Postulate SAS can be used to prove triangle [tex]ABC[/tex] is congruent to triangle [tex]AED.[/tex]
What is triangle?" Triangle is defined as the two dimensional closed figure with three vertices, three sides, and three angles enclosed in it."
According to the question,
Given,
In triangle [tex]ABC[/tex] and [tex]AED[/tex]
[tex]\angle ADE = 120\° \ \ \ \ \ \ \ \ \ (1)[/tex]
[tex]\angle ACD = 60\°\\\\\angle ACD + \angle ACB = 180\° (linear \ pair)\\\\\implies \angle ACB = 180\° -60\°\\\\\implies \angle ACB = 120\° \ \ \ \ \ \ \ \ \ \ (2)[/tex]
From [tex](1)[/tex] and [tex](2)[/tex] we get
[tex]\angle ADE \cong \angle ACB[/tex]
[tex]AC \cong AD\\\\BC \cong ED[/tex]
By SAS postulate ,
Triangle ABC is congruent to triangle AED.
Hence, Option 3 is the correct answer.
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Reduce to simplest form. -3/5 + 1/3=
Answer:
-4/15 (Fraction form) -0.26... (Decimal form)
Step-by-step explanation:
Answer:
-1/3
Step-by-step explanation:
when you add the numerators which are, -3 and 1, you'd end up with -2.
when you add the denominators which are, 5 and 1, you'd end up with 6.
so that would give you -2/6.
when you simplify that you end up with -1/3.
there are four colors red white black and blue on a spinner and there is a coin . what is the probability of spinning a red and heads?
Answer: 1/8
Step-by-step explanation: There is 1/4 of a chance of spinning a red, and 1/2 of a chance of getting a heads. Multiply these numbers.
1/4 x 1/2 = 1/8
There is a 1/8 chance of this outcome.
What are the solutions of the equation 3x^2+8x=12
x= -4/3 + 2/3 square root of 13 or x= -4/3 + -2/3 square root of 13 !!
Answer:
Step-by-step explanation:
3x² + 8x = 12
3x² + 8x - 12 = 0
a=3, b=8, and c=-12. Solving with quadratic formula:
x = [ -b ± √(b² - 4ac) ] / 2a
x = [ -8 ± √(8² - 4(3)(-12)) ] / 2(3)
x = (-8 ± √208) / 6
x = (-8 ± 4√13) / 6
x = -4/3 ± 2/3 √13
how much dog food does dobby eat in a week
Answer:
We do not know much details for your question. Please add numbers or something. This question could be deleted if we don't know how to solve something like this.The eggs of birds and other animals come in many different shapes and sizes. Eggs often have a shape that is nearly spherical. When this is true, you can use the formula for a sphere to find their volume.
The green turtle lays eggs that are approximately spherical with an average diameter of 4.1 centimeters. Each turtle lays an average of 113 eggs at one time. Find the volume of one egg, rounding your answer to the nearest tenth of a cubic centimeter. Then find the total volume of these eggs, to the nearest tenth of a cubic centimeter
The eggs are approximately 2.1 and which each turtle does not lay 113 they lay 123 eggs each year around which you subtract it all up and it comes out to 120.9.then the you divide all up which gives you your answer to your problem.
Final answer:
The volume of one spherical green turtle egg with a diameter of 4.1 cm is approximately 36.2 cubic centimeters. The total volume of 113 such eggs is about 4091.6 cubic centimeters when rounded to the nearest tenth.
Explanation:
To calculate the volume of one green turtle egg, we use the formula for the volume of a sphere, which is V = 4/3 πr³, where r is the radius of the sphere. Since the egg has a diameter of 4.1 centimeters, the radius is half of that, which is 2.05 centimeters. Plugging this value into the formula gives us V = 4/3 π(2.05 cm)³ ≈ 36.2 cubic centimeters when rounded to the nearest tenth.
Next, we calculate the total volume of eggs laid by one turtle. Since each turtle lays 113 eggs, the total volume is 113 × 36.2 cm³ = 4091.6 cm³, which rounds to 4091.6 cubic centimeters.
Divide $414 into three parts such that first one is two-third of the second and the ratio between second and third is 5 : 7.
Answer:
$90, $135, $189
Step-by-step explanation:
Since the first part of the ratio is two- thirds of the second, then
first part = [tex]\frac{2}{3}[/tex] × 5 = [tex]\frac{10}{3}[/tex]
The ratio is then
[tex]\frac{10}{3}[/tex] : 5 : 7
Sum the 3 parts of the ratio
[tex]\frac{10}{3}[/tex] + 5 + 7 = [tex]\frac{46}{3}[/tex]
Divide the amount to be shared by the sum to find the value of one part of the ratio.
$414 × [tex]\frac{3}{46}[/tex] = $27 ← value of 1 part of the ratio, then
[tex]\frac{10}{3}[/tex] × $27 = $90
5 × $27 = $135
7 × $27 = $189
The 3 parts are $90, $135, $189
What is the volume of the figure if a=5 units and b=8. Show work please!! Also sorry for the bad quality.
Answer:
325 sq. units
Step-by-step explanation:
top shape vol.: 5*5*5=25*5=125
bottom shap vol.:8*5*5=40*5=200
combined they are 325
Answer:
325 units ³
Step-by-step explanation:
Volume of cube = Length × Width × Height
Volume of cube = 5 × 5 × 5
Volume of cube = 125 units ³
Volume of cuboid = Length × Width × Height
Volume of cuboid = 8 × 5 × 5
Volume of cuboid = 200 units ³
Total volume = 125 + 200 = 325 units ³
a. y=1/2x-2
b. y=-1/2x+3
c. y=2x+1
d. y= -2x+4
d. y=-2x+4
this is because in the formula used y=mx+b, b is represented as the the "y" intersept, which is 4. the slope, which is -2, is represented as x in this formula. therefore, D. y=-2x+4 is the correct answer
Evaluate the expressions for x=6 3x +5= ? X^3-10=?
Answer:
x^3-10 is greater
Step-by-step explanation:
3(6)+5=18+5=23
6^3-10=206
206>23
How many 1/3 -cup servings are in 4 cups
There is 12 1/3-cups in 4 cups
To determine how many 1/3-cup servings are in 4 cups, you divide 4 cups by 1/3 cup per serving, resulting in 12 servings of 1/3 cup each.
Explanation:The question asks how many 1/3-cup servings are in 4 cups. To find the answer, we divide the total number of cups by the size of each serving. Here, we have 4 cups total, and we want to know how many 1/3 cup servings that equates to.
To calculate:
4 cups ÷ (1/3 cup/serving) = 4 ÷ (1/3) = 4 × 3 = 12 servings.
Therefore, there are 12 servings of 1/3 cup in 4 cups.
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Write all the factors of 35
.
Use commas to separate them.
Factors of 35 :
1, 5, 7, 35
Answer:
1,5
Step-by-step explanation:
Need help ASAP!!!!!!!
D
Step-by-step explanation:
2/6 is litterally right there cause it has seven lines and tge 0 doesnt count
Anyone know the answer? Much appreciate the help!!
Answer:
[tex]x=3+\frac{\sqrt{4L^{2}+1}}{L}[/tex] and [tex]x=3-\frac{\sqrt{4L^{2}+1}}{L}[/tex]
Step-by-step explanation:
we have
[tex]L=\frac{1} {\sqrt{x^2-6x + 5}}[/tex]
Solve for x
That means-----> isolate the variable x
squared both sides
[tex]L^{2} =(\frac{1} {\sqrt{x^2-6x + 5}})^{2}\\ \\L^{2}=\frac{1} {{x^2-6x + 5}}\\ \\x^2-6x + 5=\frac{1}{L^{2}}\\ \\x^2-6x=\frac{1}{L^{2}}-5\\ \\x^2-6x+9=\frac{1}{L^{2}}-5 +9\\ \\x^2-6x+9=\frac{1}{L^{2}}+4\\ \\(x-3)^2=\frac{4L^{2}+1}{L^{2}}[/tex]
Take the square root both sides
[tex](x-3)=(+/-)\sqrt{\frac{4L^{2}+1}{L^{2}}}\\ \\x=3(+/-)\frac{\sqrt{4L^{2}+1}}{L} [/tex]
therefore
[tex]x=3+\frac{\sqrt{4L^{2}+1}}{L}[/tex]
[tex]x=3-\frac{\sqrt{4L^{2}+1}}{L}[/tex]
Six men completed a task in 24 hrs and 48 min. How long, in hours and minutes, would it take four men to complete the same task?
Answer:
It would take 4 men 37 hrs and 12 mins to complete the same task.
step-by-step explanation:
Let X be the time the four men would use to complete the task.
From the question, 6 men completed a task in 24 hrs and 48 mins
But
[tex]24 \: hrs \: 48 \: mins = 24(60mins) + 48 \: mins=1488 \: mins[/tex]
Using ratio and proportion
[tex]6 \: men:1488 \: mins[/tex]
[tex]4 men:x\:mins[/tex]
if more, less divides and if less, more divides.
4 men required more time to complete the task
Hence:
[tex]x = \frac{6}{4} \times 1488 \: mins[/tex]
[tex]x = 2232 \: mins[/tex]
x = 37 hrs 12 mins
The city council is planning to construct a park on North Street that has a triangular perimeter. They want to place a fountain at a point equidistant from all three sides of the park. Where should the council place the fountain?
A.
at the point of intersection of the angle bisectors and perpendicular bisectors of the park
B.
at the center of the inscribed circle of the park
C.
at the center of the circumscribed circle of the park
D.
at the point of intersection of the lines perpendicular to two sides of the park
E.
at the point of intersection of the medians of the park
B.
At the center of the inscribed circle of the park
Answer:
B
Step-by-step explanation:
that would be B. This circle touches each side of the triangle and has a center which is equidistant from all of the sides.
Solve the inequality. Graph the solution . -1.6 < m/-2.5
Required sοlutiοn of inequality οf -1.6 < m/-2.5 is m < 4
Here given,
We can begin by multiplying bοth sides οf the inequality by -2.5:
[tex]$-1.6\lt \sm < {\frac{m}{-2.5}}$[/tex]
Sο the sοlutiοn tο the inequality is m < 4.
[tex]$\begin{array}{l}{{\rm -1.6 < \dfrac{m}{-2.5}}}\\\\ {{\rm -1.6\times\left(-2.5\right) \gt > m}}\\\\ {{\rm 4\gt > m}}\end{array}$[/tex]
Tο graph this sοlutiοn, we can plοt a number line with an οpen circle at 4, since m is nοt equal tο 4. Then we shade the part οf the number line tο the left οf 4, indicating all values οf m that satisfy the inequality.
The graph shοws that all values οf m tο the left οf 4, including 4 itself, satisfy the inequality.
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To solve the inequality -1.6 < m/-2.5, we multiply both sides by -2.5 and reverse the inequality sign, resulting in m being less than 4. This solution can be graphed on a number line with an open circle at 4 and shading to the left.
Explanation:To solve the inequality -1.6 < m/-2.5, we need to manipulate the inequality to isolate the variable m.
First, multiply both sides of the inequality by -2.5 to get m by itself. Remember, when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol. So:
The inequality now reads as m is less than 4.To graph this solution, draw a number line and make an open circle at 4, indicating that 4 is not included in the solution. Then, shade everything to the left of 4 to represent all the numbers that are less than 4.
67,124 x = ________. Will the product of this equation be less than or greater than 67,124? Explain your reasoning.
The product could be either less than or greater than 67,124.
If you multiplied by a negative number, you would get a negative number, which is less than a positive number such as 67,124.
If you multiplied by zero, you would get zero, which is less than a positive number such as 67,124.
If you multiplied by one, you would get 67,124, which is equal to 67,124 since they are the same number.
If you multiplied by a positive number less than one, you would get a positive number greater than zero and less than 67,124.
If you multiplied by a positive number greater than one, you would get a positive number greater than 67,124.
In the expression a = k/b, what is k
Answer:
k=ab
Step-by-step explanation:
a=k/b
a(b)=(k/b)(b)---multiple b to both sides to isolate k
k=ab
Answer:
k is the constant of variation.
Step-by-step explanation:
In direct variation:
[tex]y\propto x[/tex]
[tex]y=kx[/tex]
In inverse variation:
[tex]y\propto \frac{1}{x}[/tex]
[tex]y=\frac{k}{x}[/tex]
[tex]yx=k[/tex]
In both cases k is the constant of variation
The given equation is
[tex]a=\frac{k}{b}[/tex]
We need to find the value of k in this equation.
First we have to isolate k on one side of the equation.
Multiply both sides by b to isolate k on right side.
[tex]a\times b=\frac{k}{b}\times b[/tex]
Cancel out the common factors.
[tex]ab=k[/tex]
Interchange the sides of the equation.
[tex]k=ab[/tex]
It means a and b are inversely proportional.
Therefore, the k is the constant of variation.
Sixty-two desks can be assembled in 108.5 hours. At this rate, about how many desks can be assembled in 250 hours? Round to the nearest whole number.
Answer:
143 desks
62 desks
108.5 hours
=
x desks
250 hours
15500 = 108.5x
142.8 = x
Round to 143
Step-by-step explanation:
Answer:
In 250 hours 143 seats can be assembled.
Step-by-step explanation:
62 desks can be assembled in 108.5 hours.
In 108.5 hours 62 desks can be assembled.
In 1 hour [tex]\dfrac{62}{108.5}[/tex] seats can be assembled.
In 250 hours [tex]\dfrac{62}{108.5}\times 250[/tex] seats can be assembled.
In 250 hours 142.86 seats can be assembled.
Hence, In 250 hours 143 seats can be assembled. (Round to nearest whole number)
Which reason for step 4 completes the proof?
Prove: -(a + b) + a = -b
Answer:
Identity Property of Addition.
Answer:
Reason which completes the proof of step 4 is:
Identity property of addition
Step-by-step explanation:
-(a+b)+a= -b
= -a+ (-b)+a (distributive property)
= -a+a+(-b) (Commutative property of Addition)
= 0+ (-b) (Additive inverse property)
= -b (Identity property of addition)
(Identity property of addition says that if 0 is the identity element and a is any element
Then, a+0=0+a=a)
So, reason which completes the proof of step 4 is:
Identity property of addition
If a normal distribution has a mean of 44 and a standard deviation of 8, what is the zscore for a value of 50
Answer:
0.75
Step-by-step explanation:
Z-score tells the no. of standard deviations a data point is from the mean.
the formula for z score is given by
z-score= (data value - mean) / standard deviation
Given:
mean=44
standard deviation= 8
data point=50
putting the values of mean(44), standard deviation(8) and given data value(50) in the above equation
z-score= (50-44)/8
= 6/8
=0.75 !
A logarithmic function is an appropriate model because, for evenly spaced y-values, the ___ of consecutive x-values is constant.
Answer:
Ratio.
Step-by-step explanation:
A logarithmic function is an appropriate model because, for evenly spaced y-values, the ratio of consecutive x-values is constant. This is the correct answer to your question.
Hope this helps!!!
Kyle.
Answer:
Step-by-step explanation:
Whenever a function is logarithmic function, we get for evenly spaced y,
say y = log x
y+d = log x1
y+2d = log x2
We get
d = [tex]log \frac{x_1}{x} =log \frac{x_2}{x_1}[/tex]
In other words we get the ratios of consecutive x values is constant equal to the difference in consecutive y's.
Please help with this probability question and if you could explain how to get the answer in order for me to understand!
Thank you
Answer:
Expected value = $8.89
Step-by-step explanation:
cost of playing game = $1
winning if sum is odd = $10
winning if sum is 4 or 8 = $5
winning if sum is 2 or 12 = $50
two dice rolled, possible outcomes =
(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)
(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)
(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)
(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)
(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)
(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)
total no. of outcomes = 36
now according to the table of outcome with respect to winning money, we can calculate expected value by multiplying the probability of each roll with winning amount associated with each roll. and subtract the amount that we paid for the game that is $1.
E(x) = 1/36*($50) + 1/18*($10) + 1/12*($5) + 1/9*($10) + 5/36*($0) + 1/6*($10) + 5/36*($5) + 1/9*($10) + 1/12*($0) + 1/18*($10) + 1/36*($50)
= 25/18 + 5/9 + 5/12 + 10/9 + 0 + 5/3 + 25/36 + 10/9 + 0 + 5/9 + 25/18
Expected value = $8.89
Subtract the amount that was paid to play the game that is $1.
$8.89 - $1 = $7.89
A profit of $7.89 is expected every-time the game is played.
Select the simplification that accurately explains the following statement.
I NEED HEELP THIS IS A PLATOWEB QUESTION
Answer:
Choice C is correct
Step-by-step explanation:
We use the law of exponents in this problem;
[tex](a^{b})^{2}=a^{b}*a^{b}[/tex]
Therefore,
[tex](9^{\frac{1}{2} })^{2}=9^{\frac{1}{2} }*9^{\frac{1}{2} }[/tex]
Since the base is the same, that is 9, we simply add the exponents 1/2;
[tex]9^{\frac{1}{2}+\frac{1}{2} }[/tex]
one-half plus one-half is equal to unity and any number raised to one is simply equal to the given number;
[tex]9^{1}=9[/tex]
22n=418
what is the vaule of n.
Answer:
n = 19
Step-by-step explanation:
22n = 418
Divide both sides by 22.
n = 19
Graphs, please help. Thank you!
Answer:
B. [tex]F(x)=(x+2)^4[/tex]
Step-by-step explanation:
The parent function is [tex]G(x)=x^4[/tex]
The given translation is of the form;
This shifts the graph of [tex]G(x+k)[/tex] [tex]G(x)=x^4[/tex], k units to the left.
If this function is shifted 2 units to the left, its equation will now be
[tex]F(x)=(x+2)^4[/tex]
The correct choice is B. [tex]F(x)=(x+2)^4[/tex]
need help asap !! if u could explain how u got your answer it would be greatly appreciated.
The volume of a cylinder is 64π cubic centimeters. If the radius of the cylinder is 4 cm, what is the height of the cylinder? (V = πr2h)
A) 2 cm
B) 3 cm
C) 4 cm
D) 6 cm
Answer:
C) 4 cm
Step-by-Step Explanation:
1. - Identify variables:
V = πr²h
V = 64π
r = 4
h = ?
2. - Substitute:
64π = π(4)²h
3. - Solve for h:
64π / π = 16hπ / π
64 = 16h
64 / 16 = 16h / 16
4 = h
4. - State your answer:
h = 4 cm
Hope this helps!
By how much does the median of the data set 12, 9, 9, 11, 14, 28 change if the outlier is removed?
Hi there! Here's the answer and how I got that answer!!
Answer:
11
The change in the Median would be 11 instead of 11.5 because the total amount of numbers became odd when the outlier is removed. This allowed for the step of having to solve for two middle numbers to be avoided and therefore only leave you with the answer simple as 11 instead of having to solve between two numbers!
Step-by-step explanation:
With all the numbers (including the outlier) the median would be 11.5.
Here's how:
First sort least to greatest and cancel out the numbers until you get to the one on the middle.
9, 9, 11, 12, 14, 28
If you have two middle numbers add them together and then divide by two.
11+12=23
23/2= 11.5
So your median with the outlier is 11.5.
Now if you take out the outlier, which in this case I'm assuming its 28. Let's re-look for the median once more!
First sort least to greatest and cancel out the numbers until you get to the one on the middle.
9, 9, 11, 12, 14
Now because there is an odd amount of numbers your left to only one middle number, 11.
This means if the outlier is removed the median would change to be 11.
I hope this helps, have a stupendous day!! ☆*:.。.o(≧▽≦)o.。.:*☆
7, 9, 11, 13...
Generalize the pattern by finding an explicit formula for the nth term.
Answer:
an = 5 + 2n
Step-by-step explanation:
Each time it increases by the same amount (2), so this is an arithmetic sequence:
an = a₁ + d (n - 1)
Given a₁ = 7 and d = 2:
an = 7 + 2 (n - 1)
an = 7 + 2n - 2
an = 5 + 2n
Check our answer:
n=1: a₁ = 5 + 2(1) = 7
n=2: a₂ = 5 + 2(2) = 9
n=3: a₃ = 5 + 2(3) = 11
n=4: a₄ = 5 + 2(4) = 13
The pattern represents the arithmetic progression and the explicit formula for the nth term is a(n) = 2n + 5
What is a sequence?It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.
We have a sequence:
7, 9, 11, 13…
The above pattern represents the arithmetic progression.
The first term a = 7
Common difference d = 2
nth term:
a(n) = 7 + (n - 1)(2)
a(n) = 2n + 5
Thus, the pattern represents the arithmetic progression and the explicit formula for the nth term is a(n) = 2n + 5
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1 3/5(t-6)=-0.4 solve the equation
To solve the equation 1 3/5(t-6)=-0.4, first distribute 1 3/5 to the terms inside the parentheses. Then, multiply both sides of the equation by the reciprocal of 8/5 to isolate the variable t. Finally, simplify the equation to find the solution t = 5.75.
Explanation:To solve the equation 1 3/5(t-6)=-0.4, we can follow these steps:
Distribute 1 3/5 to the terms inside the parentheses. This gives us 8/5(t-6)=-0.4.Multiply both sides of the equation by the reciprocal of 8/5, which is 5/8, to cancel out the coefficient on the variable. This gives us t-6 = -0.4 * 5/8.Simplify the equation by multiplying and dividing as necessary. This gives us t-6 = -0.25.Add 6 to both sides of the equation to isolate the variable t. This gives us t = -0.25 + 6.Simplify the equation to find the final solution. This gives us t = 5.75.Therefore, the solution to the equation is t = 5.75.
Final answer:
To solve the equation 1 3/5(t-6)=-0.4, distribute the 1 3/5 first and then simplify the equation by adding and subtracting terms to isolate t. The final solution is t = 2.
Explanation:
To solve the equation 1 3/5(t-6)=-0.4, we can begin by distributing the 1 3/5 to the terms inside the parentheses:
1 3/5(t-6) = 1 3/5 * t - 1 3/5 * 6 = 8/5t - 18/5
Now, we can rewrite the equation as:
8/5t - 18/5 = -0.4
Next, we can get rid of the fraction by multiplying both sides of the equation by 5:
5(8/5t - 18/5) = 5(-0.4)
After simplifying, we get:
8t - 18 = -2
Now, add 18 to both sides of the equation:
8t - 18 + 18 = -2 + 18
Simplifying further, we have:
8t = 16
Finally, divide both sides of the equation by 8 to solve for t:
t = 16/8
Therefore, the solution to the equation is t = 2.