Answer: 80%
Step-by-step explanation:
Annual rainfall in Arizona = 12 inches
Rainfall between January and April = 2.4 inches.
Rainfall after April = Total Rainfall.
Total rainfall - Rainfall till April = 12 - 2.4 = 9.6 inches.
% of Rainfall after April = \(\frac{Rainfall after April}{Total Rainfall} x100\) = \(\frac{9.6}{12} x 100\) = 80%
What are the domain and range of the function?
What value is excluded from the domain because it causes a hole in the graph of the function?
f(x)=x2−16x−4
Answer:
\(x\) = - 2/7
Alternate form: - 0.285714
Step-by-step explanation:
1- Substitute f ( x ) = 0
Reorder
f ( \(x\) ) = \(x\) x 2 - 16\(x\) - 4
2- Collect like terms
0 = 2\(x\) - 16\(x\) - 4
3- Move the variable to the left
0 = - 14\(x\) - 4
4- Divide both sides
14\(x\) = - 4
HELP!!!!!!! PLS
QUESTIONS ARE BELOW
Answer:
hope this will help you
Step-by-step explanation:
\( \frac{7m}{4} - 2m - 3 \\ = \frac{7 \times ( - 2)}{4} - 2 \times ( - 2) - 3 \\ = \frac{ - 7}{2} + 4 - 3 \\ = \frac{ - 7}{2} + 1 \\ = \frac{ - 7 + 2}{2} \\ = \frac{ - 5}{2} \\ = - 2.5\)
\((3 + {n}^{4} ) \div 3 \\ = (3 + {3}^{4} ) \div 3 \\ = (3 + 81) \div 3 \\ = 84 \div 3 \\ = 28\)
Help Quick Please. Will give brainliest.
Answer:
72\(\sqrt{3}\) units²
Step-by-step explanation:
The area (A) of the triangle is calculated as
A = \(\frac{1}{2}\) bh ( b is the base and h the perpendicular height )
Here b = ST = a = 12 and h = RS
To calculate RS use the tangent ratio in the right triangle and the exact value
tan60° = \(\sqrt{3}\) , thus
tan60° = \(\frac{opposite}{adjacent}\) = \(\frac{RS}{ST}\) = \(\frac{RS}{12}\) = \(\sqrt{3}\) ( multiply both sides by 12 )
RS = 12\(\sqrt{3}\)
Thus
A = \(\frac{1}{2}\) × 12 × 12\(\sqrt{3}\) = 6 × 12\(\sqrt{3}\) = 72\(\sqrt{3}\) units²
Find the missing side lengths, put answer as radical in simplest form
Look at picture for reference
The value of the missing side lengths x and y are 5√2 and 5 respectively.
What is the value of side length x and y?The figure in the image is a right triangle.
Angle θ = 45 degree
Hypotenuse = x
Opposite to angle θ = y
Adjacent to angle θ = 5
To solve for side x and side y, we use the trigonometric ratio.
Note that:
Cosine = adjacent / hypotenuse
tangent = opposite / adjacent
Solving for x:
Cosine = adjacent / hypotenuse
Plug in the values
cos( 45 ) = 5/x
x = 5 / cos( 45 )
x = 5√2
Solving for side y:
tangent = opposite / adjacent
Plug in the values
tan( 45 ) = y/5
y = tan( 45 ) × 5
y = 5
Therefore, the value of side length x is 5 units.
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Coins are placed into a treasure chest, and each coin has a radius of 1.4 inches and a height of 0.0625 inches. If there are 230 coins inside the treasure chest, how many cubic inches of the treasure chest is taken up by the coins? Round to the nearest hundredth and approximate using π =3.14
A: 0.38 in²
B: 126.39 in³
C: 353.88 in³
D: 88.47 in³
The total volume taken by the coins is 88.47 cubic inches, so the correct option is D.
How many cubic inches are taken up by the coins?The coins are cylinders with a radius of 1.4 inches and a height of 0.0625 inches.
Remember that the volume of a cylinder is given by:
volume = (height)*pi*(radius)^2
Where pi = 3.14
Then here the volume of each coin is:
V = (0.0625 in)*3.14*(1.4 in)^2 = 0.384 in³
And there are 230 coins, so the total volume is:
V = 230*0.384 in³ = 88.47 in³
So the correct option is D.
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Answer: D: 88.47 in³
Step-by-step explanation: So what you want to do is first find the individual volume of the coins. Use the volume formula: V = πr^2h
Take 1.4 and times it by itself
1.4 x 1.4 = 1.96
Now multiply 1.96 by 0.0625
1.96 x 0.0625 = 0.1225
And times 0.1225 by pi, or in this case, 3.14
0.1225 x 3.14 = 0.38465
Now you have found the individual volume of each coin. You are trying to find how much space all of the coins take up together. The question says that there is 230 coins in total. So times 0.38465 by 230 to find how much space all the coins take up.
0.38465 x 230 = 88.4695 in³
Now round it to the nearest hundredth: 88.47 in³
That is your answer.
Also I took the same test and I picked 88.47 inches cubed and got it right.
Proof:
Have a good day :)))
n a science experiment, the initial temperature was 55 degrees Fahrenheit, and each hour after, the temperature dropped by 4 degrees. Which expression represents the temperature, in degrees Fahrenheit, after t hours?
Answer:
f(t) = 55 = 4t
Step-by-step explanation:
divide 360 in the ratio 1:7
Answer:
45:315
Step-by-step explanation:
Add up the ratio to get the total ratio.
1+7=8
Divide the 360 by the total ratio.
360÷8=45
The number 45 tells you how many times to multiply both sets of the ratio to get a total of 360.
1×45=45
7×45=315
so,
45:315
Hope this helped. Comment below if you need more assistance! :)
Please answer this question
Answer:
$40.00 is the answer
Step-by-step explanation:
also can you mark me as a brainlist if you get a chance
Answer: $40.00
Step-by-step explanation:
12 is 30% of 40
A deposit of $6,500 was invested and has grown to $8,300 in 5 years. The growth in value was via simple interest, calculated on the basis of the initial investment. Calculate the interest rate.
Round your answer to the nearest tenth of a percent.
Do NOT round until you have calculated your final answer.
What the meaning of statement this?
The statement is asserting that the universal class (V) is defined as the collection of all sets, where every set is included. It signifies that V encompasses all possible sets within the given set theory framework.
The statement "The universal class set, or universe, is the class of all sets: V = {x: x = x}" is referring to the concept of the universal class or the universe in set theory.
In set theory, the universal class set, denoted as V, represents the collection or class that contains all sets. It includes every possible set that can be defined or exists within the context of the set theory being considered.
The notation "{x: x = x}" is used to define the elements of the universal class. Here, "x = x" represents a condition that is always true for any object or element, regardless of its nature. In other words, this condition holds for everything in the universe, as anything is equal to itself.
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Please help I just need number 8
Answer:
Step-by-step explanation:
P=10.1
A=3.08
P=4.7+3.2+2.2 =10.1
A=1/2 b h = 1/2 (2.2)(2.8)
Somebody please help me!
Answer:
second option, IQR = 13-6 = 7 and Range = 17-6 = 11
Step-by-step explanation:
Please help I'm stuck
Answer:
I'm stuck to.
Step-by-step explanation:
is there suppose to be an angle or a triangle?
Which graph shows the new position of the rectangle after a translation?
The graph that shows the new position of the rectangle after a translation is; Option C
How to interpret Translation in Transformation?When it comes to transformation in mathematics, there are different types such as reflection, dilation, rotation, translation.
Now, we are dealing with translation which is defined as a transformation of a shape in a plane that preserves the length, which tells us that the object is transformed without getting its dimensions affected.
In this case, we see the rectangle in the graph and we can conclude that the translation of the rectangle shows the correct translation would be the second option because it shows that the length is preserved without getting its dimensions or shape altered.
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Find the length of side x in simplest radical form with a rational denominator
Answer:
The answer is "\(\frac{7\sqrt{3}}{2}\)"
Step-by-step explanation:
\(\to \sin 60^{\circ} = \frac{x}{7} \\\\\to x=\sin 60^{\circ} \times 7 \\\\\therefore \sin 60^{\circ} = \frac{\sqrt{3}}{2} \\\\\to x= \frac{\sqrt{3}}{2}\times 7 \\\\\to x= \frac{7\sqrt{3}}{2}\)
100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
Answer
Measure the shape yourself and follow the explanation.
Step-by-step explanation:
Measure each side of the Triangles with your ruler. Record it.
For example,
I measured and got 3cm, 3.5cm, 3.5cm.
Multiply by scale factor r 2.
for example, 3cm × 2 = 6cm
3.5cm × 2 = 7.0cm
3.5cm × 2 = 7.0cm
Use your pencil to draw your new numbers to form the new Triangle.
As for the second shape, measure each four sides using ruler
for example, I measured and had 4cm, 6cm, 4cm, 6m.
Multiply by scale factor r 2.
for example, 4cm × 1/4 = 1 cm
6cm × 1/4 = 1.5cm
4cm × 1/4 = 1 cm
6cm × 1/4 = 1.5cm
Use your ruler to measure 1cm, 1.5cm, 1cm and 1.5cm, then to draw your new shape
what is the sum of n=-2 and m=5
Answer:
sum=n+m=-2+5=3 is a answer
Simplify 3^2 * 3^(-5). Express your answer as a fraction
Answer:
1 /27
1 over 27
Step-by-step explanation:
brainliest please?
between what two consecutive integers must log2(17) lie
Answer:
4 and 5
Step-by-step explanation:
For answering questions like this, it can be useful to remember a few of the powers of small integers:
2^4 = 16
2^5 = 32
Exponents and logarithmsA logarithm can be considered to be an exponent of the base.
\(\log_b(x) = a \ \Longleftrightarrow\ b^a=x\)
The ordering of powers of 2 relative to the number of interest (17) is ...
16 < 17 < 32
2⁴ < 17 < 2⁵ . . . . . . . . . . . . . . . . . . . expressed as powers of 2
log₂(2⁴) < log₂(17) < log₂(2⁵) . . . . . log₂ of the above inequality
4 < log₂(17) < 5 . . . . . . . . . . . . . . . . showing the values of the logs
Log₂(17) lies between 4 and 5.
__
Additional comment
Using the "change of base" formula, you can use a calculator to find the value of log₂(17). It shows you the value is between 4 and 5.
log₂(17) = log(17)/log(2) . . . . . . using logs to the same base
6th grade math ! Help me please :))
Answer to the perimeter
2 x (5 + 13)
Answer:
2 x (5+13)
Step-by-step explanation:
To find the perimeter of a rectangle you must add all the side lengths. For the rectangle that is displayed, there are 2 sides that measure 13 cm and two that measure 5 cm. Therefore, you should get your answer by adding the 5 cm and the 13 cm, then, multiply the solution by 2 to get your answer.
Use inductive reasoning to predict the most probable next number in the list.
3, 9, -3, 3, -9, -3, -15, -9, -21, ?
Need Help
Answer: -27
Step-by-step explanation: Use inductive reasoning to predict the most probable next number in the list.
3, 9, -3, 3, -9, -3, -15, -9, -21, ?
We can start by looking at the differences between consecutive terms in the list:
9 - 3 = 6 -3 - 9 = -12 3 - (-3) = 6 -9 - 3 = -12 -3 - (-9) = 6 -15 - (-3) = -12 -9 - (-15) = 6 -21 - (-9) = -12
Notice that the differences alternate between positive 6 and negative 12. This suggests that the pattern involves adding 6, then subtracting 12, and then adding 6 again. Applying this pattern to the last term in the list (-21), we get:
-21 + 6 = -15 -15 - 12 = -27 -27 + 6 = -21
Therefore, we predict that the most probable next number in the list is -27.
Kaj needs to order some new supplies for the restaurant where she works. The restaurant needs at least 736 knives. There are currently 155 knives. If each set on sale contains 12 knives, what is the minimum number of sets of knives Kaj should buy?
Hence, the minimum number of sets of knives kaj should buy is 48 sets.
Given this, a restaurant must have at least 736 knives.
At the moment, it possesses 155 knives.
Every set includes 12 knives.
Let the number of knife sets be.
Reason: Minimum number of sets indicates ≥
This means ≤ the maximum amount of sets
Step: 2
In light of the inquiries,
\(155+s*12\geq 736\)
\(12s\geq 736-155\)
\(12s\geq 581\)
\(s\geq \frac{581}{12}\)
\(s\geq 48.42\)
Step 3: Count the number of knife sets \(s\geq 48.42\)
that is greater than or equal to 48
Therefore, the required minimum is 48 sets of knives.
What are sets?
In mathematics, a set is a well-defined collection of objects. Sets are named and represented using capital letters. In the set theory, the elements that a set comprises can be any kind of thing: people, letters of the alphabet, numbers, shapes, variables, etc.
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how many natural numbers lie between 75² and 76²
Answer:
Natural numbers between \(75^{2}\) and \(76^{2}\) is
(76 * 76) - (75 * 75)
=> 5776 - 5625
=> 151
Therefore, there are 151 natural numbers between \(75^{2}\) and \(76^{2}\)
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Thank You!!
SOMONE PLSS HELP ME DUE IN 2 MINS PLSSSSSSSS HELP
Answer:
B
Step-by-step explanation:
The great-circle distance, orthodromic distance, or spherical distance is the distance along a great circle. It is the shortest distance between two points on the surface of a sphere, measured along the surface of the sphere (as opposed to a straight line through the sphere's interior).
K'
-8,8
,
L'
8,8
,
M'
-4,8
i need help finding the new coordinate. and scale factor is 1/2
Answer:
Step-by-step explanation:
To find the new coordinate of a point after it has been scaled by a factor of 1/2, you can multiply the x- and y-coordinates of the point by 1/2.
For example, to find the new coordinate of point K', you can multiply the x-coordinate of K' (-8) by 1/2 to get the new x-coordinate, and multiply the y-coordinate of K' (8) by 1/2 to get the new y-coordinate. This gives you the new coordinate of K' as (-4,4).
You can use the same method to find the new coordinates of points L' and M'. The new coordinate of L' is (4,4) and the new coordinate of M' is (-2,4).
I hope this helps! Let me know if you have any questions.
Solve the system of linear equations using substitution. Use a pencil and paper. Which expression would be easier to substitute into the other equation, in order to solve this problem? Explain your reasoning.
x=4y-9
x+4y=3
Answer:
(- 3, 1.5)
--------------------------
Given system:
x = 4y - 9x + 4y = 3The first expression is ready to be substituted as no further operation is required to simplify it.
4y - 9 + 4y = 38y - 9 = 38y = 12y = 12/8y = 1.5Find x:
x = 4*1.5 - 9x = 6 - 9x = - 3Use rational exponents to rewrite the following espression. Assume that any variables are positive.
Any radical expression can be written using rational exponents, in the form:
n√X = x ^1/n
So, for this case:
\(\frac{^5\sqrt[]{^{}z^9}\cdot^{7\sqrt[]{y^4}}}{wy\sqrt[]{w}}\)\(\frac{z^{\frac{9}{5}}\cdot y^{\frac{4}{7}}}{wy\cdot w^{\frac{1}{2}}}\)Simplify:
\(\frac{z^{\frac{9}{5}}}{w^{\frac{3}{2}}y^{\frac{3}{7}}}\)Consider the problem of predicting Y using another variable, X, so that the prediction of Y is some function of X, say g(X). Suppose that the quality of the prediction is measured by the squared prediction error made on average over all predictions, that is, by E{[Y – g(x)]?}. This exercise provides a non-calculus proof that of all possible prediction functions g, the best predic- tion is made by the conditional expectation, E(Y|X). a. E(Y|X), and let u = Y – û denote its prediction error. Show that E(u) = 0. (Hint: Use the law of iterated expectations.) b. Show that E(uX) = 0. c. Let Ỹ = g(x) denote a different prediction of Y using X, and let v = Y Ỹ denote its error. Show that E[(Y – Ỹ)?] > E[(Y - Ỹ)2]. [Hint: Let h(X) = g(x) – E(Y|X), so that v = [Y - E(Y|X)] - h(X). Derive E(v2).] a. Let û =
E(Y|X) is the conditional expectation of Y given X. We can use the law of iterated expectations to show that E(u) = 0.
This law states that E(E(X|Y)) = E(X). Therefore, E(u) = E(Y - E(Y|X)) = E(Y) - E(E(Y|X)) = E(Y) - E(Y) = 0.
b. We can use the law of iterated expectations again to show that E(uX) = 0. This law states that E(E(XY|Z)) = E(X)E(Y|Z). Therefore, E(uX) = E(YX - E(YX|X)) = E(YX) - E(E(YX|X)) = E(YX) - E(Y)E(X) = 0.
c. Let Ỹ = g(x) denote a different prediction of Y using X and let v = Y - Ỹ denote its error. We can use the equation h(X) = g(x) - E(Y|X), so that v = [Y - E(Y|X)] - h(X). Using this equation, we can derive E(v2) = E[(Y - E(Y|X))2] - 2E[(Y - E(Y|X))h(X)] + E[h(X)2]. Since E(Y - E(Y|X)) = 0, this reduces to E(v2) = E[h(X)2] < E[(Y - Ỹ)2], which shows that E[(Y - Ỹ)?] > E[(Y - Ỹ)2].
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Here is an input-output rule write 1 if the input is odd write 0 if the input is even
-3
-2
-1
0
1
2
The output of the given values that is -3,-2,-1,0,1,2,3 are 1,0,1,0,1,0,1 respectively.
What is Even and Odd numbers ?
Even numbers are if the numbers divisible by 2 and if it is not divisible by 2 than it is odd number.
Given ,
Here is an input-output rule write 1 if the input is odd write 0 if the input is even .
So, here we have to write outputs according to the given inputs.
And here inputs are -3,-2,-1,0,1,2,3
As -3 is odd, so the output could be 1
As -2 is odd, so the output could be 0
As -1 is odd, so the output could be 1
As 0 is odd, so the output could be 0
As 1 is odd, so the output could be 1
As 2 is odd, so the output could be 0
As 3 is odd, so the output could be 1
Hence, The output of the given values that is -3,-2,-1,0,1,2,3 are 1,0,1,0,1,0,1 respectively.
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area of a floor 19m by 12 m is
Answer:228m
Step-by-step explanation: 19m x 12m = 228m
Answer: 228m
Step-by-step explanation: Just multiply 19m by 12m. That's how you find area.