Answer:
Your answer is 21
Hope that this is helpful. Vote and like it
1)
Given that r = 2 in and x = 3 in, determine the surface area of the cylinder. Round to the nearest tenth of an inch.
A)
25.1 in 2
B)
62.8 in2
C)
75.4 in2
D)
113.1 in 2
Answer:
B) 62.8 in^2
Step-by-step explanation:
Thanks alot, and Is that right?
what percentage of this 100 square grid is shaded?
Answer:
80 percent
20 for the first shaded multiply with 4 and its 80
There are 35 students in a classroom. The ratio of girls to boys is 2 to 3. How many boys and how many girls are there in the classroom?
Answer:
15 girls and 10 boys
Step-by-step explanation:
Answer:
students=35
ratio of girls to boys=2:3
2+3=5
girls.
⇒[tex]\frac{2}{5}[/tex]×35
⇒2×7
⇒14
boys
⇒[tex]\frac{3}{5}[/tex] × 35
⇒3×7
⇒21
Step-by-step explanation:
Which ordered pair is a solution of the system 3x+y=-3 and y=x+5?
a: (3,-2)
b: (-4/3, 1)
c: (-2, 3)
d: (-8/3, -3)
Answer:
The correct answer is C. (-2,3)
Step-by-step explanation:
Hope this helps :)
Help pleaseee.........
Answer:
you got me fu(c)ked up i dont even know how to do addititoe
Step-by-step explanation:
Identify the transformation that was applied to this letter
A. Rotation about the origin
B. Reflection over the x-axis
C. Translation
D. Reflection over the y-axis
PLEASE HELP IM BEGGING YOU I WILL GIVE BIRRELANSTAST
Answer:
A.)555 in.^2
Step-by-step explanation:
When solving these types of things, I usually like to cut it up into smaller, easier to manage shapes.
You can cut that trapezoid into two triangles and one rectangle.
Since both triangles are the same size, you don't need to divide the base and height by two, so you'll get the area of both triangles combined (which saves some work).
We know the length of the rectangle and bases of the triangle combined is 44 inches, and that the length of just the rectangle is 30 inches, so we can just subtract 30 from 44 and divide it by two for the base of a triangle.
44 - 30 = 14
14/2 = 7
Now that we filled in the information not listed, we can finally solve:
The base of one triangle is 7 inches, and the height is 15 inches.
Now, we just multiple and divide it by 2 for one triangle (it would be 52.5 inches).
But, we don't need to divide it by two because both triangles are the same size, so we can just get the sum of the area of both triangles combined by skipping that step (because triangles are half a square and two of those triangles make a full square).
7 x 15 = 105
The area of both triangles combined: 105 in.^2
Next, we need to solve the area of the rectangle. This is easy considering all you have to do is multiply 15 by 30 (length times width).
15 x 30 = 450
The area of the rectangle: 450 in.^2
Now, the final step. Addition. All you need to do is add up all the sums, and you're done.
450 + 105 = 555
The area of entire figure: 555 in.^2
NOTE: the symbol '^' represents exponents, so when you see 555 in.^2, it means inches squared (or to the power of 2)
In a lab, 700 cells are present at the beginning of an experiment. During the first 7 hours,
the number of cells increased by 12% each hour.
Estimate the time when the number of cells is 1735.
Round answer to nearest whole hour.
Answer:
2 hours
Step-by-step explanation:
1=700
x=1735
1735=700x
1735/700
x=2.47
Answer:
Step-by-step explanation:
This is an exponential equation of the form, A=ar^t, where a is the initial amount and r is the common ratio or rate of growth and t is time. In this case.
A=700(1.12)^t and we want to find when A=1735
1735=700(1.12)^t
1735/700=1.12^t
ln(1735/700)=t(ln(1.12))
t=(ln(1735/700))/(ln(1.12))
t=8 hours
It costs $16 for 8 specialty chocolates for Valentines Day. Find the unit rate 5 per item (how much for 1 chocolate).
Answer:
Unit Rate: 2$ per chocolate
If you're buying 5, it will cost $10
Step-by-step explanation:
Finding the unit rate:
16 ÷ 8 = 2
2 x 5 = $10
If you're talking about what happens if each chocolate cost $5 per item it would be
$5 x 8 chocolates = $40
I hope this helped! :)
Anybody good in geometry and know how to do this? Free Brainliest and points!
Answer:
Step-by-step explanation:
That is a horizontal reflection about the vertical line x=2.
Answer:
the answer is B. reflection over y = 4
Step-by-step explanation:
The length of a ribbon is 5 6 meter. Sun Yi needs pieces measuring 1 5 meter for an art project. What is the greatest number of pieces measuring 1 5 meter that can be cut from the ribbon? How much ribbon will be left after Sun Yi cuts the ribbon?
Answer:
5
Step-by-step explanation:
Hope this helps
How many days is in:
3 weeks
5 weeks
7 weeks
9 weeks
Answer:
3 weeks 21 days, 5 weeks 35, 7 weeks 49, 9 weeks 63 days
Step-by-step explanation:
Each week is 7 days
Earth makes a full rotation every
24 hours, Noptune makes a full rotation
every 16 hours. What is the ratio of
Earth rotations to Neptune Rotations?
(in simplest terms)
Answer:
I think the ratio is 3:2 :)
What is the new location of the point (7,-8)
when it has been rotated 90 degrees?
Answer: The answer is A
Step-by-step explanation:
Please answer it is urgent.
Answer:
2/3
Step-by-step explanation:
The slope is a 2/3 gradient :>>
Answer:
I believe that the answer is 2/3.. but I may be wrong...
Step-by-step explanation:
help 8+x2=−12..im confused
Answer:
Step-by-step explanation:
No real solutions exist. Subtract 8 on both sides to get:
[tex]x^2=-20[/tex]
You cannot take the square root of a negative number without involving imaginary numbers.
Answer and Explanation
__________________________________________________________
-10__________________________________________________________
The answer is -10 because...
You need to multiply 2 by "x," and to find out what "x" is, we need to add...
[tex]2+-12[/tex]
__________________________________________________________
And if we add [tex]2[/tex] by [tex]-12[/tex], we get [tex]-10[/tex], which is our answer.
__________________________________________________________
and now, if we add [tex]-20[/tex] by [tex]8[/tex], we get [tex]-12[/tex], which is what the equation equals, and this is how we know it is correct.
__________________________________________________________
Hope this helps! :)
I need help with these questions. Please show workings.
Answer:
see explanation
Step-by-step explanation:
∠ AOB = 360° - 264° = 96°
The altitude OM bisects ∠ AOB and the base AB
(a)
∠ MOB = 0.5 × 96° = 48°
Using the cosine ratio in right triangle MOB
cos48° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{OM}{OB}[/tex] = [tex]\frac{18}{r}[/tex] ( OB is the radius r of the circle )
Multiply both sides by r
r × cos48° = 18 ( divide both sides by cos48° )
r = [tex]\frac{18}{cos48}[/tex] ≈ 27 cm ( to the nearest cm )
(b)
Using the tangent ratio in the right triangle MOB
tan48° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{MB}{OM}[/tex] = [tex]\frac{MB}{18}[/tex] ( multiply both sides by 18 )
18 × tan48° = MB then
AB = 2 × MB = 2 × 18 × tan48° = 36 × tan48° ≈ 40 cm ( to nearest cm )
In Triangle FGH, f = 65 inches, g = 48 inches and h=70 inches. Find the measure of Angle G to
the nearest degree.
Submit Answer
Answer:
Answer:41
Step-by-step explanation:
Solve the equations -5(x + 3) = 25. Write the problem on the sketch pad then solve the problem algebraically. I need the answer and how you work it out :)
Answer:
-8
Step-by-step explanation:
-5x-15=25
-5x=40
x= -8
Describe the line below using slope and intercept.
y = 3/2x - 4
In 2011, 39 people died by being struck by lighting, and 24 people were injured. There were l 310,000,000 people in the United States. What is the probability of being one of the people struck by lighting
Answer: 0.0000203%
Step-by-step explanation:
The total number of people struck by lightning includes both those who died and those who were injured:
= 39 + 24
= 63 people
Probability of being struck is:
= People struck / U.S. Population
= 63 / 310,000,000
= 0.0000203%
if 4 books cost $52, how much will 2 books cost?
Answer: 2 books would cost $26.
Step-by-step explanation:
4 books : $52 You need to get down to 2 books. Divide 4 by 2 and .............................................52 by 2.
2 books : $26
How many times larger than 2x10^2 is 2x10^8
1000000 times larger
Step-by-step explanation:
2x10^2 is 200.
2x10^8 is 200000000
2x10^8 is 1000000 times larger that 2x10^2
WILL GIVE BRAINLY
IM SO DUMN khans doesn’t make sense with this question to me cuz I did it already and it was apparently wrong
Answer:
20units
Step-by-step explanation:
I don't understand how to find the volume of these shapes.
Answer:
It tells you in the book all you have to do is plug the numbers in the right spots
These are the volumes that it gives you. All you have to do is plug in the numbers
v= 1/2bh
v= bh
v = Bh
Step-by-step explanation:
A group of students go to the store to buy school supplies. If they buy three
binders and four notebooks, the bill will be $4.85. If they buy three binders and
ten notebooks, the bill will be $8.75. What is the cost of each binder and
notebook?
Answer: Binder = 75c notebook = 65c
Step-by-step explanation:
3b + 10n = 875
3b + 4n = 485
Subtracting gives:
6n = 390
390/6 = 65
n = 65
Substitute 65 into 3b + 4n = 485
3b + 260 = 485
3b = 485 - 260
3b = 260
b = 75
The measures of the two acute angles of a right triangle are in the ratio 2:7. What are the measures of the two angles?
Answer:
20, 70
Step-by-step explanation:
9x=90
x=10
angles are 20 and 70
please mark as brainliest
Devin has a new job as an apple employee he is paid $16 per hour a one time bonus of $4,325. If he earns $4,997 on his paycheck, how many hours did he work
2/5 (s + 20) pls help
Answer:
2s/5 + 8
Step-by-step explanation:
if you wanted it simplified..
A triangle is dilated with the resulting image appearing half as large as the original. Which rule best represents this dilation?
A. (x, y) (2x, 2y)
B. (x, y) (.5x, 2y)
C.(x, y) (x-.5, y-.5)
D. (x, y) (.5x, .5y)