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Sliva [168]
3 years ago
8

PLEASE HELP ME ASAP WILL MARK BARINLIEST

Mathematics
1 answer:
Lesechka [4]3 years ago
8 0

Answer:

Yes, she is Correct

Step-by-step explanation:

I could prove this through writing the exponential equation that resembles this equation, but it's simpler than that:

It mentions that the population would be half of what it was before (a decade before). Now it is safe to say that every exponential (not decaying) equation gradually increases so that every value differs from it's consecutive value through multiplication of a constant.

<em>That is why, given the population would be half of what it was before, 0.5 acts as the 'constant' and the word problem can be modeled by an exponential graph + exponential function.</em>

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The area of an isosceles right triangle is 121 ft squared. What is the approximate length of each of the two equal sides?
Trava [24]

Answer:

15.56 ft  

Step-by-step explanation:

The formula for the area of a triangle is

A = ½bh

This is an isosceles triangle, so b = h.

Substitute the value of h

A = ½b² = 121

Multiply each side by 2

b² = 242

Take the square root of each side of the equation.

b = √242 ≈15.56 ft

The length of the two equal sides of the triangle is approximately 15.56 ft.

<em>Check: </em>

A = ½(15.56)² = ½× 242 = 121 ft²

4 0
3 years ago
HELP ASAP!!!!! SOMEONE ABLE TO HELP??!?!?
Ganezh [65]

Answer:

(x+c)(x-d)

Step-by-step explanation:

if x²-ax-b=(x-c)(x+d)

from vieta theorem

c + d =  -(-a)=a

cd = b

if x²+ax-b

from vieta theorem

c + d =  -(a)=-a  

cd = b

so the same c d but in opposite  sign (x+c)(x-d)

7 0
3 years ago
Simplify and solve for x. ​ ​ 5(x+20)= 7x+30
hodyreva [135]

Answer:

x = 35

Step-by-step explanation:

Solve for x:

5 (x + 20) = 7 x + 30

Expand out terms of the left hand side:

5 x + 100 = 7 x + 30

Subtract 7 x from both sides:

(5 x - 7 x) + 100 = (7 x - 7 x) + 30

5 x - 7 x = -2 x:

-2 x + 100 = (7 x - 7 x) + 30

7 x - 7 x = 0:

100 - 2 x = 30

Subtract 100 from both sides:

(100 - 100) - 2 x = 30 - 100

100 - 100 = 0:

-2 x = 30 - 100

30 - 100 = -70:

-2 x = -70

Divide both sides of -2 x = -70 by -2:

(-2 x)/(-2) = (-70)/(-2)

(-2)/(-2) = 1:

x = (-70)/(-2)

The gcd of -70 and -2 is -2, so (-70)/(-2) = (-2×35)/(-2×1) = (-2)/(-2)×35 = 35:

Answer: x = 35

6 0
4 years ago
Read 2 more answers
Simplify each polynomial 3a^2 - 2a - 4 + 2a -3a^2 + 5
love history [14]

3a² - 2a - 4 + 2a -3a² + 5


Put all the like terms together

= 3a² -3a² + 2a - 2a + 5 - 4


Combine like terms

= 1


Answer: 1

5 0
3 years ago
Read 2 more answers
Write an equation that represents the following statement: 6 less than the product of r and 4 is 2
3241004551 [841]

Answer: R x 4 - 6

Step-by-step explanation:

8 0
3 years ago
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