area of a triangle =length ×width
200=x/2×x
x²/2=200
x²=200×2
x²=400
x=20
length=20
width =x/2=20/2=10
i don't understand this at all plz just help no explanation needed
Answer/Step-by-step explanation:
For the 4th...
x=130 (since they are congruent)
y= 130 (Still congruent.)
(I am not really sure what a therom is)
5th one...
x= 65 (Congruent)
y= 115
And the 6th one
x= 100
y= 80
Hope this helps :)
3 Consider the line y= 3/4x+3. Find the equation of the line that is perpendicular to this line and passes through the point (-8, 6).
ANSWER
\(y\text{ = -}\frac{4}{6}x\text{ - }\frac{14}{3}\)EXPLANATION
We have to find the equation of the line perpendicular to the given line:
\(y\text{ = }\frac{3}{4}x\text{ + 3}\)and passes through the point (-8, 6)
A line perpendicular to another line has a slope that is the negative inverse of the line.
The slope of the given line is 3/4, so the slope of the line we are looking for is -4/3
Now, we use the point slope method to find the equation:
y - y1 = m(x - x1)
where m = slope
(x1, y1) = point the line passes through
So, we have:
\(\begin{gathered} y\text{ - 6 = -}\frac{4}{3}(x\text{ - (-8))} \\ y\text{ - 6 = -}\frac{4}{3}(x\text{ + 8)} \\ y\text{ - 6 = -}\frac{4}{3}x\text{ + (-}\frac{4}{3}\cdot8) \\ y\text{ - 6 = -}\frac{4}{3}x\text{ - }\frac{32}{3} \\ \Rightarrow\text{ y = -}\frac{4}{3}x\text{ - }\frac{32}{3}\text{ + 6} \\ y\text{ = -}\frac{4}{6}x\text{ - }\frac{14}{3} \end{gathered}\)That is the equation of the line.
urgent fastttttttttttttttttttttttttttt 50 points
Answer:
Design 1: $449.45
Design 2: $522.60
Design 3: $318.25
Design 3 as it's the cheapest
Step-by-step explanation:
Design 1
Area of a trapezoid = 1/2(a + b)h (where a and b are the bases and h is the height)
Given the slanted side = 3.5
Height = √(3.5² - 1²) = (3√5)/2
⇒ area of design 1 = 1/2(5 + 3) × (3√5)/2 = 6√5 = 13.42 m²
⇒ cost = 13.42 x 33.5 = $449.45
Design 2
Area of a triangle = 1/2 x base x height
Area of a rectangle = width x length
Area of a 6-sided regular polygon = 4 triangles + rectangle
⇒ area of design 2 = 4(1/2 × 1.4 × 2.0) + (2.5 × 4) = 15.6 m²
⇒ cost = 15.6 x 33.5 = $522.60
Design 3
Area of a trapezoid = 1/2(a + b)h (where a and b are the bases and h is the height)
⇒ area of design 3 = 1/2(3 + 2) × 2 + 1/2(3 + 1.5) × 2 = 9.5 m²
⇒ cost = 9.5 x 33.5 = $318.25
A coffee roaster is designing a coffee that can be modeled with a right cylinder for it's new breakfast blend. Breakfast blend cost the roaster $0.03 per cubic inch to produce. The roaster wants the can to contain an amount of coffee that will cost him no more than $7.50 to produce. Given the height of the can is to be equal to its diameter, what is the maximum height allowed for the can? Round to the nearest tenth of an inch.
Answer: 4.3
Step-by-step explanation:
-560.114 a rational or irrational
Simplify: `\left(4g^{3}h^{4}\right)^{3}`
The expression \left(\(4g^{3}h^{4}\right)^{3}\)) can be simplified to \(64g^{9}h^{12}.\)
To simplify this expression, we raise each term inside the parentheses to the power of 3. For 4\(g^{3}\), we have \(4^{3}\) = 64 and \((g^{3})^{3}\)= \(g^{9}\), so we get \(64g^{9}\). Similarly, for \(h^{4}\), we have \((h^{4})^{3} = h^{12}\).
Combining these simplified terms, we have \(64g^{9}h^{12}\) as the final simplified form of the expression \left\((4g^{3}h^{4}\)\right)^{3}.
In summary, raising the expression\(4g^{3}h^{4}\) to the power of 3 simplifies to \(64g^{9}h^{12}\).
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Which is the equation of a line that has a slope of 1 and passes through point (5, 3)?
Oy=x-2
Oy=x+2
Oy=x+3
Oy=x-5
Answer:
y = x - 2
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here m = 1 , then
y = x + c ← is the partial equation
to find c substitute (5, 3 ), that is x = 5, y = 3 into the partial equation
3 = 5 + c ⇒ c = 3 - 5 = - 2
y = x - 2 ← equation of line
Please help me figure out how to do these. Just the first one
Solution
\(\begin{gathered} f(x)=-2(x-1)^2+8 \\ f(x)=\sqrt{x+4} \end{gathered}\)The graph
\(\begin{gathered} x=-0.761 \\ x=2.646 \end{gathered}\)Find the value of a2 + b when a = -2 and b = 5
Answer:
-9.
Step-by-step explanation:
\(a^2 + b\\= -2^2 + 5\\= -4 + 5\\= -9.\)
hope this helps.
HELPP HURRYYYY !!
have to be turned in soon
Answer:
Last option: Angles 5 and 9
Step-by-step explanation:
Angles 3 and 5 are NOT corresponding angles; instead they are alternate angles.
Angles 1 and 7 are NOT corresponding angles; instead they are vertically opposite angles.
Angles 11 and 14 are NOT corresponding angles; instead they are adjacent angles on a straight line.
Angles 5 and 9 are corresponding angles.
Graph the function in your notebook. Determine whether the function is linear or nonlinear.
Answer:
It is linear because if all x values are different, it makes it linear.
What is the slope of the line?
Answer:
-3
Step-by-step explanation:
ΔX = 0 – -1 = 1
ΔY = -3 – 0 = -3,
y = -3x – 3, so the slope is -3
Sorry if you don't understand, but pls brainliest for level up
Answer:
-2
Step-by-step explanation:
The slope formula is y_2 - y_1 over x_2 - x_1.
We plug in the equation and it's -2 - 0 over 0 +1.
We get by simplifying the expression -2/1.
That is -2 because we ever something is over 1 then you remove the denominator and it becomes a whole number.
help how to do this pls
Answer:
its going 300 miles per hour
Step-by-step explanation:
which one is it???
Answer:
<
Step-by-step explanation:
√7 ≈ 2.66
14/5 = 2.8
2.66 < 2.8
√7 < 14/5
Best of Luck!
HELPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEE
Answer:
62 degrees
Step-by-step explanation:
HJ is a line which means its 180 degrees if HIL is 118 degrees then LIJ is 62 degrees and due to the lines being parallel then MLN is also 62 degrees
So, we know that ∠HIL = 118, and we also know that a line is 180 degrees. This means that ∠HIL +∠JIL = 180. We can use simple arithmetic and substitution to find that 180-118= 62, so ∠JIL = 62.
We have another line, Line N, so we know that the line is equal to 180 as well! Because ∠JIL and ∠ILM are both on this line, ∠JIL +∠ILM = 180. ∠JIL = 62, so 180 - 62 = 118.
Lastly, Line N is still equal to 180, so ∠ILM + ∠MLN = 180. In this case, we have 180-118=62, so ∠MLN = 62.
Or, using theorems, there is an easier way to do this.
The corresponding angles theorem tells us that "If a transversal intersects two parallel lines, the corresponding angles are congruent." So, we can see that both ∠MLN and ∠JIL are corresponding so they are congruent. First, however, we need to find ∠JIL, and if we look at our work from above, we see that ∠JIL = 62. Since ∠JIL and ∠MLN are congruent, or the same, ∠MLN is also 62.
:)
Need help ASAP! What is this
180 - 64= 116
116 divided by 4 = 29
x=29
Have a good day:>
Answer:
x = 29
Step-by-step explanation:
Supplementary angles add up to 180 degrees:
4x+64 = 180
Subtract 64 from both sides:
4x+64-64 = 180-64
4x = 116
Divide both sides by 4:
4x/4 = 116/4
x = 29
the greatest of the 21 positive integers in a certain list is 16. the median of the 21 integers is 10. what is the least possible average (arithmetic mean) of the 21 integers?
The least possible average (arithmetic mean) of the 21 integers is 6.
Let the list be arranged in ascending order.The median of the list, i.e., the 11th term in the list, is 10.The greatest number in the list, i.e., the 21st term, is 16.We need to minimize the mean, so we will choose the smallest numbers.For the first 10 elements, we can choose the smallest positive integer, i.e., 1.The first 10 terms are all equal to 1.We must choose numbers greater than or equal to 10 for elements 12 to 20. We will choose 10 in order to keep the average at its minimum.The terms from the 11th to the 20th position are equal to 10.The 21st term is 16.The sum of all the terms is (1*10) + (10*10) + 16.The sum of all the terms is 10 + 100 + 16.The sum of all the terms is 126.The mean is calculated as the sum of all terms divided by the total number of terms.The mean is 126/21.The mean is 6.To learn more about the arithmetic mean, visit :
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Find the volume of the rectangular prism.
Answer:
80
Step-by-step explanation:
The formula for finding the volume of a rectangular prism is base x width x height- 10x4x2
Please help, I’ll mark as brainliest.
Step-by-step explanation:
basic line function
y = 6x + 3
a translation (= a shift) upward by 5 simply means that all y values are incremented by 5 compared to the original results.
so, the function is then
y = 6x + 3 + 5 = 6x + 8
now we reflect this across the y-axis (mirror it left/right).
the simply means the slope flips its sign (+ to -, or - to +).
the slope is the factor of x (6).
but everything else stays the same (the same y-intercept, as the y-axis is the "mirror").
so, we get a final result
y = -6x + 8
and now the other way around :
first we reflect axis the y-axis leading to (same arguments as with the previous reflection)
y = -6x + 3
and then we translate this upward by 5 units leading to
y = -6x + 3 + 5 = -6x + 8
so, both final results are the same.
PLEASE HURY IM TIMED!!!!!!!
pick true or false.
Inequality True False
6.1<6.1
−2≤−2
5.6≥5.6
-4 > 4
Answer:
Step-by-step explanation:
false true true false
Answer:
false true true and false
Step-by-step explanation:
Erika read 90 pages in 2 and half hours. At the same time, how many hours would it take her to read 225 pages?
Answer:
6.25 hours
Step-by-step explanation:
pages per hour
pages/hour
90/2.5 = 36
36 pages per hour
225 / 36 = 6.25 hours
Answer:
6.25 hours
Step-by-step explanation:
2 and half hours = 2.5 hours
Proportions:
90 pages ⇔ 2.5 hours
225 pages ⇔ E hours
E = 225*2.5/90
E = 6.25 hours
6.25 hours = 6 and 1 quarter hours
Write the equation of a line parallel to the y-axis and passing through the point
(-3,-4).
Answer:
x = -3 is the answer. Writing this cause brainly requires a 20 character answer.
Mathematics Assignment 2.5 20 Sipho has a R7 500 that he wants to invest over 7 years. Two banking institutions offers him the following options. OPTION A 20.25% per annum simple interest OPTION B 15% per annum compound interest compounded annually. Determine which option would be financially more rewarding. At what rate of compound interest will the value of an investment double in 8 years?
As a result, 8.72% compound interest is required to double an investment in 8 years.
What, using an illustration, is simple interest?Simple Interest (S.I.) is a technique for figuring out how much interest will accrue on a specific initial sum of money at a certain rate of interest. For instance, if someone borrows Rs. 5000 at a cost of 10 p.a. for 2 years, they will pay S.I. on the loaned money for those two years.
For option A, the simple interest formula can be used:
Simple Interest = Principal x Rate x Time
After 7 years, Sipho will have:
Simple Interest = 7500 x 0.2025 x 7 = R10,147.50
So the total amount he will have after 7 years is:
Total Amount = Principal + Simple Interest = 7500 + 10147.50 = R17,647.50
For option B, the compound interest formula can be used:
\(A = P(1 + r/n)^{(nt)\)
\(A = 7500(1 + 0.15/1)^7 = R18,856.89\)
Where A is the total amount, P is the principal, r is the annual interest rate, n is the number of times compounded per year, and t is the time in years.
After 7 years, Sipho will have:
A = 7500(1 + 0.15/1)⁷ = R18,856.89
Therefore, option B is financially more rewarding.
To find the rate of compound interest that will double an investment in 8 years, we can use the formula:
\(A = P(1 + r/n)^{(nt)\)
where A is the final amount (double the initial investment), P is the principal, r is the annual interest rate, n is the number of times compounded per year, and t is the time in years.
We want to find r, so we can rearrange the formula to:
\(r = n[(A/P)^{(1/nt)} - 1]\)
Let's plug in the values we know:
P = 1 (the initial investment)
A = 2P = 2
t = 8
n = 1 (compounded annually)
\(r = 1[(2/1)^{(1/(1*8)}) - 1] = 0.0872 or 8.72%\)
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I am a 4-digit number larger than 2,500. No two of my digits are the same. The product of the thousands digit and the hundreds digit is equal to the ones digit. The sum of my digit is 16.
Read the clues. Find the number
Step-by-step explanation:
4-digit number abcd
a >= 2
a×b = d
so, 2 <= b <= 4 to allow a single digit result of a×b, and if b would be 1 or 0, the result would be either a copy of a or of b violating the rule that no 2 digits are the same.
that means a >= 3, because with a = 2 and b <= 4 the number can't be larger than 2500.
and that again means 2 <= b <= 3 and 3 <= a <= 4 to allow a single digit result of a×b.
the sum of "my digit" ? I guess you mean the sum of all digits is 16.
a + b + c + d = 16
so, my first guess :
a = 3
b = 2
therefore
d = 3×2 = 6
that means we have already 11 as sum of the digits, that leaves 5 for c.
so, the number would be
3256
the only alternative would start with a = 4 and then b = 2.
but that would make d = a×b = 8. abd 8 + 4 + 2 = 14, and that leaves for c only 2 to sum up to 16, and that would duplicate b.
so, 3256 is the only solution.
Can somone answer my question please: 3cm squared onverted to 100mm squared = 300cm squared?
Answer:
hi you can solve this sum by 4×side formula
Step-by-step explanation:
plz solve and check you equation
Pls Pls help asap! no f links pls n will give brainliest n points?
How could you show
By SAS similarity, ΔKML and ΔRTL are similar triangles. Therefore, option A is the correct answer.
From the given figure, KR=9 units, RL=15 units, MT=7.5 units and TL=12.5 units.
What are similar triangles?Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio. Either of these conditions will prove two triangles are similar.
Consider ΔKML and ΔRTL, we get
RL/KL =15/(15+9)
= 15/24
= 5/8
TL/ML =12.5/(12.5+7.5)
= 12.5/20
= 5/8
Here, RL/KL=TL/ML
Here, ∠KLM≅∠RLT
By SAS similarity, ΔKML and ΔRTL are similar triangles
So, ∠KMT≅∠RTL
By SAS similarity, ΔKML and ΔRTL are similar triangles. Therefore, option A is the correct answer.
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Answer:
a
Step-by-step explanation:
got it right in edmentum
What is the correct formula to use for the following problem:
"You got to the mailbox 45 seconds after you got out of the car, which is 90 meters
away. How FAST did you travel to the mailbox?"
OS=D/T
S=DT
TED/S
/S
OD D=SxT
OS=D/T
Step-by-step explanation:How fast you traveled simply means speedIt can be calculated using the formular: speed=distance/timelet's say speed= OStime=Tdistance=DOS= D/TA researcher wants to set up a regression equation where Y is a function X. Evaluate the researcher’s options given the following scenarios: (3)
i. Y is I(0); X is I(0)
ii. Y is I(2); X is I(0)
iii. Y is I(1); X is I(1); and the error term is I(0).
The appropriate regression model depends on the stationarity properties of both the dependent and independent variables, as well as the error term. The researcher can use a standard OLS regression model with first-order differencing of both Y and X.
In the first scenario, both Y and X are I(0), which means they are stationary time series. In this case, the researcher can perform a standard linear regression analysis, as the stationary series would lead to a stable long-run relationship. The answer from this model will be reliable and less likely to suffer from spurious regressions. In the second scenario, Y is I(2) and X is I(0). This implies that Y is integrated of order 2 and X is stationary. In this case, the researcher should first difference Y twice to make it stationary before performing a regression analysis. However, this approach might not be ideal as the integration orders differ, which can lead to biased results.
In the third scenario, Y and X are both I(1) and the error term is I(0). This indicates that both Y and X are non-stationary time series, but their combination might be stationary. The researcher should employ a co-integration analysis, such as the Engle-Granger method or Johansen test, to identify if there is a stable long-run relationship between Y and X. If co-integration is found, then an error correction model can be used for more accurate predictions.
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what’s the midpoint between (1, 4) and (5, -4)
Answer:
3,0
Step-by-step explanation:
HELP ME SOLVE THESE EQUATIONS
20 multi-step equations
1) -20 = -4x - 6x
2) 6 = 1 - 2n + 5
3) 8x - 2 = -9 +7 x
4) a + 5 = -5a + 5
5) 4m - 4 = 4m
6) p - 1 = 5p + 3p - 8
7) 5p - 14 = 8p + 4
8) p - 4 = -9 + p
PLEASE THIS ASSIGNMENT IS PAST DUE!!!