Mathematics High School

A sample of 100 mg of cobalt is studied over time. After 1 year, the sample was measured at 97.5 mg. If the size of the sample continues to change at the same rate, which equation models the change?

Answers

Answer 1

Answer: B

Step-by-step explanation: The answer is B

Answer 2

Answer:

B

Step-by-step explanation:

Related Questions

Ellie ordered 3/4 of a pound of cheese from the deli. The deli has cheese slices that weigh 0.05 pounds each. Enter the number of cheese slices Ellie will receive.

Answers

Ellie will receive 15 slices of cheese.

A baker makes 4 apple pies and 9 chocolate cream pies what is the ratio

Answers

The ratio of apple pies to chocolate cream pies is 1:2.25 (apple:chocolate) since there are 9 chocolate and 4 apple, i divided 9/4 and got 2.25, meaning that 2.25 chocolate cream pies will be made by the time 1 apple pie is made.

- Find the sum of (2+4i) and (3-6i)

Answers

(2+4i )+(3-6i)

= 2 + 4i+3 -6i

= 5 - 2i

Answer:

5-2i

Step-by-step explanation:

(2+4i)+(3-6i)

2+4i+3-6i

5-2i

Please correct me if I am wrong

Determine if the equations are parallel, perpendicular, or neither.
5x + 3y = 3 and 3x + 5y = -25

Answers

to easily find the slope from standard form (Ax + By = C) use -A/B

1. m = -5/3
2. m = -3/5

perpendicular slopes are negative reciprocals, which these are not

parallel slopes are exactly the same, which these are also not

so, these equations are neither parallel nor perpendicular

Find the length indicated

Answers

It’s C because it equals to 13 so all you have to do is subtract 7 from 13.

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

The answer is choice D because if you subtract 7 from 13 you'll get 6.

I need help with this is anyone

Answers

Answer:

-w+41

Step-by-step explanation:

5(w+4)-3(2w-7)

5w+20-6w+21

-w+41

Some please help me!!! please I need it in 20 minutes!!!!

Answers

4. Acute triangle

5. Equilateral triangle

6. Right triangle

7. Acute triangle

8. Right triangle

9. Obtuse triangle

10. Obtuse triangle

11. Acute triangle

12. Acute triangle.

Those are all the answers I know. I'm pretty sure someone might do the rest.

4) Scalene Triangle
5) Equilateral Triangle
6) Isosceles Triangle
7) x= 93
8) x= 91
9)x=115
10)x= 115
11) x= 58
12)x= 75
13) x= 23
14) x= 51
15) x= 40

Can I get the brainliest !!
Thank you

If the question is how many variable terms are in 3x^3y + 5x7 - 4y + x-z+9 the answer would be 7 because each of the variables are separated by the + and - signs and if you count them like that right now you would get 5 and if you add the 3 from the beginning you would get 7 saying that the variable terms are represented by the letters am I correct.

Answers

Given:

The expression is

[tex]3x^3y+5x^7-4y+x-z+9[/tex]

To find:

The number of variable terms.

Solution:

Constant values, variables, product of constants and variables are known as terms if they are separated by  "+" sign.

The terms which contain atleast one variable is called variable terms.

We have,

[tex]3x^3y+5x^7-4y+x-z+9[/tex]

Here, the terms are [tex]3x^3y,5x^7,-4y,x,-z[/tex] and 9.

All terms contain variables except 9 which is a constant.

Therefore, the number of variable terms is 5.

Hence, your answer was not correct.

What is 2y to the negative 3rd power

Answers

Answer:

2y to the negative 3rd power is -2000

Step-by-step explanation:

Answer:

2 over y^3

Step-by-step explanation:

There are 1275 ants in 5 anthills how many are in 1 anthill?

Answers

Answer:

There are 255 ants in 1 anthill.

Step-by-step explanation:

Do the cross multiplication method. First set the equation as 1275/5 = x/1. Then cross multiply to get 5x = 1275. Divide both sides by 5 to get 255.

There are 225 ants in one ant hill

Rodrigo can carpet a house in twelve hours, working by himself. DaShawn can carpet the same house in ten hours . Working together, how long would it take Rodrigo and DaShawn to carpet the house

Answers

Answer:

I would say 2 hours but im not sure tbh.

Step-by-step explanation:

I NEED HELP ASAP PLEASE!
20 POINTS! ​

Answers

You gotta fond the radius of the circle
I’m pretty sure

I need this solved ASAP please
ratio 4:12 simplified.​

Answers

i’m not 100% certain but i’m pretty sure 1:3 works

Answer:

1/3

Step-by-step explanation:

4/12

2 goes in to 4 and 12, so 4 divide by 2 is 2 and 12 divide by 2 is 6 then you have to simplify it again since 2 can still go into 2 and 6 so 2 divide by 2 is 1 and 6 divide by 2 is 3.

The sum of two numbers is 25. The larger number is four times the smaller number. Find the numbers.

Answers

Answer:

5+20=25

Step-by-step explanation:

ok so 20/4 is 5 and 20 +5=25

so the only possible answer is 5+20=25

Hope this helps please give brainliest

What is the slope of the line whose equation is y-4=(x-2)?
6
S
3 2
1
-5-5-32
+
23
5 x
2719 2

Answers

Answer:

1

Step-by-step explanation:

y-4=(x-2)

This equation is in point slope form

y-y1 = m(x-x1)

where m is the slope

The slope is 1

y - 4 = x - 2

y = x + 2

Slope-intercept form is y = mx + b, where m is the slope and b is a constant.

Here, m = 1 and b = 2. Therefore, the slope is 1.

please help will mark brainlist ​

Answers

Answer: Correct me if im wrong but i strongly suggest (A.)

Answer:
Regular hexagons
Explanation:
The only regular polygons that can tessellate a plane are regular triangles, squares and regular hexagons.

dose anybody know this? could you provide the step by step

Answers

17 people because if they spend $300 the equation 300=5p+215, then subtract 215 on both sides then it would be 85=5p and then you divide 5 by 85 and you have 17 (sorry if i’m wrong!)

Can you make a triangle with the side lengths, 3, 8, 8?

Answers

Answer:

yes of course you can make a triangle

Answer:

No

Step-by-step explanation:

A triangle has ALL equal sides but since it's 3,8,8 you can't because not all side are equal

3.3...3 times 12 times equal in exponential form

Answers

Answer:

If you mean 3^12 then the answer is 531,441

Given that m=r-s/2nr

Make r the subject .

PLEASE I NEED IT NOW.

THANK YOU . WHOEVER ANSWERS FIRST I WILL GIVE A FOLLOW AND BRAINLIEST

Answers

Step-by-step explanation:

[tex]m = \frac{r - s}{2nr} [/tex]

m(2nr) = r-s

2×n×r×m = r-s

move the r on the right side to the left side

2nrm - r = -s

r ( 2nm - 1 ) = -s

[tex]r \: = \frac{ - s}{(2nm - 1)} [/tex]

Answer:

I think it will help you

x - 17 = 32 * linear equations

Answers

x= 49 hope this is what you needed!

Answer: x=49

x-17=32

Subtract 17 from both sides.

x=32+17

x=49

give the solution please now it is argent​

Answers

Answer: I am also not knowing this answer I am confused about the question.

Step-by-step explanation:

Answer:

your question is confusing

Step-by-step explanation:

im sorry

Please help ASAP please don’t lie

Answers

Answer:

B

Step-by-step explanation:

I believe the number of sides, and the number of lines of symmetry are the same.

Because, A "regular polygon" has all the same 5 sides all around, which would mean there's the same amount of lines of symmetry.

If is between 4 and 5, then x is _____. greater than 2 and less than 3 greater than 4 and less than 5 greater than 8 and less than 10 greater than 16 and less than 25

Answers

Answer:

between 4 and 5, also 4<5

=>4<x<5

=>greater than 4 and less than 5

Answer:

I think its 6

Step-by-step explanation:

If 4 less than 5 then 6 is Greater than 3.

So 6 is the blank

Hope this helps

Question 26 (1 point)
Find the distance between points P(7.1) and Q(5,7) to the nearest tenth.
PQ =

Answers

Answer:

The answer is 6.3 units

Step-by-step explanation:

The distance between two points can be found by using the formula

[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\[/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

P(7,,1) and Q(5,7)

We have

[tex] |PQ| = \sqrt{ ({7 - 5})^{2} + ({1 - 7})^{2} } \\ = \sqrt{ {2}^{2} + ({ - 6})^{2} } \\ = \sqrt{4 + 36 } \: \: \: \: \: \: \: \: \: \\ = \sqrt{40} \: \: \\ = 2 \sqrt{10} \\ = 6.32455532...[/tex]

We have the final answer as

6.3 units to the nearest tenth

Hope this helps you

Answer:

PQ=1.4 I think

Step-by-step explanation:

HELP ME ASAP BRO THIS IS DUED BY TONIGHT, LITERALLY ANYONE OUT THERE
What is the type of angle 12 and 6 form? and what is their relationship?

Answers

Answer:

Alternate angles

Step-by-step explanation:

Alternates angles are in a form of Z so the relationship between angle 12 and 6 are alternate angles.

what is the slope (m) and the y-intercept (b) for y = 4x -8 *

Answers

y=-4x-8

To find x-intercept / zero , substitute y=0

0=4x-8

Move Variable to the left-hand side and change its sign

-4x=-8

Divide both sides of the equation by -4

Answer: x=2

Solve the equation using the distributive property and properties of equality
2(x-8) = 68
What is the value of x?
O 26
30
0 38
042
plz help:(

Answers

X=42. Your multiply the 2 with the x then the 2 with the -8. Then your problem would be 2x-16=68. After that you add 16 to both sides, so the -16 cancels out. So now your problem would be 2x=84. Then divide 2 into the 84 then your answer would by x=42

Answer:

D; 42

Step-by-step explanation:

Please, Please help me

One number is 7 times a first number. A third number is 100 more than the first number If the sum of the three numbers is 865, find the numbers.

Answers

I believe the answer is 85

Which statement are true based on the diagram? Select 2 options

Answers

Answer:

Points J, K and Q are collinear

and

There is only one line that can be drawn through points L and P

The true statements are:

Points J, K and Q are collinear.

And, there is only one line that can be drawn through points L and P.

What is collinear Points?

Collinear points are the points that lie on the same straight line or in a single line.

How many lines can pass through two given points?

Only one straight line can pass through the two points.

According to the question

We have a diagram in which there are eight points and four lines.

From the given diagram we can see that points J, K and Q lie on the same straight line.

Therefore, points J, K and Q are collinear.

As we know that, only one straight line can pass through the two points.

Therefore, from  two points L and P only one straight line can be drawn.

Hence, statements second and fifth are correct.

Find out more information about collinear points here:

https://brainly.com/question/1593959

#SPJ2

Other Questions
use the simplified ratio to find the equivalent ratio with a denominator of 140 Observations can be ______ PLEASE ANSWER WILL GIVE BRAINLIESTYou are considering a $3,500 investment. The table shows the possible outcomes in cash flow next year. What is the expected rate of return on this asset?(see attachment) Which of the following statements is true?a) Carbon dioxide is easier to compress than water.b) Plasma is made of free electrons, ions, and neutral atoms.c) Bose-Einstein condensates form at very cold temperatures.d) All of the above. Whats wrong with the wind turbine? What is the meaning of disgust? how are proteins made in animals and humans NWhat is the value of y?O 3V3 unitsO6v3 unitsU39V3 unitsO 12V3 unitsTM LAST ONE NEED HELP ASAP !!! 9) Nancy starts a race at the start line and she is running 3 meters per second. Juan starts the same race 3 meters ahead of Nancy but he is going at 2 meters per second.Nancys equation: Juans equation: A mover applies a net force of 28 N to a sofa that has a mass of 70 kg.What will the sofa's acceleration be? Whats the y intercept PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :(( the product of -3 and t is greater then 11 Find two consecutive integers whose sum is eleven less than three times the smaller integer. Said adenine=thymine and guanine=cytosineI need help for a crossword Steven put together 2,494 pieces of a puzzle. About how many pieces did he put together? Which team wins in a tug-of-war, the team that pulls harder on the rope, or the team that pushes harder against the ground? Explain. Whats the point of standardizing weights and measures? What is possible if you and if can each agree on definition of a millimeter or a kilogram? PLSSS SOMEONE Why does evolutionary theory absolutely require the earth to be veryold?