Answer: Choice B) [tex]\sqrt{63}[/tex]
========================================================
Explanation:
Let's rewrite the given expression like so
[tex]3\sqrt{y+3}=\sqrt{3^2}\sqrt{y+3}\\\\3\sqrt{y+3}=\sqrt{9}\sqrt{y+3}\\\\3\sqrt{y+3}=\sqrt{9(y+3)}\\\\[/tex]
We can see that the radicand is a multiple of 9 since 9 is a factor.
This immediately rules out choices C and D because 75 and 84 are not multiples of 9.
-------------
Plug in the smallest positive integer (1) for y to get
[tex]\sqrt{9(1+3)}=\sqrt{9(4)} = \sqrt{36}\\\\[/tex]
The radicand 36 is larger than the radicand for choice A (18), meaning we can rule out choice A. There's no way to get a radicand of 18 since y = 1 is the smallest we can go for.
We can however get to 63 by using y = 4
[tex]\sqrt{9(4+3)}=\sqrt{9(7)} = \sqrt{63}\\\\[/tex]
Showing that choice B is of the form [tex]3\sqrt{y+3}[/tex] where y is a positive integer, specifically when y = 4.
A triangular prism has a triangular end with a base of 9 inches and a height of 7 inches.
The length of each side of the triangle is 9 inches and the width of the entire prism is 7 inches.
What is the surface area of the prism?
HELP
Answer:
259.15
Step-by-step explanation:
Explain how to use basic facts and number patterns to find 5600%7
Answer:
600.
Well, to divide these numbers, we can use certain strategy that fits with out logic. For example, we know that 56 divided by 7 can be done mentally, because it's a simple division that can be immediately solved.
So, 56 divided by 7 is 8, then we add the two zeros to the quotient, because we isolated the first to digit to make the division easier and then we have to add back those zeros.
Therefore the division results in 600.
There are several operations that can be done by using certain strategy, like separating the number in easier parts like we did this time.
Tina and Sam are eating from the same pizza Tina eats 1/4 of the pizza and Sam eats 1/2 of the pizza how much of the pizza did they eat together
Step-by-step explanation:
The amount of pizza Tina eat
[tex] = \frac{1}{4} \\ [/tex]
The amount of pizza Sam eat
[tex] = \frac{1}{2} \\ [/tex]
The amount of pizza they eat together
[tex] = \frac{1}{2} + \frac{1}{4} \\ [/tex]
[tex] = \frac{1}{2} \times \frac{2}{2} + \frac{1}{4} \times \frac{1}{1} \\ [/tex]
[tex] = \frac{2}{4} + \frac{1}{4} \\ [/tex]
[tex] = \frac{2 + 1}{4} \\ [/tex]
[tex] = \frac{3}{4} \\ [/tex]
What is the value of b?
Answer:
24
Step-by-step explanation:
In triangle STU, line VT bisects angle STU.
-> By angle bisector theorem:
[tex] \frac{67}{2b} = \frac{67}{b + 24} \\ \\ \implies \: \frac{1}{2b} = \frac{1}{b + 24} \\ \\ \implies \: 2b = b + 24 \\ \\ \implies \: 2b - b = 24 \\ \\ b = 24[/tex]
The value of b is 24
What is angle bisector theorem ?
If we consider a triangle TSU, Let the angle bisector of angle T intersect side SU at a point V between S and U. The angle bisector theorem states that the ratio of the length of SV to the length of VU is equal to the ratio of the length of ST to the length of TU.
i.e. [tex]\frac{|SV|}{|VU|}=\frac{|ST|}{|TU|}[/tex]
How to find the value of b ?Here, given that, SV = 2b, VU = b+24, ST = TU = 67
∴ [tex]\frac{|SV|}{|VU|}=\frac{|ST|}{|TU|}[/tex]
⇒ [tex]\frac{2b}{b+24}=\frac{67}{67}[/tex]
⇒ [tex]\frac{2b}{b+24}=1[/tex]
⇒ 2b = b+24
⇒ b = 24
Hence, b = 24
Learn more about Angle bisector theorem here :
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What is Y equals 3X +20
Answer:
y = 3x + 20
This is an equation, in slope-intercept form, which represents a the placement of a line. The 3 in the equation represents the slope of the line, and the 20 represents the y-intercept.
You pick a card at random
1) What is P(3)? ?
Answer:
probability=events over the sample space
Step-by-step explanation:
i need help with my homework
Answer:
B
Step-by-step explanation:
every length of a connection between 2 points is the Hypotenuse of right-angled triangle created by the x- and y-coordinate differences of the points.
and Pythagoras is the best way to cancer the length of such a Hypotenuse.
AD² = 2² + 2² = 8
AD = sqrt(8)
AB = AD
BC² = 4² + 2² = 16 + 4 = 20
BC = sqrt(20)
CD = BC
so, the perimeter is
AD + AB + BC + CD = 2×sqrt(8) + 2×sqrt(20) =
= 14.60112616... units ≈ 14.6 units
pls i need the answer rightnow pls pls pls im begging you pls
Answer:
20 -- 300 words
25 -- 600 words
30 -- 900 words
35 -- 1200 words
40 -- 1500 words
50 -- 2100 words
3) 600 words
4) 2100 words
5)No because the formula only accounds for ages between 20 and 50 months.
Brainliest would be appreciated
Step-by-step explanation:
I don’t understand, can anyone help me?
Answer:
Step-by-step explanation:
If x = 0, f(x) = -15.
If f(x) = 27, x = 3.
Find the domain {(1,8), (5,3), (7,6), (2,2), (8,4), (3,9), (5,7)}
Answer:
domain is just all of the x values while range is all of the y values
so domian is
1,2,3,5,7,8
there are 2 5's but you only put 1
never put two of the same number for range or domain
Step-by-step explanation:
Makayla leans a 26-foot ladder against a wall so that it forms an angle of 69^{\circ} ∘ with the ground. What’s the horizontal distance between the base of the ladder and the wall? Round your answer to the nearest tenth of a foot if necessary.
The base of the ladder and the wall forms a right triangle
The horizontal distance between the base of the ladder and the wall is 9.3 feet
How to determine the horizontal distance?The given parametes are:
Angle = 69 degrees
Length of the ladder (l) = 26 feet
The horizontal distance (h) is calculated using the following cosine ratio
cos(θ) = h/l
Substitute known values
cos(69) = h/26
Make h the subject
h = 26 * cos(69)
Evaluate the product
h = 9.3
Hence, the horizontal distance between the base of the ladder and the wall is 9.3 feet
Read more about right triangles at:
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Consider the sequence below:
-9, -6, -1, 6, 15 …
What is the 8th term of the sequence?
What is the area of this figure?
Answer:
Area=length×width
=12m×15m
=180m
so,the area is 180.
hope it helps!
The average high temperature was 86° in august then 93° in September. What is the percent increase or decrease
The area of the circle
The area of the circle formula --> [tex]\pi r^2[/tex]
[tex]\pi[/tex] ≈ 3.14r: length of radius --> 7kmLength of radius is half of diameter which is 14km long
[tex]Area = \pi r^2=\pi (7km)^2=(49\pi )km^2=153.86km^2[/tex]
Hope that helps!
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
Let's find the Area of given circle ~
Area of circle is :
[tex] \qquad \tt \dashrightarrow \: \pi{r}^{2} [/tex]
where, r = radius
[tex] \tt r = d/2 = 14/2 = 7 km [/tex]Now, let's calculate it ~
[tex] \qquad \tt \dashrightarrow \: a = \pi{}^{}×(7)² [/tex]
[tex] \qquad \tt \dashrightarrow \: a = 49\pi{}^{}km² [/tex]
That's the answer I terms of π, but we can also plug in the appropriate value of pi as 3.14
[tex] \qquad \tt \dashrightarrow \: a=49\times 3.14{}^{} [/tex]
[tex] \qquad \tt \dashrightarrow \: a= 153.86 \: \: km²[/tex]
[tex] \qquad \tt \dashrightarrow \: area \approx 154\: \: km²[/tex]
What is the solution to the following system?
(3x+2y+z = 20
X-4y-Z=-10
2x+y + 2z = 15
Answer:
x = 4; y = 3; z = 2
Step-by-step explanation:
3x + 2y + z = 20
x - 4y - z = -10
2x + y + 2z = 15
6x + 4y + 2z = 40
x - 4y - z = -10
-------------------------
7x + z = 30
x - 4y - z = -10
8x + 4y + 8z = 60
----------------------------
9x + 7z = 50
z = 30 - 7x
9x + 7(30 - 7x) = 50
9x + 210 - 49x = 50
-40x = -160
x = 4
z = 30 - 7(4)
z = 2
2x + y + 2z = 15
2(4) + y + 2(2) = 15
y = 3
x = 4; y = 3; z = 2
What's the height of a triangle if we know the base is 20 m and the area is 100 m2? Question 1 options: 5 m 25 m 15 m 10 m
height = 10m
hope it helps...!!!
PLEASE HELP PYTHAGOREAN THEOREM
Answer:
[tex]\sqrt{193}\\[/tex]
Step-by-step explanation:
Therom: A^2+B^2=C^2
12^2=144
7^2=49
144+49=193
√193 since we squared 12 and 7
Hope this helps you and please mark me brainliest!
NO LINKS!!!
Find the indicated side for each triangle below:
Problem 5
Apply the Law of Sines
s/sin(S) = r/sin(R)
s/sin(78) = 10/sin(48)
s = sin(78)*10/sin(48)
s = 13.162274
Answer: 13.162274 approximately=============================================================
Problem 6
Use the Law of Sines here as well.
x/sin(X) = y/sin(Y)
x/sin(53) = 6/sin(22)
x = sin(53)*6/sin(22)
x = 12.791588
Answer: 12.791588 approximatelyAnswer:
Sine Rule
[tex]\sf \dfrac{a}{sinA}=\dfrac{b}{sinB}=\dfrac{c}{sinB}[/tex]
(where A, B and C are the angles and a, b and c are the sides opposite the angles)
Question 5
[tex]\sf \implies \dfrac{s}{sin(78)}=\dfrac{10}{sin(48)}[/tex]
[tex]\sf \implies s=\dfrac{10sin(78)}{sin(48)}[/tex]
[tex]\sf \implies s=13.16227426[/tex]
s = 13.2 (nearest tenth)
Question 6
[tex]\sf \implies \dfrac{x}{sin(53)}=\dfrac{6}{sin(22)}[/tex]
[tex]\sf \implies x=\dfrac{6sin(53)}{sin(22)}[/tex]
[tex]\sf \implies x=12.79158761[/tex]
x = 12.8 (nearest tenth)
Write the following in words in international system with comas:
34407615
Answer:
34,407,615
Explanation : 34 millions 407 thousands 615
Help picture below problem 10
Answer:
E. APR
I hope this is what u want because I didn't quite get it is it like name the angle as like acute or obtuse or what
Margin of error: 0.005 ; confidence level: 96%; p^ and q^ unknown
Using the z-distribution, it is found that the minimum sample size required is of 42,190.
What is a confidence interval of proportions?A confidence interval of proportions is given by:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which:
[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.The margin of error is given by:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In this problem, we have a 96% confidence level, hence[tex]\alpha = 0.96[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.96}{2} = 0.98[/tex], so the critical value is z = 2.054.
As for the other parameters, we have that M = 0.005 and [tex]\pi = 0.5[/tex], as there are no estimates of the proportion. Hence, we solve for n to find the minimum sample size.
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.005 = 2.054\sqrt{\frac{0.5(0.5)}{n}}[/tex]
[tex]0.005\sqrt{n} = 2.054(0.5)[/tex]
[tex]\sqrt{n} = \frac{2.054(0.5)}{0.005}[/tex]
[tex](\sqrt{n})^2 = \left(\frac{2.054(0.5)}{0.005}\right)^2[/tex]
[tex]n = 42189.16[/tex]
Rounding up, the minimum sample size required is of 42,190.
More can be learned about the z-distribution at https://brainly.com/question/25890103
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each model with the square root equation it represents.
In a parking lot there are only white cars, green cars, and red cars. If one car is selected at random from
the lot, the probability that the selected car would be a green car is 1/6, and the probability that it would
be a red car is 1/8. What is the probability that it would be a white car?
Answer:
17/24 chance for white car
Step-by-step explanation:
We know that there is a 1/6 chance that it will be green and 1/8 that it will be red so whatever's left has to be white. We can just add the fractions that we have and subtract them from one to get the probability of getting a white car.
1/6+1/8=?
Find the lowest common denominator (24)
4/24+3/24=7/24
Subtract it from 1
24/24-7/24=17/24
17/24 chance that it's white
Select all the fractions that are equivalent to each other.
(Choose 2)
[tex]hi \\answer \\the \\question[/tex]
Answer: You should try to multiply and divide try then question me back. But the answers are neither of them.
Step-by-step explanation:
If a circle has a diameter of 11.5 feet, what is the area?
Answer:
103.87 ft.
In this case, area equals [tex]\pi r^2[/tex]
The diameter is [tex]2r[/tex]
But before worrying about anything else, we must start the problem. Let's do that now.
The first step is to find the broken-down form of the area.
A = [tex]\frac{1}{4} \pi d^2[/tex]
Next, break this equation into a solvable definition.
[tex]\frac{1}{4} * \pi * 11.5[/tex]
Lastly, solve this equation, and round.
[tex]A[/tex] ≈ [tex]103.86891~ft^2[/tex]
Tutorial 6 (Production, Costs and Perfect Competition) – 40 Marks
Question 1 (14 Marks)
1. Suppose you can produce water flasks according to the production process Q = K^2 + 4K + 12 -
6L + KL, and that when producing these flasks, you have a cost constraint expressed as 2L+
2L = 32
1.1. Calculate the marginal product of labour for this production process.
(2)
1.2. Calculate the marginal product of capital for this production process.
[2]
1.3. Using your answers for 1.2 and 1.3, calculate the optimum quantities of capital and labour
when producing the water flasks because the marginal product per rand spent on each input
needs to be equal when producing optimally.
1.4. Using the Lagrange multipliers method, calculate how many water flasks you can produce
whilst satisfying your cost constraint.
[6]
[4]
The marginal product of labour is -6+K a and the marginal product of capital is 2K + 4 + L.
How to calculate the marginal product?From the information given, the production process is Q = K² + 4K + 12 - 6L + KL.
The marginal product of labour will be the first derivative which will be:
= -6 + K.
The marginal product of capital will be the first derivative which will be:
= 2K + 4 + L
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The line 1, has equation 3x + 5y – 2 = 0.
(a) Find the gradient oflı.
Answer:
2
Step-by-step explanation:
because of your options
8. A megaphone is formed by taking a cone with radius of 18 centimeters and an edge length of 60 centimeters from tip to base
and cutting off the tip. The
cut is made 12 centimeters along the edge from the tip and is parallel to the base. The cut produces
a new radius of 4 centimeters. Round your answers to the nearest tenth.
Hint: A megaphone is hollow, so do not include the base.
a. What is the surface area of the whole cone?
b. What is the surface area of the tip that is removed?
카
cone
megaphone
whole cone
C.
What is the surface area of only the megaphone?
The Surface area of the whole cone is 4408.56 cm²
The Surface area of the tips that is removed is 376.8 cm²
The Surface area of the megaphone(hollow) is 2712.96 cm²
What is surface area?Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape.
Therefore,
Surface area of the whole cone = πr² + πrl
Therefore,
Surface area of the whole cone = πr(r + l)
where
r = radius = 18 cml = edge length = 60 cmSurface area of the whole cone = 3.14 × 18(18 + 60) = 4408.56 cm²
Surface area of the tips that is removed = 3.14 × 4 (18 + 12) = 376.8 cm²
Surface area of the megaphone(hollow) = πrl
Surface area of the megaphone(hollow) = 3.14 × 18 × (60 - 12) = 2712.96 cm²
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can you guys please help with this? you get a lot of points i don’t understand the question please
Answer:
The first one i would think might be 0.05? uncertian and probably wrong, the second, HHH, HHT, HTH, HTT, THH, THT, TTH, and TTT, and the third, 3/8.
The way you figure out the third one is you are flipping 3 coins still, and you take all of the options above and there are 8 total and 3 ov them would land you 2 heads and a tail so its a simple 3/8 fraction
Answer:
2. 0.05
3. a) 8 outcomes (listed below)
3. b) 3/8
Step-by-step explanation:
Question 2
The sum of the probabilities of all possible outcomes is 1.
Therefore, if the probability of being on time for class is 0.95, then the probability of NOT being on time for class is:
1 - 0.95 = 0.05
Question 3
a) 8 possible outcomes of flipping 3 coins (H = heads, T = tails):
HHH HHT HTH THH
TTT TTH THT HTT
b)
There are 3 possible ways of flipping 2 Heads and 1 Tail:
HHT HTH THH
Out of a total number of 8 possible outcomes.
[tex]\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}[/tex]
[tex]\sf \implies P(2\:Heads\:and\:1\:Tail) = \dfrac38[/tex]