Mathematics College

An element with mass 970 grams decays by 27.7% per minute. How much of the element is remaining after 13 minutes, to the nearest 10th of a gram?​

Answers

Answer 1
1-27.7% = 1-0.277 = 0.723
970*0.723^13 = 14.3 grams

Related Questions

Only answer please because Due now.

Answers

Answer:

B. Not enough information.

Step-by-step explanation:

We are given that all three angles of ∆DEF is congruent to all the three corresponding angles of ∆XYZ. However, this is is not enough to prove that they are both congruent to each other. There's no information about any of tge side length.

AAA is not a criterion that proves two triangles are congruent.

Therefore, we will conclude that there is not enough information.

Calculate the mean: $1,001, $68.50, $33.82, $581.95. (Round your answer to the nearest hundredth.)

Answers

Answer:

Step-by-step explanation:

(1001+68.5+33.82+581.95)÷4=400(nearest to hundred)

What is the first step in solving 11x+1=67

Answers

Answer:

The second one

Subtract 1 from both sides

Answer:

subtract 1 to both sides

Step-by-step explanation:

11x+1=67

    -1   -1

11x=66

/11   /11

x=6

2 The width of a rectangle is represented by 5 + 2y.
The length is twice as long as the width. What is the
perimeter of the rectangle? Select all correct expressions
A
4(5 + 2y)
B 6(5.+ 2y)
C 20 + 8y
D 30 + 12y

Answers

Answer:

your answer is B 6(5.+2y)

forgive me if i am wrong


[tex]4.6 + 5.1 - 3.2 = [/tex]
​

Answers

the answer is 6.5. 4.6+5.1=9.7-3.2=6.5
Remember PEMDAS. Add, then subtract. Don’t let the fact that you’re adding decimals confuse you, it’s the same thing as adding any other number.

1. add 4.6+5.1
Put the numbers on top of each other and line up the decimal places. Add.

2. take the number you got from step one, and subtract 3.2.

Hope this helps!

Find the value of x please help

Answers

answer:::::: the answer is 4.

The perimeter of the triangle is 30 cm
The perimeter of the rectangle is also 30 cm.
Use this information to find the area of the square below.

Answers

Answer:

square's area is 25.

Step-by-step explanation:

A bus traveling from Memphis to Nashville has an average speed of 53 mph. How long will the trip take in hours if the distance between the two cities is 220 miles? ( HOW DID YOU GET YOUR ANSWER PLEASE SHOW YOUR WORK, DO NOT BOTHER ANSWERING IF YOU DO NOT SHOW WORK AND TELL ME HOW YOU GOT YOUR ANSWER!!)
A. 48.14
B. 22.36
C. 192
D. 4.15
E. .50
F. 0
G. .251
H. 1.25
I. -135

Answers

Answer:

the answer is 4.15.

Step-by-step explanation:

this is super easy my ffriend. think about it. 53 miles per hour. how many miles do u go in an hour... 53 MILES PER HOUR. so you now know you go 53 miles every hour. so what you then do is see that it is 220 miles to ur destination. in an hour you go 53 miles so you take 220 DIVIDED BY 53 and you get ur answer.

What is the mean of 4,6,8,20, 12?

Answers

Answer:

add them all up which is 40 then divide by the amount of numbers there are. in this case 5, so 40 ÷ 5 = 8

Answer:

502 is the answer. of this question

(-5x) ×(-6) please it is urgent​

Answers

Answer:

30x

Step-by-step explanation:

Answer:

30x

Step-by-step explanation:

a negative multiplied by a negative is positive.

-5x x -6 =30x

Hope I helped!

Is 3,9,27,81 an arithmetic sequence

Answers

Answer:

no, it's geometric sequence

Step-by-step explanation:

hmm

12
56
87
43
9 10
12 11
13/14
16/15
Which angle must also measure 85°?
O 2
O 5
O11
0 12

Answers

Answer:

11

Step-by-step explanation:

11 has 85° because it is opposite to 9

The angle that must also be measured of 85° is angle 11.

Option C is the correct answer.

What is an angle?

The angles between two lines are the angles formed by two intersecting lines, measured in degrees or radians.

Several different types of angles can be formed between two lines, including acute angles, right angles, and obtuse angles.

We have,

In the diagram,

∠9 = 85

This means,

∠9 and ∠11 are opposite angles.

And,

Opposite angles are equal.

So,

∠9 = ∠ 11 = 85

Thus,

The measure of angle 11 is also 90.

Learn more about angles here:

https://brainly.com/question/7116550

The complete question.

In the diagram, the measure of angle 9 is 85°

Which angle must also measure 85°?

One-step multiplication & division equations: fractions & decimals
Solve the equation
= 4.5

Answers

Answer:

[tex]i[/tex] = 13.5

Step-by-step explanation:

Explanation:-

Given that the equation

          [tex]\frac{i}{3} = 4.5[/tex]

cross multiplication, we get

         [tex]i[/tex] = 4.5 × 3

       [tex]i[/tex] = 13.5

One bag of apples weighs
2
3
4
pounds. How much would 5 bags of apples weigh?

Answers

Step-by-step explanation:

5x 234 = 1170 pounds

hope this is right, the number was hard to read.

5/6 divided by 1/2=
Please help me!!

Answers

It’s 5/3 smanqnwnnwen wbwnwnw

Right right triangle has an angle that measures 54° which could be the measure of another angle in the triangle

Answers

Answer: 36 degrees

Step-by-step explanation:

A triangle angle sum is 180.

So 90 + 54 = 144

180-144 =36

A tailor has 13 1/2 yards of fabric to use for making costumes. For each costume, he needs 1 1/2 yards of fabric for the top and 3/4 yards bottom. How many costumes can he make

Answers

Answer:

6 complete costumes

Step-by-step explanation:

he has 27/2 total fabric

1 costume requires 1 2/4 + 3/4 of fabric, which is 2 1/4

we divide 27/2 by 9/4

27/2 x 4/9 = 6

6x1/5 in simplest form it’s for my cousin

Answers

Answer:

6/5 or 1 1/5

Step-by-step explanation:

Answer:

6/5

Step-by-step explanation:

6*1/5 = 6/5 is the answer

need answer, urgent.

Answers

Answer:

C

Step-by-step explanation:

sinA×cotA

= sinA×cosA/sinA

= sinA gets canceled out so,

=cosA

The answer your looking for is C

Which of the following is a polynomial?
A.
(x - 2)
(x++3)
B. +2
х

c. x2-1
D. x + x4 + 16

Answers

Answer:

x++3 is even equal sides

Step-by-step explanation:

4
The factorization of 12x + 15 is Help please

Answers

Answer:

3

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

#

please help me with this diagram please :))

Answers

Answer:

Step-by-step explanation:

m=72° (corresponding angles)

n=m=72° (corresponding angles)

p=180-(80+72)=180-(152°)=28°

x=np=5

y=nm=8

z=pm=12

Fill in the blanks below in order to justify whether or not the mapping
shown represents a function.

first bank says , the mapping diagram above { represents } or does { NOT represent } a function since ..

blank 2 says { for each number } or { there is one number }

blank 3 says { set a the output } or { set b the input } or { set a the input } , and { set b the output } !

Answers

1) it's a function 2) for each number 3) set a input and set b output

to be a function, no ordered pairs should have same first coordinate, hence this is a function

What is the median for the set of data?
6, 7, 10,12,12,13

Answers

Sorry but I need more information

number of
teaspoons
number of
tablespoons
number of
cups
2
36
12
48
3
3

Answers

Answer: 2 each

Step-by-step explanation:

A pair of basketball shoes was originally priced at $80, but was marked up 37.5%.
What is the new price of the shoes after the mark up?

Answers

Answer:

110

Explanation:

First move the decimal point over to the left twice.

.375

Then multiply 80 by .375 like this :

.375 x 80 = 30

Lastly, add 30 to 80 and put the dollar sign.

$110

Marking brainliest 13 points

Answers

Answer:

3183.96 cm³

Step-by-step explanation:

The formula for volume of a cylinder is: V = pi times r² times h.

Hope it helps!

Answer:

12742

Step-by-step explanation:

i used a volume calculator hope this helps though :)

Can someone help im not good with ratios.

Answers

Answer:

4:1

Step-by-step explanation:

60/15 simplified 4/1

Can I please get help

Answers

Answer:

F for number 14

Step-by-step explanation:

How much money needa to be deposited now into an account to obtain 9,000 in 7 years if the interest rate is 8% per year compounded continuously?

Answers

Answer:

P: the principal, the amount invested

A: the new balance

t: the time

r: the rate, (in decimal form)

Step-by-step explanation:

Ex1: If $1000 is invested now with simple interest of 8% per year. Find the new amount after two years.

P = $1000, t = 2 years, r = 0.08.

A = 1000(1+0.08(2)) = 1000(1.16) = 1160

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