2, so just multiply that by 4
A recipe calls for 4 spoons of sugar for every 40g of flour if 240g of flour is used how much sugar would be needed
Answer:
24 spoons of sugar
Step-by-step explanation:
240/40= 6
6x4= 24
A jogger is running with an initial speed of 5 m/s. The jogger then sprints to the finish line, increasing their speed to 10 m/s over 5 seconds. What is the jogger's acceleration in m/s squared?
Answer:
Step-by-step explanation:
1 m/s square
Of the following test scores, who do you think received the best score? The worst score? Why?
Carla : 3 out of 5
Desmond: 20 out of 25
Ignacio: 6.5 out of 10
Gina: 38 out of 50
Answer:
Desmond
Step-by-step explanation:
3 over 5 x 100% = 60%
20 over 25 x 100% = 80%
6.5 over 10 x 100% = 65%
38 over 50 x 100% = 76%
The side lengths of a triangle are 9, 12, and 18. Is this a right triangle? O A. Yes, because 92 + 122
Answer:
O A. Yes, because 92 + 122 = 152
B. No, because 9 + 12 15.
C. Yes, because 92 + 122> 152.
D. No, because 92 + 122 + 15 ^2
1
SEE ANSWER
Step-by-step explanation:
Our teacher hasn’t explained the concept yet but class was canceled today
Answer:
What grade is this?
Step-by-step explanation:
2
1
X 46
7. Find the m 2 JKL
in rhombus JKLM
Step-by-step explanation:
since KLJ is a parallelogram, it can be split into 2 congruent triangles, as seen above. The angles remain the same, so we know angle KJL is also 25 degrees. Using the triangle angle sum theorem (all sides of a triangle add up to 180 degrees), we can determine the missing angle measure is 25 degrees. It would have been nice if the question told us JKLM was also a rhombus.
