the question is in the photo :)

Answer:

The miner would have 3 1/2 of radioactive material in the sample at the beginning of the 7th day.

Step-by-step explanation:

hope this helped!

Answer:

72

Step-by-step explanation:

Answer:

Arianna is correct

Step-by-step explanation:

She is correct because they need to find how much is the discounted price, which is 3. So to see what percentage it is, they need to see how much 3 is worth in comparison to 15. If we spilt 15 into 5 parts to make every part worth 20%, the answer would be 3. Thus Arianna is correct.

Answer:

1152 ft^2

Step-by-step explanation:

There are 7 faces on this solid.

I will label the faces and will calculate each area with an explanation.

Faces 1 and 2:

The front face and the back face are congruent and have 5 sides each. Each face is a rectangle with a triangle above it. The lower rectangular part has dimensions 9 ft by 12 ft. The triangle above the rectangle has base 9 ft and height 16 ft - 12 ft = 4 ft.

Each face is a rectangle and a triangle.

area = area of rectangle + area of triangle

area = LW + bh/2

area = 9 ft * 12 ft + 9 ft * 4 ft/2 = 108 ft^2 + 18 ft^2 = 126 ft^2

This is area of of face 1, the front face. Face 2, the rear face has the same area.

A1 = 126 ft^2

A2 = 126 ft^2

Face 3: The bottom of the solid is a rectangle measuring 9 ft by 20 ft

area = LW

area = 9 ft * 20 ft = 180 ft^2

A3 = 180 ft^2

Faces 4 and 5:

The left vertical face and the right vertical face are congruent rectangles measuring 12 ft by 20 ft.

area = LW

area = 12 ft * 20 ft = 240 ft^2

A4 = 240 ft^2

A5 = 240 ft^2

Faces 6 and 7 are the top right and left inclined rectangles. They are congruent, and each one has dimensions 6 ft by 20 ft.

area = LW

area = 6 ft * 20 ft = 120 ft^2

We need 2 of these area.

A6 = 120 ft^2

A7 = 120 ft^2

total surface area = A1 + A2 + A3 + A4 + A5 + A6 + A7

total surface area = 126 ft^2 + 126 ft^2 + 180 ft^2 + 240 ft^2 + 240 ft^2 +  120 ft^2 + 120 ft^2

total surface area = 1152 ft^2

Answer:

94 Minutes.

Step-by-step explanation:Subtract 220 from 314 and you get 94. To check you add 220 to 94 and you get 314. Hope this helped.

Answer:

a. t = I/Pr

b. The value of t in the table is 3 years

Step-by-step explanation:

Solve for t in the formula.

I = Pr

~Divide pr to both sides

I/Pr = t

Using the formula above, we can solve for t.

75/(500)(0.05) = t

75/25 = t

3 = t

Best of Luck!

Answer: The drawing in the attached figure

Step-by-step explanation: we know that

An isosceles triangle, has two equal sides and two equal interior angles

In this problem, the floor of the entryway to an office building is in the shape of an isosceles triangle

step 1

Find the measure of the vertex angle

Remember that

The sum of the interior angles in any triangle must be equal to 180 degrees

so

Let

x ---> the measure of the vertex angle of triangle

step 2

Find the length of the congruent sides of triangle

Applying the law of sines

Let

c ----> the length of one congruent side

we have

substitute

solve for b

step 2

Make a scale drawing of the entryway

The scale drawing is 1 cm : 2 cm

That means

1 cm in the drawing represent 2 cm in the actual

or

1 cm in the drawing represent 0.02 m in the actual

Find the dimensions in the drawing

For a=8 m

For b=5.22 m

step 3

Draw the triangle

Answer:

B is the answer :-))))

Step-by-step explanation:

have a nice day

Answer:

The Correct answer is B

Step-by-step explanation:

A interview is something formal when applying to a job its not causal because you and the person interviewing you is being very formal its also a conversation including 2 or more people depending on how the company you apply for decides to do there interview hope this helps :)

Answer:

I think the answer is D

Step-by-step explanation:

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

Step-by-step explanation:

Given that function 1 has the table;

x  y

0 -2

2  0

3   1

5   3

Finding the slope of the linear function gives the rate of change of the function. In this case,

m=Δy/Δx

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

The equation of the linear function is given as;

m=Δy/Δx

y-3/x-5= 1

y-3=x-5

y=x-5+3

y=x-2

y-intercept is -2

In function 2, the line passes through points (-2,0) and (0,4)

Finding the slope of the line,

m₁=Δy/Δx

m₁=4-0/0--2

m₁= 4/2 =2

Rate of change is 2

Finding the equation of the line

y-4/x-0 = 2

y-4=2(x-0)

y-4 =2x

y=2x+4

The y-intercept is 4

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

Answer:

2 6/15 + 2 10/15 or the first one

Step-by-step explanation:

Im so glad I could help! I hope you pick my answer as the Brainliest!

Answer:

Step-by-step explanation:

Since this is a test, I'll give a hint.

This problem can be a little confusing, but thats ok! The problem is trying to make two models, (each model is a number) and asking you to find what the addition sentence is.

If that makes you confused, then that's probably the right response! The first thing you would need to know is what are they dividing the whole circles of? Thirds? Seconds? Sixths?

You would then need to know how many whole numbers are there. "Whole numbers" are basscially fully shaded circles.

Hope this helps!

Answer:

To find the time to reach ground solve - 16t^2 + 55 = 0

t^2 = 55/16

t = sqrt55 / 4 = 1.85 seconds

Step-by-step explanation:

Answer:

i need a better pic but i can help you

Step-by-step explanation:

Answer:

i think a

Step-by-step explanation:

Answer: I think the answer is A Not sure

Step-by-step explanation:

Answer:

7m^3-11m^2+5m+17

Step-by-step explanation:

it'll be really hard to show work so just trust me on this one-

hope it helps <3

Answer:

Step-by-step explanation:

Answer:

Equations 2, 3, and 4 are linear

Step-by-step explanation:

Equation 1 is a parabola and equation 5 is a Rational function

Answer:

in the explanation

Step-by-step explanation:

rs=2^2+4^2=20cm

sq root of 20=4.472135955 (round down to how much you like, probably 1dp)

qt=4^2+8^2=80cm

sq root of 80= 8.94427191

for the other pic just do [tex]\sqrt{80}[/tex] takeaway [tex]\sqrt{20}[/tex], which is 4.472135955 and round down to how much u like

Answer:

Look at the attachment

Step-by-step explanation:

There are 12 children tickets did the group buy.

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

Given that;

The group bought 20 admission tickets for $340.

And, Adult tickets cost $20, and children’s tickets cost $15.

Let number of children = x

And, Number of adult = y

Hence, We get;

The system of equations are,

x + y = 20  

y = 20 - x .. (i)

And, 15x + 20y = 340

3x + 4y = 68 .. (ii)

Substitute the value of y from (i) in (ii);

3x + 4(20 - x) = 68

3x + 80 - 4x = 68

80 - 68 = x

x = 12

Thus, There are 12 children tickets did the group buy.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ3

Answer:

the one on top

Step-by-step explanation:

Answer:

"the one on the top"

Step-by-step explanation:

EZZZZZZZZZZZZZZZZZZZZZZZz

Answer:

3 2/5

Step-by-step explanation:

Answer:

3 [tex]\frac{2}{5}[/tex]

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

20 divided by 20 is 1. 1 - 5 is negative 4

Answer:

R = 20

q = 19

Step-by-step explanation:

Have a nice day............

Answer:

I am not sure because this is just an expression but I have a feeling I know where your teacher is going with this.

Step-by-step explanation:

She is saying the variable B stands for 14 feet and the variable C is 20 feet.

Answer:

It represents a proportional relationship

Step-by-step explanation

I am not good at math so ya

Answer:

Step-by-step explanation:

Yes

Answer:

-9

Step-by-step explanation:

Answer:

Just post the questions here on brainly so we can help you answer thwm. Thats what this website is for! =D

Step-by-step explanation:

Answer:your username and pasword

Step-by-step explanation: