Answer:
254.34
Step-by-step explanation:
Area of a circle = pi*r² So the radius is diameter/2 which is 9, so the area is pi*81 which is 254.34
14. 254.47
EXPLANIACTION
A=(3.14/4) * 18^2
Match the description to the appropriate term.
internal energy
heat
thermal energy
Answer:
I got all right. Thanks.... ❤️
Write an expression, in its simplest form, for the volume of this cuboid
Answer:
[tex]V=10x^2+35x+15[/tex]
Step-by-step explanation:
Given that,
Length = (2x+1)
Width = (x+3)
Height = 5
We need to find an expression for the volume of this cuboid . The formula for the volume of cuboid is given by :
[tex]V=lbh[/tex]
So,
[tex]V=(2x+1)\times (x+3)\times 5\\\\=(2x+1)\times (5x+15)\\\\=10x^2+30x+5x+15\\\\=10x^2+35x+15[/tex]
So, the volume of this cuboid is equal to [tex]10x^2+35x+15[/tex].
can someone please help me :,)
Answer:
The answer is 40
Step-by-step explanation:
8+3+5+4=20
Once you added all the nunbers mutilpy by 2
20x2=40
that's how you get 40 as your answer
hope that helps ❤
Hey guys!
Please help me out with these questions. Tmrw I have an exam... Will mark BRAINILIEST for the answer explaining proper steps. If I sound rude, please forgive me, I'm just stressed out.....
Thanks
Answer:
Step-by-step explanation:
A rectangular tank measures 14 cm by 9 cm by 10 cm. What is the volume of the tank in cubic centimeters?
pls pls pls help me giving brainlist
Answer:
The first one is a similie
second is a metaphor
Step-by-step explanation:
like ice means like a hatred glare
the hug is a a good thing thats
happens on a bad dat
Answer:
simile
the referee was angry
metaphor
they have a lot of love for each other
Step-by-step explanation:
please mark me branliest
Find the area of trapezoids
Answer:
Area is 10.5
Step-by-step explanation:
We can use the trapezoid formula of
[tex]A = \frac{a+b}{2}h[/tex]
A = (2 + 5) / 2 * 3 = 3.5 * 3 = 10.5
or break it into a rectangle and a triangle (natural split by y axis).
A = 2 * 3 + 3 * 3 / 2 = 6 + 9 / 2 = 6 + 4.5 = 10.5
Answer:
10.5 units²
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )
where h is the perpendicular height and b₁, b₂ the parallel bases
Here h = OS = 3 , b₁ = OC = 5 , b₂ = SK = 2 , then
A = [tex]\frac{1}{2}[/tex] × 3 × (5 + 2) = 1.5 × 7 = 10.5 units²
Write an expression showing the sum of a number H and a number W minus 11
Answer:
h+w-11
Step-by-step explanation:
Answer:
H+W-11
Step-by-step explanation:
What is the perimeter of the triangle?
A. 13 centimeters
B. 30 centimeters
C. 52 centimeters
D. 169 centimeters
Answer:
B
Step-by-step explanation:
Answer:
30 is the correct answer
I need help ASAP The number of snacks in 5 packages was 122, 134, 150, 145, and 133. Suppose the mean for 6 packages was 144. How many snacks were in the sixth package?
la suma de los cuadrados de dos numeros
Baxter’s dad fills his sandbox to half its capacity. Which equation can be used to find the volume of the sand in Baxter’s sandbox?
Step-by-step explanation:
You could do Length x Width x Height (of the sandbox) to find the volume of the whole sandbox, and then divide it by 2. That would equal the amount of sand.
A recipe for bread uses 2 cups of liquid and 6 cups of flour for 3 loaves of bread. How many cups of flour are needed for 10 loaves?
Answer:
20
Step-by-step explanation:
3.33*6= 19.98
A piston rises to 5 cm and falls to 3 cm in such a way that it returns to the maximal height three times every two seconds. If we start observing the piston at its maximal height, find an equation modelling the height, h, t seconds from the initial observation.
Answer:
(1 cm)cos3πt
Step-by-step explanation:
Since the piston starts at its maximal height and returns to its maximal height three times evert 2 seconds, it is modelled by a cosine functions, since a cosine function starts at its maximum point. So, its height h = Acos2πft
where A = amplitude of the oscillation and f = frequency of oscillation and t = time of propagation of oscillation.
Now, since the piston rises in such a way that it returns to the maximal height three times every two seconds, its frequency, f = number of oscillations/time taken for oscillation where number of oscillations = 3 and time taken for oscillations = 2 s
So, f = 3/2 s =1.5 /s = 1.5 Hz
Also, since the the piston moves between 3 cm and 5 cm, the distance between its maximum displacement(crest) of 5 cm and minimum displacement(trough) of 3 cm is H = 5 cm - 3 cm = 2 cm. So its amplitude, A = H/2 = 2 cm/2 = 1 cm
h = Acos2πft
= (1 cm)cos2π(1.5Hz)t
= (1 cm)cos3πt
please help no links thank u :)
Answer:
question wdym by links?
Step-by-step explanation:
Martha ordered 3 cheesecakes. She will cut each cake into fourths. How many pieces of cake will she have?
At Mr. Clark's shop, his employees work 20 hours each week and
earn $7 per hour. He uses this expression to find the
total weekly payroll for n employees.
7. (20. n)
Which is an equivalent expression that can be used to find the
total weekly payroll?
B
A 7. (20 − n)
(7 • 20).
с 20 · (n + 7)
D (n + 20) • 7
Answer:
B if there is an N at the end or beginning of it, Not sure if it cut off or not.
Step-by-step explanation:
Well you would need to do 20(7) to get 140, then multiply that to N. I would say B because I'm assuming you're missing out on some part of it, if it is N at the beginning or end then it is B.
Lisa is planning to paint her house over the weekend. She paints 1/3 of a room in an hour. How many rooms will she paint in 6 hours? Solve fraction
Answer:
2
Step-by-step explanation:
Lisa paints 1/3 of the room in an hour
Therefore the number of rooms she will paint in 6 hours can be calculated as follows
1 hour= 1/3
6 hours= x
Cross multiply
x= 1/3 ×6
= 2
Hence 2 rooms can be painted in 6 hours
please help ! I’m so confused
Answer:
2/7 is the scale factor.
Step-by-step explanation:
All you have to do is get two sides that are equal to each other. Let's say Side SR and YX. 3 and 10.5. Do 3/10.5, which is 30/105, which simplified is 6/21, which again simplified is 2/7. So, the scale factor is 2/7.
There are 9 cars in the parking lot. 2 cars are parked on the left and the other cars are
parked on the right. What fraction of the cars are parked on the right?
Solve for x
(3x-15) & (2x+7)
Answer:
for the first one X=-5
for the second one it's a fraction so look at the picture
A survey taken by 1,000 students at a school asked whether they played school sports. The table below
summarizes all 1,000 responses from the students surveyed.
Males
Females
312
220
Play a school sport
Do not play a school sport
?
216
How many of the males surveyed responded that they do not play a school sport?
252
688
109
468
Allie identifies the coordinates of point D as (3, 7). Explain her error and explain how to correctly identify the ordered pair.
Answer:
[tex]D = (7,3)[/tex]
Step-by-step explanation:
Given
[tex]D = (3,7)[/tex]
See attachment for graph
Required
Identify and correct the error
From the attached graph, the coordinate of D is at:
[tex]x = 7[/tex]
[tex]y = 3[/tex]
So:
Allie's mistake is that, she identifies x as y coordinate and y as the x coordinate.
So, the right coordinate is:
[tex]D = (7,3)[/tex]
Multiply. Write your answer as a fraction in simplest form.
−1(45)=
NO LINKS PLEASE !!!!!!!!!!!!!!!!!!
if you do i will report your answer
Answer:
no worries :)
Step-by-step explanation:
Answer:-45
Step-by-step explanation:
Find the value of b. Round your answer to the nearest tenth.
Answer:
[tex]x = 29.65 \\ = > x = 30[/tex]
solve by substitution y=3x+5 and y=x+1
Answer:
x= -2 y= -1
Step-by-step explanation:
To solve by Substitution you would make this equation equal to each other x+1=3x+5 from there you would solve for x subtract x on both sides. and subtracting 5 from both sides 2x= -4 then divide by 2 to get x by itself x=-2 since we now found what the value of x is you can now plug in x into one of the origunal equations and get your answer for y which is y=-1
angle A and angle B are complementary angles. If m angle A = (6x – 8)° and m
angle B = (5x + 21)°, then find the measure of angle B.
Answer: B = 56 degrees
Step-by-step explanation: Complementary angles add up 90 degrees. So we will set both of the equations equal to 90 degrees and then solve from there.
6x+8+5x+21=90
1. Simplify 5x + 6x and 21 - 8
11x+13=90
2. Subtract 13 from both sides.
11x=90-13
3. Simplify 90-13 to 77.
11x=77
4. Divide both sides by 11.
x = 77/11
5. Simplify 77/11 to 7
x=7
Now we have to take the value of x and substitute it back into B = (5x+21)
1. Substitute
B = (5(7)+21)
B = 35 +21
B = 56
HOPE THIS HELPS :)
7. What is the slope of a line that passes through the
origin and (-3,-2)?
Answer:
Step-by-step explanation:
( 0, 0) and (-3 , -2)
Slope = Change in y ÷ change in x
[tex]= \frac{-2-0}{-3-0}\\\\=\frac{-2}{-3}\\\\=\frac{2}{3}[/tex]
Answer this plz I’m stuck on it
Answer:
The value of the car decreased by 16 percent.
Step-by-step explanation:
First I divided 15,540 by 18,500, and I got .84. Then, I subtracted .84 from 1, and got .16. Then I turned .16 into a percent, and got 16%.
There were 680 gallons of water ALREADY in a 1600-gallon pool. Water is being pumped into the pool at the rate of 320 gallons per hour. Let x represents the number of hours. Find how many hours it will take to fill the pool.
Answer:
2 7/8 hours
Step-by-step explanation:
Answer:
2hrs 12 mins
Step-by-step explanation:
5hrs = 5x = 1600 question asks us to find 680
2 1/2x + 680-640 =-x + 2.8hrs
2x + 40 = x + 2.8hrs
2x + 40 = 680
Then use the 2.8 to convert into hrs : minutes ie) 0.8 x 60
0.8 * 60 = 48 minutes
Then go back to x + 2.8hrs = x + 2hrs 48mins
2x + 48 = 60
2x + 48 = 60
2x+ 60 - 48
x = 2:12 hours