An element with mass 590 grams decays by 19. 5% per minute. How much of the element is remaining after 15 minutes, to the nearest 10th of a gram?

Answer:

yes they are

Step-by-step explanation:

If you distribute the minus then the 4 becomes positive.

Have a great day!

If it helped mark me brainliest!

Answer:

yes

Step-by-step explanation:

x - (-4)

Apply rule - (-a) = a:

⇒ x + 4

Answer:

The answer is D

Step-by-step explanation:

the only one that makes sense

Answer: The 2nd choice.

Step-by-step explanation:

The y-intercept is the y coordinate when x = 0. Based on the table, we can see that the y coordinate is 12 when x is 0.

The slope is equal to (y2-y1)/(x2-x1) for any given points (x1,y1) and (x2,y2).

We can choose the point (0,12) to represent (x1,y1) and the point (6,0) to represent (x2,y2).

Therefore, the slope is (0-12)/(6-0) = -12/6 = -2

Answer:

1/6

Step-by-step explanation:

since area is l*w=a that means 3 1/3*2 1/5 is teh same as 3.333333*2.5 which is 8.33333333333 or 8 1/3 since you are multiply using the square method we just need to do 1/2 *1/3 this gives us 0.166666666667 or 1/6  

hope this helps this is 100% correct

Answer:

x = 129° ( linear pair then vertically opp angles)

Answer:

The multiplicative inverse of y is - 1/y

Step-by-step explanation:

hope this helps :)

Answer:

about 30

Step-by-step explanation:

Convert 74% to  a decimal by dividing by 100 or by moving the decimal two places left.

74.% = 0.74

Multiply

0.74 x 40 = 29.6

Round to the nearest whole number

29.6 = 30

Answer:

P≈14.14

Step-by-step explanation:

Diagonal

5

Using the formulas

P=4a

d=2a

Solving forP

P=22d=2·2·5≈14.14214

Answer:

About 14

Step-by-step explanation:

The diagonal BD is the hypotenuse of the triangol ΔBCD. You can find the lenght of the side BC (BC = BD × cos α = 5 × cos 45° = 3.54) or the lenght of the side CD (CD = BD × sin α = 5 × sin 45° = 3.54). Now you can multiply 3.54 by four to find the perimeter (P = 3.54 × 4 = 14.16).

Answer: 14.16 (I don't know the unit of measurement).

I hope I helped you :D

Answer:

2m/3-4n

Step-by-step explanation:

Answer: The numbers are decreasing by 2. So that means that the eighteenth number would be -29.

Explanation:

{5, 3, 1, -1, -3, -5, -7, -9, -11, -13, -15, -17, -19, -21, -23, -25, -27, -29...}

Step-by-step explanation:

parellogram

two opposite sides are equal

opposite angles add up to 180°

Answer:

a. Total field goal points scored in the first two quarters, in simplest linear expression form is: 3x - 4.

b. The total points scored in the game, in simplest linear expression form is: 6x - 1.

a. The goal points scored in the first two quarters are expressed in linear forms as: 2x - 6 and x + 2.

The total field goal points in the first two quarters = 2x - 6 + x + 2

Add like terms

3x - 4

b. The total points scored in the game = 2x - 6 + x + 2 + 2x + x - 6 + 9

Add like terms and simplify the expression

2x - 6 + x + 2 + 2x + x - 6 + 9

6x - 1

Step-by-step explanation:

Answer:

B= (3, 0)

Step-by-step explanation: I had this question before so I know it

Answer:

[tex]({2x}^{2} )^{3} \times ( - {x}^{4} )[/tex]

[tex] {2x}^{6} \times ( - {x}^{4} )[/tex]

[tex] - {2x}^{6 + 4} [/tex]

[tex] - {2x}^{10} [/tex]

hope it helps you :)

Answer:

THE AXIS OF SYMMETRY IS ALWAYS THE X VALUE OF THE VERTEX

Step-by-step explanation:

The vertex is where the graph performs the u shape bend.

The vertex is always -b/2a. so in problem one, it would be 6/2(3) which is 1. That is the x value so the axis of symmetry would be x=1.

Answer:

128 people can share

Step-by-step explanation:

hope this helps! have a great rest of ur day :)

Answer:

x = 50°

y = 50°

z = 80°

Step-by-step explanation:

working out x:

angles on a straight line add up to 180°

x + 130° = 180°

subtract 130 on both sides

x = 180° - 130°

x = 50°

working out y:

two vertical lines means that both sides are equal, so both angles are also equal (it's an isosceles triangle). This means that y is the same angle as x = 50°

y = 50°

working out z:

the sum of a triangle add up to 180°

add up the angles of x and y and equate to 180°

50 + 50 + z = 180

100 + z = 180

subtract 100 on both sides

z = 180 - 100

z = 80°

Answer:

first you find the common denominator, it is 6.

so the numbers would stay the same. now that our denominators are the same we shall add.

1+2 = 3

3/6.

You can simplify by thinking what multiplication table is 3 and 6 in? its 3 so simplify

3/6 divide both by 3

you get 1/2 so your final answer shall be 1/2

Answer:

10π

Step-by-step explanation:

The circumference of a circle is the distance of the outside of the circle. The formula for circumference is C=2πr.

In the question, you are given the diameter. Diameter is the radius times 2. So, to find the radius you can divide the diameter by 2. Since, 10cm/2 is 5 cm, 5cm is the radius.

Then, plug this information into the formula to solve for C.

This means that, in terms of pi, the circumference is 10π cm.

Answer:

If the mother (red line) cycles at 12 mph, it means that in half an hour (x=0.5) she cycled for 6 miles.

The daughter (blue line) walks at 1/3 of her speed, or 4 mph. It means that in half an hour she traveled 2 miles, and 4 miles after an hour.

Assuming that they start at the same point at distance zero, it's just joining the dots.

⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

8

⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

Step-by-step explanation:

First Let's know how to find the mean;

The mean is the same as the average value in a data set.

Solve;

3+4+5+7+10+12+15=56

Count; 3,4,5,7,10,12,15​=7

Now divide..

56/7 = 8

Hence, Mean of the given date is 8.

⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

~[RevyBreeze]~

Answer:

  C.  (-4,0), (4,0)

Step-by-step explanation:

A function has an x-intercept at the point where the function value is zero. The given chart lists two values of x where f(x)=0: x=-4 and x=4. The x-intercepts are ...

  (-4, 0), (4, 0)

Answer: $66.682

Step-by-step explanation: I think this is there answer. Correct me if I’m wrong

Yes because if she's going one in one out it is a chance thats what shes doing

The probability that the teacher puts them in a line alternating boys and girls is 1/352714

Probability is the likelihood that an event will occur and is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Given: There are 11 boys and 10 girls in a classroom.

A teacher chooses a student at random and puts at the head of a line.

Number of students=  [tex]^{21}P_{21}[/tex]/ 11 ! * 10!

                         = 21 !/11!*10!

                         = 21*20*19*18*17*16*15*14*13*12*11!/11!* 10*9*8*7*6*5*4*3*2*1

                         = 352714

P(alternate boys and girls)= n(A)/n(S)

                                           = 1/ 352714

Learn more about probability here:

brainly.com/question/11234923

#SPJ2

Work Shown:

1 foot = 12 inches

1 yard = 3 feet = 3*12 = 36 inches

(1 yard)^3 = (36 inches)^3

1 cubic yard = 46656 cubic inches

2.5 cubic yards = 2.5*46656 = 116,640 cubic inches.

Answer:

4/5

Step-by-step explanation:

the area of rectangle is length × breadth

length = 2 2/5 breadth = 1/3

2 2/5 × 1/3 = 12/15

reducing to the lowest term =4/5

Step-by-step explanation:

2 2/5 × 1/3 = 12/15

Reduced is 4/5

Hope this helps

Brainliest

Answer:

2 hours

Step-by-step explanation:

3*2=6

bc 3mph times 2 its 6 miles

Answer: 2 hours

Step-by-step explanation:

Arrange the given data so the units cross out:
6 miles * [tex]\frac{1 hour}{3 miles}[/tex]