Answer:
solution given:
[tex] \sqrt{9 \times 36} [/tex]=[tex] \sqrt{3² \times 6²} [/tex]=±(3×6)=±18 is your answer
The half life of a chemical element substance is 16 days, How long will it takes for the substance to decay from 120mg to 2 mg
Answer:
94.5 days
Step-by-step explanation:
We are asked to calculate the time.
The formula to calculate the time for half life =
t = t½ × In (Nt/No)/-In2
t½ = half life = 16 days
No = Initial substance = 120mg
Nt = Amount of substances after time t = 2 mg
t = 16 × In (2/120)/-In2
t = 94.510249529736 days
Approximately = 94.5 days
Therefore, the time it would take for the substance to decay from 120mg to 2 mg is 94.5 days.
solve for x by using the elimination method
Answer:
x=4
Step-by-step explanation:
the ones on top of each other you are adding together so -10x + -2x equals -12x and -32+-16 equals -48 and -48 divided by -12x equals positive 4
Answer:
Step-by-step explanation:
you can see from the picture that adding 2y and -2y cancels out. So the remaining parts of the equations are
-10x=-32
-2x=-16
add the two together:
-12x=-48
x=4
Which of the angles below are supplementary?
A.∠1and∠3
B.∠3and∠4
C.∠4and∠2
D∠3and∠1
In the 8-sided figure below, adjacent sides meet at right angles and the lengths are given are in meters. What is the perimeter of the figure, in meters?
40
40
80
80
120
120
160
160
400
400
Answer:
80
Step-by-step explanation:
Look at the figure below. The perimeter is the same as if the corners were moved out to form a square. Then you have 4 congruent sides of length 20.
P = 4 * 20 = 80
The perimeter of a shape is the summation of the sides of the shape. The perimeter of the shape is 80 units.
From the attached figure, we have the following observations
All sides of the shape are either vertical or horizontal lineNone of the side lengths overlapsThis means that if the shape is drawn (see attachment) to have 4 sides, opposite sides of the shape will be congruent.
The first side length is:
[tex]Length = 20[/tex]
While the adjacent side length is:
[tex]Width = 12 + 8 =20[/tex]
The perimeter (P) of the shape is then calculated as follows:
[tex]P = 2 \times (Length + Width)[/tex]
[tex]P = 2 \times (20 + 20)[/tex]
[tex]P = 2 \times 40[/tex]
[tex]P = 80[/tex]
Hence, the perimeter of the shape is 80 units.
Read more about perimeters at:
https://brainly.com/question/6465134
Suzanne folded 11 towels. If Allison folded 5 times as many towels as Suzanne, which number sentence shows how many towels Allison folded?
A.
5 × 5 = 25
B.
11 + 5 = 16
C.
11 × 11 = 121
D.
5 × 11 = 55
Answer:
D
Step-by-step explanation:
because 5 times 11 is 55. Times is also another word for multiplication.
Solve for x.
10
8
6
Answer:
18
Step-by-step explanation:
Intersecting Secants Theorem:
6(x + 6) = 8(8 + 10)
6x + 36 = 8(18)
6x + 36 = 144
6x = 144 - 36
6x = 108
x = 18
factor completely;
6x^2-37x-35
Answer:
(
−
7
)
(
6
+
5
)
g0gf0g0g0
Help! I don't understand this.
Answer:
x > 9.
Step-by-step explanation:
Here it is just simplifying the inequality.
6 - 2/3x < x - 9
Add 2/3x to both sides.
6 < 5/3x - 9
Add 9 to both sides.
15 < 5/3x
Multiply by 3/5.
9 < x
Flip it.
x > 9.
Answer:
x > 9
Step-by-step explanation:
I think I think I think I think
A triangle has two sides measuring 8 and 15. The included angle is 33°. What is the length of the side opposite the 33° angle?
Answer:
Measure of the side opposite to the angle measuring 33° is 9.37 unit
Step-by-step explanation:
If a, b and c are the sides of a triangle,
And 'a' = 8
b = 15
Measure of the Included angle C = 33°
By applying cosine rule in the given triangle,
c² = a² + b² - 2abcos(C)
c² = 8² + (15)² - 2(8)(15)cos(33°)
= 64 + 225 - 201.28
= 87.72
c = √87.72
c = 9.266
≈ 9.27
Therefore, measure of the side opposite to the angle measuring 33° is 9.37 units
There are 200 marbles in the bag, John picks 10 marbles out of
the bag and 6 of them are red. What would be an estimate for
the number of red marbles in the bag?
Answer:
Step-by-step explanation:
favorable success: 6/10
marbles: 200
So
P=Favorable cases/total cases
P=6(20)/10(20)
P=120/200
60Answer:
Step-by-step explanation:
A music store has 10 flutes costs $325.50 what is the cost of 10 flutes
REPOST!!!!!!! 15 POINTS!!!!!!!
4. if m<AOB = 45° in circle O, what is m<ABC yeah, and I need help with
Answer:
m<ACB=1/2 of m<AOB
so m<ACB=45⁰÷2
m<ACB=22.5⁰
I HOPE IT HELPS HAVE NICE DAY!
Answer:
m<ACB=22.5° [as inscribed angle is half to the central angle]
Identify the y intercept of the function -3(3)^x +4
A) (0,-3)
B) (0,1)
C) (0,-7)
D) (0,4)
Please help :(
Monica and Brianne each draw one prize ticket at random from different boxes. Monica has a 20% chance of winning a prize. Brianne has a 1/10 chance of winning a prize. Is Monica or Brianne more likely to win a prize? Explain your reasoning.
Answer: Monica
Step-by-step explanation:
Given
Monica has a 20% chance of winning a prize
Brianne has a [tex]\frac{1}{10}[/tex] chance of winning a prize
20% chance refers to
[tex]\dfrac{20}{100}=\dfrac{2}{10}[/tex]
As
[tex]\dfrac{2}{10}>\dfrac{1}{10}[/tex]
therefore, monica is more likely to win the prize.
What’s the scale factor?
20:4
4:1
16:1
64:1
Answer:
B
Step-by-step explanation:
prove
tantheta cottheta= Sec theta csc theta
Answer:
Step-by-step explanation:
LHS
tan θ * cot θ
= sin θ / cos θ * cos θ / sinθ
= 1
RHS
sec θ * cos θ
= 1/cos θ * cos θ
= 1
Therefore LHS = RHS proved.
Why are Cells Important
Answer:
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Step-by-step explanation:
Hopes this help.
The body of a 154 pound person contains approximately 2×10-1 milligrams of gold and 6×101 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times the number of milligrams of gold in the body?
Answer:
300
Step-by-step explanation:
6 × 10¹ ÷ 2 × 10-¹
= 300
no of aluminium is 300 times more than that of gold
answer asapppldfghjkl;uytjfgnvblh
What is the range of 4,3,3,6,10,7,4,3
Step-by-step explanation:
We have,
3,3,3,4,4,6,7,10
The largest number (L) = 10
The smallest number(S) = 3
Since, the range is the difference between the largest and the smallest value given in the data,
Here,
R = L-S
= 10-3
= 7
Thus Range = 3
need help again!! with a similar question
Answer:
9 gal
Step-by-step explanation:
PLSSS HELPPPPP WILL REWARD THE BRAINLIESTTT SOONER OR LATER THATS A PROMISE
Answer:
Divide both sides by L
Step-by-step explanation:
Because L is multiplied by W, to find W you would need to move the L to the other side by doing the reverse operation, which in this case is division.
In the equation (x+2)2+(y-3)2=4, the diameter of the circle is...
16
4
3
2
Answer:
4
Step-by-step explanation:
The given equation of circle is:
[tex] (x+2)^2 +(y-3)^2 =4 [/tex]
[tex] (x+2)^2 +(y-3)^2 =2^2 [/tex]
Equating it with:
[tex] (x-h)^2 +(y-k)^2 =r^2 [/tex]
We find:
[tex] r^2=2^2 [/tex]
[tex]\therefore r=2 [/tex]
Radius of the circle = 2 units
Therefore,
Diameter of the circle = 2*2= 4 units
Substitution method please help :3
Answer:
5x-27y=-2
Step-by-step explanation:
-2x+7x=5x
y-3y=-27y
0-2=-2
5x-27y=-2
convert 15 into quinary number system
Answer:
3 is answer .
follow me and help me
what is the area of the red shape
For all three water parks the cost of a function of numbers of right compare the functions for all three water parks in terms of the rate and change describe the impact it has on the total cost of the attending of each park
Answer:
See Explanation
Step-by-step explanation:
Given
See attachment for complete question
First, we determine the cost function for all the three rides.
Ride A
From the graph, we have the following points
[tex](x_1,y_1) = (0,8)[/tex]
[tex](x_2,y_2) = (2,12)[/tex]
Calculate slope
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{12-8}{2-0}[/tex]
[tex]m = \frac{4}{2}[/tex]
[tex]m =2[/tex] --- This represents the rate per ride
The equation is the calculated as:
[tex]y = m(x - x_1) + y_1[/tex]
So, we have:
[tex]y = 2(x - 0) + 8[/tex]
[tex]y = 2(x) + 8[/tex]
[tex]y = 2x + 8[/tex]
So, the cost function is:
[tex]C(x) =2x + 8[/tex]
Calculate the cost of admission i.e. x=0
[tex]C(0) = 2*0+8 = 8[/tex]
So, we have:
[tex]C(0) = 8[/tex] --- Admission Charge
[tex]C(x) =2x + 8[/tex] --- Cost function
[tex]m =2[/tex] --- Rate per ride
Ride B
From the table, we have the following points
[tex](x_1,y_1) = (0,12)[/tex]
[tex](x_2,y_2) = (4,15)[/tex]
Calculate slope
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{15-12}{4-0}[/tex]
[tex]m = \frac{3}{4}[/tex]
[tex]m = 0.75[/tex] --- This represents the rate per ride
The equation is the calculated as:
[tex]y = m(x - x_1) + y_1[/tex]
So, we have:
[tex]y = 0.75(x - 0) + 12[/tex]
[tex]y = 0.75(x) + 12[/tex]
[tex]y = 0.75x + 12[/tex]
So, the cost function is:
[tex]C(x) = 0.75x + 12[/tex]
Calculate the cost of admission i.e. x=0
[tex]C(0) = 0.75*0 + 12=12[/tex]
So, we have:
[tex]C(0) =12[/tex] --- Admission Charge
[tex]C(x) = 0.75x + 12[/tex] --- Cost function
[tex]m = 0.75[/tex] --- Rate per ride
Ride C
No additional fee;
So, the cost function is;
[tex]C(x) = 30[/tex]
In summary, we have:
Ride A
[tex]C(x) =2x + 8[/tex] --- Cost function
[tex]m =2[/tex] --- Rate per ride
Ride B
[tex]C(x) = 0.75x + 12[/tex] --- Cost function
[tex]m = 0.75[/tex] --- Rate per ride
Ride C
[tex]C(x) = 30[/tex] --- Cost function
By comparison
Ride A has the highest rate per ride of (#2), followed by ride B with a rate of #0.75 per ride.
Ride C has no charges per ride
The impact on the total cost is that:
Ride A: People that opt for ride A will pay the least to get admitted (i.e #8) but they pay the most (i.e. #2) per each ride they take
Ride B: People that opt for ride B will pay #12 to get admitted, but they pay 0.75 per each ride they take
For A and B, the overall cost depends on the number of rides taken.
Ride C: Irrespective of the number of rides taken, people that opt for ride C will pay the same flat fee of #30
Nina can type 128 words in 4 minutes. At this rate, how many words can Nina type in an hour.
Answer:
1,920 words
Step-by-step explanation:
60 divided by 4 is 15
15 times 128 is 1,920.
Hope it helps! :)
Answer:
1920
Step-by-step explanation:
We know that it takes her 4 minutes to type 128 words
So we need to figure out how many it takes her to type a word per minute
128 divided by 4=32
So multiply 32 word by 60 ( 60 mins = an hour)
Answer=1920
pls help me first of all how do you add a photo?
Answer:
there should be a "paper clip" sign
Step-by-step explanation:
then go to it click it and pick or take a photo
I need help please hurry!
Answer:
I would think 1050 but I may be wrong