Element X is a radioactive isotope such that every 28 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 50 grams, how much of
the element would remain after 11 years, to the nearest whole number? I will give brainly for it

Answers

Answer 1

Answer:

38

Step-by-step explanation:


Related Questions

CAN ANYOJ HELP? THANKS

Answers

I got c= -42 by simplifying both sides of the equation then isolating the variable sorry if it’s wrong

Please help! If you do you will get 'Brainliest'

Answers

Answer:

B

Step-by-step explanation:

This is because 1/2 down from 1 1/2 is 1 then go 2 down on the number lone and you get 1 (B)

Answer:

your answer is D.

Step-by-step explanation:

if you go 2 numbers to the right you get 3 and now the half would go in between 3 which would make your answer 3 and one half.

A number cube has 6 different faces, numbered 1 to 6. All faces have an equal probability of being rolled. What is the probability of rolling a 5?


please no links or weird pictures!

Answers

Answer:

its a 1/6 chance

Step-by-step explanation:

each face has a 1/6 chance of being rolled since there are 6 faces

Answer:

Answer:

40.2 % to the nearest tenth.

Step-by-step explanation:

Probability( 6 on one roll = 1/6).

Probability (6 on first roll and NOT 6 on the next 5 rolls) = 1/6 * (5/6)^6

= 3125/46656

= 0.06698

Only 1 six rolled can happen in  6 different ways ( where the 6 is on the second, third roll etc.)

So the required probability is 0.06698 * 6 = 0.40188.

Step-by-step explanation:

Found this

hello please help thanks i’ll give brainliest!

Answers

Answer:

Step-by-step explanation:

Plate tectonics is a scientific theory describing the large-scale motion of the plates making up the Earth's lithosphere since tectonic processes began on Earth between 3.3 and 3.5 billion years ago. The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century.

need help no bots those guys r so annoying

Answers

Answer:

AC = 16

KL = 5.625

Source(s):

Dude trust me

brainliest tho??

Step-by-step explanation:

5/KL = 12/13.5

12KL = 67.5

KL = 5.625

AC/18 = 12/13.5

13.5AC = 216

AC = 16

What is the third angle of a right triangle if one of the angles measures 42.6

Answers

Answer:

112

Step-by-step explanation:

lol not 100% sure

Right angle = 90
Total angle for triangle = 180
To find the third angle
180-90-42.6 = 47.4

factor completely;
3x^2 - 28x + 49

Answers

Answer:

(3x-7) (x-7)

Step-by-step explanation:

Answer:

(3x-7) (x-7)

PLEASE MARK BRAINLIEST

Step-by-step explanation:

32−28+49

32−7−21+49

-----

32−7−21+49

(3−7)−7(3−7)

---->(3x-7) (x-7)

Rectangle ABCD is translated to form the image A'B'C'D'.
What are the new coordinates of point D?

Answers

Answer:

i think its (6,4)

Step-by-step explanation:

y is directly proportional to x^3
y = 17
when
x = 4
Work out an equation connecting y and x.​

Answers

Answer:

[tex] 64y = 17 {x}^{3} [/tex]

Step-by-step explanation:

[tex]y \: \alpha \: {x}^{3} ....(given) \\ \therefore \: y = k {x}^{3} .. (1)\\ (k =arbitrary \:constant) \\when \: x = 4, \: \: y = 17, \:k =? \\ 17 = k {(4)}^{3} \\ 17 = 64k \\ k = \frac{17}{64} \\ plug \: k =\frac{17}{64} \: in \: equation \: (1) \\ y = \frac{17}{64} {x}^{3} \\ 64y = 17 {x}^{3} [/tex]

The correct equation connecting y and x is,

⇒ y = 17/64x

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

⇒ y is directly proportional to x³

Hence, We get;

⇒ y = kx³

Here, y  17 at x = 4;

Hence,

⇒ 17 = k × 4³

⇒ k = 17 / 64

Thus, The correct equation connecting y and x is,

⇒ y = 17/64x

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

help solve pls””/“/“/“

Answers

Answer:

[tex]p(11)=626[/tex]

Step-by-step explanation:

Substitute the value (p(11)) into the function and evaluate by solving. Do not forget to follow the order of operations. The order of operations is the steps one must do operations in an equation in order to get a valid result, they are the following,

1. Parenthesis

2.Exponent/Radicals

3.Multiplication/Division

4.Addition/Subtraction

[tex]p(x)=5(x^2+1)+16[/tex]

Substitute,

[tex]p(11)=5((11)^2+1)+16[/tex]

Simplify,

[tex]p(11)=5(121+1)+16[/tex]

[tex]p(11)=5(122)+16[/tex]

[tex]p(11)=610+16[/tex]

[tex]p(11)=626[/tex]

Solve :p (algebra)


3+5

Answers

Answer:

8...

Step-by-step explanation:

The answer is 8 .....

What is the slope of the line that passes through the points (3, -2) and (9, -2)?

0
3
-3
undefined

Answers

Answer:

undefined

Step-by-step explanation:

Answer:

a) 0

Step-by-step explanation:

hope this helps {ribbit}

~tsu-chan :p

Which choice is equivalent to the product below?
√2 x √8 x √4

A. 8 √2
B. 4 √2
C. 4
D. 8

Answers

I think the answer is C

Answer:

8

Step-by-step explanation:

The sum of the measures of two angles is 90° one angle has a measure of 32.8° the other angle is represented by X what is the measure of the second angle

Answers

Answer:

x = 57.2

Step-by-step explanation:

Equation:

32.8 + x = 90

x = 90 - 32.8

x = 57.2

There are _ total possible outcomes.

Answers

Answer:

20 possible outcomes

Step-by-step explanation:

You want to buy a pet lizard that costs $57. You already have $18 and you
plan to save $8 per week. If w represents the number of weeks until you
have enough money to buy the lizard, what equation could you use to find
the value of w?

Answers

Answer:

8w + 18 = 57

bonus answer: w = 4.875 or 5 weeks

Step-by-step explanation:

Someone help plz make sure it’s right and plz put an actual answer

Answers

Answer:

Option 3

Step-by-step explanation:

By applying Pythagoras theorem in the given triangle,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

x² = (9.5)² + (10.5)²

x² = 200.5

x = √(200.5)

x = 14.16

x ≈ 14.2

Therefore, measure of the unknown side is 14.2 in.

Option (3) will be the correct option.

∠A and \angle B∠B are complementary angles. If m\angle A=(6x+22)^{\circ}∠A=(6x+22) ∘ and m\angle B=(7x+16)^{\circ}∠B=(7x+16) ∘ , then find the measure of \angle B∠B.

Answers

Answer: B = 44

Step-by-step explanation:

The measure of ∠B = 44°.

We have two angles ∠A and ∠B which are complementary of each other.

We have to find the measure of ∠B.

What are Complementary angles?

Two angles are said to be complementary if their sum is equal to 90°.

Mathematically -   x + y = 90°

According to the question -

∠A = (6x+22)°

∠B = (7x+16)°

Now, ∠A and ∠B are Complementary angles. Therefore -

∠A + ∠B = 90°

(6x + 22) + (7x + 16) = 90

13x + 38 = 90

13x = 52

x = 4

Therefore -

∠B = 7x + 16 = 7 x 4 + 16 = 44°.

Hence, the measure of ∠B = 44°.

To solve more questions on Complementary angles, visit the link below-

https://brainly.com/question/26142428

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A store sells cans of tomatoes priced as shown.


Canned Tomatoes
Size Cost
10 ounces $0.89
15 ounces $1.29
18 ounces $2.26
32 ounces $3.39


Which size can of tomatoes has the lowest cost per ounce?

Answers

Answer:

I think the answer is b

Step-by-step explanation:

1.29/15= 0.086 this is the lowest cost out of all them

Answer: yea person on top of me is  right b 15 ounce

Step-by-step explanation:

.
Which set of angle measures CANNOT be the angle measures of a triangle?
A= 60,60,61
B=1,1,178
C=13.9,16.1,160
D,59,60,61

Answers

Answer:

a

Step-by-step explanation:

it must not be above 180

for brainiest:):):):):):):):):):)

Answers

Please mark me Brainliest!!!!

A- it would originally be $48
B- it would originally be $90

Hope this helps!

Does the point (0,0) satisfy the equation y = 9x?
yes
no

Answers

yes, because 0 = 9 x 0.

Please help me I cant understand how to find the volume of different shapes for the life of me

Answers

Answer:

seeing as no one is answering I will

A number cube has 6 different faces, numbered 1 to 6. All faces have an equal probability of being rolled. What is the probability of rolling a 5?

If a person trys to say to pick a link to find the answer I will report you and email brainly!!​

Answers

Answer:

its a 1/6 chance

Step-by-step explanation:

each face has a 1/6 chance of being rolled since there are 6 faces

The ratio of boys to girls in class is 4 : 5
What fraction of the class are boys

Answers

Answer:

The ratio of boys to girls is 4:5. So let 4x be the number of boys and 5x be the number of girls. Then 4x+5x = 9x is the total number of students. Then the fraction of boys in the class is 4x/9x = 4/9.

A rectangular fish tank is 22 inches tall. The base edge lengths are 20 inches and 18 inches. What is the total surface area of the fish tank?

Answers

Answer:

2392in^2

Step-by-step explanation:

Given data

Dimension

Height 22 inches

Lenght= 20inches

Width= 18inches

The expression for the total surface area is

TSA=2(lw + lh + wh)

Substitute

TSA=2(20*18+20*22+18*22)

TSA=2(360+440+396)

TSA=2*1196

TSA=2392 in^2

Hence the total surface area is 2392in^2

Jarvis a 41-year old male, bought a $115,000, 20yr life insurance policy thru his employer. Jarvis is paid weekly. How much is deducted from each of his paychecks for life insurance?

Answers

Answer: $30.25

Step-by-step explanation:

Amount of insurance policy bought = $115,000

Number of years for the life insurance = 20 years.

From the chart, the Annual premium per $1000 of coverage for 20 years for a male of 40-44 years is $13.68. Therefore, the annual premium will be:

= (115,000 / 1,000) × $13.68

= 115 × $13.68 =

= $1,573.20

Note that 52 weeks make a year. Therefore, the weekly deductions will be:

= $1,573.20 / 52

= $30.25

Therefore, the correct option is D.

5 points
If f(x) = 3 sin 2x + c, what is the maximum value
of f(x)?
A) c+5
B) c+2
C) c
D) c +3
A
B

Answers

Answer:

D

Step-by-step explanation:

The maximum value of sin is 1. The Ampltiude is 3 so the maximum value of sin is 3 now.

The vertical shift is c so whatever value of c would be add to the maximum value z 3

D is the answer.

PLEASEEE HELP ME! ASAAAPPO

Answers

Answer:

a. x = 22

b. Perimeter = 100

Step-by-step explanation:

a. Based on the proportionality theorem, we have the following:

(2x - 4)/8 = (36 - 6)/6

(2x - 4)/8 = 30/6

(2x - 4)/8 = 5

Cross multiply

2x - 4 = 8*5

2x - 4 = 40

2x = 40 + 4

2x = 44

x = 44/2

x = 22

b. Perimeter of ∆JKL = KJ + KL + JL

KJ = 2x - 4 + 8

Plug in the value of x

KJ = 2(22) - 4 + 8

KJ = 44 - 4 + 8 = 48

KL = 36

JL = 16

Perimeter = 48 + 36 + 16

Perimeter = 100

Which statement is true about rectangular prisms?
A. All rectangular prisms have five faces.
B. The bases are always congruent.
C. The lateral faces are always congruent.
D. All rectangular prisms have three lateral faces.

Answers

Answer:

it b

Step-by-step explanation:

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