a model train has a scale of 1 in: 7 ft. If the real train is 14 ft. tall, how tall is the model train?
Answer:
2 in.
Step-by-step explanation:
14/7=2
find the length of ab round to the nearest hundredth with 8 meters and 140 degrees white circle NO ARC LENGTH
Answer:What is the Radius? Diameter?
Step-by-step explanation:
Answer:
19.5 is the correct answer.
Step-by-step explanation:
70% of 90 please give right answerrr
Answer: 63
Step-by-step explanation: To find 70% of 90, first write 70% as a decimal by moving the decimal point two places to the right to get .70.
Next, the word "of" means multiply, so we have (.70)(90) which is 63.
So 70% of 90 is 63.
A rectangular cabinet is 5 feet long, 2 feet wide, and 3 feet tall. What is the surface area of the cabinet? Please help
Answer:
62 ft.
Step-by-step explanation:
Multiply 2(width)(length)+ 2(length)(height)+ 2(height)(width)
write the following expression in the form of 4^n
4^4 times 4^3 is equal to?
this is exponets.
Answer:
4^7
Step-by-step explanation:
4 * 4 * 4 * 4 = 256
4 * 4 * 4 = 64
Since the number is the same, another way to write the expression is 4^7.
256 * 64 = 16,384
Hope I helped! Please give me brainliest!
create a story problem for 1/2 × 6
Answer: Mary had six pieces of candy but her mother didn’t want her having too much sugar. She took away half of her candy. How many pieces does she have now?
Step-by-step explanation:
Answer:
I had 6 dollars. you stole half. How much do I have left
Step-by-step explanation:
6 x 1/2 = 3
I want brainliest :)
-8x - 1= -25 Thanks for the help guys!
Answer:
x=3
Step-by-step explanation:
-8x - 1= -25
Add 1 to each side
-8x-1+1 = -25+1
-8x = -24
Divide each side by -8
-8x/-8 = -24/-8
x = 3
Answer:
X=3
Step-by-step explanation:
-8x-1=-25
-8x =-24
-24/-8=3
The radius of a circle is 15 inches.
What is the area of the circle, in square inches? Round your answer to the nearest tenth and use 3.14 for pi.
Answer:
706.86 in^2
Explanation:
formula for a circle: [tex]\pi r^{2}[/tex]
Answer:
706.9in²
Step-by-step explanation:
A= πr^2
Colin & Brian share a lottery win of £2100 in the ratio 4 : 1. Colin then shares his part between himself, his wife & their son in the ratio 2 : 5 : 3. How much more does his wife get over their son?
Answer:
His wife gets $336 more than his son.
Step-by-step explanation:
Colin and Brian:
Ratio of 4:1.
So Colin gets [tex]\frac{4}{4+1} = \frac{4}{5}[/tex] of the prize.
[tex]\frac{4*2100}{5} = 1680[/tex]
Colin got $1680. Dividing between himself, his wife and their son:
Ratio of 2:5:3.
So Colin gets [tex]\frac{2}{2+3+5} = \frac{2}{10}[/tex], his wife gets [tex]\frac{5}{2+3+5} = \frac{5}{10}[/tex] and his son gets [tex]\frac{3}{2+3+5} = \frac{3}{10}[/tex]
Wife:
[tex]\frac{5*1680}{10} = 840[/tex]
His wife got $840.
Son:
[tex]\frac{3*1680}{10} = 504[/tex]
His son got $504.
How much more does his wife get over their son?
840 - 504 = 336
His wife gets $336 more than his son.
What is the value of k for the inverse variation
function?
k=
DONE
Answer:
19,800
Step-by-step explanation:
Answer:
k=19800
k represents the number of gallons of water needed to fill the pool
third is y=19800/x
Step-by-step explanation:
In a herd of cattle, the ratio of the number
of bulls to cows is 1:6.
Find the number of bulls in terms of x.
Final answer:
The number of bulls in a herd with a bull-to-cow ratio of 1:6 is one-seventh of the total number of animals in the herd, represented as x/7.
Explanation:
In the scenario where the ratio of the number of bulls to cows is 1:6, we can express the number of bulls in terms of x, where x represents the total number of animals in the herd.
Let's define the number of bulls as B and the number of cows as C. Given the ratio B:C = 1:6, for every 7 animals in the herd (1 bull + 6 cows), there is 1 bull.
To find the number of bulls in terms of x, we divide the total number of animals by the sum of the parts of the ratio (1+6=7). So, the formula to find the number of bulls (B) is:
B = x / 7
Therefore, if x is the total number of animals in the herd, the number of bulls is one-seventh of x.
how to find volume of the cylinder
Answer:
cbjkjcghuugchbcguygcbvyc
What is the surface area of a sphere with a diameter of 4?*
O
57.63 u2
87.6 u2
50.2 u2
63.9 u2
Answer:
50.2 u²
Step-by-step explanation:
SA = 4 pi r²
SA = 4 × 22/7 × 2 × 2
SA = 50.2 u²
A monster pupcake is supposed to bake for 35 minutes.If luna said to take it out of the oven at 3:20 when did she put them in?
Answer:
she put them in at 2:45
Step-by-step explanation:
because 35 minutes before 3:20 is 2:45
Answer:
3:00
Step-by-step explanation:
Trevor spent $27 and now has no money left. He had ____ before his purchase
Answer:
%27
Step-by-step explanation:
Answer:
27%
Step-by-step explanation:
pls pls pls help me i would appreciate if u do pls
A bag contains 4 red marbles, 3 blue marbles and 2 green marbles. If two marbles are drawn out of the bag, what is the probability, to the nearest 10th of a percent, that both marbles drawn will be red?
The probability of drawing two red marbles is approximately 16.7%.
Explanation:To find the probability of drawing two red marbles from the bag, we need to find the probability of drawing one red marble and then, given that the first marble was red, drawing another red marble. The probability of drawing a red marble on the first draw is 4/9 (since there are 4 red marbles out of a total of 9 marbles). After the first marble is drawn, there are now 8 marbles left in the bag, including 3 red marbles.
Therefore, the probability of drawing a red marble on the second draw, given that the first marble was red, is 3/8. To find the probability of both events occurring, we multiply the probabilities: (4/9) × (3/8) = 1/6, or approximately 16.7%.
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The probability of drawing 2 red marbles without replacement from a bag containing 4 red, 3 blue, and 2 green marbles is 16.7%.
Explanation:The question is asking for the probability of drawing two red marbles from a bag that contains 4 red marbles, 3 blue marbles, and 2 green marbles, without replacing the first one drawn.
Firstly let's figure out the total number of ways to draw 2 marbles from a bag of 9 marbles. Using combination formula, the total number of possible ways is: 9C2 = 36.
Now, how many ways can you draw 2 red marbles from 4? That will be: 4C2 = 6 ways.
So the probability of drawing 2 red multiplies, without replacement, is therefore 6 / 36 = 0.167 or 16.7% when rounded to the nearest tenth of a percent.
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A projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. The path of the projectile is modeled using the equation h(t) = –16t2 + 48t + 190. What is the maximum height of the projectile? 82 feet 190 feet 226 feet 250 feet
Answer:
226 feet
Step-by-step explanation:
The maximum height of the projectile is 226 feet
How to calculate the maximum height of an object?Given the equation of the height modelled as h(t) = –16t^2 + 48t + 190
The ball reaches the maximum height at the point where v = dh/dt = 0
dh/dt = -32t + 48
32t = 48
t = 1.5s
Get the maximum height;
h(1.5) = –16(1.5)^2 + 48(1.5) + 190
h(1.5) = -36 + 72 + 190
h(1.5) = 226 feet
Hence the maximum height of the projectile is 226 feet
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What’s the missing length
Answer:
a=9in
Step-by-step explanation:
Pythagoreans Theorem
a^2+5.6^2=10.6^2
a^2+31.36=112.36
a^2=81
(take square root of both sides)
a=9
what binomial is a factor of x2+6x+5
Answer:
factored is (x+1)(x+5)
Step-by-step explanation:
gradpoint
The binomials (x + 1) and ( x + 5 ) are factors of the quadratic expression of x² + 6x + 5.
What are the factors of the quadratic expression?Given the quadratic expression in the question:
x² + 6x + 5
To find the binomials that are factors of the quadratic expression x² + 6x + 5, we have to factorize the quadratic expression.
The binomials will be in the form of (x + a)(x + b).
x² + 6x + 5
Now, factorizing the expression, consider a pair of integers, "a" and "b," such that their sum is 6 and their product is 5.
The integers that satisfy these conditions are 1 and 5.
Hence, plug them in:
(x + a)(x + b)
( x + 1 )( x + 5 )
Therefore, the factors of the expression are ( x + 1 ) and ( x + 5 ).
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The students in Darnel's grade voted to select a guest speaker. 20 students voted for a famous athlete. If there are 100 students in Darnel's grade, what percentage of the students voted for the athlete?
Answer:
20% of the students voted for the athlete
Step-by-step explanation:
The proportion of students who voted for athlete is the number of students who voted for the athlete divided by the total number of students.
The percentage is the proportion multiplied by 100.
We have that:
20 students voted for the athlete.
Total of 100 students.
20/100 = 0.2
0.2*100 = 20%
20% of the students voted for the athlete
What is the third quartile of this data set?
20, 21, 24, 25, 28, 29, 35, 37, 42, 43, 44
Answer:
You should get 42
Step-by-step explanation:
In the picture I sent you, to find quartile 1 and 3 and the median use the order you have and slash out from the left and the right, if you don't get 2 numbers that you have to add and divide by 2 for the median you have to make lines outside of the middle number and slash on each side to get quartile 1 and quartile 3. Quartile 2 is the median.
The third quartile of the data set is, 42.
What is Ascending order?The numbers arrange in order to least to greatest number is called Ascending order.
Now, For the third quartile of the data set, we first need to find the median, which is the second quartile.
Hence, We can ordering the data set in ascending order:
20, 21, 24, 25, 28, 29, 35, 37, 42, 43, 44
Here, The median is the middle number or the average of the two middle numbers if the data set has an even number of values.
In this case, we have 11 values, so the median is the 6th value, which is 29.
And, we need to find the third quartile, which is the median of the upper half of the data set. The upper half of the data set includes the values:
35, 37, 42, 43, 44
The median of these values is the third quartile.
Hence, take the middle value or the average of the two middle values if there is an even number of values in the upper half.
In this case, there are 5 values in the upper half,
Hence, the median is the 3rd value,
⇒ 42.
Therefore, the third quartile of the data set is, 42.
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Simplify this expression with only positive exponents.
Answer:
[tex]\frac{2x}{y^{-1}}=2xy[/tex]
Step-by-step explanation:
To simplify the expression [tex]\frac{2x}{y^{-1}}[/tex] you must:
[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^{-1}=\frac{1}{a}\\\\y^{-1}=\frac{1}{y}\\\\\frac{2x}{y^{-1}}=\frac{2x}{\frac{1}{y}}[/tex]
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{\frac{b}{c}}=\frac{a\cdot \:c}{b}\\\\\frac{2x}{\frac{1}{y}}=\frac{2xy}{1}[/tex]
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{1}=a\\\\\frac{2xy}{1} = 2xy[/tex]
Therefore,
[tex]\frac{2x}{y^{-1}}=2xy[/tex]
what is two times 57 plus two raised to the power of 63?
Answer:
1.150411783 E130
Step-by-step explanation:
Which equation can be used to find the unknown length, b, in this triangle?
Answer:
use pythagorean theorem
Step-by-step explanation:
a^2+b^2=c^2
Answer:
4²+b² = 5²
Step-by-step explanation:
got it right on edge
Eliana has two different cube-shaped packing boxes. The first box has a surface area of 384 in.2, and the second box has a surface area of 6,144 in.2. How many times greater is the side length of the larger box than that of the smaller box?
The side length of the larger box is 4 times larger than that of the smaller box.
What is a cube?A cube is a three-dimensional representation of a square. it has 6 faces 2 on the bottom and top, 4 on the sides faces.
We are given that Eliana has two different cube-shaped packing boxes.
Since first box has a surface area of 384 in.2, and the second box has a surface area of 6,144 in.2.
Then the surface area of first box = 6( edge)^2
384 = 6 x ( edge)^2
( edge)^2 = 64
( edge) = 8
Similalry;
Then the surface area of second box = 6( edge)^2
6,144 = 6 x ( edge)^2
( edge)^2 = 1024
( edge) = 32
therefore, 32/8 = 4
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The circumference of a great circle of a sphere is 44π. Find the Surface Area of the sphere.
Answer:
1936 π square units
Step-by-step explanation:
Given the information:
The circumference of a great circle of a sphere is 44π.
As we know the formula used to find a circle's circumference is:
C = 2πr , where r is the radius of the circle
In this situation, we know C = 44π
<=> 2πr = 44π
<=> r = 22 units
Hence, the Surface Area of the sphere
S.A = 4π[tex]r^{2}[/tex]
= 4π[tex]22^{2}[/tex]
= 1936 π square units
Kira attempts to write the word divisibility in cursive, but she mistakenly writes one of the letters incorrectly. What is the probability that Kira wrote a letter i incorrectly? Assume each letter of the alphabet is equally difficult to write.
A. 5/12
B. 6/15
C. 1/2
D. 1/6
The probability that Kira wrote a letter i incorrectly in cursive in the word divisibility is 5/12.
What is the probability?Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.
The probability that Kira wrote a letter i incorrectly = number of i / total number of letters
5/12
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PLEASE HELP ME :(
Find the surface area of the cone. *
Answer:
A≈597.62
Step-by-step explanation:
A=π r l + π [tex]r^{2}[/tex]
l=[tex]\sqrt{r^{2} +h^{2} }[/tex]
Which of the following is a geometric sequence?
0, 2, 6, 12, 72,
0 1 2 3 4 5
23'4'5'6
4.9, 14, 19, 24,..
1.3. 9. 27. 81
Answer:
1, 3, 9, 27, 81, ...
Step-by-step explanation:
right on edg