Answer: 4π cm or 12.56 cm
Step-by-step explanation: To find the circumference of this circle, start with the formula for the circumference of a circle which is C = 2πr.
Since the radius is 2 centimeters, we can
plug in 2 centimeters for r in the formula.
So we have (2)(π)(2 cm) which is equal to 4π cm.
So the circumference of this circle is 4π cm.
Remember that π is approximately equal to 22/7 or 3.14 so we can estimate the value of the circumference by plugging in 3.14 for π.
So we have (4)(3.14) which is equal to 12.56.
So the circumference of the circle is
approximately equal to 12.56 cm.
BRAINLIEST!!!!!!! ANSWER QUICKLY!!!!!!!!!!!!!!!!!!!!!!!
Hi, I need help. I have a question about the Big Bang and Evolution. I don't fully understand or believe what happened. Can someone with a great mind try to explain it. Good luck by the way, I will tell you what I think in the comments. I don't believe in the Big Bang, I doubt you can convince me, but if you are willing to try..........please do.
Answer:
The big bang is showing that there is tiny atoms. The atoms grouped up with gravity and more and more grouped making a super dense dot. The dot exploded making gases creating stars. The stars were bigger so they got new atoms to join creating planets. One planet named was suitable for life so tiny germs. The rest nobody knows.
Step-by-step explanation:
Find the volume of the figure
Answer:
You would do length x width x hight so it would be and don’t forget to add the inches
14x17.5x6.4= 1641.5in
70miles in 2 hours unit rate??
Answer:
The answer is 35
Step-by-step explanation:
70 divided by 2 is 35 which would be 35 miles per hour which would be your unit rate.
I have a test to do today and I need help with it, i don't understand any of it. I will copy and paste it here: IQ scores are normally distributed with a mean of 100 and standard deviation of 15. 1) About what percent of people would have IQ between 85 and 115? 2) About what percent of people would have IQ between 70 and 130? 3) About what percent of people would have IQ above 130? 4) If a school had 255 students, about how many would you expect to have an IQ less than 70? 5) If a school had 1531 students, about how many would you expect to have an IQ greater than 145? 6) If a school has 354 students with an IQ between 100 and 130, about how many students does the whole school have?
Answer:
68%
Step-by-step explanation:
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. About 68% of individuals have IQ scores in the interval 100 ± 1 ( 15 ) = [ 85 , 115 ] .
easy geometric shapes question!
Answer:
Cylinder
Step-by-step explanation:
The given geometric shape is of a cylinder.
Answer:
Cylinder
Step-by-step explanation:
The shape will make a cylinder if put together.
You are part of a football team there are three possible outcomes for each match: win, lose or draw. What is the probability of winning the next two matches in a row? □ in □
Answer:
Probabilty of winning the next two matches in a row = 1/9
Step-by-step explanation:
The total number of possible outcome = 3
(Win, lose, draw)
The probability of obtaining a win in a single match = 1/3
The probability of winning in two rows is 1/3² = 1/9
Carlos has 4/5 of a tank of fuel in his car. He uses 1/10 of a tank per day.
How many days will his fuel last.
Answer:
8 days.
Step-by-step explanation:
To solve this, we will need to divide fractions to find the amount of days his fuel will last. Remember that when dividing fractions, you need to multiply by the reciprocal of the fraction.
We can do this by:
[tex]\frac{4}{5} * \frac{10}{1} = \frac{40}{5} = 8[/tex]
Therefore, his gas will last 8 days.
Answer:
8
Step-by-step explanation:
number of days=total fuel÷consumption per day
=(4/5)÷(1/10)
=4/5 ×10/1
=8 days
Someone please help me
Answer:
hi buddy
the answer is a if we divide both with equation 4 then you can get the answer
hope it likes you.....
please mark brainlist
Please find the surface area of the sphere. Round your answer to the nearest hundredth.
Surface area = [tex]\frac{4}{3} \pi r^{3}[/tex] = [tex]\frac{4}{3}[/tex] x 3.14 x 3 x 3 x 3 = 3.14 x 4 x 3 x 3 = 113.04 yd^2 = approx. 113.1 yd^2
what is the solution of this equqtion? -7y -3=11
Answer:
y = -2
Step-by-step explanation:
-7y -3=11
Add 3 to each side
-7y -3+3=11+3
-7y = 14
Divide by -7
-7y/-7 = 14/-7
y = -2
Answer:
Hello,
y = -2
Step-by-step explanation:
-7 y - 3 = 11 ⇔ -7 y - 3 + 3 = 11 + 3 ⇔ -7 y = 14 ⇔ y = 14 / -7 ⇔ y = -2
What is the volume of a cylinder with base radius 2
and height 9?
Answer:
18
Step-by-step explanation:
volume= r × h = 2 × 9= 18
Answer:
The volume is 144[tex]\pi[/tex].
Step-by-step explanation:
In order to calculate the volume of a cylinder, you have to find the area of it's base. Because a cylinder's base is a circle, you use the formula A=[tex]\pi r{2}[/tex]. Substituting in the radius's length would be A=[tex]\pi (4){2}[/tex], which is A=16[tex]\pi[/tex]. Now that we know the base area of the cylinder, we multiply it by the height, which is 9 to calculate the volume. Therefore, the volume of the cylinder would be 9×16[tex]\pi[/tex], which is 144[tex]\pi[/tex].
The areas of the squares adjacent to two sides of a right triangle are 32 units^2 2 squared and 32 units^2 Find the length, xxx, of the third side of the triangle.
Answer:
8 units
Step-by-step explanation:
If the area of the squares are 32 units^2, we have that:
Area = Side * Side
Side^2 = 32
Side = sqrt(32) = 5.657 units
So as the squares are adjacent to two sides of the triangle, we have that the triangle has two sides of 5.657 units
As it is a right triangle, we can use the Pythagoras' theorem:
c^2 = a^2 + b^2
c^2 = 5.657^2 + 5.657^2
c^2 = 64
c = 8 units
Answer:
its 8
Step-by-step explanation:
the front side of a doghouse is shown in this scale drawing The height of the door in the drawing is 2 inches and the width is 3.5 inches. ... Using the scale given, enter the actual height, in feet, of the doghouse door.
Answer:
So, every one inch in the real dog house would be equal to .4 on the scale drawing.
So,
8/.4= 20
10/.4= 25
So, the dog house is 20 by 25 inches.
The question asked for the area.
20*25= 500
The real dog house has an area of 500 in^2.
I hope this helps!
Step-by-step explanation:
y=3x−5 and y=x−1 Is (2,1) a solution of the system?
Answer:
Yes (2,1) is a solution to the equation
Step-by-step explanation:
PLS HELP WITH THIS QUESTION, ASAP!!
BRAINLIEST AND POINTS
It is 3.15 x 10^-7. You find what 1.05 x 10^-10 is in scientific notation (0.00000000105), times that by 3000, and you end up with 0.000000315 (3.15 x 10^-7 is the answer) :)
Andre’s father is 8 years more than twice Andre’s age, a. The sum of their ages is 53, how old Andre?
Answer:
15 years old
Step-by-step explanation:
The equation would be
8x + 2x + x = 53
3x = 45
x = 15
How much tomato juice is needed for a group of 4 people if each person gets ⅓ cup of juice? How much tomato juice is needed if they each get ⅔ cup of juice?
Answer:
1. At 1/3 cup per person, the amount of tomato juice needed is [tex]1\tfrac{1}{3} \ cups[/tex] of tomato juice
2. At 2/3 cup per person, the amount of tomato juice needed is [tex]2\tfrac{2}{3} \ cups[/tex] of tomato juice
Step-by-step explanation:
1. Here we have that each person gets 1/3 cup of juice
Number of people in the group = 4
Amount of tomato juice each person gets = 1/3 cup
Total amount of tomato juice required = 4 × 1/3 = 4/3 cups of tomato juice
In proper fractions, we have;
Total amount of tomato juice required = [tex]1\tfrac{1}{3} \ cups[/tex] of tomato juice.
2. Where we have that;
Amount of tomato juice each person gets = 2/3 cup
Number of people in the group = 4
∴ Total amount of tomato juice required = 4 × 2/3 = 8/3 cups of tomato juice
In proper fractions, we have;
Total amount of tomato juice required = [tex]2\tfrac{2}{3} \ cups[/tex] of tomato juice.
Simply the expression. (7x^2y^3)^4
Answer:
2401x^8y^12
Step-by-step explanation:
You raise 7 to the 4th power which means you multiply 7 four times. Then you multiply the exponents of 2 variables by 4.
A rectangle has a height of t? + 7t +6 and a width of 2t + 1.
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
Answer:
2t^3+15t^2+19t+6
Step-by-step explanation:
(t^2+7t+6)(2t+1)
=t^2*2t+t^2*1+7t*2t+7t*1+6*2t+6*1
=2t^3+15t^2+7t+12t+6
=2t^3+15t^2+19t+6
the lines below are parallel. If the green line has a slope of 5, what is the slope of the red line? Enter your answer as an integer or fraction in lowest terms
Answer: 5
Step-by-step explanation: As a rule, parallel lines will always have the same slope. What that means is that if you're told that 2 lines are parallel, the slopes will be exactly the same for both of them.
So if the green line has a slope of 5, the red
line also has a slope of 5.
Marsha has two cubes with one number on each side,each cube is numbered from 1 to 6 marsha rolls both number cubes at the same time. What is the probability that the total of numbers facing up will equal 12
Answer:
1/36
Step-by-step explanation:
If the cubes are numbered from 1 to 6 there is just one way that the sum of both of them equals 12 and this is when Marsha gets 6 in the first cube and 6 in the other.
Thus, to know what the probability that the total of numbers facing up will equal 12 we would have to calculate the probability that the first cube is 6 AND the second one is also 6.
The probability that the first cube has the number 6 is: 1/6
The probability that the second cube has the number 6 is: 1/6
We need to multiply this numbers because they both have to be 6 (rule of multiplication),
so: [tex]\frac{1}{6}(\frac{1}{6} )= \frac{1}{36}[/tex]
Thus, the probability that the sum of them equals 12 is 1/36
Find the percent of all values in a normal distribution for which z ≤ 1.00, to the nearest tenth of percent.
Answer:
84.1% of all values in a normal distribution have z ≤ 1.00.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question:
The percent of all values in a normal distribution for which z ≤ 1.00.
This is the pvalue of Z = 1.
Z = 1 has a pvalue of 0.8413.
Converting to percentage, to the nearest tenth.
84.1% of all values in a normal distribution have z ≤ 1.00.
what’s the sum of 0.25 and 0.6
the answer is 0.85
because 25 plus 60
is 85
Work out the area of this circle take (pi) to be 3.142 and give your answers to 2 decimal places
Answer:
A = 63.63 m^2
Step-by-step explanation:
The area of a circle is given by
A = pi r^2 where r is the radius
r = d/2 = 9/2 = 4.5
A = 3.142 * (4.5)^2
A =63.6255 m^2
Rounding to 2 decimal places
A = 63.63 m^2
What is 4 1/5 multiplied by 3/10
Answer:
1 13/50
Step-by-step explanation:
4 1/5 * 3/10
Change the mixed number to an improper fraction
4 1/5 = (5*4+1)/5 = 21/5
21/5 *3/10
63/50
Changing back to a mixed number
1 13/50
Answer:
1 13/50
Step-by-step explanation:
4⅕ × 3/10
21/5 × 3/10
63/50
1 13/50
Multiple choice please please answer
Answer:
[tex] \purple { \boxed{x = 25 \times \sin \: 39 \degree}}[/tex]
Step-by-step explanation:
[tex] \sin \: 39 \degree = \frac{x}{25} \\ 25 \times \sin \: 39 \degree = x \\ \huge \red{ \boxed{x = 25 \times \sin \: 39 \degree}}[/tex]
A candle maker adds lemon oil to wax to make the lemon-scented candle shown. How many ounces of oil will he need for the candle to have 0.0025 ounces of oil per cubic centimeter of wax.
Answer:
The ounces of oil needed is 5 ounces of oil
Step-by-step explanation:
The first thing to do here is to calculate the volume of the lemon-scented candle given.
Looking at shape the volume can be calculated using the formula L * B * H
where L(length) = 10cm , B(breadth) = 8cm and Height(h) = 25cm
The volume V is thus = 10 * 8 * 25 = 2,000 cm^3
The ounces of oil needed for the candle to have 0.0025 ounces of oil per cm^3 of wax will be = The volume of the lemon-scented candle * 0.0025 ounces of oil per cm^3 of wax
That will be = 0.0025 * 2,000 = 5 ounces
Answer:
5 ounces
Step-by-step explanation:
Michael and Levin ran laps after school to train for the football team. The ratio of the number of laps Michael ran to the number of laps Levin ran was three to four. If Michael ran 12 laps, how many laps did Levin run?
Answer:
Levin ran 16 laps
Step-by-step explanation:
3 to 40
12 to 16
Answer:hi
Step-by-step explanation:
Did Julio verify the solution?
O No. He substituted 4 and -2 for the wrong
variables.
O No. He did not check the point in the second
equation
O No. He simplified the equation incorrectly.
Yes. He verified that (4, -2) is a solution to the
system of equations.
ASAP
Answer:
No. He did not check the point in the second equation.
Step-by-step explanation:
Took the assignment
Answer:
no he did not check his second equation
Step-by-step explanation:
Just took it hope this helps.
Find the number, if...
3/8 of it is 24.
