Answer:
5/8
Step-by-step explanation:
20:32 .... 10:16..... 5:8.
7 is an unending decimal. Find the
circumference of the circle below using
exact TT
12
C = [?]
C=πd
Answer:
Solution given;
diameter[d]=12
we
have
circumference of circle=πd=12π
12 is a required answer.
_________
#LetsStudy
Can you help me plisss:(
Step-by-step explanation:
x = (7±√193)/18
The triangle below is equilateral. Find the length of side x in simplest radical
form with a rational denominator.
5
Answer:
x = 10
Step-by-step explanation:
In an equilateral triangle, the altitude, or height is also the median and angle bisector. So, we can say a side of the equilateral triangle is 2 x 5 or 10. Every side of an equilateral triangle is congruent, so x is 10.
Select the correct answer.
Solve the following inequality for x.
x - 9 ≤ 2(9 - x)
A. x ≤ 9
B. x ≥ 11
C. x < -7
D. x < 1
x - 9 ≤ 2(9 - x)
x - 9 ≤ 18 - 2x
3x - 9 ≤ 18
3x ≤ 27
x ≤ 9
(just handle it like an equation)
Which expression is equivalent to 30 (1/2 x-2)+40(3/4y-4)
Answer:
15x+30y-220
Step-by-step explanation:
Find the missing terms.
3, _____, _____, 21 (arithmetic)
Answer:
3, 9, 15, 21
Step-by-step explanation:
3x1=3 v
3x2=6
3x3=9 v
3x4=12
3x5=15 v
3x6=18
3x7=21 v
Skip one each time, 3, 9, 15, 21
Quieres un chocolate?
Please help reply correctly in Spanish
Answer:
sí, (yo) quiero un chocolate
peter is 13 years old peters father is 6 years more than twice her age. how old is Peter's father
Answer:
32 years old.
Step-by-step explanation:
13 times 2 is 26, and 6 added to 26 is 32.
I hope this helps, have a nice day.
Help pls, the question is in the picture. I'm to lazy to do the math today. I hate math.
Answer:
C
Step-by-step explanation:
Both models represent half of the gymnasium, its just that one is vertical and one is horizontal. Both are basically correct. C is the right answer since it says both models are correct. Each class also does occupy 1/12 of the gymnasium since they get 1/6 of 1/2 of the gymnasium. Of means multiply so 1/6 * 1/2 = 1/12.
Drink coffee Do not drink coffee Total Drink water 0.3 0.24 0.54
Do not drink water 0.25 0.21 0.46 Total 0.55 0.45 1.00
Let A represent drinking coffee and B represent drinking water.
Which statement is true?
Drinking coffee and drinking water are not independent events because P(A|B)≠P(A)and P(B|A)≠P(B).
Drinking coffee and drinking water are not independent events because P(A|B)=P(A) and P(B|A)=P(B).
Drinking coffee and drinking water are independent events because P(A|B)≠P(A) and P(B|A)≠P(B) .
Drinking coffee and drinking water are independent events because P(A|B)=P(A)and P(B|A)=P(B).
Answer:
Drinking coffee and drinking water are independent events because
P(A|B)=P(A)and P(B|A)=P(B)
Step-by-step explanation:
Drinking coffee and water are independent events. People can choose to have both, none or any one. It is on their own will. Those who drink coffee can also drink water. The total of people who drink coffee may include those who drink water also.
An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, the altitude cuts the base into two equal segments. The length of the altitude is 26 inches, and the length of the base is 9 inches. Find the triangle’s perimeter. Round to the nearest tenth of an inch.
Answer:
The triangle's perimeter is 61.77 inches.
Step-by-step explanation:
Since an altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles, and as a result, the altitude cuts the base into two equal segments, and the length of the altitude is 26 inches, and the length of the base is 9 inches, to find the triangle's perimeter the following calculation must be performed:
Isosceles triangle = 2 equal sides
To obtain the value of the sides, the Pythagorean theorem must be applied on the right triangle formed with the altitude.
(9/2) ^ 2 + 26 ^ 2 = X ^ 2
4.5 ^ 2 + 26 ^ 2 = X ^ 2
20.25 + 676 = X ^ 2
√ (20.25 + 676) = X
√696.25 = X
26.38 = X
26.3865 x 2 + 9 = X
52.77 + 9 = X
61.77 = X
Therefore, the triangle's perimeter is 61.77 inches.
Evaluate the function graphically. Find (-6)
Answer:
5
Step-by-step explanation:
just see where x=-6
How many centimeters are equal to 7 meters? Enter your answer in the box.
Answer:
56 but i could be wrong
Step-by-step explanation:
PLEASE I NEED HELP! ILL GIVE BRAINLIEST!
Answer:
Your answer is correct
Step-by-step explanation:
B. 112 degrees
Answer:
x = 112
Step-by-step explanation:
x and 68 are supplementary angles so they add to 180
x+68 = 180
x = 180 -68
x = 112
What is the value of Y if x=1
Answer:
y=6
the first equation:
3(1)+y=9
3+y=9
y=6
the second equation:
y= -4(1)+10
y= -4+10
y=6
I hope this helped! :)
Graded Assignment Unit Test, Part 2: More Math Models Answer the questions. When you have finished, submit this assignment to your teacher by the due date for full credit. Total score: ____ of 18 points (Score for Question 1: ___ of 10 points) 1. There are 400 rice weevils at the beginning of an insect study. The population is expected to grow at a rate of 150% each week. (a) Write and simplify a formula that can be used to predict the rice weevil population for any week after the beginning of the study. (b) Use the formula to predict the rice weevil population 10 weeks after the beginning of the study. Show your work. (c) Use the formula to predict when the rice weevil population will reach 1,000,000,000. Show your work. Answer:
Answer:
Y(n) = 400(2.5)^n
Y = 3,814,697 rice weevils
16.1 weeks
Step-by-step explanation:
To predict the population of rice weevil for any week after the start of the study ; wwe use an exponential function for this purpose :
y(n) = A(1 + r)^n
Where;
Y(n) = population at week n
r = growth rate ; n = number of weeks
A = initial population at the start of the study
r = 150% = 1.5
Hence, we have the equation :
Y(n) = 400(1 + 1.5)^n
Y(n) = 400(2.5)^n
B.)
Population after 10 weeks
n = 10
Y(10) = 400(2.5)^10
Y = 400 * 9536.7431640625
Y = 3814697.265625
Y = 3,814,697 rice weevils
C)
When population will reach 1,000,000,000
We have :
1,000,000,000 = 400(2.5)^n
1000000000 / 400 = 2.5^n
2500000 = 2.5^n
Take the log of both sides :
log(2500000) = nlog(2.5)
6.3979400 = n * 0.3979400
n = 6.3979400 / 0.3979400
n = 16.077649
n = 16.1 weeks approximately
Weekly wages at a certain factory are
normally distributed with a mean of
$400 and a standard deviation of $50.
Find the probability that a worker
selected at random makes between
$300and $350
Answer:
2.35
Step-by-step explanation:
Patrick is keeping track of how far he jogs each morning.
Use a ratio in lowest terms
to represent how much
farther he ran today
The ratio of
420 m to 1 km =
Answer:
21:50
Step-by-step explanation:
We need to find the ratio of 420 m to 1 km.
We know that,
1 km = 1000 m
So,
The ratio becomes,
[tex]\dfrac{420\ m}{1\ km}=\dfrac{420\ m}{1000\ m}\\\\=\dfrac{42\ m}{100\ m}\\\\=\dfrac{21}{50}[/tex]
So, the required ratio is 21:50.
The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has an approximate normal distribution with mean 50 and a standard deviation 10. Use the Empirical Rule to determine the approximate proportion of 1-mile long roadways with potholes numbering between 20 and 70.
Answer:
The approximate proportion of 1-mile long roadways with potholes numbering between 20 and 70 is 0.9735.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 50, standard deviation = 10.
Between 20 and 70.
The normal distribution is symmetric, which means that 50% of the measures are below the mean and 50% are above.
20
20 = 50 - 3*10
So 20 is 3 standard deviations below the mean. Of the 50% of the measures below the mean, 99.7% are within 3 standard deviations of the mean, that is, above 20.
70
70 = 50 + 2*10
So 70 is 2 standard deviations above the mean. Of the 50% of the measures above the mean, 95% are within 2 standard deviations of the mean, that is, below 70.
Percentage:
0.997*50% + 0.95*50% = 97.35%
As a proportion, 97.35%/100 = 0.9735.
The approximate proportion of 1-mile long roadways with potholes numbering between 20 and 70 is 0.9735.
what is the sum of all the negative integers that are greater than -5?
Answer:
-10
Step-by-step explanation:
The negative integers greater than -5 are: -4, -3, -2, and -1. So,
(-4)+(-3)+(-2)+(-1) = -10
Pls Help! I will give Brainliest!
Answer:
45 = 3z
Step-by-step explanation:
On the left we have 45
On the right we have 3 z's
45 = 3z
Answer:
45 = 3 z
Step-by-step explanation:
LHS = 45RHS = z + z + z = 3 zLHS = RHS.
45 = 3 z
A bag contains 6 blue coins and 7 red coins. A coin is removed at random and replaced by three of the other color.
Part 1 out of 3
What is the probability that the removed coin is blue? Enter your answer as a simplified fraction.
The probability that the removed coin is blue is ———
Please help with imaginary numbers worksheet!
Problem 5
Answer: 6i------------------
Explanation:
We have these four identities
i^0 = 1i^1 = ii^2 = -1i^3 = -iNotice how computing i^4 leads us back to 1. So i^4 = i^0. The pattern repeats every 4 terms. So we divide the exponent by 4 and look at the remainder. We ignore the quotient entirely. We can see that 28/4 = 7 remainder 0. Meaning that i^28 = i^0 = 1.
We can think of it like this if you wanted
i^28 = (i^4)^7 = 1^7 = 1
Then the sqrt(-36) becomes 6i
So overall, we end up with the final answer of 6i
=============================================
Problem 6
Answer: -3i------------------
Explanation:
We'll use the ideas mentioned in problem 5
46/4 = 11 remainder 2
i^46 = i^2 = -1
sqrt(-9) = 3i
The two outside negative signs cancel out, but there's still a negative from -1 we found earlier. So we end up with -3i
In other words, here is one way you could write out the steps
[tex]-i^{46}*-\sqrt{-9}\\\\-i^{2}*-3i\\\\i^{2}*3i\\\\-1*3i\\\\-3i\\\\[/tex]
=============================================
Problem 7
Answer: -1------------------
Work Shown:
i^10 = i^2 because 10/4 = 2 remainder 2
i^19 = i^3 because 19/4 = 4 remainder 3
i^7 = i^3 because 7/4 = 1 remainder 3
Again, all we care about are the remainders.
[tex]i^{10}+i^{19} - i^{7}\\\\i^{2}+i^{3} - i^{3}\\\\i^{2}\\\\-1[/tex]
=============================================
Problem 8
Answer: -1 + i------------------
Work Shown:
i^22*i^6 = i^(22+6) = i^28
Earlier in problem 5, we found that i^28 = i^0 = 1
So,
[tex]i^1 - \left(i^{22}*i^{6}\right)\\\\i^1 - i^{28}\\\\i^1 - i^{0}\\\\i - 1\\\\-1+i[/tex]
(x+3)²+(y+1)²=2 jjjjjjjjjjjju
Answer:
x²+y²+6x+2y = -8
Step-by-step explanation:
The given equation is:
(x+3)²+(y+1)²=2
We know that, (a+b)² = a²+b²+2ab
Using above property
x²+9+6x+y²+1+2y = 2
x²+y²+6x+2y+10 = 2
x²+y²+6x+2y = -8
Hence, this is the required solution.
Which set of side lengths forms a right triangle?
O 2,3, 13
O 4,6, 10
O 9, 12, 18
O 15, 36, 39
Awnser:
9,12,18
Step-by-step explanation:
you have to add the smallest numbers together and it has to be greater that the greatest number.
9+12= 21
21>18
Find the area of the regular polygon. Round to the nearest tenth
Hurry plz what is the following prouduct?
Answer:
2nd one
Step-by-step explanation:
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
Answer:
A
Step-by-step explanation:
The figure below shows a circle with segment AB as it's diameter. The center of the circle is NOT known. A square needs to be inscribed in the circle with A and B as a pair of opposite vertices.
Which step will be used in the construction? PLEASE HELP
A. constructing four arcs on the circles circumference with the compass width as the radius
B. constructing a segment that is tangent to the circle at point A
C. constructing a perpendicular to a line segment through a point not lying on it.
D. constructing a perpendicular bisector of a line segment.
Answer:
its b i took the test
Step-by-step explanation:
Simplify the expression:
4g+1+10g+8g
Answer:
22g+1
Step-by-step explanation:
collect like terms
22g+1
Answer:22g+1
Step-by-step explanation:
1. In two similar triangles, find the ratio of:
b. the perimeter, if the areas are 50cm and 16cm.
Answer:
54cm and 36cm
Step-by-step explanation:
triangle a : triangle b
50cm² : 16cm²
25 : 8
thus,
area of triangle a :
2cm×25cm
=50cm²
area of triangle b :
2cm×16cm
=32cm²
then,
perimeter of triangle a:
2cm+2cm+25cm+25cm
=54cm
perimeter of triangle b:
2cm+2cm+16cm+16cm
=36cm