Find the value of x pls help again XD
Answer:
B
Step-by-step explanation:
[tex]90 = 60 + 3x \\ 30 = 3x \\ x = 10[/tex]
Answer:
10
Step-by-step explanation:
A standardized value is a value found by which of the following?
I NEED HELP ASAP PLEASEE!!
Answer:
Positive
Step-by-step explanation:
h(x)=-2x^(2)+3x what is the value of h(-3)
Answer:
h(-3) = -27
Step-by-step explanation:
Given that,
[tex]h(x)=-2x^{(2)}+3x[/tex]
We need to find the value of h(-3).
Put x = -3 in the given expression.
[tex]h(-3)=-2(-3)^{(2)}+3(-3)\\\\=-2\times 9-9\\\\=-27[/tex]
So, the value of h(-3) is equal to -27.
Help help help plz plz
Answer:2nd i think i hope this helps ! :)
Step-by-step explanation:
Find the probability that a randomly chosen point is located within the shaded region. Write your answer as a decimal, and
round to the nearest thousandth, if necessary.
6
3
Probability
Answer:
[tex]Probability = 0.25[/tex]
Step-by-step explanation:
Given
The attached shape
Required
Probability of locating within the shaded region
First, calculated the area of the shaded region
[tex]A_1 = 0.5 * base * height[/tex]
Where
[tex]base = 8cm\\ height = 6cm[/tex] --- given
So:
[tex]A_1 = 0.5 * 8cm* 6cm[/tex]
[tex]A_1 = 24cm^2[/tex]
Next, calculated the area of the complete rectangle
[tex]A_2 = Length* Width[/tex]
Where
[tex]Width = 12cm\\ Length = 8cm[/tex] --- given
So:
[tex]A_2 = 12cm * 8cm[/tex]
[tex]A_2 = 96cm^2[/tex]
The required probability is:
[tex]Probability = \frac{A_1}{A_2}[/tex]
[tex]Probability = \frac{24cm^2}{96cm^2}[/tex]
[tex]Probability = 0.25[/tex]
Challenge A bag contains pennies, nickels, dimes, and quarters. There are 50 coins in all. Of the coins, % are pennies and % are dimes. There are more nickels than pennies. How much money does the bag contain?
The bag contains $
Answer:
.
10% of 50 coins is/are 5 coins. So, 5 coins are pennies.
40% of 50 coins is/are 20 coins. So, 20 coins are dimes.
The number of nickels is (5 + 9) = 14, according to the condition.
Then quarters are the rest (50 - 5 - 20 - 14) = 11 coins.
Now you can easily calculate the total and answer the question
Total = 5*1 + 14*5 + 20*10 + 11*25 = 550 cents = $5.50. ANSWER
Step-by-step explanation:
Write the phrase, 6 divided by p, as an algebraic expression
divisiond i v i s i o n
6p6 over p
p6
Answer:
p/6 division
Step-by-step explanation:
What is AC?
I NEED HELP!!!!
Answer:
its a i belive
Step-by-step explanation:
There are 92 students in a chemistry class. The instructor must choose two students at random. Students in a Chemistry Class Academic Year Chemistry majors non-Chemistry majors Freshmen 15 15 Sophomores 13 9 Juniors 2 10 Seniors 12 16 What is the probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random
Answer:
0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Probability that a sophomore non-Chemistry major
Out of 92 students, 9 are non-chemistry major sophomores. So
[tex]P(A) = \frac{9}{92}[/tex]
Then a junior non-Chemistry major are chosen at random.
Now, there are 91 students(1 has been chosen), of which 10 are non-chemistry major juniors. So
[tex]P(B) = \frac{10}{91}[/tex]
What is the probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random
[tex]P = P(A)*P(B) = \frac{9}{92}*\frac{10}{91} = \frac{9*10}{92*91} = 0.0108[/tex]
0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.
Sales total : $19.000
Commission: 4.5%
What is the total amount paid?
Please do not put a link in they don’t work
Answer:
855
Step-by-step explanation:
please help!!
A hot-air balloon is rising straight up from a level field at a constant rate. This balloon is tracked by a range finder located on the ground 496feetfrom the lift-off point. At the moment the elevation angle from the range finder to the balloon is 0.875radian, this elevation angle is increasing at the rate of 0.225 radianper minute. At what rate is the distance between the range finder and the balloon changing when the elevation angle is 0.875 radian? Keep 3decimal places in your final answer
Answer:
46.091 m
Step-by-step explanation:
Given that
Height of the range finder, = 496 feet
Angle of elevation, θ = 0.875 Rad = 50°
Velocity of increment, = 0.225 rad/min
For starters, we try and assume that it all takes place in a triangular shape. Using Pythagoras theorem, we then know that
Tanθ = y / 496
y = 496 tanθ
On differentiating, we have
dy/dt = 496 sec²θ
dy/dt = 496 * 0.413 * de/df
dy/dt = 204.848 * de/df
dy/dt = 204.848 * 0.225
dy/dt = 46.091 m
A spinner is divided into many sections of equal size. Some sections are red, some are blue, and the remaining are green. The probability of the arrow landing on a section colored red is 12/20. The probability of the arrow landing on a section colored blue is 6/20. What is the probability of the arrow landing on a green-colored section?
Answer:
2/20
Step-by-step explanation:
12 + 6 is 18 so then your remaining would be 2 so your answer should be 2/20!
Answer:
[tex]\frac{2}{20}[/tex]
Step-by-step explanation:
We have 3 sections.
[tex]\frac{12}{20}[/tex][tex]\frac{6}{20}[/tex][tex]\frac{x}{20}[/tex]Since we only have 3 sections, we can add red and blue, and subtract [tex]\frac{20}{20}[/tex]
[tex]\frac{12}{20} + \frac{6}{20} = \frac{18}{20}[/tex]
Subtract:
[tex]\frac{20}{20}-\frac{18}{20} = \frac{2}{20}[/tex]
What's the expanded notation of 5.34
Harry’s soccer team plays 2 nonconference games for every 3 games that they play against conference opponents. If y represents the number of nonconference games and x represents the number of conference games, which equation best models this proportional relationship?
y = two-thirds x
y = three-halves x
y = 2 x
y = 6 x
Answer:
C. y=three-halves
Step-by-step explanation:
Answer:
I'm Pretty sure the answer is y=two-thirds x
Step-by-step explanation:
i need help right now asap.....
Answer:
66+90+x=180
so x is = 180-156=24
Answer:
24°
Step-by-step explanation:
The answer is 24 ° because you can tell based off of the ∠ACD that it is a 90 ° angle and you can tell that line AD and line AB are perpendicular which means that they form two 90 ° angles. You know that ∠DCE is 66 ° meaning that the rest of the right angle must be 24 °.
Susan works at the local Department store. She makes a 2% commission on all sales. She sells jewelry worth $20,000. What is her commission
Answer:
I think it's 2000
Step-by-step explanation:
System A
System B
- 3x + 12y = 15
-x+ 4y = 5
7x - 10y = -2
7x– 10y = -2
1) How can we get System B from System A?
Answer:
The answer should actually be option C, replace one equation with a multiple of itself. Then for the second question the answer is A, Yes.
Step-by-step explanation:
Did it on Kahn Academy and these were the right answers, hope this helps! ♥
Answer:
khan
Step-by-step explanation:
Hellllllpppppp meeee plzzzzz
A rectangular resort pool has a length of 45 feet and a width of 30 feet. A sitting area is attached to the pool and is in the shape of a semicircle with a diameter of 20 feet, as shown below. If the pool is filled to a depth of 5 feet and the sitting area is filled to a depth of 2.5 feet, approximately how much water is contained in both the sitting area and the pool?
Athletic Outfitters packs tennis balls into a cylinder with a diameter of 9.6 centimeters and a height of 39.5 centimeters. Each tennis ball has a diameter of 9.5 centimeters and there are 4tennis balls in each container. Approximately how much extra space is in the container?
Answer:
1 7142.699082ft³ (C)
2 1063.420642cm³ (A)
Step-by-step explanation:
Hey There!
1. So for the first one we want to find the volume of the rectangular pool and the volume of the semi cylinder
The dimension given are
length - 45
width - 30
height - 5
to find the volume we use
[tex]V=lwh[/tex]
[tex]45*30=1350\\1350x5=6750[/tex]
so the volume of the rectangular pool is 6750ft³
now we need to find the volume of the semi cylinder
the dimensions given are
diameter - 20
height - 2.5
so we find the volume by using the volume for a cylinder then dividing by 2
the volume for a cylinder formula is
[tex]V=\pi r^2h[/tex]
r = radius
h = height
to find the radius given the diameter we just divide by 2
20/2=10 so the radius is 10
now we just plug in the values and get
[tex]V=\frac{1}{2} \pi 10^22.5[/tex]
Note: the 1/2 is added because were finding the volume of a semi cylinder
[tex]10^2=100\\100(2.5)=250\\250\pi =785.3981634\\\frac{785.3981634}{2} =392.6990817[/tex]
So the volume of the sitting area is 392.6990817
Now that we have found the volume of each part we add them together to get the answer
[tex]392.6990817+6750=7142.699082[/tex]
2. For the second one we need to find the volume of the cylinder and subtract it by the volume of the tennis ball..s times 4 ( because there are 4 of them)
For the cylinder we are given the dimensions
height - 39.5
diameter - 9.5
Remember this is the formula of the volume of a cylinder
[tex]V=\pi r^2h[/tex]
r =radius
h = height
to convert diameter to radius we divide by 2
9.5/2=4.75
now we plug in the values
[tex]V=\pi 4.75^239.5\\4.75^2=22.5625\\22.565(39.5)=891.21875\\891.21875\pi =2859.100642[/tex]
so the volume of the container is 2859.100642cm³
now we need to find the volume of the tennis ball
to do this we use the formula
[tex]V=\frac{4}{3} \pi r^3[/tex]
we are given the dimensions of
diameter - 9.5
once again to convert to radius we divide by 2
9.5/2=4.75
now we plug in the values
[tex]V=\frac{4}{3} \pi 4.75^3\\4.75^3=107.171875\\107.171875\frac{4}{3} =142.8958333\\142.8958333\pi =448.9205002\\448.9205002(4)=1795.682001[/tex]
So the volume of the tennis bal...ls is 1795.682001
note: i multiplied by 4 because there are 4 tennis bal...ls
our final step is to subtract the volume of the bal...ls from the container
2859.100642-1795.682001=1063.420642
hope this helps :)
I need help finding the perimeter to this shape, show your work so I can understand thanks
Step-by-step explanation:
there you go hope this helps you
...i dont know the answer
What is m
45’
80’
125’
135’
Answer:
it 125 I just worked it out
What expression represents the volume of the cone, in
cubic units?
xx 3
O 2013
O 47x3
Answer:
A.
Step-by-step explanation:
Volume of a cone = ⅓πr²h
Where,
r = x
h = 2x
Plug in the values into the formula for volume
Volume = ⅓*π*x²*2x
Volume = ⅓*π*2x³
Volume = (1*π*2x³)/3
Volume = [tex] \frac{2\pi x^3}{3} [/tex]
[tex] \frac{2}{3}\pi x^3 [/tex]
If this set of points was graphed on a coordinate system, the graph would pass the Vertical Line
Test.
{(5,7), (2,1), (4,0), (-1,7), (3,9), (-6,-2)}
True
False
Find two integers whose sum is 11 and product is 18
Answer:
9,2 and 2,9
Step-by-step explanation:
x+y=11
xy=18
Since they are asking for integers you can simply look through and see what integers multiply out to 18 and then check if they add up to 11. The answers for x and y are 9 and 2. but 9 can be for y as well and 2 can be for x.
How to solve it algebraically
18/y=x
x+y=11(insert 18/y for x)
18/y+y=11(factor it)
(y^2+18)/y=11(multiply both sides by y)
y^2+18=11y (subtract both sides by 11y)
y^2-11y+18=0
complete the square
y^2-11y = -18
(-11/2)^2=121/4 (add in on both sides)
y^2-11y+121/4=49/4
(y-11/2)^2=49/4 (square root both sides)
y-11/2=±7/2
y=11/2±7/2
y=9 or y=2
so
x=9 or x=2
Hope this helps :)
Please give brainliest
What is the measure of the exterior angle shown in the figure below?
Answer:Measures of Exterior Angles
They are formed on the outer part, that is, the exterior of the angle.
The corresponding sum of the exterior and interior angles formed on the same side = 180°.
Step-by-step explanation: is that what u mean?
1. Rectangles, parallelograms and kites have two sets of parallel lines.
Answer:
True
Step-by-step explanation:
Answer:
true
Step-by-step explanation:
Politics Post has published a total of 15 articles this month. If 12 of the articles are about candidates for an upcoming election, what percent of the articles are about candidates?
Answer:
80%
Step-by-step explanation:
12÷15= .8
.8=80%
..............
True or False? A circle could be circumscribed about the quadrilateral below. c 80° A. True 95° B. False 85°
Answer:
False
Step-by-step explanation:
The circle could be circumscribed about the quadrilateral is false because the sum of the opposite angles is not 180 degrees.
What is quadrilateral?It is defined as the four-sided polygon in geometry having four edges and four corners. Two pairs of congruent sides, and it has one pair of opposite congruent angles.
As we know, the circle can be circumscribed around a quadrilateral if and only if the quadrilateral's opposite angles add up to 180 degrees.
But,
80 + 85 < 180
100 + 95 > 180
Thus, the circle could be circumscribed about the quadrilateral is false because the sum of the opposite angles is not 180 degrees.
Learn more about the quadrilateral here:
brainly.com/question/6321910
#SPJ2
write an expression that is equivalent to (3+14)+27
Answer: 44
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