Answer:
Pythagorean Thereom is the method in which finds the lengths of each side of a triangle. The formula is \(a^{2}\) + \(b^{2}\) = \(c^{2}\)
Each letter in the formula defines a certain side of a triangle.
The picture shown shows the sides of each triangle and how they correspond with the formula.
This helps solve triangles to find its sum, as well as, to figure out a side depending on what is given.
a coin is placed next to the convex side of a thin spherical glass shell having a radius of curvature of 19.0 cm. reflection from the surface of the shell forms an image of the 1.5-cm-tall coin that is 6.50 cm behind the glass shell. part a where is the coin located? express your answer in centimeters. s
The location of the coin next to the convex side of a thin spherical glass shell is 3.68 cm.
According to the question,
Radius of curvature : 19 cm
Size of image formed : 1.5cm
Distance of coin from glass shell : 6.5cm
The position of the coin placed next to the convex side of a thin spherical glass shell is calculated as follows;
1/d = 1/f - 1/d'
where;
d' is the position of the coin's image
d position of the coin
f is focal length
Focal length = r/2 =19/ 2 = 9.5 cm
=> 1/d = 1/9.5 - (-1/6.5)
=> 1/d = 1/9.5 + 1/6.5
=> 1/d = 0.1052 + 0.1538
=> 1/d = 0.259
=>d = 1/0.259
d = 3.86 cm
Thus, the position of the coin placed next to the convex side of a thin spherical glass shell is 3.86 cm.
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Karl bought 3 1/2 gallons of milk that cost $2.70 per gallon.What was the total cost of the milk?
Answer:
The answer is 9.45
Step-by-step explanation:
2.7*3.5=9.45
This histogram shows the number of peanuts per bag of trail mix. Choose ALL statements about the data that are true? A) The most common range of peanuts per bag is 30-39. B) There are more bags with 10-19 peanuts than 40-49. C) The least common range of peanuts per bag is 10-19. D) The ranges with the same number of bags are 10-19 and 40-49. E) The ranges with the same number of bags are 20-29 and 50-59.
Answer:
A), C), E)
Step-by-step explanation:
James is following this recipe to make flapjacks.
James uses 440 g of sugar.
g
How many flapjacks is James making?
Recipe: Makes 15 flapjacks
200 g oats
100 ml syrup
110
g sugar
100 g margarine
40 g sultanas
flapjacks
Answer:
60
Step-by-step explanation:
Find the length of side AC. Show your work below. (round to the nearest hundredth) Pls help me
The length of the hypotenuse is approximately 50.16.
As we can see in the given right angle triangle that is made in the given model,
the base is 50 and the height is 4, so for hypotenuse,
Let's label the hypotenuse as 'c.'
We have:
\(y^2 = 50^2 + 4^2\\\\y^2 = 2500 + 16\\\\y^2 = 2516\)
To find the value of 'y,' we take the square root of both sides:
y ≈ √(2516)
y ≈ 50.16
For the slope of the given triangle,
In general slope = Δy(horizontal)/Δx(verticle)
The slope = 4/50 = 1/12.5
This slope is under state regulation since it falls between the standard ratio.
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you cannot directly assign an enumerator to an int variable.
a. true b. false
Answer:
Step-by-step explanation:
True.
An enumerator is a special data type in some programming languages that allows us to give names to integer values, making the code more readable and easier to maintain.
However, an enumerator cannot be directly assigned to an int variable because they are not compatible data types. An int variable can only store integer values, while an enumerator is a named constant that represents an integer value.
To assign an enumerator to an int variable, we need to explicitly cast the enumerator to an int using type conversion.
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I don't know what to do!! Please help?
Answer:
3.5 grams of peanuts per 1 gram of raisins
Step-by-step explanation:
You have the table with the following information
14 grams of peanuts = 4 grams of raisins
21 grams of peanuts = 6 grams of raisins
35 grams of peanuts = 10 grams of raisins
you need to find:
? grams of peanuts = 1 gram of raisins
So, we need to find the constant of proportionality.
14/4 = 7/2 = 3.5/1
Therefore, 3.5 grams of peanuts = 1 gram of raisins
The points (-1,-5) and (6, -5) are on a coordinate plane. What is the distance between the points?
Answer:
7
Step-by-step explanation:
the x-coordinates are -1 and 6. there's a distance of 7 between those two.
the y-coordinates are -5 and -5. there's a distance of 0 between those two.
(distance between points)² = 7² + 0² = 49 + 0 = 49.
take the square root of both sides:
distance between points = √49 = 7.
this would also have worked if the y-coordinates were different.
hi! please help in math!
i need the solution/explanation on how you got the answer
(y + 3) = -8(x - 4)
what is the slope?
Answer:
slope m = - 8
Step-by-step explanation:
the equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b ) a point on the line
y + 3 = - 8(x - 4) ← is in point- slope form
with slope m = - 8
The slope is :
↬ -8Solution:
Given: \(\bf{y+3=-8(x-4)}\)
To determine the slope, it's important to know the form of the equation first.
There are 3 forms that you should be familiar with.
The three forms of equations of a straight line are:
Slope Intercept (y = mx + b)Point slope (y-y₁) = m(x - x₁)Standard form (ax + by = c)This equation matches point slope perfectly.
The question becomes, how do you work with point slope to find slope?
Point slopeIn point slope, m is the slope and (x₁, y₁) is a point on the line.
Similarly, the slope of \(\bf{y+3=-8(x-4)}\) is -8.
Hence, the slope is -8.With respect to the diagram, which relationship is false if ∠FEA is supplementary to ∠HGD?
The statement that is false with respect to the diagram given where angle FEA is stated to be supplementary to angle HGD, is:
A. measure of angle FEB + measure of angle HGD = 180°
What are Supplementary Angles?By definition, supplementary angles are two angles that have a sum of 180 degrees when added together, that is, one is a supplement of the other.
Given the image below, we know the following:
Since angle FEA is supplementary to angle FEA would be congruent to angle HGC, and angle HGD is congruent to angle FEB. This is because, the supplement of angle
angle FEA + angle FEB - angle FEA + angle HGD = 180° - 180°. Therefore,
angle FEB = angle HGD.
In summary, from the options given, the statement that is false with respect to the diagram given where angle FEA is stated to be supplementary to angle HGD, is:
A. measure of angle FEB + measure of angle HGD = 180°
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I am stuck on this question. please help!
The coordinates after dilation are A (-0.5 , 1) , B(1,0.5) , C(0.5,-0.5) and D(0,0).
What is dilation?
Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. Yet, there is a variation in the shape's size.
Here , we need to find coordinates before using dilation. Then the coordinates are,
A=(-1,2) , B=(2,1) , C=(1,-1) and D=(0,0).
The scale factor = 0.5
For dilation coordinates we need to multiply coordinates by using scale factor. Then,
A = (-1,2) => (-1×0.5, 2×0.5) => (-0.5 , 1)
B = (2,1) => (2×0.5 , 1×0.5) => (1,0.5)
C = (1 , -1) => (1×0.5 , -1×0.5) => (0.5, -0.5)
D = (0 , 0) => (0×0.5 , 0×0.5) => (0,0)
Hence the coordinates after dilation are A (-0.5 , 1) , B(1,0.5) , C(0.5,-0.5) and D(0,0).
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Can someone help me pleaseeeeee 60 points
A company uses the expression 1.03^(2+x) to calculate the total percent increase in the company's operating cost, where x represents the number of years since the company began operating.
Which expression could be used to calculate the same total percent increase in the company's operating cost?
a.) 1.03^2 + 1.03^x
b.) 1.03^2 * 1.03^x
c.) 1^(2 + x) + 0.03^(2 + x)
d.) a^(2 + x) * 0.03^(2 + x)
Answer: is D
Step-by-step explanation:
Answer:
(B)
Step-by-step explanation:
According to exponent rules, a^(x+y) = a^x * a^y:
1.03^(2 + x) = 1.03^2 * 1.03^x
Solution: (B)
Find the special right triangles
The missing sides in the special triangles are 1) 8 and 8√2, (2) 5√2 and 5 (3) 2√2 and (4) 7/8 and 7√2/8
What is a triangle?A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry
In special triangles, The ratio of 45⁰ are
1 to find the value of y, we use
Opposite/adjacent = Tan
Tan 45 y/8
1/1 = y/8
therefore y = 8 units
To find x we use opposite /hypo. = Sin
Sin45 = 8/x
1/√2 = 8/x√√Therefore x = 8√2
2) To find u we use sin= opp/hypo
Sin45 = 5/u
Cross and multiply we have
1/√2 = 5/u
u = 5√2
To find v we use Tan= opp/adj
Tan45 = 5/v
1/1 = 5/v
v= 5
3) to find u we use Cos = Adj/hypo
Cos45 = 2/u
1/√2 = 2/u
Cross multiply to have u = 2√2
4) To find x we use Sin= oppo/hypo
Sin45 = 7√2/2 ÷x
1/√2 = 7√2/4
7√2/4 = 1/√2
7√2/4√2
Rationalize to have
= 28/32 = 4/8 = 7/8
To find y we use cos= adj/hypo
Cos45 = y /7/8
1/√2 = y/7/8
Simplify to have
y = 7/8÷√2
y = (7√2)/8
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A truck arrives on the job site to deliver a specified mix with a W/C ratio of 0.45. The mix was batched as follows: Cement: 22 lbs., Sand:41 lbs., Gravel: 57 lbs., Water: 8 lbs. How many gallons of water can be added to the mix and still remain in spec
Therefore, You can add approximately 0.228 gallons of water to the mix and still remain within the specified W/C ratio of 0.45.
The total weight of the mix is 22 + 41 + 57 + 8 = 128 lbs. To calculate the current W/C ratio, we need to convert the weight of water to gallons. One gallon of water weighs approximately 8.34 lbs. Therefore, the current weight of water is 8/8.34 = 0.96 gallons. The current W/C ratio is 0.96/128 = 0.0075. To remain within spec with a W/C ratio of 0.45, we can use the formula: (water weight + x)/(total weight) = 0.45, where x is the additional weight of water needed. Solving for x, we get x = (0.45 x 128) - 8 = 50.4 lbs. Converting to gallons, this is 50.4/8.34 = 6.05 gallons. Therefore, 6.05 gallons of water can be added to the mix and still remain within spec.
To determine how many gallons of water can be added to the mix and still remain within the specified W/C ratio of 0.45, follow these steps:
1. Calculate the required amount of water for the specified W/C ratio: Cement weight x W/C ratio = 22 lbs. x 0.45 = 9.9 lbs. of water.
2. Subtract the initial water content from the required amount: 9.9 lbs. - 8 lbs. = 1.9 lbs. of additional water needed.
3. Convert the additional water weight to gallons: 1.9 lbs. / 8.34 lbs./gallon (water density) ≈ 0.228 gallons.
Therefore, You can add approximately 0.228 gallons of water to the mix and still remain within the specified W/C ratio of 0.45.
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Pls help me
Rashaad needs to order some new supplies for the restaurant where he works. The restaurant needs at least 631 knives. There are currently 195 knives. If each set on sale contains 6 knives, which inequality can be used to determine xx, the minimum number of sets of knives Rashaad should buy?
The minimum number of sets of knives Rashaad should buy is 73 the inequality is represented as N > 73.
What is inequality?When two expressions are connected by a sign like "not equal to," "greater than," or "less than," it is said to be inequitable. The inequality shows the greater than and less than relation between variables and the numbers.
Given that the restaurant needs at least 631 knives. There are currently 195 knives. If each set on sale contains 6 knives. The minimum number of knives will be:-
N > ( 631 - 195 ) / 6
N > ( 431 / 6 )
N > 73
Therefore, the minimum number of sets of knives Rashaad should buy is 73 the inequality is represented as N > 73.
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PLEASE HELP WILL MARK BRAINLIEST
Who’s right? And why?
Answer:
Oscar is. dividing the cost by the amount you will find that all answers equal 3.99
Answer:
Oscar is right because if you divided the cost by the amount in lbs for each row in the table to find the unit rate, it would equal to 3.99.
You are descending from the top of a 32-foot tall rock climbing wall at an average rate of -2.3 feet per minute. How many feet off the floor are you in 5 minutes? How many feet off the floor are you in 10 minutes? Approximately when will you reach the ground?
Answer:
You are 11.5 feet off the floor are you in 5 minutes
You are 23 feet off the floor are you in 10 minutes
it will take 13.91 minutes to reach the ground
Step-by-step explanation:
If you are top , height will keep decreasing as you move downward.
Given
top height 32 feet
Descending speed = -2.3 feet /minute
Here negative sign implies that height is decreasing.
concept used
distance = speed * time
How many feet off the floor are you in 5 minutes?
time = 5 minutes
distance descended = -2.3 feet /minute*5 minutes = - 11.5 feet
Hence ,
I would have moved 11.5 feet from the top.
Distance from ground will be = Top height - distance descended
Distance from ground will be = 32 - 11.5 = 20.5 feet
____________________________________________
How many feet off the floor are you in 10 minutes
distance descended = -2.3 feet /minute*10 minutes = - 23 feet
Hence ,
I would have moved 23 feet from the top.
Distance from ground will be = Top height - distance descended
Distance from ground will be = 32 - 23= 9 feet
______________________________________________
When you reach the ground distance descended will be 32 feet.
Since its a descend distance off the floor has to be taken as negative value
Thus, distance descend in this case will be -32 feet
-32 feet= -2.3 feet /minute*Time
Time = -32/-2.3 = 13. 91 minutes.
Thus, it will take 13.91 minutes to reach the ground.
What are the two roots of the equation that is graphed? Root 1 type your answer... Root 2: type your answer..
Answer:
x = - 4, x = 0
Step-by-step explanation:
The roots are the values of x on the x- axis where the graph crosses the x- axis.
The graph crosses the x- axis at x = - 4, x = 0 ← roots
At what value(s) of x does fx) x4-18x2 have a critical point where the graph changes from decreasing to increasing? (4 points) 0 and -3 only 0 and 3 only 0 -3, and 3 only 0 only DELL
The correct answer is: 0, -3, and 3. At 0, -3, and 3 of x does fx) x4-18x2 have a critical point where the graph changes from decreasing to increasing.
To find the critical points where the graph of the function f(x) = x^4 - 18x^2 changes from decreasing to increasing, we need to find the values of x where the derivative of the function is equal to zero or does not exist.
Let's find the derivative of f(x) with respect to x:
f'(x) = 4x^3 - 36x
To find the critical points, we set the derivative equal to zero and solve for x:
4x^3 - 36x = 0
Factor out 4x:
4x(x^2 - 9) = 0
Now we have two factors:
1) 4x = 0, which gives x = 0
2) x^2 - 9 = 0, which gives x = ±3
So, the critical points where the graph changes from decreasing to increasing are x = 0, x = -3, and x = 3.
Therefore, the correct answer is: 0, -3, and 3.
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Which statement is necessarily true if is an altitude to the hypotenuse of right ? A. ≅ B. C. D. ∠BAC ≅ ∠BDC
Answer:
Step-by-step explanation:
An angle measures 40° more than the measure of its complementary angle. What is the measure of each angle?
Answer:
70° and 110° .
Step-by-step explanation:
PLEASE HELP ME I’LL GIVE BRILLIANCE TO YOU
Answer:
y=-2x+8
Step-by-step explanation:
y intercept is at 8, and there is a decrease in 2x per 1y
Answer:
the answer is the second one do nitrotype. com
Step-by-step explanation:
get rid of the space in .com
At the p.e. class, pupils help each other measure heights. the average height of jeremy and justin is 147 cm. jeremy is 24 cm taller than justin. what is the height of jeremy?
The height of Jeremy is 159 cm.
What is average?In layman's terms, an average is a single number chosen to represent a set of numbers, typically the sum of the numbers divided by the number of numbers in the set (the arithmetic mean). The average of the numbers 2, 3, 4, 7, and 9 (summed to 25) is 5, for example. An average could be another statistic, such as the median or mode, depending on the context.To find the height of Jeremy:
The formula of average = sum of terms/number of termsLet, Justin, be x and Jeremy be x + 24So,
147 = x + (x+24) / 22x + 24 = 147 × 22x + 24 = 2942x = 294 - 242x = 270x = 135Then, Jeremy = 135 + 24 = 159 cm.
Therefore, the height of Jeremy is 159 cm.
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__________________ occurs when the method of observation tends to produce values that systematically differ from the true value in some way.
When the process of observing or measuring yields results that consistently deviate in some way from the true value, this is known as observer/measurement bias. Because of the systematic mistake this adds into the data, the conclusions are incorrect or unreliable.
Observer/measurement bias is a sort of systematic error that happens when the technique used for observation or measurement yields results that consistently deviate in some way from the true value. The observer's own preconceived ideas or expectations, the measurement equipment, and the environment in which the observation or measurement is being conducted can all contribute to this form of bias.An observer's bias, for instance, could cause them to see or measure something in a way that favours one particular result or outcome over another. Similar to how external influences like noise, light, or temperature can skew results, the environment in which the observation or measurement is taking place may add a bias. If feasible, results that are inaccurate or unreliable because of observer/measurement bias should be avoided because they can lead to incorrect inferences about the data.
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The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game
reduced?
Answer:
25% decrease
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
solve for the equation 3x+2=8
I'm Pretty Sure The Answer Is x=2
Hope This Help's
Answer:
2
Step-by-step explanation:
When subtract the 2 from the right side and subtract it from the right side, then divide three from the left side and then divided it from the right side, then you should end up with x=2
How many times greater is 3.9*10^-4 than 7.8 10^-6
Answer:
50
Step-by-step explanation:
i am sure for that.it is so easy
Answer:
50 times greater than 7.8×10^-6
Step-by-step explanation:
\(\frac{3.9•10^{- 4}}{7.8•10^{- 6} \\\\\\ \frac{3.9}{7.8}•10^{- 4 -(- 6)} \\\\\\\ \frac{1}{2}•10^{- 4 + 6} \\\\\\ \frac{1}{2}•10^2 \\\\\\ \frac{1}{2}•100 \\\\\\ \frac{100}{2} \\\\\\ 50\)
I hope I've helped you.
Jenna bought 45 lbs of clay for her art projects. She used 13.8 lbs to make a sculpture, and 0.82 lbs for each mug. How many mugs did Jenna make if she had 21.36 lbs of clay left over?
Answer:
She made 12 mugs.
Step-by-step explanation:
the function f(x)= (x-8) (x+2) (x+3) has which zeros
Answer:
(8, 0)
(-2, 0)
(-3, 0)
Step-by-step explanation:
x - 8 = 0
x = 8
x + 2 = 0
x = -2
x + 3 = 0
x = -3
\((x-8)(x+2)(x+3) =0\\\\\implies x -8 =0~~~ \text{or}~~~x+2 =0 ~~~ \text{or}~~~x+3 = 0\\\\\implies x = 8 ~~~~~~~~ \text{or}~~~~~~x = -2 ~~~ \text{or}~~~ x = -3\\\\\\\text{Hence the roots are}~ 8, -2 ~\text{and} ~-3\)