Step-by-step explanation:
diameterfor first minute :
Circumference = 25.12
2πr = 25.12
22/7 × r = 25.12/2
r = 12.56 × 7 /22
r = 87.92/22
r = 3.99 mm ( approx. )
diameter = 2r = 2 × 3.99 = 7.98 mm
diameter for second minute =
circumference = 75.63
2πr = 75.63
πr = 75.63/2
r = 37.815 × 7/22
r = 264.705/22
r = 12.032 mm
diameter = 2r = 24.064 mm
COMPARISON : 24.064/7.98
3 times greater ( approximately )
can someone help me plseawe
18 meters by 14 meters
Step-by-step explanation:
18 meters by 14 meters
Area of rectangle is base times height (AKA length times width or however you wish to call the dimensions).
This question is a system of equations question. We can make two equations. We know that every rectangle must have 2 "lengths" and 2 "widths" (4 sides in a rectangle). Since Maria only has 64 meters of fencing, we get the equation:
2L+2W = 64
Now we know the area enclosed must be 252 so we have:
L* W = 252
Rewriting the second equation we get:
Plug this into first equation to get:
(multiply everything by L)
Solving the quadratic tells us L can be 18 or 14. Let's consider if L is 18 first by plugging 18 back into the second equation to get 18 * W = 252 which gives us W = 14. If we do the same for when L = 14, we get that W = 18.
Now you might wonder why we have 2 possible combinations, that's because in reality, it doesn't matter which one we label as length (L) or width (W).
About 14 weeks ago, there were 42 mold spores found in a garden. After a few weeks of observation, it is determined that the number of mold spores in the garden is tripling every 7 weeks.
The number of mold spores, M, at any given time in the garden is equal to the product of the initial amount of spores, I, and 3 to the power of n, where n is the number of times the amount of mold spores has tripled.
How many mold spores are in the garden today?
A. 378
B. 91,854
C. 252
D. 1,134
Answer:
Im guessing 252 is the answer, 42 mold spores were found 14 weeks ago and each 7 weeks it trples right? so two 7 weeks fit in 14 weeks so we would multiply 42 x 2 and which gives us 84 multiply that by 3 since it triples every 7 weeks. And there's your answer, btw don't take this for granted my math is rusty (':
Points R and T are plotted on the coordinate grid
In the right triangle RST, point T is graphed at (2,-3) and point R is graphed at (-1,1)
Which coordinate pair describes the location of point S?
Answer: (1/2, -1)
Step-by-step explanation: The coordinates of point S can be found using the midpoint formula for the hypotenuse RT, since S is the midpoint of RT. The midpoint formula is:
Midpoint of RT = ( (x1 + x2)/2 , (y1 + y2)/2 )
Using the coordinates of R and T, we get:
Midpoint of RT = ( (-1 + 2)/2 , (1 - 3)/2 )
= (1/2, -1)
Therefore, the location of point S is (1/2, -1).
Two-step equations with decimals and fractions
5 stars for correct answers
have a gud day byeeeeeeee
Answer:
e= -1/2
Step-by-step explanation:
(4/3) +5/3 = (-6e - 5/3) +5/3
4/3 +5/3 = -6e
(3)/-6 = (-6e)/-6
e = -1/2
SOMEONE PLS HELP, I WILL CHOOSE BRAINLIEST
Answer:
B.
Step-by-step explanation:
In the triangle the missing angle;
180-80-45= 55°
angle GHJ = 180 -55 = 125°
the equation could be used is B
Hope this helps
Quick Question! Please help!
Simplify using the rules of exponents:
b^4 x (b^2) ^6
A) b^12
B) b^48
C) b^16
D) b^68
Answer:
C
Step-by-step explanation:
Whenever you see a variable with an exponent (in parentheses) with another exponent (outside of the parentheses), you need to multiply them together.
[tex]2 \times 6 = 12[/tex]
Now that we only have b^4 x b^12, you might think we need to multiply the exponents again, but that would be wrong.
The only case where you should be multiplying exponents would be in the case of the first step.
Instead, we need to add them.
[tex] { b}^{4 + 12 = 16} [/tex]
Now we know our answer is C.
Answer all of the questions with number 7 they go together 7-10 please answer the sceen shot please help me
7 is A
8 is B
9 is A
10 is C
brainliest if it is right
Answer:
between 2 minutes and 4 minutes
Step-by-step explanation:
that part of the graph looks flat
Answer:
not positve but pretty sure the answer is she drove at a constant speed between 2 and 4.
Step-by-step explanation:
its the inly straight spot on the graph
I need help with my math homework.
The first one to answer I will mark brainliest. But no spam answering.
Answer:
4.1 is the height of the smallest doll
I'm not sure for the expression sorry.
Step-by-step explanation:
Answer:
4.1 is the height of the small doll i don't know the expression sorry
Step-by-step explanation:
PLS HURRY GIVING BRAINLIEST
(05.02)Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the area of the mainsail in order to buy the correct amount of material. Calculate the area of the parallelogram to determine how much material should be purchased. Be sure to explain how to decompose this shape into rectangles and triangles. Describe their dimensions and show your work. Parallelogram with base of 15 feet, height of 10 feet, and triangular base of 2 feet.
Answer:
150Ft^2
Step-by-step explanation:
The area of a parallelogram is A=BH where B is base length and H is height. I'm not sure why there is information about a triangular base, maybe an illustration would help. But with the information provided, the base times height is equal to 150 Ft^2. Check out the Kahn Academy video for a better explanation
Rule 1: Add 2 starting from 9. Rule 2: Add 3 starting from 5.
What would the coordinate pair be?
Answer:
(11,8)
Step-by-step explanation:
9+2=11
5+3=8
Answer:
(11,8)
9+2=11
5+3=8
HELP I NEED THIS REALLY FAST WILL GIVE BRANILIEST!!!
Answer:
Part 1: 20
Part 2: 75%
Part 3: Skewed to the right
Step-by-step explanation:
Hope this helps. Please give Brainliest.
ANSWER FOR BRAINLIEST
Given a right triangle with a leg of 8 and a hypotenuse of 17, what is the length of the other leg?
Answer:
a
Step-by-step explanation
bc the legs have 2 b shorter than the hypotenuse
Find the greatest common factor 39 of and 44.
Answer:
There are no common factor between the two or its just 1.
Explanation
Factors for 39: 1, 3, 13, and 39.
Factors for 44: 1, 2, 4, 11, 22, and 44.
Answer:As you can see when you list out the factors of each number, 1 is the greatest number that 39 and 44 divides into.
Step-by-step explanation:
Match the point to the correct letter
Answer:
W=(40,-35)
X=(-40,40)
Y=(20,10)
Z=(-15,-20)
Step-by-step explanation:
brainliest if it is right
Answer: 157 cm²
Step-by-step explanation:
A semicircle whose diameter is 20 cm will have an area of 157 cm²
Can yall please help
Answer:
UT
Step-by-step explanation:
A line segment has a two endpoint connect by a line.
UT isn't connected by a line
Answer:
Line segment UT is not shown in the drawing.
WILL CHOOSE BRAINLIEST! The height of a baseball, h (in feet), as a function of time, t (in seconds), is given by the equation h(t)=-16t²+32t+3. find the average velocity (in ft/sec) of the baseball from t=0 to t=1.
Answer:
Given the equation y = -16t^2 + 96t + 3, we know a = -16, b = 96, c = 3.
Let's solve for h in this problem.
h = -b/2a
h = -(96) / 2(-16)
h = -96 / -32
h = 3 seconds
Now let's add t=3 to our equation:
y = -16t^2 + 96t + 3
y = -16*(3)^2 + 96*(3)+ 3
y = -144 + 288 + 3
We now know that the vertex is (3,147), which means that the ball's maximum height is 147 feet.
Answer:
Step-by-step explanation:
Find the height at h(0) and h(1)
h(0) = 3 ft
h(1) = -16 + 32 + 3 = 19 ft
It takes 1 second to go from 3 feet to 19 feet
(19-3) ft / 1 sec = 16 ft/sec
Write a statement that correctly describes the relationship between these two sequences: 2, 4, 6, 8, 10 and 1, 2, 3, 4, 5.
They both are arithmetic sequences.
Step-by-step explanation:
They are arithmetic sequences because they both follow a pattern the first set is going by 2 the second is going by 1. Hope this helps!!!
Part A your were randomly survey 1,000 people at a local grocery store about their of consume use of corrective lenses would this be a valid random sample for your study on use of corrective eyewear in the United States? why or why not?
(explain in your own words)
Answer the following about estimating 509/8.
Answer:
Step-by-step explanation:
509/8 is 63.625
480/8 is 60
560/8 is 70
The closest answer to the real value is 480/8 is 60. This is an underestimate.
Michael decided to take all his leftover change each month and place it into a savings account. This account earns 2% simple interest each year. The only thing Michael is putting in this account is his leftover change, which is a small amount. Should Michael keep his account since he is putting very small amounts in and earns very little interest?
A. Yes, his monthly deposits and interest will accumulate, which means the balance will grow over time.
B. No, the monthly bank fees are taking away all his deposits which leaves the account at zero.
C. Yes, the cost to close the account would cost more than what is in the account since the acc
ount balance really isn't growing.
D. No, he needs to big deposits for his account to actually grow over time.
Answer:
yes, his monthly deposits and interest will accumulate,which means the balance will grow over time.
Find the measurements
Answer:
angle 2=120°
angle 1=60
Step-by-step explanation:
70+50=120
or
180-(70+50)=60
angles on a straight line add up to 180°
180-60=120
Interpreting linear expressions
5 stars if answer is correct
have a splendid day
Answer:
Total number of kilometers in the ride = k
Number of kilometers Garret has already biked = 5
Number of kilometers left in the ride = 5-k
Number of minutes Garret takes per kilometer = 4
Therefore, the image shown is correct.
Whoever gets it right can have brainliest, but answer ASAP!
Answer:
Bidmas.
B =brackets
I= indices
D=division
M=multiplication
A=addition
S=subtraction.
The 19-4 is in brackets so this comes first. The answer is the top one..
Please help, Good 15 pt reward.
Answer:
how is annyone going to know that?
Step-by-step explanation:
Answer:
P ≈ 25 units
Step-by-step explanation:
LM = 12 units ( horizontal line )
use the distance formula to find length of other 2 sides.
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = L (- 3, 2) and (x₂, y₂ ) = M (3, 5 )
LM = [tex]\sqrt{3-(-3))^2+(5-2)^2}[/tex]
= [tex]\sqrt{(3+3)^2+3^2}[/tex]
= [tex]\sqrt{6^2+9}[/tex]
= [tex]\sqrt{36+9}[/tex]
= [tex]\sqrt{45}[/tex]
Repeat with (x₁, y₁ ) = M (3, 5) and (x₂, y₂ ) = N (9, 2)
MN = [tex]\sqrt{(9-3)^2+(2-5)^2}[/tex]
= [tex]\sqrt{6^2+(-3)^2}[/tex]
= [tex]\sqrt{36+9}[/tex]
= [tex]\sqrt{45}[/tex]
Then perimeter P is the sum of the 3 sides
P = 12 + [tex]\sqrt{45}[/tex] + [tex]\sqrt{45}[/tex] = 12 + 2[tex]\sqrt{45}[/tex] ≈ 25 units ( to the nearest unit )
900
Refer to the figure at the right. Line a is $10
2
parallel to line b and m2 is 135º. Find 35
each given angle measure. Justify your
45
answer. (Examples 1, 2 and 4)
13
10
7=450
8 2
458
135
73
3245
6
4 =45
45°
5
2. m29 135°
G
90°
3. m27
Rat
How
Answer:
13 10 30 is numbers 438v135 73 3245
Hey Guys! Can you answer the question below? The first one gets the brainiest!
∠1 and ∠4 are corresponding angles has the same shape and size. ∠1 and ∠3 are diagonal from each other and ∠15 and ∠9 make a straight line.
What are parallel lines?Parallel lines represent coplanar endless straight lines in geometry that never intersect. Within a single three-dimensional space, parallel planes are any planes that never cross. Curves with a predetermined minimum distance between them and no contact or intersection are said to be parallel.
Euclid's parallel postulate deals with parallel lines. Euclidean geometry is indeed a particular example of this sort of geometry, and parallelism is essentially a feature of affine geometries.
∠1 and ∠4 are corresponding angles has the same shape and size
∠1 and ∠3 are diagonal from each other
∠15 and ∠9 make a straight line
Therefore, ∠1 and ∠4 are corresponding angles has the same shape and size. ∠1 and ∠3 are diagonal from each other and ∠15 and ∠9 make a straight line.
To know more about parallel lines, here:
https://brainly.com/question/29762825
#SPJ7
(PLS HURRY)
Choices:
A. 4m
B. 5m
C. 2m
D. 6m
Answer:
4m
Step-by-step explanation:
So 96 divided by 6 is 16, 16 divided by 2 is 8, 8 divided by 2 is 4.