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2 years ago

If property damage due to erosion along the coast is $60 million each year, how many money would be spent in 4 years?

Mathematics

2 answers:

Slav-nsk [51]2 years ago

6 0

Answer:

$240 million

Step-by-step explanation:

In 1 year, $ 60 million would be spent

in 4 years,$ (60 x 4) million or $240 million would be spent

attashe74 [19]2 years ago

3 0

$200 million because you’re multiplying how many times you have to pay $60 million each year for 4 years.

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The base of an isosceles triangle is one and a half times the length of the other two sides.A smaller triangle has a perimeter t

Anna11 [10]

Answer:

Perimeter of the smaller triangle = 1.75x

Step-by-step explanation:

Let the two equal sides of an isosceles triangle = x

Therefore, length of the base = $(1\frac{1}{2})x$

Perimeter of this isosceles triangle = x + x + $(1\frac{1}{2})x$

= 2x + $(1+\frac{1}{2})x$

= 2x + x + $\frac{x}{2}$

= $\frac{5x}{2}$

Since, smaller triangle has a perimeter that is half the perimeter of the larger triangle,

Length of each corresponding side of smaller triangle will be half of the larger triangle.

Length of sides of the smaller triangle = $\frac{x}{2},\frac{x}{2},(1\frac{1}{2})\frac{x}{2}$

Perimeter of the smaller triangle = $\frac{x}{2}+\frac{x}{2}+(1\frac{1}{2})\frac{x}{2}$

= x + $\frac{x}{2}+\frac{x}{4}$

= $\frac{3}{2}x+\frac{x}{4}$

= $\frac{6}{4}x+\frac{x}{4}$

= $\frac{7}{4}x$

= 1.75x

Therefore, expression that represents the perimeter of the smaller triangle is (1.75x)

4 0

2 years ago

Multiply.Express your answer in standard form.(3 points)(x² -4x + 3)(-3x²+ 7x –1)

bija089 [108]

Answer:

-3x^{4} + 19x^{3} - 38x^{2} + 25x - 3

Step-by-step explanation:

1) distribute x² into (-3x² + 7x - 1) to get: -3x^{4} + 7x³ - x²

2) distribute -4x into (-3x² + 7x - 1) to get: 12x³ - 28x + 4x

3) distribute 3 into (-3x² + 7x - 1) to get: -9x² + 21x - 3

4) combine all the answers together into one equation:

-3x^{4} + 7x³ - x² + 12x³ - 28x² + 4x - 9x² + 21x - 3

5) combine like terms:

7x³ + 12x³ = 19x³

-x² + -28x² + -9x² = -38x²

4x + 21x = 25x

6) combine answers together into one equation:

-3x^{4} + 19x³ - 38x² + 25x - 3

3 0

3 years ago

The perimeter of a rectangle is 52 feet. The length is 2 more than twice the width. What is the length of the rectangle?

SashulF [63]

Answer: The Length of the rectangle is 18 feet.

The width is 8 feet

Step-by-step explanation: Perimeter is 2w + 2L

Length here is 2w + 2 Substitute this value for L in the equation.

P = 2w + 2L

52 = 2w + 2(2w + 2) distribute and add

52 = 2w + 4w + 4

52 = 6w + 4 Subtract 4 from both sides, Then divide both sides by 6 to solve for w

48 = 6w

8 = w The width is 8 ft

Substitute into the original expression for Length

Length here is 2w + 2 : 2(8) + 2 16 + 2 = 18

The Length is 18 feet.

Check: in the original equation P = 2w + 2L

52 = 2(8) + 2(18)

52 = 16 + 36 TRUE!

3 0

2 years ago

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Can someone please help me with number 11

vazorg [7]

Here is the answer:
if you need step by step let me know

4 0

3 years ago

A cone-shaped pile of sawdust has a base diameter of 32 feet, and is 12 feet tall. Find the volume of the pile.

Darya [45]

Answer:

3216.99ft

Step-by-step explanation:

the formula for the volume of a cone is V=πr^2h/3

6 0

3 years ago

Read 2 more answers