Answer:
2.8km
Step-by-step explanation:
7cm=1
?=40 000
7cm×40 000=280 000cm
=2800m
=2.8km
For 4 weeks Paula and her sister looked for seashells on the beach. In the first week Paula collected 50 seashells and her sister found 60. After that, they each found 10 more than the previous week. How many seashells they found altogether?
Answer:
560
Step-by-step explanation:
Answer: All together with the previous weeks they both got 560
Step-by-step explanation:
Simplify by rationalizing the denominator.
15√2 / √270
[tex] \frac{ \sqrt{15} }{3} [/tex] ✅
Step-by-step explanation:
[tex] \frac{15 \sqrt{2} }{ \sqrt{270} } \\ \\ = \frac{15 \sqrt{2} }{ \sqrt{270} } \times \frac{ \sqrt{270} }{ \sqrt{270} } \\ \\= \frac{15 \sqrt{2} \times \sqrt{270} }{270} \\\\ (∵ \sqrt{a} \times \sqrt{a} = a) \\\\ = \frac{15 \sqrt{540} }{270} \\ \\= \frac{ \sqrt{2 \times 2 \times 3 \times 3 \times 3 \times 5} }{18} \\ \\ = \frac{ \sqrt{ {2}^{2} \times {3}^{2} \times 15 } }{18} \\ = \frac{2 \times 3 \sqrt{15} }{18} \\ \\ = \frac{6 \sqrt{15} }{18} \\ \\ = \frac{ \sqrt{15} }{3} [/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}[/tex]
Kirin is designing a doghouse. The base of the doghouse will be made of wood and shaped like a rectangle with a half-circle on each side as shown below. How much wood will Kirin need to build the base of the doghouse? Use 3.14 for π and round your answer to the nearest foot. Show all work.
Answer:
EASY WAY
Step-by-step explanation:
Length of rectangle= 13 feet
base of semi circle/ rectangle breadth = 1.6 feet
area =
13 into 1.6
=20.8f
semi circle= 1/2 pie r 2
1/2 x 3.14 x 0.8 x square
=1.577536 f
1.577-20.8=the wood =19.22 feet 2
Final grade assignment due at 12:00 am
Answer:
Bix A
Step-by-step explanation:
because width x height x length = volume. so a has greater volume
simplify (2 x 3^-2)^3(5 x 3^2)^2/(3^-2)(5 x 2)^3
Answer:
[tex]\frac{12x^2}{5}[/tex]
Lauren has a points card for a movie theater.
She receives 60 rewards points just for signing up.
She earns 5.5 points for each visit to the movie theater.
She needs 104 points for a free movie ticket.
Write and solve an equation which can be used to determine xx, the number of visits Lauren must make to earn a free movie ticket.
Multiply points per visit x number of visits, using x for the number of visits:
5.5x
Add that to the points she already has:
5.5x + 60
This needs to equal a total of 104 points:
5.5x + 60 = 104
Now solve for x
5.5x + 60 = 104
Subtract 60 from both sides
5.5x = 44
Divide both sides by 5.5
X = 8
She needs 8 more visits
The quadratic function h(t) = −4.9t^2 + 50t + 2 represents the height, in meters, of a toy rocket t seconds after launch. How many seconds will it take the toy to reach the ground? State your answer to the nearest whole second.
Answer:
The toy reaches the ground in 10 sec
Step-by-step explanation:
When the rocket hits the ground, h becomes zero (0). Thus, our problem here is to solve the equation h(t) = −4.9t^2 + 50t + 2 = 0,
Because of the fractional coefficient -4.9, it's best to use the quadratic equation here. The coefficients of the t terms are {-4.9, 50, 2}. Thus,
the discriminant is b^2 - 4ac = 50² - 4(-4.9)(2) = 2539.2, and the square root of this is 50.39.
The quadratic formula is as follows:
-b ± √discriminant
t = -------------------------------
2a
which here is:
-50 ± 50.39
t = ------------------------ Since t represents time, only the positive result
-9.8 is relevant here; it is 10.24 sec,
which rounds off to 10 sec
The toy reaches the ground in 10 sec
Help with math earn 10 points
Answer:
B
Step-by-step explanation:
Answer: B
Step-by-step explanation:
The reason is because that when the line passes, there are *almost* equal dots on either side. It also passes through some dots. The other answers have most on the bottom, top or in some cases, the line doesn't have a gps.
Hope this helps :)
-jp524
If anyone could help me with this worksheet that would be great
I'll mark brainliest
Answer:
Q1: 45 degrees
Q2: vertically opposite angles
Q3: Complementary angles
Please mark brainliest
SOMEONE HELP THIS IS ON MY FINAL EXAM. “Estimate the product by rounding to the nearest thousand 7 x 2,31
Solution:-
given,
35863 - 27677 = 8,186
= nearest thousand = 8
How many rotations does each wheel make while Shawn is coasting down the ramp?
Use 4's and any of the operations: +, -, × and ÷ to write number sentences.
Example: (4+4)÷(4+4)= 1
What equals 2?
What equals 3?
What equals 4?
What equals 5?
Answer:
Step-by-step explanation:
(4x4)÷(4+4) = 2
(4x4)÷ (4 +4) - 4= 4
(4+4)+(4÷ 4)- 4= 5
(4+4)- (4÷4) - 4= 3
Plz help, don't put link, and don't answer if you DON'T know
[tex]\pi \\[/tex] as 3
The volume would be...
The surface area would be....
Hi, sorry for a late response, but here are the answers if they are still helpful?
The volume would be about 4,188.79
(if rounded and if not the answer is below and so is the work.)
Volume = 4
—— πr3
3
= 4
—— ✖️ π ✖️ 103
3
= 4188.7902047864 centimeters^3
The surface area would be about 1,256.64
(if rounded and if not the answer is below and so is the work.)
Surface Area = 4πr2
= 4 × π × 102
= 400π
= 1256.6370614359 centimeters^2
Help with both answers thanks.
And no links pls
Prove why this makes sense.
Answer:
it doesn't
Step-by-step explanation:
hehe, try again
Answer:
You cross add
Step-by-step explanation:
so like you would do cosθ + cosθ = cosθ. 1 + sinθ + 1 + sinθ = 2 = 2/cosθ
Have a good day/night!!!!!!!!!!!
Sorry if I am wrong! :) :) :)
Royce is folding a piece of paper to make an origami figure. Each time he folds the paper, the thickness of the paper is doubled. The paper starts out flat, with a thickness of 2 millimeters.
A. Write a list of six ordered pairs showing the output as the thickness of the paper when the input is the number of times it is folded. Explain how you came up with your ordered pairs.
B. Is this relation a function? Explain why or why not using the ordered pairs you came up with in Part A.
(Answer to get 50 pts and brainly)
Answer:
A.
(0, 2) (1,4) (2,8) (3,16) (4,32) (5,64)We start with (0,2) because before it's folded it has a thickness of 2mm. each consecutive fold doubles the y value.
B.
Yes it is a function because no x value is repeated
The list of six ordered pairs are {(0, 2), (1,4), (2,8), (3,16), (4,32), (5,64)}, and it is a function.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have:
Royce is folding a piece of paper to make an origami figure. Each time he folds the paper, the thickness of the paper is doubled.
Let y be the total thickness and x be the number of folds:
[tex]\rm y = 2^{x+1}[/tex]
Plug x = 0, 1, 2, 3, 4, 5,
Wea get list of six ordered pairs:
= {(0, 2), (1,4), (2,8), (3,16), (4,32), (5,64)}
This is an exponential function that passed the vertical test, it is a function.
Thus, the list of six ordered pairs are {(0, 2), (1,4), (2,8), (3,16), (4,32), (5,64)}, and it is a function.
Learn more about the function here:
brainly.com/question/5245372
#SPJ5
(30 points worth, pls help)
Use the function f(x) to answer the questions. f(x) = −16x2 + 60x + 16 Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)
Step-by-step explanation:
x intercept y=0
0 = 16x^2 - 60x -16
0 = 16x^2 + 4x - 64x - 16
0 = 4x (4x + 1) - 16 (4x + 1)
0 = (4x - 16) (4x + 1)
4x - 16 = 0 or 4x +1 = 0
4x = 16 or 4x = -1
x = 4 or x = -1/4
(4,0) and ( -1/4,0)
Answer:
x intercept y=0
0
= 16x^2 - 60x -16
0 = 16x^2 + 4x - 64x - 16
0 = 4x (4x + 1) - 16 (4x + 1)
0 = (4x - 16) (4x + 1)
4x - 16 = 0 or 4x +1 = 0
4x = 16 or 4x = -1
x = 4 or x = -1/4
(4,0) and ( -1/4,0)
Step-by-step explanation:
0 = 16x^2 - 60x -16
0 = 16x^2 + 4x - 64x - 16
0 = 4x (4x + 1) - 16 (4x + 1)
0 = (4x - 16) (4x + 1)
4x - 16 = 0 or 4x +1 = 0
4x = 16 or 4x = -1
x = 4 or x = -1/4
(4,0) and ( -1/4,0)
When a spaceship full of scientists landed on Planet Q, they found that 3/8 of the 160 aliens had 3 eyes. The rest of the aliens had 5 eyes. How many eyes total do the 160 aliens have?
Answer:
680 eyes.
Step-by-step explanation:
160 · 3/8 = 60
60 aliens have 3 eyes. That means the other 100 aliens have 5 eyes.
60 · 3 = 180
100 · 5 = 500
500 + 180 = 680
Therefore, the 160 aliens have a total of 680 eyes.
Arianna earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. How much would she make in a workweek if she sold $4800 worth of merchandise?\
Solve with steps. First, then, next, after
Answer: Take the answer from somebody
Step-by-step explanation:
PRE-ALGEBRA !! PLEASE HELP !!
its b
Step-by-step explanation:
Answer:
I think the answer is B
hope this helps
have a good day :)
Step-by-step explanation:
The theoretical probability of selecting a consonant at random from a list of letters in the alphabet is 21/26. Wayne opens a book, randomly selects a letter on the page and records the letter. He repeats the experiment 200 times. He finds p(consonant) = 60%. How does the theoretical probability differ from the experimental probability? What are some possible sources for this discrepancy. I will mark brainlest
Answer:
The theoretical probability in this case is calculated by taking the number of consonants in the alphabet and dividing it by total number of letters in the alphabet and the distribution of letters in the written language is different than the distribution of letters in the alphabet.
Gavin needs 7/8 gallons of paint to finish painting his deck. He has 0.06 gallon of paint. Does he have enough. Why or why not?
PLS HELP MY GRADES CLOSE TOMMORW Which side lengths form a right triangle?
Answer: B
Step-by-step explanation:
help 15 points (i have to write 20 characters so don't mind this )
Answer:
C
Step-by-step explanation:
First find the area of the entire figure.
L= 36
W = 20
Area = 36 * 20 = 720
Find the area of the left right triangle.
Height = 20
Base = 1/2 * 36 = 18
Just as an aside, let me be a little grumpy for a moment. You should never have to guess what a dimension is on a diagram. It's sloppy. However for this problem you have no choice. But you could think to complain to your teacher.
Area = 1/2 * base * height
Area = 1/2 * 18 * 20 = 180
Find the area of the bottom right triangle.
The height is 1/2 20 = 10
The base is 36
Area of the lower triangle = 1/2 * 36 * 10 = 180
Area of the shaded figure = 720 - 180 - 180 = 360
someone pls help, i need the answer asap <3
Answer:
I am unsure as it is not labeled (The number lines) , but I think it is 8, - 8. Or -8, 8. My first guess is first one though.
Step-by-step explanation:
If this is correct may I please get brainliest?
Diego has 75% of $10. Noah has 25% of $30. Diego thinks he has more money than Noah, but Noah thinks they have an equal amount of money. Who is right? Explain your reasoning.
Answer:
.75 x 10 = $7.5
.25 x 30 = $7.5
They have the same amount so Noah is right
Step-by-step explanation:
Answer:
They have the same amount so Noah is right
Step-by-step explanation:
0.75 x 10 = $7.5
Next you would do
0.25 x 30 = $7.5
PLEASE HELP, I WILL GIVE YOU BRAINLIEST.
The Answers are:
1.) 30, 10
2.) D
Find x please I will give brainlest.
Answer:
x=28
Step-by-step explanation:
6(x+2)=180 Step 1: Write equation
6x+12=180 step 2: Expand the equation
6x=168 Step 3: Do 180-12 first
x=28 Step 4: Divide by 6 answer you got in Step 3
Step 5: replace 28 with x to see if it's correct 6(28+2)= 180
Put comment if answer is wrong and i will change my answer soon as possible
I hope this helps
Find x please
if you can do all the questions i will give brainleist
Answer:
2-16
3-41
4-6.5
5-18
6-9.5
7-62
8-50
9-5
10-7
11-24
12-30
I worked them all out pls trust me.
pls help im failing lol Which side lengths form a right triangle?
Answer:
4 4 8
Step-by-step explanation:
b
Answer:
A
Step-by-step explanation:
i did the math and it took forever please mark brainliest :)