3 years ago

Please HELP! I will mark best answer as brainliest

1 answer:

8 0

Its decreased by 200 in the 4 years from 1994 to 1998 That is 50 less per year
In 1990 the population would have been 2500
So the required formula is

P = -50t + 2500 ( or you could write it as P = 2500 - 50t

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A rectangle has a height of a² + 3 and a width of a² + 2a + 5.

valentina_108 [34]

Answer:

Area = $a^4+2a^3+8a^2+6a+15$

Step-by-step explanation:

The area of a rectangle is given by:

Area = Height * Width

The expressions for height and width are given. We just need to multiply and add like terms (if applicable) to find the expression for the area of the rectangle.

Remember to use distributive property:

$(a+b)(x+y) = ax + ay + bx + by$

Thus, we have:

$(a^2+3)(a^2+2a+5)\\=(a^2)(a^2)+(a^2)(2a)+(a^2)(5)+3a^2+6a+15\\=a^4+2a^3+5a^2+3a^2+6a+15\\=a^4+2a^3+8a^2+6a+15$

THis is the expression for area.

5 0

3 years ago

Two increased by the product of a number and 9 is greater than or equal to 25.

Marianna [84]

Answer:

x≥2.56

Step-by-step explanation:

first we can write the inequality

2+9x≥25

we can now solve this with algebra

9x≥23

x≥2.56

3 0

3 years ago

HELP ME PLEASEEE UGHHH I HATE IXL HELP ME GUYS !!!!!!!!

Sedaia [141]

Yea what the other guy said

4 0

3 years ago

The scale on a drawing is 3 in.:4 ft. The actual length of the object is 24 feet. How many inches is the length of the object on

Morgarella [4.7K]

In:ft
3:4
x:24--- to find x, multiply each side by 6, because 24/4=6
3*6:24
18:24
The length of the object is 18 in. I think this is what your asking, but I'm not sure because I didn't quite understand the wording on the problem.

3 0

2 years ago

A cable car travels at a constant speed of 60 feet per minute for a part of its route. At this speed, how long will it take to t

Semmy [17]

1 yard= 6 foot
1160 yards= 3480 foot
3480/60=58
It will take 58 minutes to travel 1160 yards

3 0

3 years ago