MATHEMATICS HIGH SCHOOL

Find the product. 4x3y(-2x2y) Evaluate b2c-1 for b = -4 and c = 2.

Find the product. (n 3)3 · (n 4)5

Answers

Answer 1
Answer:

Answer:

-8x^5y^2

Step-by-step explanation:
Answer 2
Answer: 1. 
4x(3y(-2x2y)) \n 4x(-2x6y) \n -8x × 6y

2. ((-4) × 2 × 2) - 1 = -17

3. 3(n×3) × 5(n×4)
= 3n × 9 × 5n × 20
= 15n × 180
= 2700n

Double-check what I did, as you were missing brackets and some operations, and I had to guess based on what you have

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The Jurassic zoo charges $12 for each adult admission and $7 for each child. The total bill for 129 people was $1088. How many adults and how many children?

Answers

there were 155 kids at the zoo & 90 adults 1088÷7=155 1088÷12=90

Which are acceptable names for the plane?Choose all answers that are correct.

A. Plane AU

B. Plane JAU

C. Plane R

D. Plane ABC

Answers

I would say C.) and B.) would be the answer

Simplify

2 x m x n x 8​

Answers

Based on the given expression, he simplified expression is 16mn.

How to simplify the expression

To simplify the expression 2 x m x n x 8,  multiply the coefficients and combine the variables.

2 x m x n x 8 = 2 * 8 * m * n

Multiplying the coefficients

2 * 8 = 16

Now  rearrange the variables:

16 * m * n

So, the simplified expression is 16mn.

Read on Simplify on brainly.com/question/28780542

#SPJ3
16mn
Find the products of the numbers
And 16mn basically just means 16xmxn

Write each percent as a decimal and as a mixed number or fraction in the simplest form.0.35%

Answers

Answer:

0.0035 in decimal form

7/2000 in fraction form

Step-by-step explanation:

math .way helps a lot with problems like this

Answer:

0.0035 in decimal form

7/2000 in fraction form

Step-by-step explanation:

math .way helps a lot with problems like this

Step-by-step explanation:

The town of gettysburg, PA, plans to shoot a live cannon as part of their annual Gettysburg Civil War Battle Reenactment. The organizers want to make sure that when they fire the cannon, it lands in a location that does not injure any participants or spectators. The slope of the field they are firing into can be represented by the equation y=0.15x. Let x represent horizontal distance, and y represents vertical distance.. if the cannon fires the cannon ball at an arc denoted by the equation y=-0.5x^2+2.5x+1, at what distance will the cannonball land. -I know i'm supposed to set -0.5x^2+2.5x+1=.15x and use distance formula BUT I KEEP GETTING DIFFERENT ANSWERS.

Answers

Answer:

The cannonball lands at approximately 5.093 unit distance from the point of fire

Step-by-step explanation:

The given parameters are;

The arc denoting the equation of motion of the cannon is y₁ = -0.5·x² + 2.5·x + 1

The slope of the field where in the direction the cannon is fired is y₂ = 1.5·x

The points where the cannonball land on the slopping field is given as rightly pointed by equating the two equations, the cannonball path path and the field path as follows;

At the point of contact of the cannonball and the field, the y-values of both equation will be equal

y₁ = y₂

∴ -0.5·x² + 2.5·x + 1 = 0.15·x

Which gives;

-0.5·x² + 2.5·x - 0.15·x + 1 = 0

-0.5·x² + 2.35·x + 1 = 0

-(-0.5·x² + 2.35·x + 1) = 0.5·x² - 2.35·x - 1 = 0

0.5·x² - 2.35·x - 1 = 0

The above equation is in the general form of a quadratic equation, which is given as follows;

a·x² + b·x + c = 0

By the quadratic equation, we have;

x = \frac{-b\pm \sqrt{b^(2)-4\cdot a\cdot c}}{2\cdot a}

Plugging in the values, gives;

x = \frac{2.35\pm \sqrt{(2.35)^(2)-4\cdot (0.5)* (-1)}}{2\cdot (0.5)} = (2.35\pm √(7.5225))/(1) =2.35 \pm √(7.5225)

∴ x ≈ 5.093 or x ≈ -0.393

Therefore, the cannonball will takeoff at x ≈ -0.393 and land at x ≈ 5.093

The height from which they fire the cannon is given by the substituting the value of x ≈ -0.393 into the equation for the path of the cannonball, to give;

y_((initial)) = -0.5·(-0.393)² + 2.5·(-0.393) + 1 = -0.0597

y_((initial)) ≈ -0.0597.

However, the actual initial height from which the cannonball is fired given by placing x = 0, which gives y = 1, which is the reason for the other (negative) value for x. Please see the attached graph created with Microsoft Excel.

What is the digit in the thousandths in the number 35.847

Answers

Answer:

7

Step-by-step explanation:

7 is three places to the right of the decimal point, and therefore the thousandths place

After the decimal place, this is how the order goes:

tenths, hundredths, thousandths

Take the number 1.234

1.(2)34 tenths place

1.2(3)4 hundredths place

1.23(4) thousandths place

2 is in the tenths place

3 is in the hundredths place

4 is in the thousandths place

Good luck :)

(Sorry for the first answer I gave, I didn't read that clearly...)
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