A passenger train has tickets available for 12 window seats and 8 aisle seats. The next person to buy a ticket will be randomly assigned to one of
those seats. What is the probability that the next person will be assigned to an aisle
seat?
Answer:
2/5
Step-by-step explanation:
There is an 8/20 chance that the next person will receive a window seat. You simplify that probability to get your answer. 8/20 becomes 2/5. So the answer is 2/5.
Please help me for question 12.
Answer:
79°
Step-by-step explanation:
its a right angled triangle so the unknown is 90°
180 - (90 + 11)
PLEASE HELP I"LL GIVE YOU BRAINLY!!!!
Answer:
-2f(x)
5.5f(x)-1
and 7f(x)
Step-by-step explanation:
Calculate the net profit margin for a
lamp sold for $80 that has a $50 cost
of goods sold and 20% operating
expenses.
A. 28%
B. 18%
C. 25%
D. $14
Brainly reward!!!!
What's the area of the gray shape?
Natasha has a bag of 25 gift bows: 6 white, 5 gold, 4 red, 7 blue, 2 green, and 1 pink.
If Natasha picks bows at random, what percent chance is there that the first two gifts
she wraps will have a white bow?
Answer:
24%
Step-by-step explanation:
6/25=0.24
0.24=24%
simplify -(7)+(-6)+5(-2)-3
[tex]\large\textsf{-(7) + (-6) + 5(-2) - 3 }[/tex]
[tex]\large\textsf{-7 - 6 = -13}[/tex]
[tex]\large\textsf{-13 + 5(-2) - 3}[/tex]
[tex]\large\textsf{5(-2) = -10}[/tex]
[tex]\large\textsf{-13 - 10 = -23}[/tex]
[tex]\large\textsf{-23 - 3}[/tex]
[tex]\large\textsf{= -26}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \huge \bf -26}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
−(7)+(−6)+5(−2)−3
Subtract 6 from −7 to get −13.
−13+5(−2)−3
Multiply 5 and −2 to get −10.
−13−10−3
Subtract 10 from −13 to get −23.
−23−3
Subtract 3 from −23 to get −26.
−26
Find the perimeter of the parallelogram.
Answer:
14 cm
Step-by-step explanation:
3 + 3 + 4 + 4 = 14
Answer:
it's (4+3)x2 so the answer is 14cm.
You need to score a 90 or higher on your next test to make the honor roll. If x represents the score on your next test, which inequality represents the situation?
x > 90
x< 90
x ≥ 90
x ≤ 90
Answer:
x ≥ 90
Step-by-step explanation:
it says 90 or higher which also means "at least 90", which means greater than or equal to 90.
I need help with my math
Answer:
16
Step-by-step explanation:
The formula for finding the length of a side of a right triangle is:
A^2 + B^2 = C^2 (c being the hypotenuse.)
We know what the length of the hypotenuse and one of the legs is, so we can solve by taking B^2 (the leg measuring 12) and subtracting it from C^2 (the hypotenuse) and then finding the square root of C^2.
20^2 - 12^2 = 256
or in simpler terms
20^2 - 144 = 256
Then, if we find the square root of 256 we get 16. We can check our work by substituting it back into the equation
16^2 + 12^2 = 20^2
or in simpler terms
256 + 144 = 400
So the length of the missing leg is 16. I hope this helps :)
Answer:
C. 16
Step-by-step explanation:
In order to find one side of a right triangle, given two sides, you can use the Pythagorean theorem: [tex]A^2+B^2=C^2[/tex]
We already have the values of one of the bases (12) and the hypotenuse (20), so we are looking for the second base. So, we have the values of B and C, and we need to find A.
To find A, put the values you already have into the formula as follows:
[tex]A^2+12^2=20^2[/tex]
Next, square each value:
[tex]A^2+144=400[/tex]
Subtract 144 from 400 to simplify the equation.
[tex]A^2=256[/tex]
And finally, find the square root of 256 to find A.
[tex]A=16[/tex]
Final answer:
C. 16
Have a nice day!
Find the value of the marked angles in each of the following ( see image ).
Please show workings.
The only given angles are 62° and 85°.
The angle to look for is marked by “))”
Answer:
(180-62)
118
180-118=62
180-85=95
180-(62+95)
180-157
23
Answer:
23°Step-by-step explanation:
The inscribed is the cyclic quadrilateral.
The opposite angles are supplementary in cyclic quadrilaterals.
The angle opposite to 85° is:
180° - 85° = 95°The missing angle of the triangle is:
180° - (62° + 95°) = 23°A rectangle is 10 cm by 13 centimeters. If each dimension is increased by the same amount, find the dimensions of a new rectangle whose area is 50 square centimeters more than the original rectangle.
Answer:
10 by 18
Step-by-step explanation:
The coordinate grid shows points P, Q, R, and S. All the coordinates for these points are integers. What is the value of the x-coordinate of point P?
Answer:
The answer is "-6".
Step-by-step explanation:
Please find the graph file in the attachment file.
Given points:
[tex]P\to ( -6, 2 )\\\\\ Q\to ( -3, -4 )\\\\ R\to ( -1, 7 )\\\\ S\to ( 4, -5 )[/tex]
and the x- coordinate of point P is "-6".
Answer:
-6
Step-by-step explanation:
an equivalent expression for 50 – 35x.
Answer:
the answer would be 5(10-7x)
Step-by-step explanation:
factors 5 out of 50-35x
hope this helps.
correct me if I'm wrong
have a good afternoon.
Triangle QRS has coordinates Q(-2, -2), R(0, 3), and S(4, -2) and is dilated by a scale factor of 2. Determine the new coordinates of point S', and state whether the dilation is an enlargement or a reduction
Given:
Triangle QRS has coordinates Q(-2, -2), R(0, 3), and S(4, -2) and is dilated by a scale factor of 2.
To find:
The new coordinates of point S', and state whether the dilation is an enlargement or a reduction.
Solution:
If a figure is dilated by factor k with origin as center of dilation, then
[tex](x,y)\to (kx,ky)[/tex]
Where, 0<k<1 is reduction and k>1 is enlargement.
The figure is dilated by scale factor 2 which is greater than 1, so the dilation is an enlargement. The rule of dilation is:
[tex](x,y)\to (2x,2y)[/tex]
Using this rule, we get
[tex]S(4,-2)\to S'(2(4),2(-2))[/tex]
[tex]S(4,-2)\to S'(8,-4)[/tex]
Therefore, the new coordinates of point S' are (8,-4).
Find the slope of the line that passes through the points
(7, 2) and (11,9).
Answer:
7/4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(9-2)/(11-7)
m=7/4
Q. Which equation describes the line that passes
through the point at (-2, 1) and is perpendicular
to the line y = 1/3x + 5?
Answer:
Step-by-step explanation:
perp. -3
y - 1 = -3(x + 2)
y - 1 = -3x - 6
y = -3x - 5
urm so i have a test on Friday and i have to get all of my worked turned in. can someone help me please i'm stuck nd don't understand one bit.
Answer:
have you tried to use the tutor feature on this app, or ask someone in your family or someone in your school?
Answer:
a = 3.4641 = 2√3
What’s the missing side length
WILL GIVE BRAINLIEST!
Translate the Algebraic Expression
Five times the sum of twice a number, x, and five is twenty-five.
Answer:
5(2x+5) = 25
Step-by-step explanation:
Step-by-step explanation:
5 (2x + 5) = 25
Hope this helps!!
Create a real life example that can be modeled by the expression –2 • 4.
Answer:
Some one buys an apple that costs two dollars out of there pocket fours times.
Step-by-step explanation:
Solve each equation: -5(5x+5)+3(5x+3)=-4x-6x
Answer:
x= -1.118
Step-by-step explanation:
Firstly you need to start with the bracket
-5(5x +5) + 3(5x +3)
=( -25x +25) + (15x +9)
= -25x +25 +15x +9= -4x -6x
secondly you join the like terms together
25+9= -4x -6x +25x -15x
34= -38x
-38x ÷ 34
x= -1.118
The volume of 2 spheres have a ratio of 27:125. what is the ratio of their areas
Answer:
the ratio is 9: 25
Step by step calculation:
[tex] \sqrt[3]{125} = 5 \\ 5 {}^{2} = 25 \\ \sqrt[3]{27} = 3 \\ 3 {}^{2 } = 9 \\ [/tex]
Similar polygons
10 points!!
Answer:
7
Step-by-step explanation:
if the stick is 7.5 divide that by 3 and you get 2.5 so divide 17.5 by 2.5 and you get 7 .
Function r represents the money collected from members in the club as a function of m, the number of members.
Is 2.78 a possible input?
Answer: yes
Step-by-step explanation: because it can be a possibility of how much the m members gave money to you
Can you find the volume of a cone if you don’t know the height or radius?
Answer:
no no no no you just can't ggfgrgrgtghfhththhehfhrhrhthgtvtbth had to get 20 words
Could anyone help me with this question? Thank you!
Answer:
C
Step-by-step explanation:
We want to simplify the rational expression:
[tex]\displaystyle \frac{n^4-11n^2+30}{n^4-7n^2+10}[/tex]
First, we can factor both the numerator and the denominator. This yields:
[tex]\displaystyle =\frac{(n^2-6)(n^2-5)}{(n^2-2)(n^2-5)}[/tex]
Cancel like terms:
[tex]\displaystyle =\frac{(n^2-6)}{(n^2-2)}[/tex]
However, since we canceled a term from our expression, we must place restrictions in order to stay true to the original expression.
Rational expressions are undefined whenever the denominator equals 0. The denominator is (before canceling):
[tex](n^2-2)(n^2-5)=0[/tex]
Solve for n. By the zero product property:
[tex]n^2-2=0\text{ and } n^2-5=0[/tex]
Therefore:
[tex]n^2=2\text{ and } n^2=5[/tex]
By taking the square root of both sides (since we are taking an even root, it is required to have plus/minus):
[tex]n=\pm\sqrt{2}\text{ and } n=\pm\sqrt5[/tex]
Therefore, our fully simplified expression is:
[tex]\displaystyle \frac{n^2-6}{n^2-2}\, ,n\neq \pm\sqrt5, \pm\sqrt2[/tex]
Hence, our answer is C!
The speed of trains from New York to Boston was increased by
20% to 60 miles per hour. What was the speed of the trains
before the increase?
Answer:
48
Step-by-step explanation:
First, we find 20% of 60. That is 12. Then we subtract 12 from 60, making 48.
Factor the polynomial: –3x^4 – 9x^3 + 15x^2
Answer:-3x^2(9x^5-5)
Step-by-step explanation:
Step-by-step explanation:
-3x2(x2)-9x3+25x2
-3x2(x2+3x-5)
A rectangle is shown on the graph.
What is the approximate length of the diagonal ? Round to the nearest tenth.