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3 years ago

Which of these is NOT an example of flood control?

Mathematics

2 answers:

Dvinal [7]3 years ago

7 0

Answer:

For number one the answer is A and the second answer is A too.

Step-by-step explanation:

nadezda [96]3 years ago

7 0

Answer: Building your house next to a river and Beach restoration by pumping sand from the ocean (While this does not prevent erosion, it can reduce storm damage to coastal development & infrastructure.)

Step-by-step explanation:

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PLEASE HELP I am confused on these equations

mamaluj [8]

Answer:

See below.

Step-by-step explanation:

I'll show you step by step how to do the synthetic division.

You are dividing polynomial -6x^4 + 22x^3 + 3x^2 + 15x + 20 by x - 4.

From the polynomial, you only need the coefficients in descending order of degree as they are written.

-6 22 3 15 20

In synthetic division, you divide by x - b. You are dividing by x - 4, so b = 4.

The 4 is written to the left of the coefficients of the polynomial.

___________________

4 | -6 22 3 15 20

___________________

This is what the setup looks like. You can see it in the problem you were given.

The first step is to just copy the leftmost coefficient straight down to below the line.

___________________

4 | -6 22 3 15 20

___________________

-6

Now multiply b, which is 4, by -6 and write it above and to the right.

___________________

4 | -6 22 3 15 20

-24

___________________

-6

Add 22 and -24 and write it next to -6.

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4 | -6 22 3 15 20

-24

___________________

-6 -2

Multiply 4 by -2 and write it above and to the right. Add vertically.

___________________

4 | -6 22 3 15 20

-24 -8

___________________

-6 -2 -5

Multiply 4 by -5 and write it above and to the right. Add vertically.

___________________

4 | -6 22 3 15 20

-24 -8 -10

___________________

-6 -2 -5 -5

Multiply 4 by -5 and write it above and to the right. Add vertically.

___________________

4 | -6 22 3 15 20

-24 -8 -10 -20

___________________

-6 -2 -5 -5 0

The 4 numbers in the second line are the coefficients of the quotient.

The quotient is 1 degree less than the original polynomial.

The quotient is: -24x^3 - 8x^2 - 10x - 20

The last number on the third line is the remainder. Since here the reminder is zero, that means that this division has no remainder. The remainder is 0/(x - 4)

Fill in the boxes with:

-24, -8, -10, -20

-6, -2, -5, -5, 0

-24x^3 - 8x^2 - 10x - 20

6 0

3 years ago

The triangles shown have the same perimeter. What is the value of x?

olga nikolaevna [1]

Answer:

Step-by-step explanation:

Since you know the perimeters are equal, write your equation.

x+6 + x+6 + x+6 = x + x+6 + 2x-6

combine like terms

3x + 18 = 4x

isolate your x by subtracting 3x from each side

18 = x

check your answer:

3x + 18 = 72

4x = 72

8 0

2 years ago

A circle has a diameter of 35 cm. What does the circumference of the circle

Afina-wow [57]

Answer:

c=109.96

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Jenny is making tie-dyed shirts for her class with her school colors,blue and yellow.she used a total of 8 ounces of fabric pain

Elodia [21]

Question:

Jenny is making tie-dyed shirts for her class with her school colors, blue and yellow. She used a total of 8 ounces of fabric paint. The amount of blue paint is 3 times the amount of yellow paint. Make a diagram to show the ratio of blue paint to yellow paint

Answer:

The ratio of blue paint to yellow paint is 3 : 1

Solution:

Let "x" be the amount of blue paint in ounces

Let "y" be the amount of yellow paint in ounces

She used a total of 8 ounces of fabric paint

Therefore,

x + y = 8 -------- eqn 1

The amount of blue paint is 3 times the amount of yellow paint

Amount of blue paint = 3 times the amount of yellow paint

x = 3y ------- eqn 2

Substitute eqn 2 in eqn 1

3y + y = 8

4y = 8

Divide both sides by 4

y = 2

Substitute y = 2 in eqn 2

x = 3(2)

x = 6

Therefore , the amount of blue paint is 6 ounces and the amount of yellow paint is 2 ounces

Find the ratio

To find out the ratio of blue paint to yellow paint, divide the amount of blue paint by the amount of yellow paint

$\frac{x}{y} = \frac{6}{2} = \frac{3}{1}$

Which means, of every 4 parts of paint, three parts are blue and one part is yellow

The diagram is attached below

4 0

3 years ago

X = 95 (7x - 4) (3x + 23)° (9x – 6)

anygoal [31]

Answer:

661 is for the first 308 for second 849 for last

Step-by-step explanation:

3 0

3 years ago