Answer:
45%
Step-by-step explanation:
*The rectangle has a perimeter of 38 meters.
*The length of the rectangle is 5 meters more
than the width.
What is the length and the width of the
rectangle?
Perimeter:
Length:
Answer:
Width of the rectangle = 7 meters
Length of the rectangle = 12 meters
Step-by-step explanation:
Perimeter of a rectangle = 2(length + width)
Perimeter of the rectangle = 38 meters
Width of the rectangle = w
Length of the rectangle = w + 5
Perimeter of a rectangle = 2(length + width)
38 = 2{(w + 5) + w}
38 = 2(w + 5 + w)
38 = 2(2w + 5)
38 = 4w + 10
38 - 10 = 4w
28 = 4w
w = 28/4
w = 7 meters
Width of the rectangle = w
= 7 meters
Length of the rectangle = w + 5
= 7 + 5
= 12 meters
Help please i'll give you brainliest
5=10+n/6
5(6)=10+n(6)
30=10+n
-10 -10
Answer: sooooo....... the answer is n=20
Step-by-step explanation: did you really needed the answer for this?
Answer:
n = -30
Step-by-step explanation:
5 = 10 + n/6
-5 = n/6
n = -30
The expected value of a random variable X is 140 and the standard deviation is 14. The expected value of the random variable Y
Complete question :
The expected value of a random variable X is 140 and the standard deviation is 14. The standard deviation of the random variable Y=3X-10 is:
Answer:
42
Step-by-step explanation:
Standard deviation of Y = 3X - 10
The variance of Y
Var(Y) = Var(3X - 10)
Var(Y) = Var(3X) - Var(10)
10 is a constant :
Var(10) = 0
Hence,
Var(Y) = Var(3x)
SD(Y) = Var(Y) = Var(3X)
SD(Y) = SD(3X)
SD(Y) = 3SD(X)
SD(X) = 14
SD(Y) = 3 * 14
SD(Y) = 42
Edgenutiy which triangle is a 30 60 90
Answer:
yeah its a right triangle
Step-by-step explanation:
A group of students went on a field trip. The students were divided into 6 buses and each bus had less than 52 students. How many students went on the field trip?
Answer:
A maximum of 306
Step-by-step explanation:
You can estimate that since each bus had less than 52 students, that 51 were on each bus. 51 times 6=306
HELP ASAP !!!!Tracey is saving each month for new tires for her car. She plans to save $60 each month. Which table shows the amount Tracey has saved over the last several months?
Can you show a picture of the table?
Answer:
theres no pic but im am 100% sure its 720
Step-by-step explanation
multiply 60 x 12 = 720 if im wrong its not my fault there is no pic
what is the volume of a hemisphere with a diameter of 41.6m, rounded to the nearest 10th of a cubic meter
Explanation is in the file
tinyurl.com/wtjfavyw
Researchers conducted a study to determine whether the majority of community college students plan to vote in the next presidential election. They surveyed 650 randomly selected community college students and found that 55% of them plan to vote.
Which of the following are the appropriate null and alternative hypotheses for this research question?
A)
0: =0.50
: ≠0.50
B)
0: =0.50
: >0.50
C)
0: =0.55
: ≠0.55
D)
0: =0.55
: >0.55
Answer is:
B
Answer:
[tex]H_{0} = 0.5[/tex]
[tex]H_{a} > 0.5[/tex]
Option b
Step-by-step explanation:
Researchers conducted a study to determine whether the majority of community college students plan to vote in the next presidential election.
The null hypothesis is always an equalityu related to the expected, or tested value. In this question, the tested value is half of the students, a proportion of 0.5, that is: [tex]H_{0} = 0.5[/tex]
The alternate hypothesis is related to the test we are taking. In this question, we are testing if the majority of the students plan to vote, that is, if the proportion of the students that plan to vote is higher than 0.5. So [tex]H_{a} > 0.5[/tex]
So the correct answer is given by option B.
What is the factored form of this expression? 4x^2-12x+9
Answer:
(2x-3)^2
i hope its correct...
Step-by-step explanation:
Answer:
2x-3
Step-by-step explanation:
What is the median of this set of data?
362, 187, 211, 298, 331, 250, 347, 199
Answer:
274
Step-by-step explanation:
Hey There!
So if you didnt know the median is the middle number ( in value) of the set
So first we would like to arrange the numbers in order from least to greatest
187 , 199 , 211 , 250 , 298 , 331 , 347 , 362
Then we take the middle number(s)
if there is just one then that is the answer but if there is two than we add them together and divide that by 2
In this case there are two which would be 250 and 298
So we add them together
250+298=548
Then we just divide that by 2
[tex]\frac{548}{2} =274[/tex]
Therefore the median is 274
hope this helps :)
Step-by-step explanation:
l hope this answer is helpful to you
help me i am gonna give points to the people give me correct answer
Answer:
lol
Step-by-step explanation:
Answer:
Arjan should look for other cards that add up to $$94%
Step-by-step explanation:
I don't know it but I guess this one, let me know if it help
If a regression analysis shows an R factor of 0.15, it is safe to assume a perfect positive relationship between cost and volume. a strong negative relationship between cost and volume. a strong positive relationship between cost and volume. a very weak relationship between cost and volume.
Answer:
a very weak relationship between cost and volume
Step-by-step explanation:
The R factor is used to access the strength of the relationship between a dependent and independent variable. The R factor ranges between - 1 and 1. With negative values depicting a negative linear relationship and positive values meaning a positive relationship. The closer the R factor is to - 1 or + 1, the greater the strength, a value of 0 means, no correlation exists.
Hence, a R factor of 0.15 depicts a positive but very weak relationship between cost and volume as the R value is close to 0.
Tell whether c = 3 is a solution of c + 7 = 10.
a) Yes
b) No
Answer:
a) Yes
Step-by-step explanation:
Because, 3+7=10
Answer: yes
Explanation: In this problem, to determine whether c = 3
is a solution to the equation, we substitute 3 in for c.
So we have (3) + 7 = 10.
Simplifying the left side of the equation, (3) + 7 is 10.
So we have 10 = 10 which is a true statement so our answer is yes.
What's the value of x
(3x-5) and (x+10)
An elliptical table is being cut from a rectangular piece of wood that is 12 feet by 10 feet. Legs of the table will be
attached at the foci. Which equation models the largest ellipse that can be cut from the rectangle and describes
where the legs will be attached?
Answer:
B on edge
Step-by-step explanation:
just got it wrong
please help on everything
Answer:
2. = 24
3. = 6
4. = 30
5. = 15
6. = 8
7. = 40
8. = 14
9. = 60
10. = 9
11. = 40
10 less than a number n is 30
Answer:
n = 40
Step-by-step explanation:
n - 10 = 30
n = 10 + 30
n = 40
HOpe that helps!
The image shows the first parade float the students decorate.
What is the volume of the float?
Answer:
312 ft³
Step-by-step explanation:
4x4x6=96
12x6x3=216
96+216=312
Find the slope Y=5x+12
Answer: The slope = 5.
Step-by-step explanation:
The equation of a line in the slope -intercept form is given by :-
[tex]y=mx+c[/tex]
,where m= slope , c= y-intercept.
The slope of a line represents the rate of change of y with respect to x.
Given: Equation of line : Y= 5x+12
Here Slope (m)=5
Hence, the slope = 5.
Hi!
[tex]\spadesuit[/tex] We're given an equation in slope-intercept form:
[tex]\clubsuit~~~\Large\boldsymbol{y=mx+b} ~~~\clubsuit[/tex]
Where:
[tex]\diamondsuit~~~\large\boldsymbol{m- > slope}[/tex]
[tex]\diamondsuit~~\large\boldsymbol{b- > y-intercept}[/tex]
Notes:
Please remember that the slope is the coefficient of x (the number that comes just before x; in 5x, the coefficient of x is 5), and the y-intercept is added to or subtracted from the slope.Therefore,
[tex]\stackrel{\heartsuit}{\boxed{\boxed{\textsc{Answers:}\begin{cases}\bold{Slope:5}\\\bold{12}\end{cases}}}}[/tex]
Cheers!!I hope that the explanation helped you out! :D
If you need any explanation or clarification, please let me know!
Find the arithmetic series a=2 d=5 n=20 find Sn
Step-by-step explanation:
Sn=n/2{2a+(n-1)d}
=10(4+95)
=10(99)
=990
Find the difference f(x) - g(x) for functions f(x) = 6x^{2} + 2x -14 and g(x) = -x^{2} + 10x - 4
5x^{2} + 8x - 10
5x^{2} + 12x - 18
-7x^{2} + 12x - 18
7x^{2} - 8x - 10
Answer:
Your answer is the 4th one , 7xpower2 - 8 x - 10
12. Si R(x)=-5x2+x-2 y S(x)=-x - 3x, se
¿cuál es el resultado de R(x) + S(x) ?
Answer:
El resultado eres: [tex]R(x) + S(x) = -6x^2 - 2x - 2[/tex]
Step-by-step explanation:
Se dan las siguientes funciones
[tex]R(x) = -5x^2 + x - 2[/tex]
[tex]S(x) = -x^2 - 3x[/tex]
Cuál es el resultado de R(x) + S(x) ?
Se soman los fatores en comun. Entonces:
[tex]R(x) + S(x) = -5x^2 + x - 2 + (-x^2 - 3x) = -5x^2 + x - 2 - x^2 - 3x = -5x^2 - x^2 + x - 3x - 2 = -6x^2 - 2x - 2[/tex]
El resultado eres: [tex]R(x) + S(x) = -6x^2 - 2x - 2[/tex]
If YV = 28 in, find the length of the major arc VYX. Round to the nearest tenth ( one decimal place).
Answer:
[tex]VYX=84.3in[/tex]
Step-by-step explanation:
Given
[tex]YV = 28in[/tex]
[tex]\angle WZX = 15^\circ[/tex]
See attachment
Required
Determine the length of [tex]VYX[/tex]
First, calculate the major angle VZX
[tex]\theta = \angle VZX = 360 - \angle WZX[/tex]
[tex]\theta = \angle VZX = 360 - 15[/tex]
[tex]\theta = \angle VZX = 345[/tex]
[tex]\theta = 345[/tex]
The length of arc VYX, is:
[tex]L=\frac{\theta}{360} * 2\pi r[/tex]
Where
[tex]r = \frac{1}{2} * Diameter[/tex]
[tex]r = \frac{1}{2} * YV[/tex]
[tex]r = \frac{1}{2} * 28[/tex]
[tex]r = 14[/tex]
So:
[tex]L=\frac{\theta}{360} * 2\pi r[/tex]
[tex]L=\frac{345}{360} * 2 * \frac{22}{7} *14[/tex]
[tex]L=\frac{345}{360} * 2 * 22 *2[/tex]
[tex]L=\frac{345* 2 * 22 *2}{360}[/tex]
[tex]L=\frac{30360}{360}[/tex]
[tex]L=84.3in[/tex]
Hence, the length of VYX is:
[tex]VYX=84.3in[/tex]
(5x-6) = (2x+9)
7x=3
Answer:
5
Step-by-step explanation:
5x -6 = 2x +9
5x -2x = 9 +6
3x = 15
x = 5
a ladder is leaning up against a building. the bottom of the ladder is 6 feet from the building. the top of the ladder reaches the wall at a height of 8 feet. how long is the ladder?
The length of the ladder is [tex]x = \sqrt{100} =10 feet[/tex].
To find out the length of the ladder leaning against the building given the following conditions; bottom of the ladder is 6 feet from the building, and the top of the ladder reaches the wall at a height of 8 feet, the Pythagorean theorem can be utilized.
Therefore the length of the ladder is approximately 10 feet.
The Pythagorean theorem states that for a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
This can be expressed as:
[tex]c^2=a^2+b^2[/tex]
where c is the hypotenuse (the longest side of the triangle)
a and b are the other two sides
Given, the distance from the bottom of the ladder to the wall is 6 feet and the height from the ground to the top of the ladder is 8 feet.
Let the length of the ladder be x
According to the Pythagorean theorem:
[tex]x^2 = 6^2 + 8^2 x^2[/tex]
[tex]x^2 = 36 + 64x^2[/tex]
[tex]x^2 = 100[/tex]
Therefore the length of the ladder is [tex]x = \sqrt{100}= 10 feet[/tex].
For such more questions on length
https://brainly.com/question/30582409
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1) How many triangles will be formed by 13 matchsticks?
2) How many matchsticks will be needed to form 7 triangles?
Every week, Marla’s mom buys 15 liters of water at the supermarket. How many milliliters of water is this?
15,000
1,500
150
1000
Answer:
it is 15,000
Step-by-step explanation:
15,000 because there is 1,000 milliliters in one liters and 15 liters = 15,000 milliliters
Each side of a square piece of glass is 8 centimeters long. What is the piece of glass's area?
Answer:
area=l²
l=8
area=8²
=8×8
=64
The piece of glass's area is is 64 square cm.
What is the length of the square?Diagonals of a Square A square has two diagonals, they are equal in length and intersect in the middle.
The length of square is given by;
[tex]\rm Length =a^2[/tex]
Each side of a square piece of glass is 8 centimeters long.
The piece of glass's area is;
[tex]\rm Glass \ area=a^2\\\\ Glass \ area=8^2\\\\ Glass \ area=64[/tex]
Hence, the piece of glass's area is is 64 square cm.
Learn more about square length here;
https://brainly.com/question/11472698
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Given two terms of the arithmetic sequence a3=25 and a8=-10 find a1 and d
Answer:
Sorry I don’t know
Step-by-step explanation:
a3=25
a8=-10
first, a3=25 will be 25= a + (3-1)×d that is the formula of the Arithimetic function genrally→ an=a (which is the first term..that we wanted in this case) + n-1 (n is the order of wanted term..we already has the term which is 3) × d (the common ration).
So, 25=a+(3-1)×d
25=a+2d
25-2d=a rearrange
a= 25-2d
We will take this equation and subsitute it in the other equation which is -10=a+ (8-1)×d
so it will be -10=25-2d+(8-1)×d
-10= 25-2d+7d sum the d
-10= 25+5d
-10-25= 5d
-35=5d
-35/5=d
-7= d
Now that we have the d we can go back to the equation of a= 25-2d and know the value of a
a= 25-2×-7
a1=39
d=-7