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Aleksandr-060686 [28]

2 years ago

10

When given an algebraic expression involving subtraction, why is it best to rewrite the expression using addition before identif

ying the terms?

1 answer:

yarga [219]2 years ago

8 0

Since it doesn't mention multiplication, no. What would be the point of rewriting an expression from 3-2 to 3+(-2)?

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The population of bacteria can be modeled by the function below, where t represents the time since the population started decayi

Oksana_A [137]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete. I will assume the function is:

$f(t) = 15(0.86)^t$

Required

Determine the rate of decay

In an exponential function $f(x) = ab^x$ ,

The decay rate of the function is calculated as:

$1 - r = b$

By comparison:

$b = 0.86$

So, the equation becomes:

$1 - r = 0.86$

Make r the subject

$r = 1 - 0.86$

$r = 0.14$

<em>The rate of decay is 0.14</em>

3 0

3 years ago

How do you get 25 for the order of operations

mojhsa [17]

PEMDAS Solve the parentheses first so 9+4=13. Then do the division so 6/6=1. Now the equation is 37- 13+ 1. Then work left to right. 37-13= 24 then 24+1=25.

5 0

3 years ago

Jean listed the steps involved in the life cycle of a gymnosperm. 1 - The pollen gets stuck in a sticky liquid. 2 - Sperm from t

Andrews [41]

Answer:

b

Step-by-step explanation:

8 0

2 years ago

HELP!<br> Find the Area of the triangle

Zigmanuir [339]

Answer:

A ≈ 65.8 m²

Step-by-step explanation:

Given 2 sides and the angle between them then the area (A) is

A = $\frac{1}{2}$ bc sinA

= 0.5 × 19.9 × 10.7 × sin38.17°

≈ 65.8 m² ( to 1 dec. place )

6 0

2 years ago

The lengths of three sides of a triangle are (x + 6) inches, (2x - 2) inches, and (2x+ 6) inches.

Kamila [148]

Answer:

21 inches answer F

Step-by-step explanation:

x+6+2x-2+2x+6=85

5x+10=85

5x=75

x=15

shortest is x+6

15+6

21.

Hope this helps plz hit the crown :D

5 0

2 years ago