Answers
Related Questions
find the value of X need help soonnn
Answers
12^2 + 8^2 = C^2
144 + 64 = C^2
208= C^2
Then,
208 = 2 × 2 × 2 × 2 × 13.
√208 = √( 2 × 2 × 2 × 2 × 13)
√208 = √(4 × 4 × 13)
√208 = 4√13.
Calculate the base length of the isosceles triangular pieces
Answers
The base length of the isosceles triangular pieces with height 8 cm, side length 4cm and area of triangle is 64 cm² is equals to the 16 cm.
Isoceles triangle: The two sides of triangle which are equal in length are called "legs". In case of isosceles triangle, ABC (present above), AB and AC are the called "legs".
The third side of an isosceles triangle is called "base" of it. In above triangle ABC, BC is the base of the isosceles triangle.Steps to calculate the base of the triangle :
The area of the triangle multiplied by 2. Measure the height of the triangle.Divide the result of step 1, by the height.The new result is the base of the triangle.Now we have an isosceles triangle,
height of isosceles triangle, h = 8 cm
area of isosceles triangle, A = 64 cm²
we know that area of isosceles triangle
= ½ x base x height
=> base triangle = (2 x area of triangle)/ height
Substituting all known values,
=> base length of triangle = 2 x 64/8
=> base length = 16 cm
Hence, required base length is 16 cm.
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Complete question:
Calculate the base length of the isosceles triangular pieces with height 8 cm, side length 4cm and area of triangle is 64 cm².
It is assumed that approximately​ 15% of adults in the u.s. are​ left-handed. consider the probability that among 100 adults selected in the​ u.s., there are at least 30 who are​ left-handed. given that the adults surveyed were selected without​ replacement, can the probability be found by using the binomial probability formula with x counting the number who are​ left-handed? why or why​ not?
a. Yes, because the 100 adults represent less than 5% of the U.S. adult population, the trials can be treated as independent.
b. No, because the 30 adults represent more than 5% of the sample size, the trials are dependent.
c. No, because the 100 adults were selected without replacement, the selections are dependent.
d. No, because the probability of being right-handed is greater, x must count the number of right-handed adults.
Answers
No, the probability be found by using the binomial probability formula with x counting the number who are left-handed. The correct option is (c) No, because the 100 adults were selected without replacement, the selections are dependent.
The binomial distribution assumes that the trials are independent, meaning that the outcome of one trial does not affect the outcome of any other trial. However, in this case, the 100 adults were selected without replacement, which means that the outcome of one selection affects the probability of the next selection. Therefore, the trials are dependent, and the binomial probability formula cannot be used.
Instead, we can use the hypergeometric distribution to calculate the probability of at least 30 left-handed adults in a sample of 100 adults selected without replacement from the U.S. population. The hypergeometric distribution takes into account the fact that the selections are dependent and is appropriate for this type of problem.
Therefore, the correct option is (c) No, because the 100 adults were selected without replacement, the selections are dependent.
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A rescue organization saved 472 people after a hurricane wiped away their homes. If 4 people were air-lifted via helicopter and the rest completely filled up nine buses. How many people were in each bus?
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Answer:
52
Step-by-step explanation:
468/9=52
472-4 = 468
468/9 = 52
4. Find the solution of the following equations:
a) x + 5 = 15
b) 12 – y = 12
c) 3a = 27
d) y/4 = 20
e) 2 + y = 0
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Subtracting 5 from both sides, we get:
x + 5 - 5 = 15 - 5
x = 10
Therefore, the solution is x = 10.
b) 12 – y = 12
Subtracting 12 from both sides, we get:
12 - 12 - y = 12 - 12
-y = 0
Multiplying both sides by -1, we get:
y = 0
Therefore, the solution is y = 0.
c) 3a = 27
Dividing both sides by 3, we get:
a = 9
Therefore, the solution is a = 9.
d) y/4 = 20
Multiplying both sides by 4, we get:
y = 80
Therefore, the solution is y = 80.
e) 2 + y = 0
Subtracting 2 from both sides, we get:
y = -2
Therefore, the solution is y = -2.
slope = -3/5; y-intercept = 4
Answers
Answer:
y= -3/5m+4
Explanation:
what are you asking
Answer:
what is the poblem?
Step-by-step explanation:
What is the value of 2x to the power of 2 when x = 1.5?
15.0
4.45
4.50
450
Answers
Answer: 4.50 Look at the picture
Step-by-step explanation: Hope this help :D
Add the fractions:
1/3 + 1/5 =
Answers
Answer:
8/15
Step-by-step explanation:
Answer:
You would get 8/15
Step-by-step explanation:
Find a common denominator:
5/15 + 3/15 = 8/15
Suppose there is a 1 in 100 chance to win money on a lottery ticket. 30 lottery tickets are bought. What is the probability that none of the tickets wins?
0.2603
0.001
0.6153
0.7397
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solve the equation 4-t+=3(t-1)-5
Answers
Answer:
use the picture to solve the equation
Answer:
Step-by-step explanation:
4-t=3t-3-5
-t-3t= -8-4
-4t=-12
t=12/4
t=3
Good luck!
can anyone explain how to find slope?
Answers
Answer:
Step-by-step explanation:
Answer:
sure
Step-by-step explanation:
so you will have to use m= rise/ run and for ex if you have the points (4,6) and (-3,3) you would lable 4 as x1, 6 as y1, -3 as x2, and finally 3 as y2 then you would use this form to find slope m= y2-y1/ x2-x1 then you would plug in numbers 3 - 6/ -3 - 4 then you would do the math and get -3/-7 (2 negatives equal a positive) so you would get 3/7 and theres the slope the slope is 3/7
I'll give you 23 points
Answers
-2x=-12
X=6
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If the 95% confidence interval for the likelihood of an unsatisfied customer is 0.077 to 0.138:
A.
If we remain stable the next satisfaction survey will show a rate of unsatisfaction between 0.077 and 0.138
B.
We are 100% sure that the true likelihood of an unsatisfied customer is between 0.077 to 0.138
C.
There is a 5% chance that the true likelihood of an unsatisfied customer will be less than 0.077 or greater than 0.138
D.
The actual results will always exceed the taget.
Answers
The option C is correct answer which is there is a 5% chance that the true likelihood of an unsatisfied customer will be less than 0.077 or greater than 0.138.
What is unsatisfied customer?
Consumer customers are "an expression of dissatisfaction on a consumer's behalf to a responsible party," according to the dictionary. It can also be positively stated as a complaint from a customer who provides proof of a fault with a good or service.
As given,
95% confidence interval gives you 95% confident that unsatisfied customer is in between 0.077 to 0.138.
that means 5% chance that unsatisfied customer is not between intervals.
So, we can say 5% chance that true likelihood of an unsatisfied customer will. be less than 0.077 or greater than 0.138.
Hence, the option C is correct answer.
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1)
What number is 4 times as many as 25?
Answers
Answer:
100
Step-by-step explanation:
Logan is having his dog professionally groomed and wants to tip the groomer 15%
. What equation can Logan use to calculate the tip, y
, if his total bill is x
dollars?
Answers
Step-by-step explanation:
Using simple interest, logan can use the equation:
amount × decimal multiplier = total
x × 1.15 = y
Rosa earns $120 per week tutoring math. Each week, she puts 36$ from her paycheck in a bank account to save for college. Find the amount Rosa saves out of $100.
Answers
Answer:
30
Step-by-step explanation:
You can do 36*100=3600 and do 3600/120. This is a very simple way to get 30 out of 100
Answer: $30
Step-by-step explanation: If she saves $36 when she earns $120, then she saves *amount =36/120 ×100
Amount saved with $100 earning is $30
Which shows the zeros of f(x) = x^2 – x – 2?
A. –1 and –2
B. 1 and –2
C. 1 and 2
D. 2 and –1
Answers
Explanation: To find the zeros of this quadratic function, we can factor or use the quadratic formula.
FACTORING: We need to find 2 numbers that add up to -1 (the coefficient for -x in this function) and multiply to -2 (the constant in this function). -2+1 = -1 and -2•1 = -2. Therefore x^2-x-2 can be factored into f(x)=(x-2)(x+1). To find the zeros, set each factor to zero (x-2=0 and x+1=0) and solve for x. You get 2 and -1.
QUADRATIC FORMULA: The coefficient in x^2 is 1 (a in the quadratic formula), the coefficient of -x is -1 (b in the quadratic formula), and -2 is c in the quadratic formula. Plug all of this into the formula and you get the following: -(-1) plus or minus the square root of (-1)^2 - 4(1)(-2) all over 2(1). Simplify this and you get 1 plus or minus the square root of 9 all over 2. (1+3)/2 is your first zero, 2. (1-3)/2 is your second zero, -1.
Complete the table for the given rule.
Answers
Answer:
2
5
7
Step-by-step explanation:
You are solving for x, so, in the rule y=x/2 you multiply each side of the equation by 2 to get y×2=x.
1×2=x
x=2
2.5×2=x
x=5
3.5×2=x
x=7
Answer:
a) 1= X/2 so X= 2
b) 2.5=X/2 so X= 5
c) 3.5=X/2 so X=7
if anybody could help and show me the work too pls i’m lost :,) just #71
Answers
Answer:
the answer is 8.
Step-by-step explanation:
140/29, then subtract that answer from 12 :)
Triangle STU is translated under the rule (x, y,) ---> (x - 5, y - 3). Write a congruency statement for the two figures.
Answers
Answer:
∆STU≅∆S'T'U'
Step-by-step explanation:
You want a congruency statement for triangle STU and its translated image.
Congruence statementA congruence statement lists the original figure vertices and the congruent image vertices in the same order.
∆STU≅∆S'T'U'
what is the direction of the cross product ?
a. x direction
b. -x direction c.y direction d.-y direction e.z direction f.-z direction
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The direction of the cross product is perpendicular to both of the vectors being multiplied. So, the answer to the question of what is the direction of the cross product could be any of the six options provided (x direction, -x direction, y direction, -y direction, z direction, -z direction), depending on the orientation of the vectors being multiplied.
The direction of the cross product is determined by the right-hand rule. When you have two vectors, A and B, the cross product (A x B) will be perpendicular to both A and B in a third direction. To find this direction, point your fingers in the direction of vector A, and then curl them towards vector B. Your thumb will point in the direction of the cross product. The options you provided (x, -x, y, -y, z, -z) depend on the specific vectors you are working with. In general, the cross product direction will be in the z direction or -z direction for vectors lying in the xy plane.
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Find the missing angle measurement.
a. 28.9
b. 25.8
c. 61.1
d. 64.2
PLEASE HELP
Answers
Answer:
64.2
Step-by-step explanation:
Find the last side of the triangle using the Pythagorean theorem.
Solve the equation for c.
c=√1037
Find B.
The angle B can be found using the inverse sine function.
Substitute in the values of the opposite side to angle
B and hypotenuse √1037 of the triangle.
B=arcsin(29/√1037)
B=64.23067237
HAPPY THANKSGIVING AGAIN I NEED HWLP ASAP
Answers
4. Find each amount:
3.8% of 25
0.2% of 50
180.5% of 99
how do I find and explain this??
Answers
The result of each part is
Part 1
3.8% of 25 is 0.95
Part 2
0.2% of 50 is 0.1
Part 3
180.5% of 99 is 178.695
Part 1
The given expression is
3.8% of 25
Here we have to find the 3.8 percentage of 25
Then the mathematical expression will be
25 × 3.8% = 25 × 3.8/100
= 25 × 0.038
= 0.95
Part 2
The given expression is
0.2% of 50
The mathematical expression will be
50 × 0.2% = 50 × 0.2/100
= 50 × 0.002
= 0.1
Part 3
The expression is
180.5% of 99
The mathematical expression will be
99 × 180.5% = 99 × 180.5/100
= 99 × 1.805
= 178.695
Hence, the result of each part is
Part 1
3.8% of 25 is 0.95
Part 2
0.2% of 50 is 0.1
Part 3
180.5% of 99 is 178.695
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If p(a) = 0.60 and p(b) = 0.20, then a and b are independent events if
a. p(a and b) = 0
b. p(a and b) = 0.12
c. pla or b) = 0.80
d. pa or b) = 0.12
Answers
If A and B are independent variables, P(A and B) =0.12. Therefore, option B is the correct answer.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
Given that, p(a)=0.60 and p(b)=0.20.
If A and B are independent variables,
P(A and B) =P(P∩B)= P(A) × P(B)
Here, P(P∩B)=0.60×0.20
= 0.12
Therefore, option B is the correct answer.
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Complete each of the following statements given z = 1 - 2i and w = -3 + 5i
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The answers would be z + w = -2 + 3i, z - w = 4 - 7i, and w - z = 4 + 7i after adding and subtracting two complex numbers.
What is a complex number?It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.
It is given that:
The complex numbers are:
z = 1 - 2i and w = -3 + 5i
z + w = 1 - 2i - 3 + 5i
z + w = -2 + 3i
z - w = 1 - 2i + 3 - 5i
z - w = 4 - 7i
w - z = 4 + 7i
Thus, the answers would be z + w = -2 + 3i, z - w = 4 - 7i, and w - z = 4 + 7i after adding and subtracting two complex numbers.
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Answer:
3
4
7
Step-by-step explanation:
got it right on edge
kareem finished his math assignment in 1/2 hours. he finished his history assignment in 1/8 hours. how much more time did kareem spend on his math assignment
Answers
Answer:
\( \frac{3}{8} \: hours\)
Step-by-step explanation:
Additional time =
\( \frac{1}{2} - \frac{1}{8} \\ = \frac{4}{8} - \frac{1}{8} \\ = \frac{3}{8} \)
Answer:
3/8 hours is the time to Finnish
Please include a chart similar to the image below. Question is in the image below
Answers
Step-by-step explanation:
Given:
Total distance is 500 kmTotal time is 5 1/2 hThe distance travelled at 100 km/h is xThe distance travelled at 80 km/h is yWe know that:
Time = distance / speedConsidering all the info we can make below chart:
Nikolas' car trip
| at 100 km/h | at 80 km/h | Total |
Distance | x | y | 500 km |
Time | x/100 | y/80 | 5 1/2 h |
The expression 4·81‾‾‾√ gives the perimeter of the square shown. What is the perimeter, in meters, of the square?
Answers
Answer:
The perimeter is 4√81 = 4 × 9 = 36 meters.
Persephone is creating a flower garden in her back yard. If she needs 30 pounds of soil per square foot of the flower garden, how much soil will Persephone need to create her garden? (19 by 8)
Answers
Answer:
4,560 pounds of soil per square foot
Step-by-step explanation:
19 × 8 = 152
152 × 30 = 4,560